Merge tag 'leds-for-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
Pull LED updates from Jacek Anaszewski:
"In this cycle we've finally managed to contribute the patch set
sorting out LED naming issues. Besides that there are many changes
scattered among various LED class drivers and triggers.
LED naming related improvements:
- add new 'function' and 'color' fwnode properties and deprecate
'label' property which has been frequently abused for conveying
vendor specific names that have been available in sysfs anyway
- introduce a set of standard LED_FUNCTION* definitions
- introduce a set of standard LED_COLOR_ID* definitions
- add a new {devm_}led_classdev_register_ext() API with the
capability of automatic LED name composition basing on the
properties available in the passed fwnode; the function is
backwards compatible in a sense that it uses 'label' data, if
present in the fwnode, for creating LED name
- add tools/leds/get_led_device_info.sh script for retrieving LED
vendor, product and bus names, if applicable; it also performs
basic validation of an LED name
- update following drivers and their DT bindings to use the new LED
registration API:
- leds-an30259a, leds-gpio, leds-as3645a, leds-aat1290, leds-cr0014114,
leds-lm3601x, leds-lm3692x, leds-lp8860, leds-lt3593, leds-sc27xx-blt
Other LED class improvements:
- replace {devm_}led_classdev_register() macros with inlines
- allow to call led_classdev_unregister() unconditionally
- switch to use fwnode instead of be stuck with OF one
LED triggers improvements:
- led-triggers:
- fix dereferencing of null pointer
- fix a memory leak bug
- ledtrig-gpio:
- GPIO 0 is valid
Drop superseeded apu2/3 support from leds-apu since for apu2+ a newer,
more complete driver exists, based on a generic driver for the AMD
SOCs gpio-controller, supporting LEDs as well other devices:
- drop profile field from priv data
- drop iosize field from priv data
- drop enum_apu_led_platform_types
- drop superseeded apu2/3 led support
- add pr_fmt prefix for better log output
- fix error message on probing failure
Other misc fixes and improvements to existing LED class drivers:
- leds-ns2, leds-max77650:
- add of_node_put() before return
- leds-pwm, leds-is31fl32xx:
- use struct_size() helper
- leds-lm3697, leds-lm36274, leds-lm3532:
- switch to use fwnode_property_count_uXX()
- leds-lm3532:
- fix brightness control for i2c mode
- change the define for the fs current register
- fixes for the driver for stability
- add full scale current configuration
- dt: Add property for full scale current.
- avoid potentially unpaired regulator calls
- move static keyword to the front of declarations
- fix optional led-max-microamp prop error handling
- leds-max77650:
- add of_node_put() before return
- add MODULE_ALIAS()
- Switch to fwnode property API
- leds-as3645a:
- fix misuse of strlcpy
- leds-netxbig:
- add of_node_put() in netxbig_leds_get_of_pdata()
- remove legacy board-file support
- leds-is31fl319x:
- simplify getting the adapter of a client
- leds-ti-lmu-common:
- fix coccinelle issue
- move static keyword to the front of declaration
- leds-syscon:
- use resource managed variant of device register
- leds-ktd2692:
- fix a typo in the name of a constant
- leds-lp5562:
- allow firmware files up to the maximum length
- leds-an30259a:
- fix typo
- leds-pca953x:
- include the right header"
* tag 'leds-for-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: (72 commits)
leds: lm3532: Fix optional led-max-microamp prop error handling
led: triggers: Fix dereferencing of null pointer
leds: ti-lmu-common: Move static keyword to the front of declaration
leds: lm3532: Move static keyword to the front of declarations
leds: trigger: gpio: GPIO 0 is valid
leds: pwm: Use struct_size() helper
leds: is31fl32xx: Use struct_size() helper
leds: ti-lmu-common: Fix coccinelle issue in TI LMU
leds: lm3532: Avoid potentially unpaired regulator calls
leds: syscon: Use resource managed variant of device register
leds: Replace {devm_}led_classdev_register() macros with inlines
leds: Allow to call led_classdev_unregister() unconditionally
leds: lm3532: Add full scale current configuration
dt: lm3532: Add property for full scale current.
leds: lm3532: Fixes for the driver for stability
leds: lm3532: Change the define for the fs current register
leds: lm3532: Fix brightness control for i2c mode
leds: Switch to use fwnode instead of be stuck with OF one
leds: max77650: Switch to fwnode property API
led: triggers: Fix a memory leak bug
...
diff --git a/Documentation/devicetree/bindings/leds/ams,as3645a.txt b/Documentation/devicetree/bindings/leds/ams,as3645a.txt
index fdc40e3..4af2987 100644
--- a/Documentation/devicetree/bindings/leds/ams,as3645a.txt
+++ b/Documentation/devicetree/bindings/leds/ams,as3645a.txt
@@ -39,7 +39,9 @@
Optional properties of the flash child node
===========================================
-label : The label of the flash LED.
+function : See Documentation/devicetree/bindings/leds/common.txt.
+color : See Documentation/devicetree/bindings/leds/common.txt.
+label : See Documentation/devicetree/bindings/leds/common.txt (deprecated).
Required properties of the indicator child node (1)
@@ -52,28 +54,32 @@
Optional properties of the indicator child node
===============================================
-label : The label of the indicator LED.
+function : See Documentation/devicetree/bindings/leds/common.txt.
+color : See Documentation/devicetree/bindings/leds/common.txt.
+label : See Documentation/devicetree/bindings/leds/common.txt (deprecated).
Example
=======
+#include <dt-bindings/leds/common.h>
+
as3645a@30 {
- #address-cells: 1
- #size-cells: 0
+ #address-cells = <1>;
+ #size-cells = <0>;
reg = <0x30>;
compatible = "ams,as3645a";
- flash@0 {
+ led@0 {
reg = <0x0>;
flash-timeout-us = <150000>;
flash-max-microamp = <320000>;
led-max-microamp = <60000>;
ams,input-max-microamp = <1750000>;
- label = "as3645a:flash";
+ function = LED_FUNCTION_FLASH;
};
- indicator@1 {
+ led@1 {
reg = <0x1>;
led-max-microamp = <10000>;
- label = "as3645a:indicator";
+ function = LED_FUNCTION_INDICATOR;
};
};
diff --git a/Documentation/devicetree/bindings/leds/common.txt b/Documentation/devicetree/bindings/leds/common.txt
index 70876ac..9fa6f97 100644
--- a/Documentation/devicetree/bindings/leds/common.txt
+++ b/Documentation/devicetree/bindings/leds/common.txt
@@ -10,14 +10,30 @@
have to be tightly coupled with the LED device binding. They are represented
by child nodes of the parent LED device binding.
+
Optional properties for child nodes:
- led-sources : List of device current outputs the LED is connected to. The
outputs are identified by the numbers that must be defined
in the LED device binding documentation.
+
+- function: LED functon. Use one of the LED_FUNCTION_* prefixed definitions
+ from the header include/dt-bindings/leds/common.h.
+ If there is no matching LED_FUNCTION available, add a new one.
+
+- color : Color of the LED. Use one of the LED_COLOR_ID_* prefixed definitions
+ from the header include/dt-bindings/leds/common.h.
+ If there is no matching LED_COLOR_ID available, add a new one.
+
+- function-enumerator: Integer to be used when more than one instance
+ of the same function is needed, differing only with
+ an ordinal number.
+
- label : The label for this LED. If omitted, the label is taken from the node
name (excluding the unit address). It has to uniquely identify
a device, i.e. no other LED class device can be assigned the same
- label.
+ label. This property is deprecated - use 'function' and 'color'
+ properties instead. function-enumerator has no effect when this
+ property is present.
- default-state : The initial state of the LED. Valid values are "on", "off",
and "keep". If the LED is already on or off and the default-state property is
@@ -99,29 +115,59 @@
* Examples
-gpio-leds {
+#include <dt-bindings/leds/common.h>
+
+led-controller@0 {
compatible = "gpio-leds";
- system-status {
- label = "Status";
+ led0 {
+ function = LED_FUNCTION_STATUS;
linux,default-trigger = "heartbeat";
gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
};
- usb {
+ led1 {
+ function = LED_FUNCTION_USB;
gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
trigger-sources = <&ohci_port1>, <&ehci_port1>;
};
};
-max77693-led {
+led-controller@0 {
compatible = "maxim,max77693-led";
- camera-flash {
- label = "Flash";
+ led {
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_WHITE>;
led-sources = <0>, <1>;
led-max-microamp = <50000>;
flash-max-microamp = <320000>;
flash-max-timeout-us = <500000>;
};
};
+
+led-controller@30 {
+ compatible = "panasonic,an30259a";
+ reg = <0x30>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@1 {
+ reg = <1>;
+ linux,default-trigger = "heartbeat";
+ function = LED_FUNCTION_INDICATOR;
+ function-enumerator = <1>;
+ };
+
+ led@2 {
+ reg = <2>;
+ function = LED_FUNCTION_INDICATOR;
+ function-enumerator = <2>;
+ };
+
+ led@3 {
+ reg = <3>;
+ function = LED_FUNCTION_INDICATOR;
+ function-enumerator = <3>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/leds/leds-aat1290.txt b/Documentation/devicetree/bindings/leds/leds-aat1290.txt
index 85c0c58..62ed17e 100644
--- a/Documentation/devicetree/bindings/leds/leds-aat1290.txt
+++ b/Documentation/devicetree/bindings/leds/leds-aat1290.txt
@@ -32,15 +32,18 @@
formula: T = 8.82 * 10^9 * Ct.
Optional properties of the LED child node:
-- label : see Documentation/devicetree/bindings/leds/common.txt
+- function : see Documentation/devicetree/bindings/leds/common.txt
+- color : see Documentation/devicetree/bindings/leds/common.txt
+- label : see Documentation/devicetree/bindings/leds/common.txt (deprecated)
Example (by Ct = 220nF, Rset = 160kohm and exynos4412-trats2 board with
a switch that allows for routing strobe signal either from the host or from
the camera sensor):
#include "exynos4412.dtsi"
+#include <dt-bindings/leds/common.h>
-aat1290 {
+led-controller {
compatible = "skyworks,aat1290";
flen-gpios = <&gpj1 1 GPIO_ACTIVE_HIGH>;
enset-gpios = <&gpj1 2 GPIO_ACTIVE_HIGH>;
@@ -50,8 +53,9 @@
pinctrl-1 = <&camera_flash_host>;
pinctrl-2 = <&camera_flash_isp>;
- camera_flash: flash-led {
- label = "aat1290-flash";
+ camera_flash: led {
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_WHITE>;
led-max-microamp = <520833>;
flash-max-microamp = <1012500>;
flash-max-timeout-us = <1940000>;
diff --git a/Documentation/devicetree/bindings/leds/leds-an30259a.txt b/Documentation/devicetree/bindings/leds/leds-an30259a.txt
index 6ffb861..cbd8339 100644
--- a/Documentation/devicetree/bindings/leds/leds-an30259a.txt
+++ b/Documentation/devicetree/bindings/leds/leds-an30259a.txt
@@ -15,10 +15,19 @@
- reg: Pin that the LED is connected to. Must be 1, 2, or 3.
Optional sub-node properties:
- - label: see Documentation/devicetree/bindings/leds/common.txt
- - linux,default-trigger: see Documentation/devicetree/bindings/leds/common.txt
+ - function :
+ see Documentation/devicetree/bindings/leds/common.txt
+ - color :
+ see Documentation/devicetree/bindings/leds/common.txt
+ - label :
+ see Documentation/devicetree/bindings/leds/common.txt (deprecated)
+ - linux,default-trigger :
+ see Documentation/devicetree/bindings/leds/common.txt
Example:
+
+#include <dt-bindings/leds/common.h>
+
led-controller@30 {
compatible = "panasonic,an30259a";
reg = <0x30>;
@@ -28,16 +37,19 @@
led@1 {
reg = <1>;
linux,default-trigger = "heartbeat";
- label = "red:indicator";
+ function = LED_FUNCTION_INDICATOR;
+ color = <LED_COLOR_ID_RED>;
};
led@2 {
reg = <2>;
- label = "green:indicator";
+ function = LED_FUNCTION_INDICATOR;
+ color = <LED_COLOR_ID_GREEN>;
};
led@3 {
reg = <3>;
- label = "blue:indicator";
+ function = LED_FUNCTION_INDICATOR;
+ color = <LED_COLOR_ID_BLUE>;
};
};
diff --git a/Documentation/devicetree/bindings/leds/leds-cr0014114.txt b/Documentation/devicetree/bindings/leds/leds-cr0014114.txt
index 4255b19..f8de751 100644
--- a/Documentation/devicetree/bindings/leds/leds-cr0014114.txt
+++ b/Documentation/devicetree/bindings/leds/leds-cr0014114.txt
@@ -11,14 +11,20 @@
apply. In particular, "reg" and "spi-max-frequency" properties must be given.
LED sub-node properties:
-- label :
+- function :
see Documentation/devicetree/bindings/leds/common.txt
+- color :
+ see Documentation/devicetree/bindings/leds/common.txt
+- label :
+ see Documentation/devicetree/bindings/leds/common.txt (deprecated)
- linux,default-trigger : (optional)
see Documentation/devicetree/bindings/leds/common.txt
Example
-------
+#include <dt-bindings/leds/common.h>
+
led-controller@0 {
compatible = "crane,cr0014114";
reg = <0>;
@@ -28,27 +34,33 @@
led@0 {
reg = <0>;
- label = "red:coin";
+ function = "coin";
+ color = <LED_COLOR_ID_RED>;
};
led@1 {
reg = <1>;
- label = "green:coin";
+ function = "coin";
+ color = <LED_COLOR_ID_GREEN>;
};
led@2 {
reg = <2>;
- label = "blue:coin";
+ function = "coin";
+ color = <LED_COLOR_ID_BLUE>;
};
led@3 {
reg = <3>;
- label = "red:bill";
+ function = "bill";
+ color = <LED_COLOR_ID_RED>;
};
led@4 {
reg = <4>;
- label = "green:bill";
+ function = "bill";
+ color = <LED_COLOR_ID_GREEN>;
};
led@5 {
reg = <5>;
- label = "blue:bill";
+ function = "bill";
+ color = <LED_COLOR_ID_BLUE>;
};
...
};
diff --git a/Documentation/devicetree/bindings/leds/leds-gpio.txt b/Documentation/devicetree/bindings/leds/leds-gpio.txt
index a48dda2..d21281b 100644
--- a/Documentation/devicetree/bindings/leds/leds-gpio.txt
+++ b/Documentation/devicetree/bindings/leds/leds-gpio.txt
@@ -10,8 +10,12 @@
- gpios : Should specify the LED's GPIO, see "gpios property" in
Documentation/devicetree/bindings/gpio/gpio.txt. Active low LEDs should be
indicated using flags in the GPIO specifier.
-- label : (optional)
+- function : (optional)
see Documentation/devicetree/bindings/leds/common.txt
+- color : (optional)
+ see Documentation/devicetree/bindings/leds/common.txt
+- label : (optional)
+ see Documentation/devicetree/bindings/leds/common.txt (deprecated)
- linux,default-trigger : (optional)
see Documentation/devicetree/bindings/leds/common.txt
- default-state: (optional) The initial state of the LED.
@@ -27,30 +31,34 @@
Examples:
#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
leds {
compatible = "gpio-leds";
- hdd {
- label = "Disk Activity";
+ led0 {
gpios = <&mcu_pio 0 GPIO_ACTIVE_LOW>;
linux,default-trigger = "disk-activity";
+ function = LED_FUNCTION_DISK;
};
- fault {
+ led1 {
gpios = <&mcu_pio 1 GPIO_ACTIVE_HIGH>;
/* Keep LED on if BIOS detected hardware fault */
default-state = "keep";
+ function = LED_FUNCTION_FAULT;
};
};
run-control {
compatible = "gpio-leds";
- red {
+ led0 {
gpios = <&mpc8572 6 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_RED>;
default-state = "off";
};
- green {
+ led1 {
gpios = <&mpc8572 7 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_GREEN>;
default-state = "on";
};
};
@@ -58,9 +66,10 @@
leds {
compatible = "gpio-leds";
- charger-led {
+ led0 {
gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "max8903-charger-charging";
retain-state-suspended;
+ function = LED_FUNCTION_CHARGE;
};
};
diff --git a/Documentation/devicetree/bindings/leds/leds-lm3532.txt b/Documentation/devicetree/bindings/leds/leds-lm3532.txt
index c087f85..5379321 100644
--- a/Documentation/devicetree/bindings/leds/leds-lm3532.txt
+++ b/Documentation/devicetree/bindings/leds/leds-lm3532.txt
@@ -62,6 +62,9 @@
- label : see Documentation/devicetree/bindings/leds/common.txt
- linux,default-trigger :
see Documentation/devicetree/bindings/leds/common.txt
+ - led-max-microamp : Defines the full scale current value for each control
+ bank. The range is from 5000uA-29800uA in increments
+ of 800uA.
Example:
led-controller@38 {
@@ -85,6 +88,7 @@
reg = <0>;
led-sources = <2>;
ti,led-mode = <1>;
+ led-max-microamp = <21800>;
label = ":backlight";
linux,default-trigger = "backlight";
};
diff --git a/Documentation/devicetree/bindings/leds/leds-lm3601x.txt b/Documentation/devicetree/bindings/leds/leds-lm3601x.txt
index a88b2c4..095dafb 100644
--- a/Documentation/devicetree/bindings/leds/leds-lm3601x.txt
+++ b/Documentation/devicetree/bindings/leds/leds-lm3601x.txt
@@ -22,9 +22,14 @@
- led-max-microamp : Range from 2.4mA - 376mA
Optional child properties:
- - label : see Documentation/devicetree/bindings/leds/common.txt
+ - function : see Documentation/devicetree/bindings/leds/common.txt
+ - color : see Documentation/devicetree/bindings/leds/common.txt
+ - label : see Documentation/devicetree/bindings/leds/common.txt (deprecated)
Example:
+
+#include <dt-bindings/leds/common.h>
+
led-controller@64 {
compatible = "ti,lm36010";
#address-cells = <1>;
@@ -33,7 +38,8 @@
led@0 {
reg = <1>;
- label = "white:torch";
+ function = LED_FUNCTION_TORCH;
+ color = <LED_COLOR_ID_WHITE>;
led-max-microamp = <376000>;
flash-max-microamp = <1500000>;
flash-max-timeout-us = <1600000>;
diff --git a/Documentation/devicetree/bindings/leds/leds-lm3692x.txt b/Documentation/devicetree/bindings/leds/leds-lm3692x.txt
index 08b3528..4c2d923 100644
--- a/Documentation/devicetree/bindings/leds/leds-lm3692x.txt
+++ b/Documentation/devicetree/bindings/leds/leds-lm3692x.txt
@@ -26,12 +26,16 @@
3 - Will enable the LED3 sync (LM36923 only)
Optional child properties:
- - label : see Documentation/devicetree/bindings/leds/common.txt
+ - function : see Documentation/devicetree/bindings/leds/common.txt
+ - color : see Documentation/devicetree/bindings/leds/common.txt
+ - label : see Documentation/devicetree/bindings/leds/common.txt (deprecated)
- linux,default-trigger :
see Documentation/devicetree/bindings/leds/common.txt
Example:
+#include <dt-bindings/leds/common.h>
+
led-controller@36 {
compatible = "ti,lm3692x";
reg = <0x36>;
@@ -43,7 +47,8 @@
led@0 {
reg = <0>;
- label = "white:backlight_cluster";
+ function = LED_FUNCTION_BACKLIGHT;
+ color = <LED_COLOR_ID_WHITE>;
linux,default-trigger = "backlight";
};
}
diff --git a/Documentation/devicetree/bindings/leds/leds-lp8860.txt b/Documentation/devicetree/bindings/leds/leds-lp8860.txt
index 5f0e892..9863220 100644
--- a/Documentation/devicetree/bindings/leds/leds-lp8860.txt
+++ b/Documentation/devicetree/bindings/leds/leds-lp8860.txt
@@ -20,12 +20,16 @@
- reg : 0
Optional child properties:
- - label : see Documentation/devicetree/bindings/leds/common.txt
+ - function : see Documentation/devicetree/bindings/leds/common.txt
+ - color : see Documentation/devicetree/bindings/leds/common.txt
+ - label : see Documentation/devicetree/bindings/leds/common.txt (deprecated)
- linux,default-trigger :
see Documentation/devicetree/bindings/leds/common.txt
Example:
+#include <dt-bindings/leds/common.h>
+
led-controller@2d {
compatible = "ti,lp8860";
#address-cells = <1>;
@@ -36,7 +40,8 @@
led@0 {
reg = <0>;
- label = "white:backlight";
+ function = LED_FUNCTION_BACKLIGHT;
+ color = <LED_COLOR_ID_WHITE>;
linux,default-trigger = "backlight";
};
}
diff --git a/Documentation/devicetree/bindings/leds/leds-lt3593.txt b/Documentation/devicetree/bindings/leds/leds-lt3593.txt
index 6b2cabc..24eccda 100644
--- a/Documentation/devicetree/bindings/leds/leds-lt3593.txt
+++ b/Documentation/devicetree/bindings/leds/leds-lt3593.txt
@@ -9,8 +9,10 @@
configured in a sub-node in the device node.
Optional sub-node properties:
-- label: A label for the LED. If none is given, the LED will be
- named "lt3595::".
+- function: See Documentation/devicetree/bindings/leds/common.txt
+- color: See Documentation/devicetree/bindings/leds/common.txt
+- label: A label for the LED. If none is given, the LED will be
+ named "lt3595::" (deprecated)
- linux,default-trigger: The default trigger for the LED.
See Documentation/devicetree/bindings/leds/common.txt
- default-state: The initial state of the LED.
@@ -21,12 +23,15 @@
Example:
+#include <dt-bindings/leds/common.h>
+
led-controller {
compatible = "lltc,lt3593";
lltc,ctrl-gpios = <&gpio 0 GPIO_ACTIVE_HIGH>;
led {
- label = "white:backlight";
+ function = LED_FUNCTION_BACKLIGHT;
+ color = <LED_COLOR_ID_WHITE>;
default-state = "on";
};
};
diff --git a/Documentation/devicetree/bindings/leds/leds-sc27xx-bltc.txt b/Documentation/devicetree/bindings/leds/leds-sc27xx-bltc.txt
index dddf84f..df2b4e1 100644
--- a/Documentation/devicetree/bindings/leds/leds-sc27xx-bltc.txt
+++ b/Documentation/devicetree/bindings/leds/leds-sc27xx-bltc.txt
@@ -14,7 +14,9 @@
- reg: Port this LED is connected to.
Optional child properties:
-- label: See Documentation/devicetree/bindings/leds/common.txt.
+- function: See Documentation/devicetree/bindings/leds/common.txt.
+- color: See Documentation/devicetree/bindings/leds/common.txt.
+- label: See Documentation/devicetree/bindings/leds/common.txt (deprecated).
Examples:
@@ -25,17 +27,17 @@
reg = <0x200>;
led@0 {
- label = "red";
+ color = <LED_COLOR_ID_RED>;
reg = <0x0>;
};
led@1 {
- label = "green";
+ color = <LED_COLOR_ID_GREEN>;
reg = <0x1>;
};
led@2 {
- label = "blue";
+ color = <LED_COLOR_ID_BLUE>;
reg = <0x2>;
};
};
diff --git a/Documentation/leds/leds-class.rst b/Documentation/leds/leds-class.rst
index df0120a..a0708d3 100644
--- a/Documentation/leds/leds-class.rst
+++ b/Documentation/leds/leds-class.rst
@@ -43,9 +43,73 @@
Is currently of the form:
- "devicename:colour:function"
+ "devicename:color:function"
-There have been calls for LED properties such as colour to be exported as
+- devicename:
+ it should refer to a unique identifier created by the kernel,
+ like e.g. phyN for network devices or inputN for input devices, rather
+ than to the hardware; the information related to the product and the bus
+ to which given device is hooked is available in sysfs and can be
+ retrieved using get_led_device_info.sh script from tools/leds; generally
+ this section is expected mostly for LEDs that are somehow associated with
+ other devices.
+
+- color:
+ one of LED_COLOR_ID_* definitions from the header
+ include/dt-bindings/leds/common.h.
+
+- function:
+ one of LED_FUNCTION_* definitions from the header
+ include/dt-bindings/leds/common.h.
+
+If required color or function is missing, please submit a patch
+to linux-leds@vger.kernel.org.
+
+It is possible that more than one LED with the same color and function will
+be required for given platform, differing only with an ordinal number.
+In this case it is preferable to just concatenate the predefined LED_FUNCTION_*
+name with required "-N" suffix in the driver. fwnode based drivers can use
+function-enumerator property for that and then the concatenation will be handled
+automatically by the LED core upon LED class device registration.
+
+LED subsystem has also a protection against name clash, that may occur
+when LED class device is created by a driver of hot-pluggable device and
+it doesn't provide unique devicename section. In this case numerical
+suffix (e.g. "_1", "_2", "_3" etc.) is added to the requested LED class
+device name.
+
+There might be still LED class drivers around using vendor or product name
+for devicename, but this approach is now deprecated as it doesn't convey
+any added value. Product information can be found in other places in sysfs
+(see tools/leds/get_led_device_info.sh).
+
+Examples of proper LED names:
+
+ - "red:disk"
+ - "white:flash"
+ - "red:indicator"
+ - "phy1:green:wlan"
+ - "phy3::wlan"
+ - ":kbd_backlight"
+ - "input5::kbd_backlight"
+ - "input3::numlock"
+ - "input3::scrolllock"
+ - "input3::capslock"
+ - "mmc1::status"
+ - "white:status"
+
+get_led_device_info.sh script can be used for verifying if the LED name
+meets the requirements pointed out here. It performs validation of the LED class
+devicename sections and gives hints on expected value for a section in case
+the validation fails for it. So far the script supports validation
+of associations between LEDs and following types of devices:
+
+ - input devices
+ - ieee80211 compliant USB devices
+
+The script is open to extensions.
+
+There have been calls for LED properties such as color to be exported as
individual led class attributes. As a solution which doesn't incur as much
overhead, I suggest these become part of the device name. The naming scheme
above leaves scope for further attributes should they be needed. If sections
diff --git a/drivers/amba/tegra-ahb.c b/drivers/amba/tegra-ahb.c
index aa64eec..57d3b2e 100644
--- a/drivers/amba/tegra-ahb.c
+++ b/drivers/amba/tegra-ahb.c
@@ -134,22 +134,13 @@
}
#ifdef CONFIG_TEGRA_IOMMU_SMMU
-static int tegra_ahb_match_by_smmu(struct device *dev, const void *data)
-{
- struct tegra_ahb *ahb = dev_get_drvdata(dev);
- const struct device_node *dn = data;
-
- return (ahb->dev->of_node == dn) ? 1 : 0;
-}
-
int tegra_ahb_enable_smmu(struct device_node *dn)
{
struct device *dev;
u32 val;
struct tegra_ahb *ahb;
- dev = driver_find_device(&tegra_ahb_driver.driver, NULL, dn,
- tegra_ahb_match_by_smmu);
+ dev = driver_find_device_by_of_node(&tegra_ahb_driver.driver, dn);
if (!dev)
return -EPROBE_DEFER;
ahb = dev_get_drvdata(dev);
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index df3cac7..a1d1e82 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -342,30 +342,6 @@
}
EXPORT_SYMBOL_GPL(bus_find_device);
-static int match_name(struct device *dev, const void *data)
-{
- const char *name = data;
-
- return sysfs_streq(name, dev_name(dev));
-}
-
-/**
- * bus_find_device_by_name - device iterator for locating a particular device of a specific name
- * @bus: bus type
- * @start: Device to begin with
- * @name: name of the device to match
- *
- * This is similar to the bus_find_device() function above, but it handles
- * searching by a name automatically, no need to write another strcmp matching
- * function.
- */
-struct device *bus_find_device_by_name(struct bus_type *bus,
- struct device *start, const char *name)
-{
- return bus_find_device(bus, start, (void *)name, match_name);
-}
-EXPORT_SYMBOL_GPL(bus_find_device_by_name);
-
/**
* subsys_find_device_by_id - find a device with a specific enumeration number
* @subsys: subsystem
diff --git a/drivers/base/core.c b/drivers/base/core.c
index f0dd8e3..832d4ea 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -2944,13 +2944,6 @@
}
EXPORT_SYMBOL_GPL(device_create_with_groups);
-static int __match_devt(struct device *dev, const void *data)
-{
- const dev_t *devt = data;
-
- return dev->devt == *devt;
-}
-
/**
* device_destroy - removes a device that was created with device_create()
* @class: pointer to the struct class that this device was registered with
@@ -2963,7 +2956,7 @@
{
struct device *dev;
- dev = class_find_device(class, NULL, &devt, __match_devt);
+ dev = class_find_device_by_devt(class, devt);
if (dev) {
put_device(dev);
device_unregister(dev);
@@ -3434,8 +3427,38 @@
}
EXPORT_SYMBOL_GPL(device_set_of_node_from_dev);
+int device_match_name(struct device *dev, const void *name)
+{
+ return sysfs_streq(dev_name(dev), name);
+}
+EXPORT_SYMBOL_GPL(device_match_name);
+
int device_match_of_node(struct device *dev, const void *np)
{
return dev->of_node == np;
}
EXPORT_SYMBOL_GPL(device_match_of_node);
+
+int device_match_fwnode(struct device *dev, const void *fwnode)
+{
+ return dev_fwnode(dev) == fwnode;
+}
+EXPORT_SYMBOL_GPL(device_match_fwnode);
+
+int device_match_devt(struct device *dev, const void *pdevt)
+{
+ return dev->devt == *(dev_t *)pdevt;
+}
+EXPORT_SYMBOL_GPL(device_match_devt);
+
+int device_match_acpi_dev(struct device *dev, const void *adev)
+{
+ return ACPI_COMPANION(dev) == adev;
+}
+EXPORT_SYMBOL(device_match_acpi_dev);
+
+int device_match_any(struct device *dev, const void *unused)
+{
+ return 1;
+}
+EXPORT_SYMBOL_GPL(device_match_any);
diff --git a/drivers/base/devcon.c b/drivers/base/devcon.c
index 09f2847..1d488dc 100644
--- a/drivers/base/devcon.c
+++ b/drivers/base/devcon.c
@@ -133,19 +133,13 @@
NULL,
};
-static int device_fwnode_match(struct device *dev, const void *fwnode)
-{
- return dev_fwnode(dev) == fwnode;
-}
-
static void *device_connection_fwnode_match(struct device_connection *con)
{
struct bus_type *bus;
struct device *dev;
for (bus = generic_match_buses[0]; bus; bus++) {
- dev = bus_find_device(bus, NULL, (void *)con->fwnode,
- device_fwnode_match);
+ dev = bus_find_device_by_fwnode(bus, con->fwnode);
if (dev && !strncmp(dev_name(dev), con->id, strlen(con->id)))
return dev;
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index ec974ba..eb01837 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -1202,6 +1202,20 @@
};
EXPORT_SYMBOL_GPL(platform_bus_type);
+/**
+ * platform_find_device_by_driver - Find a platform device with a given
+ * driver.
+ * @start: The device to start the search from.
+ * @drv: The device driver to look for.
+ */
+struct device *platform_find_device_by_driver(struct device *start,
+ const struct device_driver *drv)
+{
+ return bus_find_device(&platform_bus_type, start, drv,
+ (void *)platform_match);
+}
+EXPORT_SYMBOL_GPL(platform_find_device_by_driver);
+
int __init platform_bus_init(void)
{
int error;
diff --git a/drivers/fpga/fpga-bridge.c b/drivers/fpga/fpga-bridge.c
index 80bd8f1..4bab902 100644
--- a/drivers/fpga/fpga-bridge.c
+++ b/drivers/fpga/fpga-bridge.c
@@ -19,11 +19,6 @@
/* Lock for adding/removing bridges to linked lists*/
static spinlock_t bridge_list_lock;
-static int fpga_bridge_of_node_match(struct device *dev, const void *data)
-{
- return dev->of_node == data;
-}
-
/**
* fpga_bridge_enable - Enable transactions on the bridge
*
@@ -104,8 +99,7 @@
{
struct device *dev;
- dev = class_find_device(fpga_bridge_class, NULL, np,
- fpga_bridge_of_node_match);
+ dev = class_find_device_by_of_node(fpga_bridge_class, np);
if (!dev)
return ERR_PTR(-ENODEV);
diff --git a/drivers/fpga/fpga-mgr.c b/drivers/fpga/fpga-mgr.c
index c386681..e05104f 100644
--- a/drivers/fpga/fpga-mgr.c
+++ b/drivers/fpga/fpga-mgr.c
@@ -482,11 +482,6 @@
}
EXPORT_SYMBOL_GPL(fpga_mgr_get);
-static int fpga_mgr_of_node_match(struct device *dev, const void *data)
-{
- return dev->of_node == data;
-}
-
/**
* of_fpga_mgr_get - Given a device node, get a reference to a fpga mgr.
*
@@ -498,8 +493,7 @@
{
struct device *dev;
- dev = class_find_device(fpga_mgr_class, NULL, node,
- fpga_mgr_of_node_match);
+ dev = class_find_device_by_of_node(fpga_mgr_class, node);
if (!dev)
return ERR_PTR(-ENODEV);
diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index ad19df0..bd2498b 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -93,11 +93,6 @@
.pm = &mipi_dsi_device_pm_ops,
};
-static int of_device_match(struct device *dev, const void *data)
-{
- return dev->of_node == data;
-}
-
/**
* of_find_mipi_dsi_device_by_node() - find the MIPI DSI device matching a
* device tree node
@@ -110,7 +105,7 @@
{
struct device *dev;
- dev = bus_find_device(&mipi_dsi_bus_type, NULL, np, of_device_match);
+ dev = bus_find_device_by_of_node(&mipi_dsi_bus_type, np);
return dev ? to_mipi_dsi_device(dev) : NULL;
}
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 58baf49..badab94 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -242,9 +242,7 @@
if (!info->driver || !(info->flags & DRM_COMPONENT_DRIVER))
continue;
- while ((d = bus_find_device(&platform_bus_type, p,
- &info->driver->driver,
- (void *)platform_bus_type.match))) {
+ while ((d = platform_find_device_by_driver(p, &info->driver->driver))) {
put_device(p);
if (!(info->flags & DRM_FIMC_DEVICE) ||
@@ -412,9 +410,8 @@
if (!info->driver || !(info->flags & DRM_VIRTUAL_DEVICE))
continue;
- while ((dev = bus_find_device(&platform_bus_type, NULL,
- &info->driver->driver,
- (void *)platform_bus_type.match))) {
+ while ((dev = platform_find_device_by_driver(NULL,
+ &info->driver->driver))) {
put_device(dev);
platform_device_unregister(to_platform_device(dev));
}
diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c
index baf63fb..c07abf9 100644
--- a/drivers/gpu/drm/mcde/mcde_drv.c
+++ b/drivers/gpu/drm/mcde/mcde_drv.c
@@ -477,8 +477,7 @@
struct device_driver *drv = &mcde_component_drivers[i]->driver;
struct device *p = NULL, *d;
- while ((d = bus_find_device(&platform_bus_type, p, drv,
- (void *)platform_bus_type.match))) {
+ while ((d = platform_find_device_by_driver(p, drv))) {
put_device(p);
component_match_add(dev, &match, mcde_compare_dev, d);
p = d;
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index 53d2c5b..38dc263 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -330,8 +330,7 @@
struct device *p = NULL, *d;
do {
- d = bus_find_device(&platform_bus_type, p, &drv->driver,
- (void *)platform_bus_type.match);
+ d = platform_find_device_by_driver(p, &drv->driver);
put_device(p);
p = d;
diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index bf11930..1551c82 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -237,8 +237,7 @@
struct device_driver *drv = &drivers[i]->driver;
struct device *p = NULL, *d;
- while ((d = bus_find_device(&platform_bus_type, p, drv,
- (void *)platform_bus_type.match))) {
+ while ((d = platform_find_device_by_driver(p, drv))) {
put_device(p);
component_match_add(dev, match, compare_dev, d);
p = d;
diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c
index dad7d96..3c5bee4 100644
--- a/drivers/hwtracing/coresight/coresight-platform.c
+++ b/drivers/hwtracing/coresight/coresight-platform.c
@@ -37,11 +37,6 @@
return 0;
}
-int coresight_device_fwnode_match(struct device *dev, const void *fwnode)
-{
- return dev_fwnode(dev) == fwnode;
-}
-
static struct device *
coresight_find_device_by_fwnode(struct fwnode_handle *fwnode)
{
@@ -51,8 +46,7 @@
* If we have a non-configurable replicator, it will be found on the
* platform bus.
*/
- dev = bus_find_device(&platform_bus_type, NULL,
- fwnode, coresight_device_fwnode_match);
+ dev = bus_find_device_by_fwnode(&platform_bus_type, fwnode);
if (dev)
return dev;
@@ -60,8 +54,7 @@
* We have a configurable component - circle through the AMBA bus
* looking for the device that matches the endpoint node.
*/
- return bus_find_device(&amba_bustype, NULL,
- fwnode, coresight_device_fwnode_match);
+ return bus_find_device_by_fwnode(&amba_bustype, fwnode);
}
#ifdef CONFIG_OF
diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h
index 7d40179..61d7f9f 100644
--- a/drivers/hwtracing/coresight/coresight-priv.h
+++ b/drivers/hwtracing/coresight/coresight-priv.h
@@ -202,6 +202,4 @@
void coresight_release_platform_data(struct coresight_platform_data *pdata);
-int coresight_device_fwnode_match(struct device *dev, const void *fwnode);
-
#endif
diff --git a/drivers/hwtracing/coresight/coresight.c b/drivers/hwtracing/coresight/coresight.c
index 55db77f641..6453c67 100644
--- a/drivers/hwtracing/coresight/coresight.c
+++ b/drivers/hwtracing/coresight/coresight.c
@@ -1046,9 +1046,7 @@
struct coresight_connection *conn = &csdev->pdata->conns[i];
struct device *dev = NULL;
- dev = bus_find_device(&coresight_bustype, NULL,
- (void *)conn->child_fwnode,
- coresight_device_fwnode_match);
+ dev = bus_find_device_by_fwnode(&coresight_bustype, conn->child_fwnode);
if (dev) {
conn->child_dev = to_coresight_device(dev);
/* and put reference from 'bus_find_device()' */
diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c
index 5592289..d5c1821 100644
--- a/drivers/hwtracing/intel_th/core.c
+++ b/drivers/hwtracing/intel_th/core.c
@@ -789,12 +789,6 @@
return 0;
}
-static int match_devt(struct device *dev, const void *data)
-{
- dev_t devt = (dev_t)(unsigned long)(void *)data;
- return dev->devt == devt;
-}
-
static int intel_th_output_open(struct inode *inode, struct file *file)
{
const struct file_operations *fops;
@@ -802,9 +796,7 @@
struct device *dev;
int err;
- dev = bus_find_device(&intel_th_bus, NULL,
- (void *)(unsigned long)inode->i_rdev,
- match_devt);
+ dev = bus_find_device_by_devt(&intel_th_bus, inode->i_rdev);
if (!dev || !dev->driver)
return -ENODEV;
diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c
index 181e7ff..603b83a 100644
--- a/drivers/hwtracing/stm/core.c
+++ b/drivers/hwtracing/stm/core.c
@@ -89,13 +89,6 @@
.dev_groups = stm_groups,
};
-static int stm_dev_match(struct device *dev, const void *data)
-{
- const char *name = data;
-
- return sysfs_streq(name, dev_name(dev));
-}
-
/**
* stm_find_device() - find stm device by name
* @buf: character buffer containing the name
@@ -116,7 +109,7 @@
if (!stm_core_up)
return NULL;
- dev = class_find_device(&stm_class, NULL, buf, stm_dev_match);
+ dev = class_find_device_by_name(&stm_class, buf);
if (!dev)
return NULL;
diff --git a/drivers/i2c/busses/i2c-amd-mp2-pci.c b/drivers/i2c/busses/i2c-amd-mp2-pci.c
index c7fe3b4..5e4800d 100644
--- a/drivers/i2c/busses/i2c-amd-mp2-pci.c
+++ b/drivers/i2c/busses/i2c-amd-mp2-pci.c
@@ -457,18 +457,12 @@
};
module_pci_driver(amd_mp2_pci_driver);
-static int amd_mp2_device_match(struct device *dev, const void *data)
-{
- return 1;
-}
-
struct amd_mp2_dev *amd_mp2_find_device(void)
{
struct device *dev;
struct pci_dev *pci_dev;
- dev = driver_find_device(&amd_mp2_pci_driver.driver, NULL, NULL,
- amd_mp2_device_match);
+ dev = driver_find_next_device(&amd_mp2_pci_driver.driver, NULL);
if (!dev)
return NULL;
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index 4dbbc9a..bb6b39f 100644
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -344,27 +344,10 @@
}
EXPORT_SYMBOL_GPL(i2c_acpi_find_bus_speed);
-static int i2c_acpi_find_match_adapter(struct device *dev, const void *data)
-{
- struct i2c_adapter *adapter = i2c_verify_adapter(dev);
-
- if (!adapter)
- return 0;
-
- return ACPI_HANDLE(dev) == (acpi_handle)data;
-}
-
-static int i2c_acpi_find_match_device(struct device *dev, const void *data)
-{
- return ACPI_COMPANION(dev) == data;
-}
-
struct i2c_adapter *i2c_acpi_find_adapter_by_handle(acpi_handle handle)
{
- struct device *dev;
+ struct device *dev = bus_find_device_by_acpi_dev(&i2c_bus_type, handle);
- dev = bus_find_device(&i2c_bus_type, NULL, handle,
- i2c_acpi_find_match_adapter);
return dev ? i2c_verify_adapter(dev) : NULL;
}
EXPORT_SYMBOL_GPL(i2c_acpi_find_adapter_by_handle);
@@ -373,8 +356,7 @@
{
struct device *dev;
- dev = bus_find_device(&i2c_bus_type, NULL, adev,
- i2c_acpi_find_match_device);
+ dev = bus_find_device_by_acpi_dev(&i2c_bus_type, adev);
return dev ? i2c_verify_client(dev) : NULL;
}
diff --git a/drivers/i2c/i2c-core-of.c b/drivers/i2c/i2c-core-of.c
index d1c48de..6f632d54 100644
--- a/drivers/i2c/i2c-core-of.c
+++ b/drivers/i2c/i2c-core-of.c
@@ -113,11 +113,6 @@
of_node_put(bus);
}
-static int of_dev_node_match(struct device *dev, const void *data)
-{
- return dev->of_node == data;
-}
-
static int of_dev_or_parent_node_match(struct device *dev, const void *data)
{
if (dev->of_node == data)
@@ -135,7 +130,7 @@
struct device *dev;
struct i2c_client *client;
- dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match);
+ dev = bus_find_device_by_of_node(&i2c_bus_type, node);
if (!dev)
return NULL;
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
index c07e387..141205e 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
@@ -4501,19 +4501,13 @@
};
MODULE_DEVICE_TABLE(acpi, hns_roce_acpi_match);
-static int hns_roce_node_match(struct device *dev, const void *fwnode)
-{
- return dev->fwnode == fwnode;
-}
-
static struct
platform_device *hns_roce_find_pdev(struct fwnode_handle *fwnode)
{
struct device *dev;
/* get the 'device' corresponding to the matching 'fwnode' */
- dev = bus_find_device(&platform_bus_type, NULL,
- fwnode, hns_roce_node_match);
+ dev = bus_find_device_by_fwnode(&platform_bus_type, fwnode);
/* get the platform device */
return dev ? to_platform_device(dev) : NULL;
}
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index 4aa4148..8da93e7 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -2503,16 +2503,11 @@
static struct platform_driver arm_smmu_driver;
-static int arm_smmu_match_node(struct device *dev, const void *data)
-{
- return dev->fwnode == data;
-}
-
static
struct arm_smmu_device *arm_smmu_get_by_fwnode(struct fwnode_handle *fwnode)
{
- struct device *dev = driver_find_device(&arm_smmu_driver.driver, NULL,
- fwnode, arm_smmu_match_node);
+ struct device *dev = driver_find_device_by_fwnode(&arm_smmu_driver.driver,
+ fwnode);
put_device(dev);
return dev ? dev_get_drvdata(dev) : NULL;
}
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 5b93c79..c3ef0cc 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1299,16 +1299,11 @@
}
}
-static int arm_smmu_match_node(struct device *dev, const void *data)
-{
- return dev->fwnode == data;
-}
-
static
struct arm_smmu_device *arm_smmu_get_by_fwnode(struct fwnode_handle *fwnode)
{
- struct device *dev = driver_find_device(&arm_smmu_driver.driver, NULL,
- fwnode, arm_smmu_match_node);
+ struct device *dev = driver_find_device_by_fwnode(&arm_smmu_driver.driver,
+ fwnode);
put_device(dev);
return dev ? dev_get_drvdata(dev) : NULL;
}
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index b0fdeef..1988de1 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -74,9 +74,12 @@
depends on LEDS_CLASS
depends on X86 && DMI
help
- This driver makes the PC Engines APU/APU2/APU3 front panel LEDs
+ This driver makes the PC Engines APU1 front panel LEDs
accessible from userspace programs through the LED subsystem.
+ If you're looking for APU2/3, use the pcengines-apu2 driver.
+ (symbol CONFIG_PCENGINES_APU2)
+
To compile this driver as a module, choose M here: the
module will be called leds-apu.
@@ -587,6 +590,7 @@
tristate "LED support for Big Network series LEDs"
depends on LEDS_CLASS
depends on MACH_KIRKWOOD
+ depends on OF_GPIO
default y
help
This option enables support for LEDs found on the LaCie 2Big
diff --git a/drivers/leds/led-class-flash.c b/drivers/leds/led-class-flash.c
index 94980c6..60c3de5 100644
--- a/drivers/leds/led-class-flash.c
+++ b/drivers/leds/led-class-flash.c
@@ -282,8 +282,9 @@
led_cdev->groups = flash_groups;
}
-int led_classdev_flash_register(struct device *parent,
- struct led_classdev_flash *fled_cdev)
+int led_classdev_flash_register_ext(struct device *parent,
+ struct led_classdev_flash *fled_cdev,
+ struct led_init_data *init_data)
{
struct led_classdev *led_cdev;
const struct led_flash_ops *ops;
@@ -309,13 +310,13 @@
}
/* Register led class device */
- ret = led_classdev_register(parent, led_cdev);
+ ret = led_classdev_register_ext(parent, led_cdev, init_data);
if (ret < 0)
return ret;
return 0;
}
-EXPORT_SYMBOL_GPL(led_classdev_flash_register);
+EXPORT_SYMBOL_GPL(led_classdev_flash_register_ext);
void led_classdev_flash_unregister(struct led_classdev_flash *fled_cdev)
{
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index 4793e77..647b126 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -14,6 +14,7 @@
#include <linux/leds.h>
#include <linux/list.h>
#include <linux/module.h>
+#include <linux/property.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
@@ -213,13 +214,6 @@
static SIMPLE_DEV_PM_OPS(leds_class_dev_pm_ops, led_suspend, led_resume);
-static int match_name(struct device *dev, const void *data)
-{
- if (!dev_name(dev))
- return 0;
- return !strcmp(dev_name(dev), (char *)data);
-}
-
static int led_classdev_next_name(const char *init_name, char *name,
size_t len)
{
@@ -230,7 +224,7 @@
strlcpy(name, init_name, len);
while ((ret < len) &&
- (dev = class_find_device(leds_class, NULL, name, match_name))) {
+ (dev = class_find_device_by_name(leds_class, name))) {
put_device(dev);
ret = snprintf(name, len, "%s_%u", init_name, ++i);
}
@@ -242,31 +236,48 @@
}
/**
- * of_led_classdev_register - register a new object of led_classdev class.
+ * led_classdev_register_ext - register a new object of led_classdev class
+ * with init data.
*
* @parent: parent of LED device
* @led_cdev: the led_classdev structure for this device.
- * @np: DT node describing this LED
+ * @init_data: LED class device initialization data
*/
-int of_led_classdev_register(struct device *parent, struct device_node *np,
- struct led_classdev *led_cdev)
+int led_classdev_register_ext(struct device *parent,
+ struct led_classdev *led_cdev,
+ struct led_init_data *init_data)
{
- char name[LED_MAX_NAME_SIZE];
+ char composed_name[LED_MAX_NAME_SIZE];
+ char final_name[LED_MAX_NAME_SIZE];
+ const char *proposed_name = composed_name;
int ret;
- ret = led_classdev_next_name(led_cdev->name, name, sizeof(name));
+ if (init_data) {
+ if (init_data->devname_mandatory && !init_data->devicename) {
+ dev_err(parent, "Mandatory device name is missing");
+ return -EINVAL;
+ }
+ ret = led_compose_name(parent, init_data, composed_name);
+ if (ret < 0)
+ return ret;
+ } else {
+ proposed_name = led_cdev->name;
+ }
+
+ ret = led_classdev_next_name(proposed_name, final_name, sizeof(final_name));
if (ret < 0)
return ret;
mutex_init(&led_cdev->led_access);
mutex_lock(&led_cdev->led_access);
led_cdev->dev = device_create_with_groups(leds_class, parent, 0,
- led_cdev, led_cdev->groups, "%s", name);
+ led_cdev, led_cdev->groups, "%s", final_name);
if (IS_ERR(led_cdev->dev)) {
mutex_unlock(&led_cdev->led_access);
return PTR_ERR(led_cdev->dev);
}
- led_cdev->dev->of_node = np;
+ if (init_data && init_data->fwnode)
+ led_cdev->dev->fwnode = init_data->fwnode;
if (ret)
dev_warn(parent, "Led %s renamed to %s due to name collision",
@@ -276,6 +287,7 @@
ret = led_add_brightness_hw_changed(led_cdev);
if (ret) {
device_unregister(led_cdev->dev);
+ led_cdev->dev = NULL;
mutex_unlock(&led_cdev->led_access);
return ret;
}
@@ -311,7 +323,7 @@
return 0;
}
-EXPORT_SYMBOL_GPL(of_led_classdev_register);
+EXPORT_SYMBOL_GPL(led_classdev_register_ext);
/**
* led_classdev_unregister - unregisters a object of led_properties class.
@@ -321,6 +333,9 @@
*/
void led_classdev_unregister(struct led_classdev *led_cdev)
{
+ if (IS_ERR_OR_NULL(led_cdev->dev))
+ return;
+
#ifdef CONFIG_LEDS_TRIGGERS
down_write(&led_cdev->trigger_lock);
if (led_cdev->trigger)
@@ -356,14 +371,15 @@
}
/**
- * devm_of_led_classdev_register - resource managed led_classdev_register()
+ * devm_led_classdev_register_ext - resource managed led_classdev_register_ext()
*
* @parent: parent of LED device
* @led_cdev: the led_classdev structure for this device.
+ * @init_data: LED class device initialization data
*/
-int devm_of_led_classdev_register(struct device *parent,
- struct device_node *np,
- struct led_classdev *led_cdev)
+int devm_led_classdev_register_ext(struct device *parent,
+ struct led_classdev *led_cdev,
+ struct led_init_data *init_data)
{
struct led_classdev **dr;
int rc;
@@ -372,7 +388,7 @@
if (!dr)
return -ENOMEM;
- rc = of_led_classdev_register(parent, np, led_cdev);
+ rc = led_classdev_register_ext(parent, led_cdev, init_data);
if (rc) {
devres_free(dr);
return rc;
@@ -383,7 +399,7 @@
return 0;
}
-EXPORT_SYMBOL_GPL(devm_of_led_classdev_register);
+EXPORT_SYMBOL_GPL(devm_led_classdev_register_ext);
static int devm_led_classdev_match(struct device *dev, void *res, void *data)
{
diff --git a/drivers/leds/led-core.c b/drivers/leds/led-core.c
index 7107cd7..f1f718d 100644
--- a/drivers/leds/led-core.c
+++ b/drivers/leds/led-core.c
@@ -13,8 +13,10 @@
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/of.h>
+#include <linux/property.h>
#include <linux/rwsem.h>
#include <linux/slab.h>
+#include <uapi/linux/uleds.h>
#include "leds.h"
DECLARE_RWSEM(leds_list_lock);
@@ -23,6 +25,18 @@
LIST_HEAD(leds_list);
EXPORT_SYMBOL_GPL(leds_list);
+const char * const led_colors[LED_COLOR_ID_MAX] = {
+ [LED_COLOR_ID_WHITE] = "white",
+ [LED_COLOR_ID_RED] = "red",
+ [LED_COLOR_ID_GREEN] = "green",
+ [LED_COLOR_ID_BLUE] = "blue",
+ [LED_COLOR_ID_AMBER] = "amber",
+ [LED_COLOR_ID_VIOLET] = "violet",
+ [LED_COLOR_ID_YELLOW] = "yellow",
+ [LED_COLOR_ID_IR] = "ir",
+};
+EXPORT_SYMBOL_GPL(led_colors);
+
static int __led_set_brightness(struct led_classdev *led_cdev,
enum led_brightness value)
{
@@ -310,14 +324,11 @@
u32 *led_get_default_pattern(struct led_classdev *led_cdev, unsigned int *size)
{
- struct device_node *np = dev_of_node(led_cdev->dev);
+ struct fwnode_handle *fwnode = led_cdev->dev->fwnode;
u32 *pattern;
int count;
- if (!np)
- return NULL;
-
- count = of_property_count_u32_elems(np, "led-pattern");
+ count = fwnode_property_count_u32(fwnode, "led-pattern");
if (count < 0)
return NULL;
@@ -325,7 +336,7 @@
if (!pattern)
return NULL;
- if (of_property_read_u32_array(np, "led-pattern", pattern, count)) {
+ if (fwnode_property_read_u32_array(fwnode, "led-pattern", pattern, count)) {
kfree(pattern);
return NULL;
}
@@ -353,3 +364,116 @@
led_cdev->flags &= ~LED_SYSFS_DISABLE;
}
EXPORT_SYMBOL_GPL(led_sysfs_enable);
+
+static void led_parse_fwnode_props(struct device *dev,
+ struct fwnode_handle *fwnode,
+ struct led_properties *props)
+{
+ int ret;
+
+ if (!fwnode)
+ return;
+
+ if (fwnode_property_present(fwnode, "label")) {
+ ret = fwnode_property_read_string(fwnode, "label", &props->label);
+ if (ret)
+ dev_err(dev, "Error parsing 'label' property (%d)\n", ret);
+ return;
+ }
+
+ if (fwnode_property_present(fwnode, "color")) {
+ ret = fwnode_property_read_u32(fwnode, "color", &props->color);
+ if (ret)
+ dev_err(dev, "Error parsing 'color' property (%d)\n", ret);
+ else if (props->color >= LED_COLOR_ID_MAX)
+ dev_err(dev, "LED color identifier out of range\n");
+ else
+ props->color_present = true;
+ }
+
+
+ if (!fwnode_property_present(fwnode, "function"))
+ return;
+
+ ret = fwnode_property_read_string(fwnode, "function", &props->function);
+ if (ret) {
+ dev_err(dev,
+ "Error parsing 'function' property (%d)\n",
+ ret);
+ }
+
+ if (!fwnode_property_present(fwnode, "function-enumerator"))
+ return;
+
+ ret = fwnode_property_read_u32(fwnode, "function-enumerator",
+ &props->func_enum);
+ if (ret) {
+ dev_err(dev,
+ "Error parsing 'function-enumerator' property (%d)\n",
+ ret);
+ } else {
+ props->func_enum_present = true;
+ }
+}
+
+int led_compose_name(struct device *dev, struct led_init_data *init_data,
+ char *led_classdev_name)
+{
+ struct led_properties props = {};
+ struct fwnode_handle *fwnode = init_data->fwnode;
+ const char *devicename = init_data->devicename;
+
+ if (!led_classdev_name)
+ return -EINVAL;
+
+ led_parse_fwnode_props(dev, fwnode, &props);
+
+ if (props.label) {
+ /*
+ * If init_data.devicename is NULL, then it indicates that
+ * DT label should be used as-is for LED class device name.
+ * Otherwise the label is prepended with devicename to compose
+ * the final LED class device name.
+ */
+ if (!devicename) {
+ strscpy(led_classdev_name, props.label,
+ LED_MAX_NAME_SIZE);
+ } else {
+ snprintf(led_classdev_name, LED_MAX_NAME_SIZE, "%s:%s",
+ devicename, props.label);
+ }
+ } else if (props.function || props.color_present) {
+ char tmp_buf[LED_MAX_NAME_SIZE];
+
+ if (props.func_enum_present) {
+ snprintf(tmp_buf, LED_MAX_NAME_SIZE, "%s:%s-%d",
+ props.color_present ? led_colors[props.color] : "",
+ props.function ?: "", props.func_enum);
+ } else {
+ snprintf(tmp_buf, LED_MAX_NAME_SIZE, "%s:%s",
+ props.color_present ? led_colors[props.color] : "",
+ props.function ?: "");
+ }
+ if (init_data->devname_mandatory) {
+ snprintf(led_classdev_name, LED_MAX_NAME_SIZE, "%s:%s",
+ devicename, tmp_buf);
+ } else {
+ strscpy(led_classdev_name, tmp_buf, LED_MAX_NAME_SIZE);
+
+ }
+ } else if (init_data->default_label) {
+ if (!devicename) {
+ dev_err(dev, "Legacy LED naming requires devicename segment");
+ return -EINVAL;
+ }
+ snprintf(led_classdev_name, LED_MAX_NAME_SIZE, "%s:%s",
+ devicename, init_data->default_label);
+ } else if (is_of_node(fwnode)) {
+ strscpy(led_classdev_name, to_of_node(fwnode)->name,
+ LED_MAX_NAME_SIZE);
+ } else
+ return -EINVAL;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(led_compose_name);
diff --git a/drivers/leds/led-triggers.c b/drivers/leds/led-triggers.c
index 8d11a5e..23963e5c 100644
--- a/drivers/leds/led-triggers.c
+++ b/drivers/leds/led-triggers.c
@@ -167,12 +167,13 @@
trig->deactivate(led_cdev);
err_activate:
- led_cdev->trigger = NULL;
- led_cdev->trigger_data = NULL;
write_lock_irqsave(&led_cdev->trigger->leddev_list_lock, flags);
list_del(&led_cdev->trig_list);
write_unlock_irqrestore(&led_cdev->trigger->leddev_list_lock, flags);
+ led_cdev->trigger = NULL;
+ led_cdev->trigger_data = NULL;
led_set_brightness(led_cdev, LED_OFF);
+ kfree(event);
return ret;
}
diff --git a/drivers/leds/leds-aat1290.c b/drivers/leds/leds-aat1290.c
index bf26f5b..5a0fe7b 100644
--- a/drivers/leds/leds-aat1290.c
+++ b/drivers/leds/leds-aat1290.c
@@ -42,6 +42,8 @@
#define AAT1290_FLASH_TM_NUM_LEVELS 16
#define AAT1290_MM_CURRENT_SCALE_SIZE 15
+#define AAT1290_NAME "aat1290"
+
struct aat1290_led_config_data {
/* maximum LED current in movie mode */
@@ -75,7 +77,6 @@
int *mm_current_scale;
/* device mode */
bool movie_mode;
-
/* brightness cache */
unsigned int torch_brightness;
};
@@ -215,7 +216,6 @@
struct aat1290_led_config_data *cfg,
struct device_node **sub_node)
{
- struct led_classdev *led_cdev = &led->fled_cdev.led_cdev;
struct device *dev = &led->pdev->dev;
struct device_node *child_node;
#if IS_ENABLED(CONFIG_V4L2_FLASH_LED_CLASS)
@@ -254,9 +254,6 @@
return -EINVAL;
}
- led_cdev->name = of_get_property(child_node, "label", NULL) ? :
- child_node->name;
-
ret = of_property_read_u32(child_node, "led-max-microamp",
&cfg->max_mm_current);
/*
@@ -428,7 +425,7 @@
struct led_classdev *led_cdev = &led->fled_cdev.led_cdev;
struct led_flash_setting *s;
- strlcpy(v4l2_sd_cfg->dev_name, led_cdev->name,
+ strlcpy(v4l2_sd_cfg->dev_name, led_cdev->dev->kobj.name,
sizeof(v4l2_sd_cfg->dev_name));
s = &v4l2_sd_cfg->intensity;
@@ -466,6 +463,7 @@
struct aat1290_led *led;
struct led_classdev *led_cdev;
struct led_classdev_flash *fled_cdev;
+ struct led_init_data init_data = {};
struct aat1290_led_config_data led_cfg = {};
struct v4l2_flash_config v4l2_sd_cfg = {};
int ret;
@@ -494,8 +492,12 @@
aat1290_init_flash_timeout(led, &led_cfg);
+ init_data.fwnode = of_fwnode_handle(sub_node);
+ init_data.devicename = AAT1290_NAME;
+
/* Register LED Flash class device */
- ret = led_classdev_flash_register(&pdev->dev, fled_cdev);
+ ret = led_classdev_flash_register_ext(&pdev->dev, fled_cdev,
+ &init_data);
if (ret < 0)
goto err_flash_register;
diff --git a/drivers/leds/leds-an30259a.c b/drivers/leds/leds-an30259a.c
index 1c1f0c8..250dc9d 100644
--- a/drivers/leds/leds-an30259a.c
+++ b/drivers/leds/leds-an30259a.c
@@ -13,7 +13,6 @@
#include <linux/mutex.h>
#include <linux/of.h>
#include <linux/regmap.h>
-#include <uapi/linux/uleds.h>
#define AN30259A_MAX_LEDS 3
@@ -54,6 +53,8 @@
#define AN30259A_BLINK_MAX_TIME 7500 /* ms */
#define AN30259A_SLOPE_RESOLUTION 500 /* ms */
+#define AN30259A_NAME "an30259a"
+
#define STATE_OFF 0
#define STATE_KEEP 1
#define STATE_ON 2
@@ -62,11 +63,11 @@
struct an30259a_led {
struct an30259a *chip;
+ struct fwnode_handle *fwnode;
struct led_classdev cdev;
u32 num;
u32 default_state;
bool sloping;
- char label[LED_MAX_NAME_SIZE];
};
struct an30259a {
@@ -226,14 +227,7 @@
led->num = source;
led->chip = chip;
-
- if (of_property_read_string(child, "label", &str))
- snprintf(led->label, sizeof(led->label), "an30259a::");
- else
- snprintf(led->label, sizeof(led->label), "an30259a:%s",
- str);
-
- led->cdev.name = led->label;
+ led->fwnode = of_fwnode_handle(child);
if (!of_property_read_string(child, "default-state", &str)) {
if (!strcmp(str, "on"))
@@ -312,13 +306,20 @@
chip->regmap = devm_regmap_init_i2c(client, &an30259a_regmap_config);
for (i = 0; i < chip->num_leds; i++) {
+ struct led_init_data init_data = {};
+
an30259a_init_default_state(&chip->leds[i]);
chip->leds[i].cdev.brightness_set_blocking =
an30259a_brightness_set;
chip->leds[i].cdev.blink_set = an30259a_blink_set;
- err = devm_led_classdev_register(&client->dev,
- &chip->leds[i].cdev);
+ init_data.fwnode = chip->leds[i].fwnode;
+ init_data.devicename = AN30259A_NAME;
+ init_data.default_label = ":";
+
+ err = devm_led_classdev_register_ext(&client->dev,
+ &chip->leds[i].cdev,
+ &init_data);
if (err < 0)
goto exit;
}
@@ -353,7 +354,7 @@
static struct i2c_driver an30259a_driver = {
.driver = {
- .name = "leds-an32059a",
+ .name = "leds-an30259a",
.of_match_table = of_match_ptr(an30259a_match_table),
},
.probe_new = an30259a_probe,
@@ -364,5 +365,5 @@
module_i2c_driver(an30259a_driver);
MODULE_AUTHOR("Simon Shields <simon@lineageos.org>");
-MODULE_DESCRIPTION("AN32059A LED driver");
+MODULE_DESCRIPTION("AN30259A LED driver");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/leds/leds-apu.c b/drivers/leds/leds-apu.c
index 8d42e46..7fd557a 100644
--- a/drivers/leds/leds-apu.c
+++ b/drivers/leds/leds-apu.c
@@ -31,6 +31,8 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/dmi.h>
#include <linux/err.h>
#include <linux/init.h>
@@ -47,12 +49,6 @@
#define APU1_NUM_GPIO 3
#define APU1_IOSIZE sizeof(u8)
-#define APU2_FCH_ACPI_MMIO_BASE 0xFED80000
-#define APU2_FCH_GPIO_BASE (APU2_FCH_ACPI_MMIO_BASE + 0x1500)
-#define APU2_GPIO_BIT_WRITE 22
-#define APU2_APU2_NUM_GPIO 4
-#define APU2_IOSIZE sizeof(u32)
-
/* LED access parameters */
struct apu_param {
void __iomem *addr; /* for ioread/iowrite */
@@ -72,19 +68,9 @@
unsigned long offset; /* for devm_ioremap */
};
-/* Supported platform types */
-enum apu_led_platform_types {
- APU1_LED_PLATFORM,
- APU2_LED_PLATFORM,
-};
-
struct apu_led_pdata {
struct platform_device *pdev;
struct apu_led_priv *pled;
- const struct apu_led_profile *profile;
- enum apu_led_platform_types platform;
- int num_led_instances;
- int iosize; /* for devm_ioremap() */
spinlock_t lock;
};
@@ -96,19 +82,6 @@
{ "apu:green:3", LED_OFF, APU1_FCH_GPIO_BASE + 2 * APU1_IOSIZE },
};
-static const struct apu_led_profile apu2_led_profile[] = {
- { "apu2:green:1", LED_ON, APU2_FCH_GPIO_BASE + 68 * APU2_IOSIZE },
- { "apu2:green:2", LED_OFF, APU2_FCH_GPIO_BASE + 69 * APU2_IOSIZE },
- { "apu2:green:3", LED_OFF, APU2_FCH_GPIO_BASE + 70 * APU2_IOSIZE },
-};
-
-/* Same as apu2_led_profile, but with "3" in the LED names. */
-static const struct apu_led_profile apu3_led_profile[] = {
- { "apu3:green:1", LED_ON, APU2_FCH_GPIO_BASE + 68 * APU2_IOSIZE },
- { "apu3:green:2", LED_OFF, APU2_FCH_GPIO_BASE + 69 * APU2_IOSIZE },
- { "apu3:green:3", LED_OFF, APU2_FCH_GPIO_BASE + 70 * APU2_IOSIZE },
-};
-
static const struct dmi_system_id apu_led_dmi_table[] __initconst = {
{
.ident = "apu",
@@ -117,54 +90,6 @@
DMI_MATCH(DMI_PRODUCT_NAME, "APU")
}
},
- /* PC Engines APU2 with "Legacy" bios < 4.0.8 */
- {
- .ident = "apu2",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "PC Engines"),
- DMI_MATCH(DMI_BOARD_NAME, "APU2")
- }
- },
- /* PC Engines APU2 with "Legacy" bios >= 4.0.8 */
- {
- .ident = "apu2",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "PC Engines"),
- DMI_MATCH(DMI_BOARD_NAME, "apu2")
- }
- },
- /* PC Engines APU2 with "Mainline" bios */
- {
- .ident = "apu2",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "PC Engines"),
- DMI_MATCH(DMI_BOARD_NAME, "PC Engines apu2")
- }
- },
- /* PC Engines APU3 with "Legacy" bios < 4.0.8 */
- {
- .ident = "apu3",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "PC Engines"),
- DMI_MATCH(DMI_BOARD_NAME, "APU3")
- }
- },
- /* PC Engines APU3 with "Legacy" bios >= 4.0.8 */
- {
- .ident = "apu3",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "PC Engines"),
- DMI_MATCH(DMI_BOARD_NAME, "apu3")
- }
- },
- /* PC Engines APU2 with "Mainline" bios */
- {
- .ident = "apu3",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "PC Engines"),
- DMI_MATCH(DMI_BOARD_NAME, "PC Engines apu3")
- }
- },
{}
};
MODULE_DEVICE_TABLE(dmi, apu_led_dmi_table);
@@ -178,52 +103,30 @@
spin_unlock(&apu_led->lock);
}
-static void apu2_led_brightness_set(struct led_classdev *led, enum led_brightness value)
-{
- struct apu_led_priv *pled = cdev_to_priv(led);
- u32 value_new;
-
- spin_lock(&apu_led->lock);
-
- value_new = ioread32(pled->param.addr);
-
- if (value)
- value_new &= ~BIT(APU2_GPIO_BIT_WRITE);
- else
- value_new |= BIT(APU2_GPIO_BIT_WRITE);
-
- iowrite32(value_new, pled->param.addr);
-
- spin_unlock(&apu_led->lock);
-}
-
static int apu_led_config(struct device *dev, struct apu_led_pdata *apuld)
{
int i;
int err;
apu_led->pled = devm_kcalloc(dev,
- apu_led->num_led_instances, sizeof(struct apu_led_priv),
+ ARRAY_SIZE(apu1_led_profile), sizeof(struct apu_led_priv),
GFP_KERNEL);
if (!apu_led->pled)
return -ENOMEM;
- for (i = 0; i < apu_led->num_led_instances; i++) {
+ for (i = 0; i < ARRAY_SIZE(apu1_led_profile); i++) {
struct apu_led_priv *pled = &apu_led->pled[i];
struct led_classdev *led_cdev = &pled->cdev;
- led_cdev->name = apu_led->profile[i].name;
- led_cdev->brightness = apu_led->profile[i].brightness;
+ led_cdev->name = apu1_led_profile[i].name;
+ led_cdev->brightness = apu1_led_profile[i].brightness;
led_cdev->max_brightness = 1;
led_cdev->flags = LED_CORE_SUSPENDRESUME;
- if (apu_led->platform == APU1_LED_PLATFORM)
- led_cdev->brightness_set = apu1_led_brightness_set;
- else if (apu_led->platform == APU2_LED_PLATFORM)
- led_cdev->brightness_set = apu2_led_brightness_set;
+ led_cdev->brightness_set = apu1_led_brightness_set;
pled->param.addr = devm_ioremap(dev,
- apu_led->profile[i].offset, apu_led->iosize);
+ apu1_led_profile[i].offset, APU1_IOSIZE);
if (!pled->param.addr) {
err = -ENOMEM;
goto error;
@@ -233,7 +136,7 @@
if (err)
goto error;
- led_cdev->brightness_set(led_cdev, apu_led->profile[i].brightness);
+ apu1_led_brightness_set(led_cdev, apu1_led_profile[i].brightness);
}
return 0;
@@ -254,28 +157,6 @@
apu_led->pdev = pdev;
- if (dmi_match(DMI_PRODUCT_NAME, "APU")) {
- apu_led->profile = apu1_led_profile;
- apu_led->platform = APU1_LED_PLATFORM;
- apu_led->num_led_instances = ARRAY_SIZE(apu1_led_profile);
- apu_led->iosize = APU1_IOSIZE;
- } else if (dmi_match(DMI_BOARD_NAME, "APU2") ||
- dmi_match(DMI_BOARD_NAME, "apu2") ||
- dmi_match(DMI_BOARD_NAME, "PC Engines apu2")) {
- apu_led->profile = apu2_led_profile;
- apu_led->platform = APU2_LED_PLATFORM;
- apu_led->num_led_instances = ARRAY_SIZE(apu2_led_profile);
- apu_led->iosize = APU2_IOSIZE;
- } else if (dmi_match(DMI_BOARD_NAME, "APU3") ||
- dmi_match(DMI_BOARD_NAME, "apu3") ||
- dmi_match(DMI_BOARD_NAME, "PC Engines apu3")) {
- apu_led->profile = apu3_led_profile;
- /* Otherwise identical to APU2. */
- apu_led->platform = APU2_LED_PLATFORM;
- apu_led->num_led_instances = ARRAY_SIZE(apu3_led_profile);
- apu_led->iosize = APU2_IOSIZE;
- }
-
spin_lock_init(&apu_led->lock);
return apu_led_config(&pdev->dev, apu_led);
}
@@ -291,19 +172,9 @@
struct platform_device *pdev;
int err;
- if (!dmi_match(DMI_SYS_VENDOR, "PC Engines")) {
- pr_err("No PC Engines board detected\n");
- return -ENODEV;
- }
- if (!(dmi_match(DMI_PRODUCT_NAME, "APU") ||
- dmi_match(DMI_PRODUCT_NAME, "APU2") ||
- dmi_match(DMI_PRODUCT_NAME, "apu2") ||
- dmi_match(DMI_PRODUCT_NAME, "PC Engines apu2") ||
- dmi_match(DMI_PRODUCT_NAME, "APU3") ||
- dmi_match(DMI_PRODUCT_NAME, "apu3") ||
- dmi_match(DMI_PRODUCT_NAME, "PC Engines apu3"))) {
- pr_err("Unknown PC Engines board: %s\n",
- dmi_get_system_info(DMI_PRODUCT_NAME));
+ if (!(dmi_match(DMI_SYS_VENDOR, "PC Engines") &&
+ dmi_match(DMI_PRODUCT_NAME, "APU"))) {
+ pr_err("No PC Engines APUv1 board detected. For APUv2,3 support, enable CONFIG_PCENGINES_APU2\n");
return -ENODEV;
}
@@ -326,7 +197,7 @@
{
int i;
- for (i = 0; i < apu_led->num_led_instances; i++)
+ for (i = 0; i < ARRAY_SIZE(apu1_led_profile); i++)
led_classdev_unregister(&apu_led->pled[i].cdev);
platform_device_unregister(apu_led->pdev);
@@ -337,6 +208,6 @@
module_exit(apu_led_exit);
MODULE_AUTHOR("Alan Mizrahi");
-MODULE_DESCRIPTION("PC Engines APU family LED driver");
+MODULE_DESCRIPTION("PC Engines APU1 front LED driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:leds_apu");
diff --git a/drivers/leds/leds-as3645a.c b/drivers/leds/leds-as3645a.c
index 14ab6b0..b7e0ae1 100644
--- a/drivers/leds/leds-as3645a.c
+++ b/drivers/leds/leds-as3645a.c
@@ -124,11 +124,6 @@
u32 peak;
};
-struct as3645a_names {
- char flash[32];
- char indicator[32];
-};
-
struct as3645a {
struct i2c_client *client;
@@ -484,12 +479,10 @@
}
static int as3645a_parse_node(struct as3645a *flash,
- struct as3645a_names *names,
struct fwnode_handle *fwnode)
{
struct as3645a_config *cfg = &flash->cfg;
struct fwnode_handle *child;
- const char *name;
int rval;
fwnode_for_each_child_node(fwnode, child) {
@@ -517,17 +510,6 @@
return -ENODEV;
}
- rval = fwnode_property_read_string(flash->flash_node, "label", &name);
- if (!rval) {
- strlcpy(names->flash, name, sizeof(names->flash));
- } else if (is_of_node(fwnode)) {
- snprintf(names->flash, sizeof(names->flash),
- "%pOFn:flash", to_of_node(fwnode));
- } else {
- dev_err(&flash->client->dev, "flash node has no label!\n");
- return -EINVAL;
- }
-
rval = fwnode_property_read_u32(flash->flash_node, "flash-timeout-us",
&cfg->flash_timeout_us);
if (rval < 0) {
@@ -565,17 +547,6 @@
goto out_err;
}
- rval = fwnode_property_read_string(flash->indicator_node, "label",
- &name);
- if (!rval) {
- strlcpy(names->indicator, name, sizeof(names->indicator));
- } else if (is_of_node(fwnode)) {
- snprintf(names->indicator, sizeof(names->indicator),
- "%pOFn:indicator", to_of_node(fwnode));
- } else {
- dev_err(&flash->client->dev, "indicator node has no label!\n");
- return -EINVAL;
- }
rval = fwnode_property_read_u32(flash->indicator_node,
"led-max-microamp",
@@ -595,21 +566,25 @@
return rval;
}
-static int as3645a_led_class_setup(struct as3645a *flash,
- struct as3645a_names *names)
+static int as3645a_led_class_setup(struct as3645a *flash)
{
struct led_classdev *fled_cdev = &flash->fled.led_cdev;
struct led_classdev *iled_cdev = &flash->iled_cdev;
+ struct led_init_data init_data = {};
struct led_flash_setting *cfg;
int rval;
- iled_cdev->name = names->indicator;
iled_cdev->brightness_set_blocking = as3645a_set_indicator_brightness;
iled_cdev->max_brightness =
flash->cfg.indicator_max_ua / AS_INDICATOR_INTENSITY_STEP;
iled_cdev->flags = LED_CORE_SUSPENDRESUME;
- rval = led_classdev_register(&flash->client->dev, iled_cdev);
+ init_data.fwnode = flash->indicator_node;
+ init_data.devicename = AS_NAME;
+ init_data.default_label = "indicator";
+
+ rval = led_classdev_register_ext(&flash->client->dev, iled_cdev,
+ &init_data);
if (rval < 0)
return rval;
@@ -627,7 +602,6 @@
flash->fled.ops = &as3645a_led_flash_ops;
- fled_cdev->name = names->flash;
fled_cdev->brightness_set_blocking = as3645a_set_assist_brightness;
/* Value 0 is off in LED class. */
fled_cdev->max_brightness =
@@ -635,14 +609,22 @@
flash->cfg.assist_max_ua) + 1;
fled_cdev->flags = LED_DEV_CAP_FLASH | LED_CORE_SUSPENDRESUME;
- rval = led_classdev_flash_register(&flash->client->dev, &flash->fled);
- if (rval) {
- led_classdev_unregister(iled_cdev);
- dev_err(&flash->client->dev,
- "led_classdev_flash_register() failed, error %d\n",
- rval);
- }
+ init_data.fwnode = flash->flash_node;
+ init_data.devicename = AS_NAME;
+ init_data.default_label = "flash";
+ rval = led_classdev_flash_register_ext(&flash->client->dev,
+ &flash->fled, &init_data);
+ if (rval)
+ goto out_err;
+
+ return rval;
+
+out_err:
+ led_classdev_unregister(iled_cdev);
+ dev_err(&flash->client->dev,
+ "led_classdev_flash_register() failed, error %d\n",
+ rval);
return rval;
}
@@ -667,8 +649,9 @@
},
};
- strlcpy(cfg.dev_name, led->name, sizeof(cfg.dev_name));
- strlcpy(cfgind.dev_name, flash->iled_cdev.name, sizeof(cfg.dev_name));
+ strlcpy(cfg.dev_name, led->dev->kobj.name, sizeof(cfg.dev_name));
+ strlcpy(cfgind.dev_name, flash->iled_cdev.dev->kobj.name,
+ sizeof(cfgind.dev_name));
flash->vf = v4l2_flash_init(
&flash->client->dev, flash->flash_node, &flash->fled, NULL,
@@ -689,7 +672,6 @@
static int as3645a_probe(struct i2c_client *client)
{
- struct as3645a_names names;
struct as3645a *flash;
int rval;
@@ -702,7 +684,7 @@
flash->client = client;
- rval = as3645a_parse_node(flash, &names, dev_fwnode(&client->dev));
+ rval = as3645a_parse_node(flash, dev_fwnode(&client->dev));
if (rval < 0)
return rval;
@@ -717,7 +699,7 @@
if (rval)
goto out_mutex_destroy;
- rval = as3645a_led_class_setup(flash, &names);
+ rval = as3645a_led_class_setup(flash);
if (rval)
goto out_mutex_destroy;
diff --git a/drivers/leds/leds-cr0014114.c b/drivers/leds/leds-cr0014114.c
index 0e42624..2da448a 100644
--- a/drivers/leds/leds-cr0014114.c
+++ b/drivers/leds/leds-cr0014114.c
@@ -8,7 +8,6 @@
#include <linux/of_device.h>
#include <linux/spi/spi.h>
#include <linux/workqueue.h>
-#include <uapi/linux/uleds.h>
/*
* CR0014114 SPI protocol descrtiption:
@@ -40,8 +39,9 @@
#define CR_FW_DELAY_MSEC 10
#define CR_RECOUNT_DELAY (HZ * 3600)
+#define CR_DEV_NAME "cr0014114"
+
struct cr0014114_led {
- char name[LED_MAX_NAME_SIZE];
struct cr0014114 *priv;
struct led_classdev ldev;
u8 brightness;
@@ -167,8 +167,7 @@
struct cr0014114_led,
ldev);
- dev_dbg(led->priv->dev, "Set brightness of %s to %d\n",
- led->name, brightness);
+ dev_dbg(led->priv->dev, "Set brightness to %d\n", brightness);
mutex_lock(&led->priv->lock);
led->brightness = (u8)brightness;
@@ -183,42 +182,32 @@
size_t i = 0;
struct cr0014114_led *led;
struct fwnode_handle *child;
- struct device_node *np;
+ struct led_init_data init_data = {};
int ret;
- const char *str;
device_for_each_child_node(priv->dev, child) {
- np = to_of_node(child);
led = &priv->leds[i];
- ret = fwnode_property_read_string(child, "label", &str);
- if (ret)
- snprintf(led->name, sizeof(led->name),
- "cr0014114::");
- else
- snprintf(led->name, sizeof(led->name),
- "cr0014114:%s", str);
-
fwnode_property_read_string(child, "linux,default-trigger",
&led->ldev.default_trigger);
led->priv = priv;
- led->ldev.name = led->name;
led->ldev.max_brightness = CR_MAX_BRIGHTNESS;
led->ldev.brightness_set_blocking = cr0014114_set_sync;
- ret = devm_of_led_classdev_register(priv->dev, np,
- &led->ldev);
+ init_data.fwnode = child;
+ init_data.devicename = CR_DEV_NAME;
+ init_data.default_label = ":";
+
+ ret = devm_led_classdev_register_ext(priv->dev, &led->ldev,
+ &init_data);
if (ret) {
dev_err(priv->dev,
- "failed to register LED device %s, err %d",
- led->name, ret);
+ "failed to register LED device, err %d", ret);
fwnode_handle_put(child);
return ret;
}
- led->ldev.dev->of_node = np;
-
i++;
}
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index bdc98dd..a5c73f3 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -73,11 +73,11 @@
static int create_gpio_led(const struct gpio_led *template,
struct gpio_led_data *led_dat, struct device *parent,
- struct device_node *np, gpio_blink_set_t blink_set)
+ struct fwnode_handle *fwnode, gpio_blink_set_t blink_set)
{
+ struct led_init_data init_data = {};
int ret, state;
- led_dat->cdev.name = template->name;
led_dat->cdev.default_trigger = template->default_trigger;
led_dat->can_sleep = gpiod_cansleep(led_dat->gpiod);
if (!led_dat->can_sleep)
@@ -108,7 +108,16 @@
if (ret < 0)
return ret;
- return devm_of_led_classdev_register(parent, np, &led_dat->cdev);
+ if (template->name) {
+ led_dat->cdev.name = template->name;
+ ret = devm_led_classdev_register(parent, &led_dat->cdev);
+ } else {
+ init_data.fwnode = fwnode;
+ ret = devm_led_classdev_register_ext(parent, &led_dat->cdev,
+ &init_data);
+ }
+
+ return ret;
}
struct gpio_leds_priv {
@@ -141,15 +150,6 @@
struct gpio_led_data *led_dat = &priv->leds[priv->num_leds];
struct gpio_led led = {};
const char *state = NULL;
- struct device_node *np = to_of_node(child);
-
- ret = fwnode_property_read_string(child, "label", &led.name);
- if (ret && IS_ENABLED(CONFIG_OF) && np)
- led.name = np->name;
- if (!led.name) {
- fwnode_handle_put(child);
- return ERR_PTR(-EINVAL);
- }
led.gpiod = devm_fwnode_get_gpiod_from_child(dev, NULL, child,
GPIOD_ASIS,
@@ -181,7 +181,7 @@
if (fwnode_property_present(child, "panic-indicator"))
led.panic_indicator = 1;
- ret = create_gpio_led(&led, led_dat, dev, np, NULL);
+ ret = create_gpio_led(&led, led_dat, dev, child, NULL);
if (ret < 0) {
fwnode_handle_put(child);
return ERR_PTR(ret);
diff --git a/drivers/leds/leds-is31fl319x.c b/drivers/leds/leds-is31fl319x.c
index 2d077b8..ca6634b 100644
--- a/drivers/leds/leds-is31fl319x.c
+++ b/drivers/leds/leds-is31fl319x.c
@@ -333,12 +333,11 @@
{
struct is31fl319x_chip *is31;
struct device *dev = &client->dev;
- struct i2c_adapter *adapter = to_i2c_adapter(dev->parent);
int err;
int i = 0;
u32 aggregated_led_microamp = IS31FL319X_CURRENT_MAX;
- if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
return -EIO;
is31 = devm_kzalloc(&client->dev, sizeof(*is31), GFP_KERNEL);
diff --git a/drivers/leds/leds-is31fl32xx.c b/drivers/leds/leds-is31fl32xx.c
index 6fbab70..6f29b89 100644
--- a/drivers/leds/leds-is31fl32xx.c
+++ b/drivers/leds/leds-is31fl32xx.c
@@ -324,12 +324,6 @@
return 0;
}
-static inline size_t sizeof_is31fl32xx_priv(int num_leds)
-{
- return sizeof(struct is31fl32xx_priv) +
- (sizeof(struct is31fl32xx_led_data) * num_leds);
-}
-
static int is31fl32xx_parse_child_dt(const struct device *dev,
const struct device_node *child,
struct is31fl32xx_led_data *led_data)
@@ -450,7 +444,7 @@
if (!count)
return -EINVAL;
- priv = devm_kzalloc(dev, sizeof_is31fl32xx_priv(count),
+ priv = devm_kzalloc(dev, struct_size(priv, leds, count),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
diff --git a/drivers/leds/leds-ktd2692.c b/drivers/leds/leds-ktd2692.c
index f639182..670efee 100644
--- a/drivers/leds/leds-ktd2692.c
+++ b/drivers/leds/leds-ktd2692.c
@@ -19,7 +19,7 @@
/* Value related the movie mode */
#define KTD2692_MOVIE_MODE_CURRENT_LEVELS 16
#define KTD2692_MM_TO_FL_RATIO(x) ((x) / 3)
-#define KTD2962_MM_MIN_CURR_THRESHOLD_SCALE 8
+#define KTD2692_MM_MIN_CURR_THRESHOLD_SCALE 8
/* Value related the flash mode */
#define KTD2692_FLASH_MODE_TIMEOUT_LEVELS 8
@@ -250,7 +250,7 @@
ktd2692_expresswire_reset(led);
gpiod_direction_output(led->aux_gpio, KTD2692_LOW);
- ktd2692_expresswire_write(led, (KTD2962_MM_MIN_CURR_THRESHOLD_SCALE - 1)
+ ktd2692_expresswire_write(led, (KTD2692_MM_MIN_CURR_THRESHOLD_SCALE - 1)
| KTD2692_REG_MM_MIN_CURR_THRESHOLD_BASE);
ktd2692_expresswire_write(led, KTD2692_FLASH_MODE_CURR_PERCENT(45)
| KTD2692_REG_FLASH_CURRENT_BASE);
diff --git a/drivers/leds/leds-lm3532.c b/drivers/leds/leds-lm3532.c
index 180895b..0507c65 100644
--- a/drivers/leds/leds-lm3532.c
+++ b/drivers/leds/leds-lm3532.c
@@ -23,11 +23,11 @@
#define LM3532_REG_PWM_B_CFG 0x14
#define LM3532_REG_PWM_C_CFG 0x15
#define LM3532_REG_ZONE_CFG_A 0x16
-#define LM3532_REG_CTRL_A_BRT 0x17
+#define LM3532_REG_CTRL_A_FS_CURR 0x17
#define LM3532_REG_ZONE_CFG_B 0x18
-#define LM3532_REG_CTRL_B_BRT 0x19
+#define LM3532_REG_CTRL_B_FS_CURR 0x19
#define LM3532_REG_ZONE_CFG_C 0x1a
-#define LM3532_REG_CTRL_C_BRT 0x1b
+#define LM3532_REG_CTRL_C_FS_CURR 0x1b
#define LM3532_REG_ENABLE 0x1d
#define LM3532_ALS_CONFIG 0x23
#define LM3532_REG_ZN_0_HI 0x60
@@ -38,9 +38,12 @@
#define LM3532_REG_ZN_2_LO 0x65
#define LM3532_REG_ZN_3_HI 0x66
#define LM3532_REG_ZN_3_LO 0x67
+#define LM3532_REG_ZONE_TRGT_A 0x70
+#define LM3532_REG_ZONE_TRGT_B 0x75
+#define LM3532_REG_ZONE_TRGT_C 0x7a
#define LM3532_REG_MAX 0x7e
-/* Contorl Enable */
+/* Control Enable */
#define LM3532_CTRL_A_ENABLE BIT(0)
#define LM3532_CTRL_B_ENABLE BIT(1)
#define LM3532_CTRL_C_ENABLE BIT(2)
@@ -86,6 +89,10 @@
#define LM3532_NUM_AVG_VALS 8
#define LM3532_NUM_IMP_VALS 32
+#define LM3532_FS_CURR_MIN 5000
+#define LM3532_FS_CURR_MAX 29800
+#define LM3532_FS_CURR_STEP 800
+
/*
* struct lm3532_als_data
* @config - value of ALS configuration register
@@ -116,8 +123,11 @@
* @priv - Pointer the device data structure
* @control_bank - Control bank the LED is associated to
* @mode - Mode of the LED string
+ * @ctrl_brt_pointer - Zone target register that controls the sink
* @num_leds - Number of LED strings are supported in this array
+ * @full_scale_current - The full-scale current setting for the current sink.
* @led_strings - The LED strings supported in this array
+ * @enabled - Enabled status
* @label - LED label
*/
struct lm3532_led {
@@ -126,7 +136,10 @@
int control_bank;
int mode;
+ int ctrl_brt_pointer;
int num_leds;
+ int full_scale_current;
+ int enabled:1;
u32 led_strings[LM3532_MAX_CONTROL_BANKS];
char label[LED_MAX_NAME_SIZE];
};
@@ -168,11 +181,11 @@
{LM3532_REG_PWM_B_CFG, 0x82},
{LM3532_REG_PWM_C_CFG, 0x82},
{LM3532_REG_ZONE_CFG_A, 0xf1},
- {LM3532_REG_CTRL_A_BRT, 0xf3},
+ {LM3532_REG_CTRL_A_FS_CURR, 0xf3},
{LM3532_REG_ZONE_CFG_B, 0xf1},
- {LM3532_REG_CTRL_B_BRT, 0xf3},
+ {LM3532_REG_CTRL_B_FS_CURR, 0xf3},
{LM3532_REG_ZONE_CFG_C, 0xf1},
- {LM3532_REG_CTRL_C_BRT, 0xf3},
+ {LM3532_REG_CTRL_C_FS_CURR, 0xf3},
{LM3532_REG_ENABLE, 0xf8},
{LM3532_ALS_CONFIG, 0x44},
{LM3532_REG_ZN_0_HI, 0x35},
@@ -195,7 +208,7 @@
.cache_type = REGCACHE_FLAT,
};
-const static int als_imp_table[LM3532_NUM_IMP_VALS] = {37000, 18500, 12330,
+static const int als_imp_table[LM3532_NUM_IMP_VALS] = {37000, 18500, 12330,
92500, 7400, 6170, 5290,
4630, 4110, 3700, 3360,
3080, 2850, 2640, 2440,
@@ -252,7 +265,7 @@
return -EINVAL;
}
-const static int als_avrg_table[LM3532_NUM_AVG_VALS] = {17920, 35840, 71680,
+static const int als_avrg_table[LM3532_NUM_AVG_VALS] = {17920, 35840, 71680,
1433360, 286720, 573440,
1146880, 2293760};
static int lm3532_get_als_avg_index(int avg_time)
@@ -267,7 +280,7 @@
avg_time);
}
-const static int ramp_table[LM3532_NUM_RAMP_VALS] = { 8, 1024, 2048, 4096, 8192,
+static const int ramp_table[LM3532_NUM_RAMP_VALS] = { 8, 1024, 2048, 4096, 8192,
16384, 32768, 65536};
static int lm3532_get_ramp_index(int ramp_time)
{
@@ -281,11 +294,15 @@
ramp_time);
}
+/* Caller must take care of locking */
static int lm3532_led_enable(struct lm3532_led *led_data)
{
int ctrl_en_val = BIT(led_data->control_bank);
int ret;
+ if (led_data->enabled)
+ return 0;
+
ret = regmap_update_bits(led_data->priv->regmap, LM3532_REG_ENABLE,
ctrl_en_val, ctrl_en_val);
if (ret) {
@@ -293,22 +310,38 @@
return ret;
}
- return regulator_enable(led_data->priv->regulator);
+ ret = regulator_enable(led_data->priv->regulator);
+ if (ret < 0)
+ return ret;
+
+ led_data->enabled = 1;
+
+ return 0;
}
+/* Caller must take care of locking */
static int lm3532_led_disable(struct lm3532_led *led_data)
{
int ctrl_en_val = BIT(led_data->control_bank);
int ret;
+ if (!led_data->enabled)
+ return 0;
+
ret = regmap_update_bits(led_data->priv->regmap, LM3532_REG_ENABLE,
- ctrl_en_val, ~ctrl_en_val);
+ ctrl_en_val, 0);
if (ret) {
dev_err(led_data->priv->dev, "Failed to set ctrl:%d\n", ret);
return ret;
}
- return regulator_disable(led_data->priv->regulator);
+ ret = regulator_disable(led_data->priv->regulator);
+ if (ret < 0)
+ return ret;
+
+ led_data->enabled = 0;
+
+ return 0;
}
static int lm3532_brightness_set(struct led_classdev *led_cdev,
@@ -321,7 +354,7 @@
mutex_lock(&led->priv->lock);
- if (led->mode == LM3532_BL_MODE_ALS) {
+ if (led->mode == LM3532_ALS_CTRL) {
if (brt_val > LED_OFF)
ret = lm3532_led_enable(led);
else
@@ -339,8 +372,8 @@
if (ret)
goto unlock;
- brightness_reg = LM3532_REG_CTRL_A_BRT + led->control_bank * 2;
- brt_val = brt_val / LM3532_BRT_VAL_ADJUST;
+ brightness_reg = LM3532_REG_ZONE_TRGT_A + led->control_bank * 5 +
+ (led->ctrl_brt_pointer >> 2);
ret = regmap_write(led->priv->regmap, brightness_reg, brt_val);
@@ -356,8 +389,43 @@
unsigned int output_cfg_val = 0;
unsigned int output_cfg_shift = 0;
unsigned int output_cfg_mask = 0;
+ unsigned int brightness_config_reg;
+ unsigned int brightness_config_val;
+ int fs_current_reg;
+ int fs_current_val;
int ret, i;
+ if (drvdata->enable_gpio)
+ gpiod_direction_output(drvdata->enable_gpio, 1);
+
+ brightness_config_reg = LM3532_REG_ZONE_CFG_A + led->control_bank * 2;
+ /*
+ * This could be hard coded to the default value but the control
+ * brightness register may have changed during boot.
+ */
+ ret = regmap_read(drvdata->regmap, brightness_config_reg,
+ &led->ctrl_brt_pointer);
+ if (ret)
+ return ret;
+
+ led->ctrl_brt_pointer &= LM3532_ZONE_MASK;
+ brightness_config_val = led->ctrl_brt_pointer | led->mode;
+ ret = regmap_write(drvdata->regmap, brightness_config_reg,
+ brightness_config_val);
+ if (ret)
+ return ret;
+
+ if (led->full_scale_current) {
+ fs_current_reg = LM3532_REG_CTRL_A_FS_CURR + led->control_bank * 2;
+ fs_current_val = (led->full_scale_current - LM3532_FS_CURR_MIN) /
+ LM3532_FS_CURR_STEP;
+
+ ret = regmap_write(drvdata->regmap, fs_current_reg,
+ fs_current_val);
+ if (ret)
+ return ret;
+ }
+
for (i = 0; i < led->num_leds; i++) {
output_cfg_shift = led->led_strings[i] * 2;
output_cfg_val |= (led->control_bank << output_cfg_shift);
@@ -382,7 +450,6 @@
struct lm3532_als_data *als = priv->als_data;
u32 als_vmin, als_vmax, als_vstep;
int zone_reg = LM3532_REG_ZN_0_HI;
- int brightnes_config_reg;
int ret;
int i;
@@ -411,14 +478,7 @@
als->config = (als->als_avrg_time | (LM3532_ENABLE_ALS) |
(als->als_input_mode << LM3532_ALS_SEL_SHIFT));
- ret = regmap_write(priv->regmap, LM3532_ALS_CONFIG, als->config);
- if (ret)
- return ret;
-
- brightnes_config_reg = LM3532_REG_ZONE_CFG_A + led->control_bank * 2;
-
- return regmap_update_bits(priv->regmap, brightnes_config_reg,
- LM3532_I2C_CTRL, LM3532_ALS_CTRL);
+ return regmap_write(priv->regmap, LM3532_ALS_CONFIG, als->config);
}
static int lm3532_parse_als(struct lm3532_data *priv)
@@ -541,18 +601,27 @@
goto child_out;
}
+ if (fwnode_property_present(child, "led-max-microamp") &&
+ fwnode_property_read_u32(child, "led-max-microamp",
+ &led->full_scale_current))
+ dev_err(&priv->client->dev,
+ "Failed getting led-max-microamp\n");
+ else
+ led->full_scale_current = min(led->full_scale_current,
+ LM3532_FS_CURR_MAX);
+
if (led->mode == LM3532_BL_MODE_ALS) {
+ led->mode = LM3532_ALS_CTRL;
ret = lm3532_parse_als(priv);
if (ret)
dev_err(&priv->client->dev, "Failed to parse als\n");
else
lm3532_als_configure(priv, led);
+ } else {
+ led->mode = LM3532_I2C_CTRL;
}
- led->num_leds = fwnode_property_read_u32_array(child,
- "led-sources",
- NULL, 0);
-
+ led->num_leds = fwnode_property_count_u32(child, "led-sources");
if (led->num_leds > LM3532_MAX_LED_STRINGS) {
dev_err(&priv->client->dev, "To many LED string defined\n");
continue;
@@ -590,7 +659,13 @@
goto child_out;
}
- lm3532_init_registers(led);
+ ret = lm3532_init_registers(led);
+ if (ret) {
+ dev_err(&priv->client->dev, "register init err: %d\n",
+ ret);
+ fwnode_handle_put(child);
+ goto child_out;
+ }
i++;
}
@@ -637,9 +712,6 @@
return ret;
}
- if (drvdata->enable_gpio)
- gpiod_direction_output(drvdata->enable_gpio, 1);
-
return ret;
}
diff --git a/drivers/leds/leds-lm3601x.c b/drivers/leds/leds-lm3601x.c
index 081aa71..b02972f 100644
--- a/drivers/leds/leds-lm3601x.c
+++ b/drivers/leds/leds-lm3601x.c
@@ -10,7 +10,6 @@
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/slab.h>
-#include <uapi/linux/uleds.h>
#define LM3601X_LED_IR 0x0
#define LM3601X_LED_TORCH 0x1
@@ -90,8 +89,6 @@
struct regmap *regmap;
struct mutex lock;
- char led_name[LED_MAX_NAME_SIZE];
-
unsigned int flash_timeout;
unsigned int last_flag;
@@ -322,10 +319,12 @@
.fault_get = lm3601x_flash_fault_get,
};
-static int lm3601x_register_leds(struct lm3601x_led *led)
+static int lm3601x_register_leds(struct lm3601x_led *led,
+ struct fwnode_handle *fwnode)
{
struct led_classdev *led_cdev;
struct led_flash_setting *setting;
+ struct led_init_data init_data = {};
led->fled_cdev.ops = &flash_ops;
@@ -342,20 +341,25 @@
setting->val = led->flash_current_max;
led_cdev = &led->fled_cdev.led_cdev;
- led_cdev->name = led->led_name;
led_cdev->brightness_set_blocking = lm3601x_brightness_set;
led_cdev->max_brightness = DIV_ROUND_UP(led->torch_current_max,
LM3601X_TORCH_REG_DIV);
led_cdev->flags |= LED_DEV_CAP_FLASH;
- return led_classdev_flash_register(&led->client->dev, &led->fled_cdev);
+ init_data.fwnode = fwnode;
+ init_data.devicename = led->client->name;
+ init_data.default_label = (led->led_mode == LM3601X_LED_TORCH) ?
+ "torch" : "infrared";
+
+ return led_classdev_flash_register_ext(&led->client->dev,
+ &led->fled_cdev, &init_data);
}
-static int lm3601x_parse_node(struct lm3601x_led *led)
+static int lm3601x_parse_node(struct lm3601x_led *led,
+ struct fwnode_handle **fwnode)
{
struct fwnode_handle *child = NULL;
int ret = -ENODEV;
- const char *name;
child = device_get_next_child_node(&led->client->dev, child);
if (!child) {
@@ -376,17 +380,6 @@
goto out_err;
}
- ret = fwnode_property_read_string(child, "label", &name);
- if (ret) {
- if (led->led_mode == LM3601X_LED_TORCH)
- name = "torch";
- else
- name = "infrared";
- }
-
- snprintf(led->led_name, sizeof(led->led_name),
- "%s:%s", led->client->name, name);
-
ret = fwnode_property_read_u32(child, "led-max-microamp",
&led->torch_current_max);
if (ret) {
@@ -411,6 +404,8 @@
goto out_err;
}
+ *fwnode = child;
+
out_err:
fwnode_handle_put(child);
return ret;
@@ -419,6 +414,7 @@
static int lm3601x_probe(struct i2c_client *client)
{
struct lm3601x_led *led;
+ struct fwnode_handle *fwnode;
int ret;
led = devm_kzalloc(&client->dev, sizeof(*led), GFP_KERNEL);
@@ -428,7 +424,7 @@
led->client = client;
i2c_set_clientdata(client, led);
- ret = lm3601x_parse_node(led);
+ ret = lm3601x_parse_node(led, &fwnode);
if (ret)
return -ENODEV;
@@ -442,7 +438,7 @@
mutex_init(&led->lock);
- return lm3601x_register_leds(led);
+ return lm3601x_register_leds(led, fwnode);
}
static int lm3601x_remove(struct i2c_client *client)
diff --git a/drivers/leds/leds-lm36274.c b/drivers/leds/leds-lm36274.c
index ed9dc85..836b60c 100644
--- a/drivers/leds/leds-lm36274.c
+++ b/drivers/leds/leds-lm36274.c
@@ -90,9 +90,7 @@
snprintf(label, sizeof(label),
"%s:%s", lm36274_data->pdev->name, name);
- lm36274_data->num_leds = fwnode_property_read_u32_array(child,
- "led-sources",
- NULL, 0);
+ lm36274_data->num_leds = fwnode_property_count_u32(child, "led-sources");
if (lm36274_data->num_leds <= 0)
return -ENODEV;
diff --git a/drivers/leds/leds-lm3692x.c b/drivers/leds/leds-lm3692x.c
index 4f413a7..3d381f2 100644
--- a/drivers/leds/leds-lm3692x.c
+++ b/drivers/leds/leds-lm3692x.c
@@ -13,7 +13,6 @@
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
-#include <uapi/linux/uleds.h>
#define LM36922_MODEL 0
#define LM36923_MODEL 1
@@ -103,7 +102,6 @@
* @regmap - Devices register map
* @enable_gpio - VDDIO/EN gpio to enable communication interface
* @regulator - LED supply regulator pointer
- * @label - LED label
* @led_enable - LED sync to be enabled
* @model_id - Current device model ID enumerated
*/
@@ -114,7 +112,6 @@
struct regmap *regmap;
struct gpio_desc *enable_gpio;
struct regulator *regulator;
- char label[LED_MAX_NAME_SIZE];
int led_enable;
int model_id;
};
@@ -325,7 +322,7 @@
static int lm3692x_probe_dt(struct lm3692x_led *led)
{
struct fwnode_handle *child = NULL;
- const char *name;
+ struct led_init_data init_data = {};
int ret;
led->enable_gpio = devm_gpiod_get_optional(&led->client->dev,
@@ -350,30 +347,23 @@
fwnode_property_read_string(child, "linux,default-trigger",
&led->led_dev.default_trigger);
- ret = fwnode_property_read_string(child, "label", &name);
- if (ret)
- snprintf(led->label, sizeof(led->label),
- "%s::", led->client->name);
- else
- snprintf(led->label, sizeof(led->label),
- "%s:%s", led->client->name, name);
-
ret = fwnode_property_read_u32(child, "reg", &led->led_enable);
if (ret) {
dev_err(&led->client->dev, "reg DT property missing\n");
return ret;
}
- led->led_dev.name = led->label;
+ init_data.fwnode = child;
+ init_data.devicename = led->client->name;
+ init_data.default_label = ":";
- ret = devm_led_classdev_register(&led->client->dev, &led->led_dev);
+ ret = devm_led_classdev_register_ext(&led->client->dev, &led->led_dev,
+ &init_data);
if (ret) {
dev_err(&led->client->dev, "led register err: %d\n", ret);
return ret;
}
- led->led_dev.dev->of_node = to_of_node(child);
-
return 0;
}
diff --git a/drivers/leds/leds-lm3697.c b/drivers/leds/leds-lm3697.c
index 54e0e35..b71711a 100644
--- a/drivers/leds/leds-lm3697.c
+++ b/drivers/leds/leds-lm3697.c
@@ -244,10 +244,7 @@
led->lmu_data.lsb_brightness_reg = LM3697_CTRL_A_BRT_LSB +
led->control_bank * 2;
- led->num_leds = fwnode_property_read_u32_array(child,
- "led-sources",
- NULL, 0);
-
+ led->num_leds = fwnode_property_count_u32(child, "led-sources");
if (led->num_leds > LM3697_MAX_LED_STRINGS) {
dev_err(&priv->client->dev, "To many LED strings defined\n");
continue;
diff --git a/drivers/leds/leds-lp5562.c b/drivers/leds/leds-lp5562.c
index 37632fc..edb57c4 100644
--- a/drivers/leds/leds-lp5562.c
+++ b/drivers/leds/leds-lp5562.c
@@ -260,7 +260,11 @@
{
const struct firmware *fw = chip->fw;
- if (fw->size > LP5562_PROGRAM_LENGTH) {
+ /*
+ * the firmware is encoded in ascii hex character, with 2 chars
+ * per byte
+ */
+ if (fw->size > (LP5562_PROGRAM_LENGTH * 2)) {
dev_err(&chip->cl->dev, "firmware data size overflow: %zu\n",
fw->size);
return;
diff --git a/drivers/leds/leds-lp8860.c b/drivers/leds/leds-lp8860.c
index ed680d0..ac2f5d6 100644
--- a/drivers/leds/leds-lp8860.c
+++ b/drivers/leds/leds-lp8860.c
@@ -18,7 +18,6 @@
#include <linux/of_gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/slab.h>
-#include <uapi/linux/uleds.h>
#define LP8860_DISP_CL1_BRT_MSB 0x00
#define LP8860_DISP_CL1_BRT_LSB 0x01
@@ -83,6 +82,8 @@
#define LP8860_CLEAR_FAULTS 0x01
+#define LP8860_NAME "lp8860"
+
/**
* struct lp8860_led -
* @lock - Lock for reading/writing the device
@@ -92,7 +93,6 @@
* @eeprom_regmap - EEPROM register map
* @enable_gpio - VDDIO/EN gpio to enable communication interface
* @regulator - LED supply regulator pointer
- * @label - LED label
*/
struct lp8860_led {
struct mutex lock;
@@ -102,7 +102,6 @@
struct regmap *eeprom_regmap;
struct gpio_desc *enable_gpio;
struct regulator *regulator;
- char label[LED_MAX_NAME_SIZE];
};
struct lp8860_eeprom_reg {
@@ -383,25 +382,19 @@
struct lp8860_led *led;
struct device_node *np = client->dev.of_node;
struct device_node *child_node;
- const char *name;
+ struct led_init_data init_data = {};
led = devm_kzalloc(&client->dev, sizeof(*led), GFP_KERNEL);
if (!led)
return -ENOMEM;
- for_each_available_child_of_node(np, child_node) {
- led->led_dev.default_trigger = of_get_property(child_node,
- "linux,default-trigger",
- NULL);
+ child_node = of_get_next_available_child(np, NULL);
+ if (!child_node)
+ return -EINVAL;
- ret = of_property_read_string(child_node, "label", &name);
- if (!ret)
- snprintf(led->label, sizeof(led->label), "%s:%s",
- id->name, name);
- else
- snprintf(led->label, sizeof(led->label),
- "%s::display_cluster", id->name);
- }
+ led->led_dev.default_trigger = of_get_property(child_node,
+ "linux,default-trigger",
+ NULL);
led->enable_gpio = devm_gpiod_get_optional(&client->dev,
"enable", GPIOD_OUT_LOW);
@@ -416,7 +409,6 @@
led->regulator = NULL;
led->client = client;
- led->led_dev.name = led->label;
led->led_dev.brightness_set_blocking = lp8860_brightness_set;
mutex_init(&led->lock);
@@ -443,7 +435,12 @@
if (ret)
return ret;
- ret = devm_led_classdev_register(&client->dev, &led->led_dev);
+ init_data.fwnode = of_fwnode_handle(child_node);
+ init_data.devicename = LP8860_NAME;
+ init_data.default_label = ":display_cluster";
+
+ ret = devm_led_classdev_register_ext(&client->dev, &led->led_dev,
+ &init_data);
if (ret) {
dev_err(&client->dev, "led register err: %d\n", ret);
return ret;
diff --git a/drivers/leds/leds-lt3593.c b/drivers/leds/leds-lt3593.c
index 83e8e58..c94995f 100644
--- a/drivers/leds/leds-lt3593.c
+++ b/drivers/leds/leds-lt3593.c
@@ -10,10 +10,10 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/of.h>
-#include <uapi/linux/uleds.h>
+
+#define LED_LT3593_NAME "lt3593"
struct lt3593_led_data {
- char name[LED_MAX_NAME_SIZE];
struct led_classdev cdev;
struct gpio_desc *gpiod;
};
@@ -66,6 +66,7 @@
struct lt3593_led_data *led_data;
struct fwnode_handle *child;
int ret, state = LEDS_GPIO_DEFSTATE_OFF;
+ struct led_init_data init_data = {};
const char *tmp;
if (!dev->of_node)
@@ -86,14 +87,6 @@
child = device_get_next_child_node(dev, NULL);
- ret = fwnode_property_read_string(child, "label", &tmp);
- if (ret < 0)
- snprintf(led_data->name, sizeof(led_data->name),
- "lt3593::");
- else
- snprintf(led_data->name, sizeof(led_data->name),
- "lt3593:%s", tmp);
-
fwnode_property_read_string(child, "linux,default-trigger",
&led_data->cdev.default_trigger);
@@ -102,11 +95,14 @@
state = LEDS_GPIO_DEFSTATE_ON;
}
- led_data->cdev.name = led_data->name;
led_data->cdev.brightness_set_blocking = lt3593_led_set;
led_data->cdev.brightness = state ? LED_FULL : LED_OFF;
- ret = devm_led_classdev_register(dev, &led_data->cdev);
+ init_data.fwnode = child;
+ init_data.devicename = LED_LT3593_NAME;
+ init_data.default_label = ":";
+
+ ret = devm_led_classdev_register_ext(dev, &led_data->cdev, &init_data);
if (ret < 0) {
fwnode_handle_put(child);
return ret;
diff --git a/drivers/leds/leds-max77650.c b/drivers/leds/leds-max77650.c
index 8a8e5c6..4c2d0b3 100644
--- a/drivers/leds/leds-max77650.c
+++ b/drivers/leds/leds-max77650.c
@@ -62,7 +62,7 @@
static int max77650_led_probe(struct platform_device *pdev)
{
- struct device_node *of_node, *child;
+ struct fwnode_handle *child;
struct max77650_led *leds, *led;
struct device *dev;
struct regmap *map;
@@ -71,10 +71,6 @@
u32 reg;
dev = &pdev->dev;
- of_node = dev->of_node;
-
- if (!of_node)
- return -ENODEV;
leds = devm_kcalloc(dev, sizeof(*leds),
MAX77650_LED_NUM_LEDS, GFP_KERNEL);
@@ -85,14 +81,16 @@
if (!map)
return -ENODEV;
- num_leds = of_get_child_count(of_node);
+ num_leds = device_get_child_node_count(dev);
if (!num_leds || num_leds > MAX77650_LED_NUM_LEDS)
return -ENODEV;
- for_each_child_of_node(of_node, child) {
- rv = of_property_read_u32(child, "reg", ®);
- if (rv || reg >= MAX77650_LED_NUM_LEDS)
- return -EINVAL;
+ device_for_each_child_node(dev, child) {
+ rv = fwnode_property_read_u32(child, "reg", ®);
+ if (rv || reg >= MAX77650_LED_NUM_LEDS) {
+ rv = -EINVAL;
+ goto err_node_put;
+ }
led = &leds[reg];
led->map = map;
@@ -101,35 +99,40 @@
led->cdev.brightness_set_blocking = max77650_led_brightness_set;
led->cdev.max_brightness = MAX77650_LED_MAX_BRIGHTNESS;
- label = of_get_property(child, "label", NULL);
- if (!label) {
+ rv = fwnode_property_read_string(child, "label", &label);
+ if (rv) {
led->cdev.name = "max77650::";
} else {
led->cdev.name = devm_kasprintf(dev, GFP_KERNEL,
"max77650:%s", label);
- if (!led->cdev.name)
- return -ENOMEM;
+ if (!led->cdev.name) {
+ rv = -ENOMEM;
+ goto err_node_put;
+ }
}
- of_property_read_string(child, "linux,default-trigger",
- &led->cdev.default_trigger);
+ fwnode_property_read_string(child, "linux,default-trigger",
+ &led->cdev.default_trigger);
- rv = devm_of_led_classdev_register(dev, child, &led->cdev);
+ rv = devm_led_classdev_register(dev, &led->cdev);
if (rv)
- return rv;
+ goto err_node_put;
rv = regmap_write(map, led->regA, MAX77650_LED_A_DEFAULT);
if (rv)
- return rv;
+ goto err_node_put;
rv = regmap_write(map, led->regB, MAX77650_LED_B_DEFAULT);
if (rv)
- return rv;
+ goto err_node_put;
}
return regmap_write(map,
MAX77650_REG_CNFG_LED_TOP,
MAX77650_LED_TOP_DEFAULT);
+err_node_put:
+ fwnode_handle_put(child);
+ return rv;
}
static struct platform_driver max77650_led_driver = {
@@ -143,3 +146,4 @@
MODULE_DESCRIPTION("MAXIM 77650/77651 LED driver");
MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:max77650-led");
diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c
index 10497a4..14ef4cc 100644
--- a/drivers/leds/leds-netxbig.c
+++ b/drivers/leds/leds-netxbig.c
@@ -15,7 +15,48 @@
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/leds.h>
-#include <linux/platform_data/leds-kirkwood-netxbig.h>
+
+struct netxbig_gpio_ext {
+ unsigned int *addr;
+ int num_addr;
+ unsigned int *data;
+ int num_data;
+ unsigned int enable;
+};
+
+enum netxbig_led_mode {
+ NETXBIG_LED_OFF,
+ NETXBIG_LED_ON,
+ NETXBIG_LED_SATA,
+ NETXBIG_LED_TIMER1,
+ NETXBIG_LED_TIMER2,
+ NETXBIG_LED_MODE_NUM,
+};
+
+#define NETXBIG_LED_INVALID_MODE NETXBIG_LED_MODE_NUM
+
+struct netxbig_led_timer {
+ unsigned long delay_on;
+ unsigned long delay_off;
+ enum netxbig_led_mode mode;
+};
+
+struct netxbig_led {
+ const char *name;
+ const char *default_trigger;
+ int mode_addr;
+ int *mode_val;
+ int bright_addr;
+ int bright_max;
+};
+
+struct netxbig_led_platform_data {
+ struct netxbig_gpio_ext *gpio_ext;
+ struct netxbig_led_timer *timer;
+ int num_timer;
+ struct netxbig_led *leds;
+ int num_leds;
+};
/*
* GPIO extension bus.
@@ -306,7 +347,6 @@
return devm_led_classdev_register(&pdev->dev, &led_dat->cdev);
}
-#ifdef CONFIG_OF_GPIO
static int gpio_ext_get_of_pdata(struct device *dev, struct device_node *np,
struct netxbig_gpio_ext *gpio_ext)
{
@@ -388,12 +428,14 @@
}
gpio_ext = devm_kzalloc(dev, sizeof(*gpio_ext), GFP_KERNEL);
- if (!gpio_ext)
+ if (!gpio_ext) {
+ of_node_put(gpio_ext_np);
return -ENOMEM;
+ }
ret = gpio_ext_get_of_pdata(dev, gpio_ext_np, gpio_ext);
+ of_node_put(gpio_ext_np);
if (ret)
return ret;
- of_node_put(gpio_ext_np);
pdata->gpio_ext = gpio_ext;
/* Timers (optional) */
@@ -522,30 +564,20 @@
{},
};
MODULE_DEVICE_TABLE(of, of_netxbig_leds_match);
-#else
-static inline int
-netxbig_leds_get_of_pdata(struct device *dev,
- struct netxbig_led_platform_data *pdata)
-{
- return -ENODEV;
-}
-#endif /* CONFIG_OF_GPIO */
static int netxbig_led_probe(struct platform_device *pdev)
{
- struct netxbig_led_platform_data *pdata = dev_get_platdata(&pdev->dev);
+ struct netxbig_led_platform_data *pdata;
struct netxbig_led_data *leds_data;
int i;
int ret;
- if (!pdata) {
- pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
- if (!pdata)
- return -ENOMEM;
- ret = netxbig_leds_get_of_pdata(&pdev->dev, pdata);
- if (ret)
- return ret;
- }
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+ ret = netxbig_leds_get_of_pdata(&pdev->dev, pdata);
+ if (ret)
+ return ret;
leds_data = devm_kcalloc(&pdev->dev,
pdata->num_leds, sizeof(*leds_data),
@@ -571,7 +603,7 @@
.probe = netxbig_led_probe,
.driver = {
.name = "leds-netxbig",
- .of_match_table = of_match_ptr(of_netxbig_leds_match),
+ .of_match_table = of_netxbig_leds_match,
},
};
diff --git a/drivers/leds/leds-ns2.c b/drivers/leds/leds-ns2.c
index f92e2c0..7c500df 100644
--- a/drivers/leds/leds-ns2.c
+++ b/drivers/leds/leds-ns2.c
@@ -245,7 +245,7 @@
struct device_node *np = dev->of_node;
struct device_node *child;
struct ns2_led *led, *leds;
- int num_leds = 0;
+ int ret, num_leds = 0;
num_leds = of_get_child_count(np);
if (!num_leds)
@@ -259,16 +259,16 @@
led = leds;
for_each_child_of_node(np, child) {
const char *string;
- int ret, i, num_modes;
+ int i, num_modes;
struct ns2_led_modval *modval;
ret = of_get_named_gpio(child, "cmd-gpio", 0);
if (ret < 0)
- return ret;
+ goto err_node_put;
led->cmd = ret;
ret = of_get_named_gpio(child, "slow-gpio", 0);
if (ret < 0)
- return ret;
+ goto err_node_put;
led->slow = ret;
ret = of_property_read_string(child, "label", &string);
led->name = (ret == 0) ? string : child->name;
@@ -281,7 +281,8 @@
if (ret < 0 || ret % 3) {
dev_err(dev,
"Missing or malformed modes-map property\n");
- return -EINVAL;
+ ret = -EINVAL;
+ goto err_node_put;
}
num_modes = ret / 3;
@@ -289,8 +290,10 @@
num_modes,
sizeof(struct ns2_led_modval),
GFP_KERNEL);
- if (!modval)
- return -ENOMEM;
+ if (!modval) {
+ ret = -ENOMEM;
+ goto err_node_put;
+ }
for (i = 0; i < num_modes; i++) {
of_property_read_u32_index(child,
@@ -314,6 +317,10 @@
pdata->num_leds = num_leds;
return 0;
+
+err_node_put:
+ of_node_put(child);
+ return ret;
}
static const struct of_device_id of_ns2_leds_match[] = {
diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c
index 2908710..c7c7199 100644
--- a/drivers/leds/leds-pca9532.c
+++ b/drivers/leds/leds-pca9532.c
@@ -16,7 +16,7 @@
#include <linux/mutex.h>
#include <linux/workqueue.h>
#include <linux/leds-pca9532.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/of.h>
#include <linux/of_device.h>
diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
index 48d068f..8b6965a 100644
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -65,12 +65,6 @@
return 0;
}
-static inline size_t sizeof_pwm_leds_priv(int num_leds)
-{
- return sizeof(struct led_pwm_priv) +
- (sizeof(struct led_pwm_data) * num_leds);
-}
-
static int led_pwm_add(struct device *dev, struct led_pwm_priv *priv,
struct led_pwm *led, struct fwnode_handle *fwnode)
{
@@ -111,8 +105,7 @@
if (!led_data->period && (led->pwm_period_ns > 0))
led_data->period = led->pwm_period_ns;
- ret = devm_of_led_classdev_register(dev, to_of_node(fwnode),
- &led_data->cdev);
+ ret = devm_led_classdev_register(dev, &led_data->cdev);
if (ret == 0) {
priv->num_leds++;
led_pwm_set(&led_data->cdev, led_data->cdev.brightness);
@@ -175,7 +168,7 @@
if (!count)
return -EINVAL;
- priv = devm_kzalloc(&pdev->dev, sizeof_pwm_leds_priv(count),
+ priv = devm_kzalloc(&pdev->dev, struct_size(priv, leds, count),
GFP_KERNEL);
if (!priv)
return -ENOMEM;
diff --git a/drivers/leds/leds-sc27xx-bltc.c b/drivers/leds/leds-sc27xx-bltc.c
index fecf27f..0ede874 100644
--- a/drivers/leds/leds-sc27xx-bltc.c
+++ b/drivers/leds/leds-sc27xx-bltc.c
@@ -6,7 +6,6 @@
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
-#include <uapi/linux/uleds.h>
/* PMIC global control register definition */
#define SC27XX_MODULE_EN0 0xc08
@@ -46,7 +45,7 @@
#define SC27XX_DELTA_T_MAX (SC27XX_LEDS_STEP * 255)
struct sc27xx_led {
- char name[LED_MAX_NAME_SIZE];
+ struct fwnode_handle *fwnode;
struct led_classdev ldev;
struct sc27xx_led_priv *priv;
u8 line;
@@ -249,19 +248,24 @@
for (i = 0; i < SC27XX_LEDS_MAX; i++) {
struct sc27xx_led *led = &priv->leds[i];
+ struct led_init_data init_data = {};
if (!led->active)
continue;
led->line = i;
led->priv = priv;
- led->ldev.name = led->name;
led->ldev.brightness_set_blocking = sc27xx_led_set;
led->ldev.pattern_set = sc27xx_led_pattern_set;
led->ldev.pattern_clear = sc27xx_led_pattern_clear;
led->ldev.default_trigger = "pattern";
- err = devm_led_classdev_register(dev, &led->ldev);
+ init_data.fwnode = led->fwnode;
+ init_data.devicename = "sc27xx";
+ init_data.default_label = ":";
+
+ err = devm_led_classdev_register_ext(dev, &led->ldev,
+ &init_data);
if (err)
return err;
}
@@ -274,7 +278,6 @@
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node, *child;
struct sc27xx_led_priv *priv;
- const char *str;
u32 base, count, reg;
int err;
@@ -316,15 +319,8 @@
return -EINVAL;
}
+ priv->leds[reg].fwnode = of_fwnode_handle(child);
priv->leds[reg].active = true;
-
- err = of_property_read_string(child, "label", &str);
- if (err)
- snprintf(priv->leds[reg].name, LED_MAX_NAME_SIZE,
- "sc27xx::");
- else
- snprintf(priv->leds[reg].name, LED_MAX_NAME_SIZE,
- "sc27xx:%s", str);
}
err = sc27xx_led_register(dev, priv);
diff --git a/drivers/leds/leds-syscon.c b/drivers/leds/leds-syscon.c
index e35dff0..b58f3ca 100644
--- a/drivers/leds/leds-syscon.c
+++ b/drivers/leds/leds-syscon.c
@@ -115,7 +115,7 @@
}
sled->cdev.brightness_set = syscon_led_set;
- ret = led_classdev_register(dev, &sled->cdev);
+ ret = devm_led_classdev_register(dev, &sled->cdev);
if (ret < 0)
return ret;
diff --git a/drivers/leds/leds-ti-lmu-common.c b/drivers/leds/leds-ti-lmu-common.c
index adc7293..d7f10ad 100644
--- a/drivers/leds/leds-ti-lmu-common.c
+++ b/drivers/leds/leds-ti-lmu-common.c
@@ -11,10 +11,10 @@
#include <linux/leds-ti-lmu-common.h>
-const static int ramp_table[16] = {2048, 262000, 524000, 1049000, 2090000,
- 4194000, 8389000, 16780000, 33550000, 41940000,
- 50330000, 58720000, 67110000, 83880000,
- 100660000, 117440000};
+static const unsigned int ramp_table[16] = {2048, 262000, 524000, 1049000,
+ 2090000, 4194000, 8389000, 16780000, 33550000,
+ 41940000, 50330000, 58720000, 67110000,
+ 83880000, 100660000, 117440000};
static int ti_lmu_common_update_brightness(struct ti_lmu_bank *lmu_bank,
int brightness)
@@ -54,7 +54,7 @@
}
EXPORT_SYMBOL(ti_lmu_common_set_brightness);
-static int ti_lmu_common_convert_ramp_to_index(unsigned int usec)
+static unsigned int ti_lmu_common_convert_ramp_to_index(unsigned int usec)
{
int size = ARRAY_SIZE(ramp_table);
int i;
@@ -78,7 +78,7 @@
}
}
- return -EINVAL;
+ return 0;
}
int ti_lmu_common_set_ramp(struct ti_lmu_bank *lmu_bank)
@@ -94,9 +94,6 @@
ramp_down = ti_lmu_common_convert_ramp_to_index(lmu_bank->ramp_down_usec);
}
- if (ramp_up < 0 || ramp_down < 0)
- return -EINVAL;
-
ramp = (ramp_up << 4) | ramp_down;
return regmap_write(regmap, lmu_bank->runtime_ramp_reg, ramp);
diff --git a/drivers/leds/leds.h b/drivers/leds/leds.h
index 47b2294..0b577ce 100644
--- a/drivers/leds/leds.h
+++ b/drivers/leds/leds.h
@@ -27,5 +27,6 @@
extern struct rw_semaphore leds_list_lock;
extern struct list_head leds_list;
extern struct list_head trigger_list;
+extern const char * const led_colors[LED_COLOR_ID_MAX];
#endif /* __LEDS_H_INCLUDED */
diff --git a/drivers/leds/trigger/ledtrig-gpio.c b/drivers/leds/trigger/ledtrig-gpio.c
index 33cc99a..dc64679 100644
--- a/drivers/leds/trigger/ledtrig-gpio.c
+++ b/drivers/leds/trigger/ledtrig-gpio.c
@@ -131,10 +131,10 @@
if (gpio_data->gpio == gpio)
return n;
- if (!gpio) {
- if (gpio_data->gpio != 0)
+ if (!gpio_is_valid(gpio)) {
+ if (gpio_is_valid(gpio_data->gpio))
free_irq(gpio_to_irq(gpio_data->gpio), led);
- gpio_data->gpio = 0;
+ gpio_data->gpio = gpio;
return n;
}
@@ -144,7 +144,7 @@
if (ret) {
dev_err(dev, "request_irq failed with error %d\n", ret);
} else {
- if (gpio_data->gpio != 0)
+ if (gpio_is_valid(gpio_data->gpio))
free_irq(gpio_to_irq(gpio_data->gpio), led);
gpio_data->gpio = gpio;
/* After changing the GPIO, we need to update the LED. */
@@ -172,6 +172,8 @@
return -ENOMEM;
gpio_data->led = led;
+ gpio_data->gpio = -ENOENT;
+
led_set_trigger_data(led, gpio_data);
return 0;
@@ -181,7 +183,7 @@
{
struct gpio_trig_data *gpio_data = led_get_trigger_data(led);
- if (gpio_data->gpio != 0)
+ if (gpio_is_valid(gpio_data->gpio))
free_irq(gpio_to_irq(gpio_data->gpio), led);
kfree(gpio_data);
}
diff --git a/drivers/mfd/altera-sysmgr.c b/drivers/mfd/altera-sysmgr.c
index 2ee14d8..d2a13a5 100644
--- a/drivers/mfd/altera-sysmgr.c
+++ b/drivers/mfd/altera-sysmgr.c
@@ -88,16 +88,6 @@
};
/**
- * sysmgr_match_phandle
- * Matching function used by driver_find_device().
- * Return: True if match is found, otherwise false.
- */
-static int sysmgr_match_phandle(struct device *dev, const void *data)
-{
- return dev->of_node == (const struct device_node *)data;
-}
-
-/**
* altr_sysmgr_regmap_lookup_by_phandle
* Find the sysmgr previous configured in probe() and return regmap property.
* Return: regmap if found or error if not found.
@@ -117,8 +107,8 @@
if (!sysmgr_np)
return ERR_PTR(-ENODEV);
- dev = driver_find_device(&altr_sysmgr_driver.driver, NULL,
- (void *)sysmgr_np, sysmgr_match_phandle);
+ dev = driver_find_device_by_of_node(&altr_sysmgr_driver.driver,
+ (void *)sysmgr_np);
of_node_put(sysmgr_np);
if (!dev)
return ERR_PTR(-EPROBE_DEFER);
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index f894d1f..7310b47 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -858,13 +858,6 @@
}
static DEVICE_ATTR_RO(dev_state);
-static int match_devt(struct device *dev, const void *data)
-{
- const dev_t *devt = data;
-
- return dev->devt == *devt;
-}
-
/**
* dev_set_devstate: set to new device state and notify sysfs file.
*
@@ -880,7 +873,7 @@
dev->dev_state = state;
- clsdev = class_find_device(mei_class, NULL, &dev->cdev.dev, match_devt);
+ clsdev = class_find_device_by_devt(mei_class, dev->cdev.dev);
if (clsdev) {
sysfs_notify(&clsdev->kobj, NULL, "dev_state");
put_device(clsdev);
diff --git a/drivers/mux/core.c b/drivers/mux/core.c
index d1271c1..1fb2238 100644
--- a/drivers/mux/core.c
+++ b/drivers/mux/core.c
@@ -405,17 +405,12 @@
}
EXPORT_SYMBOL_GPL(mux_control_deselect);
-static int of_dev_node_match(struct device *dev, const void *data)
-{
- return dev->of_node == data;
-}
-
/* Note this function returns a reference to the mux_chip dev. */
static struct mux_chip *of_find_mux_chip_by_node(struct device_node *np)
{
struct device *dev;
- dev = class_find_device(&mux_class, NULL, np, of_dev_node_match);
+ dev = class_find_device_by_of_node(&mux_class, np);
return dev ? to_mux_chip(dev) : NULL;
}
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
index bb6586d..ed3829a 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c
@@ -754,17 +754,11 @@
return (void *)misc_op;
}
-static int hns_dsaf_dev_match(struct device *dev, const void *fwnode)
-{
- return dev->fwnode == fwnode;
-}
-
struct
platform_device *hns_dsaf_find_platform_device(struct fwnode_handle *fwnode)
{
struct device *dev;
- dev = bus_find_device(&platform_bus_type, NULL,
- fwnode, hns_dsaf_dev_match);
+ dev = bus_find_device_by_fwnode(&platform_bus_type, fwnode);
return dev ? to_platform_device(dev) : NULL;
}
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index bd04fe7..ce94087 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -262,11 +262,6 @@
};
#if IS_ENABLED(CONFIG_OF_MDIO)
-/* Helper function for of_mdio_find_bus */
-static int of_mdio_bus_match(struct device *dev, const void *mdio_bus_np)
-{
- return dev->of_node == mdio_bus_np;
-}
/**
* of_mdio_find_bus - Given an mii_bus node, find the mii_bus.
* @mdio_bus_np: Pointer to the mii_bus.
@@ -287,9 +282,7 @@
if (!mdio_bus_np)
return NULL;
- d = class_find_device(&mdio_bus_class, NULL, mdio_bus_np,
- of_mdio_bus_match);
-
+ d = class_find_device_by_of_node(&mdio_bus_class, mdio_bus_np);
return d ? to_mii_bus(d) : NULL;
}
EXPORT_SYMBOL(of_mdio_find_bus);
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index ac5d945..057d1ff 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -76,11 +76,6 @@
.name = "nvmem",
};
-static int of_nvmem_match(struct device *dev, const void *nvmem_np)
-{
- return dev->of_node == nvmem_np;
-}
-
static struct nvmem_device *of_nvmem_find(struct device_node *nvmem_np)
{
struct device *d;
@@ -88,7 +83,7 @@
if (!nvmem_np)
return NULL;
- d = bus_find_device(&nvmem_bus_type, NULL, nvmem_np, of_nvmem_match);
+ d = bus_find_device_by_of_node(&nvmem_bus_type, nvmem_np);
if (!d)
return NULL;
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 44f5349..000b957 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -280,12 +280,6 @@
}
EXPORT_SYMBOL(of_mdiobus_register);
-/* Helper function for of_phy_find_device */
-static int of_phy_match(struct device *dev, const void *phy_np)
-{
- return dev->of_node == phy_np;
-}
-
/**
* of_phy_find_device - Give a PHY node, find the phy_device
* @phy_np: Pointer to the phy's device tree node
@@ -301,7 +295,7 @@
if (!phy_np)
return NULL;
- d = bus_find_device(&mdio_bus_type, NULL, phy_np, of_phy_match);
+ d = bus_find_device_by_of_node(&mdio_bus_type, phy_np);
if (d) {
mdiodev = to_mdio_device(d);
if (mdiodev->flags & MDIO_DEVICE_FLAG_PHY)
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 7801e25..b47a229 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -37,11 +37,6 @@
{} /* Empty terminated list */
};
-static int of_dev_node_match(struct device *dev, const void *data)
-{
- return dev->of_node == data;
-}
-
/**
* of_find_device_by_node - Find the platform_device associated with a node
* @np: Pointer to device tree node
@@ -55,7 +50,7 @@
{
struct device *dev;
- dev = bus_find_device(&platform_bus_type, NULL, np, of_dev_node_match);
+ dev = bus_find_device_by_of_node(&platform_bus_type, np);
return dev ? to_platform_device(dev) : NULL;
}
EXPORT_SYMBOL(of_find_device_by_node);
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index a3c7338..dbeeb38 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -64,11 +64,6 @@
return &r->res;
}
-static int find_anything(struct device *dev, const void *data)
-{
- return 1;
-}
-
/*
* Some device drivers need know if PCI is initiated.
* Basically, we think PCI is not initiated when there
@@ -79,7 +74,7 @@
struct device *dev;
int no_devices;
- dev = bus_find_device(&pci_bus_type, NULL, NULL, find_anything);
+ dev = bus_find_next_device(&pci_bus_type, NULL);
no_devices = (dev == NULL);
put_device(dev);
return no_devices;
diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
index 9112faa..afefb29 100644
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -462,16 +462,11 @@
return NULL;
}
-static int of_node_match(struct device *dev, const void *data)
-{
- return dev->of_node == data;
-}
-
struct regulator_dev *of_find_regulator_by_node(struct device_node *np)
{
struct device *dev;
- dev = class_find_device(®ulator_class, NULL, np, of_node_match);
+ dev = class_find_device_by_of_node(®ulator_class, np);
return dev ? dev_to_rdev(dev) : NULL;
}
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 72b7ddc4..c93ef33 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -663,21 +663,12 @@
}
EXPORT_SYMBOL_GPL(rtc_update_irq);
-static int __rtc_match(struct device *dev, const void *data)
-{
- const char *name = data;
-
- if (strcmp(dev_name(dev), name) == 0)
- return 1;
- return 0;
-}
-
struct rtc_device *rtc_class_open(const char *name)
{
struct device *dev;
struct rtc_device *rtc = NULL;
- dev = class_find_device(rtc_class, NULL, name, __rtc_match);
+ dev = class_find_device_by_name(rtc_class, name);
if (dev)
rtc = to_rtc_device(dev);
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index c522e93..0005ec9 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -581,11 +581,6 @@
}
EXPORT_SYMBOL(ccwgroup_driver_register);
-static int __ccwgroup_match_all(struct device *dev, const void *data)
-{
- return 1;
-}
-
/**
* ccwgroup_driver_unregister() - deregister a ccw group driver
* @cdriver: driver to be deregistered
@@ -597,8 +592,7 @@
struct device *dev;
/* We don't want ccwgroup devices to live longer than their driver. */
- while ((dev = driver_find_device(&cdriver->driver, NULL, NULL,
- __ccwgroup_match_all))) {
+ while ((dev = driver_find_next_device(&cdriver->driver, NULL))) {
struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
ccwgroup_ungroup(gdev);
@@ -608,13 +602,6 @@
}
EXPORT_SYMBOL(ccwgroup_driver_unregister);
-static int __ccwgroupdev_check_busid(struct device *dev, const void *id)
-{
- const char *bus_id = id;
-
- return (strcmp(bus_id, dev_name(dev)) == 0);
-}
-
/**
* get_ccwgroupdev_by_busid() - obtain device from a bus id
* @gdrv: driver the device is owned by
@@ -631,8 +618,7 @@
{
struct device *dev;
- dev = driver_find_device(&gdrv->driver, NULL, bus_id,
- __ccwgroupdev_check_busid);
+ dev = driver_find_device_by_name(&gdrv->driver, bus_id);
return dev ? to_ccwgroupdev(dev) : NULL;
}
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index c421899..131430b 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1695,18 +1695,6 @@
EXPORT_SYMBOL_GPL(ccw_device_force_console);
#endif
-/*
- * get ccw_device matching the busid, but only if owned by cdrv
- */
-static int
-__ccwdev_check_busid(struct device *dev, const void *id)
-{
- const char *bus_id = id;
-
- return (strcmp(bus_id, dev_name(dev)) == 0);
-}
-
-
/**
* get_ccwdev_by_busid() - obtain device from a bus id
* @cdrv: driver the device is owned by
@@ -1723,8 +1711,7 @@
{
struct device *dev;
- dev = driver_find_device(&cdrv->driver, NULL, (void *)bus_id,
- __ccwdev_check_busid);
+ dev = driver_find_device_by_name(&cdrv->driver, bus_id);
return dev ? to_ccwdev(dev) : NULL;
}
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index 5638014..45bdb47 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -134,18 +134,6 @@
static int zcdn_create(const char *name);
static int zcdn_destroy(const char *name);
-/* helper function, matches the name for find_zcdndev_by_name() */
-static int __match_zcdn_name(struct device *dev, const void *data)
-{
- return strcmp(dev_name(dev), (const char *)data) == 0;
-}
-
-/* helper function, matches the devt value for find_zcdndev_by_devt() */
-static int __match_zcdn_devt(struct device *dev, const void *data)
-{
- return dev->devt == *((dev_t *) data);
-}
-
/*
* Find zcdn device by name.
* Returns reference to the zcdn device which needs to be released
@@ -153,10 +141,7 @@
*/
static inline struct zcdn_device *find_zcdndev_by_name(const char *name)
{
- struct device *dev =
- class_find_device(zcrypt_class, NULL,
- (void *) name,
- __match_zcdn_name);
+ struct device *dev = class_find_device_by_name(zcrypt_class, name);
return dev ? to_zcdn_dev(dev) : NULL;
}
@@ -168,10 +153,7 @@
*/
static inline struct zcdn_device *find_zcdndev_by_devt(dev_t devt)
{
- struct device *dev =
- class_find_device(zcrypt_class, NULL,
- (void *) &devt,
- __match_zcdn_devt);
+ struct device *dev = class_find_device_by_devt(zcrypt_class, devt);
return dev ? to_zcdn_dev(dev) : NULL;
}
diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c
index c074631..5b31322 100644
--- a/drivers/scsi/scsi_proc.c
+++ b/drivers/scsi/scsi_proc.c
@@ -372,15 +372,10 @@
return err;
}
-static int always_match(struct device *dev, const void *data)
-{
- return 1;
-}
-
static inline struct device *next_scsi_device(struct device *start)
{
- struct device *next = bus_find_device(&scsi_bus_type, start, NULL,
- always_match);
+ struct device *next = bus_find_next_device(&scsi_bus_type, start);
+
put_device(start);
return next;
}
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index f8b4654..f9502db 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -3655,37 +3655,25 @@
/*-------------------------------------------------------------------------*/
#if IS_ENABLED(CONFIG_OF)
-static int __spi_of_device_match(struct device *dev, const void *data)
-{
- return dev->of_node == data;
-}
-
/* must call put_device() when done with returned spi_device device */
struct spi_device *of_find_spi_device_by_node(struct device_node *node)
{
- struct device *dev = bus_find_device(&spi_bus_type, NULL, node,
- __spi_of_device_match);
+ struct device *dev = bus_find_device_by_of_node(&spi_bus_type, node);
+
return dev ? to_spi_device(dev) : NULL;
}
EXPORT_SYMBOL_GPL(of_find_spi_device_by_node);
#endif /* IS_ENABLED(CONFIG_OF) */
#if IS_ENABLED(CONFIG_OF_DYNAMIC)
-static int __spi_of_controller_match(struct device *dev, const void *data)
-{
- return dev->of_node == data;
-}
-
/* the spi controllers are not using spi_bus, so we find it with another way */
static struct spi_controller *of_find_spi_controller_by_node(struct device_node *node)
{
struct device *dev;
- dev = class_find_device(&spi_master_class, NULL, node,
- __spi_of_controller_match);
+ dev = class_find_device_by_of_node(&spi_master_class, node);
if (!dev && IS_ENABLED(CONFIG_SPI_SLAVE))
- dev = class_find_device(&spi_slave_class, NULL, node,
- __spi_of_controller_match);
+ dev = class_find_device_by_of_node(&spi_slave_class, node);
if (!dev)
return NULL;
@@ -3756,11 +3744,6 @@
return ACPI_COMPANION(dev->parent) == data;
}
-static int spi_acpi_device_match(struct device *dev, const void *data)
-{
- return ACPI_COMPANION(dev) == data;
-}
-
static struct spi_controller *acpi_spi_find_controller_by_adev(struct acpi_device *adev)
{
struct device *dev;
@@ -3780,8 +3763,7 @@
{
struct device *dev;
- dev = bus_find_device(&spi_bus_type, NULL, adev, spi_acpi_device_match);
-
+ dev = bus_find_device_by_acpi_dev(&spi_bus_type, adev);
return dev ? to_spi_device(dev) : NULL;
}
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 566728f..802c121 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2952,17 +2952,11 @@
EXPORT_SYMBOL(do_SAK);
-static int dev_match_devt(struct device *dev, const void *data)
-{
- const dev_t *devt = data;
- return dev->devt == *devt;
-}
-
/* Must put_device() after it's unused! */
static struct device *tty_get_device(struct tty_struct *tty)
{
dev_t devt = tty_devnum(tty);
- return class_find_device(tty_class, NULL, &devt, dev_match_devt);
+ return class_find_device_by_devt(tty_class, devt);
}
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 9063ede..e369660 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -942,17 +942,11 @@
return ret;
}
-static int match_devt(struct device *dev, const void *data)
-{
- return dev->devt == (dev_t)(unsigned long)(void *)data;
-}
-
static struct usb_device *usbdev_lookup_by_devt(dev_t devt)
{
struct device *dev;
- dev = bus_find_device(&usb_bus_type, NULL,
- (void *) (unsigned long) devt, match_devt);
+ dev = bus_find_device_by_devt(&usb_bus_type, devt);
if (!dev)
return NULL;
return to_usb_device(dev);
diff --git a/drivers/usb/roles/class.c b/drivers/usb/roles/class.c
index 86defca6..0526efb 100644
--- a/drivers/usb/roles/class.c
+++ b/drivers/usb/roles/class.c
@@ -85,16 +85,6 @@
}
EXPORT_SYMBOL_GPL(usb_role_switch_get_role);
-static int switch_fwnode_match(struct device *dev, const void *fwnode)
-{
- return dev_fwnode(dev) == fwnode;
-}
-
-static int switch_name_match(struct device *dev, const void *name)
-{
- return !strcmp((const char *)name, dev_name(dev));
-}
-
static void *usb_role_switch_match(struct device_connection *con, int ep,
void *data)
{
@@ -104,11 +94,9 @@
if (con->id && !fwnode_property_present(con->fwnode, con->id))
return NULL;
- dev = class_find_device(role_class, NULL, con->fwnode,
- switch_fwnode_match);
+ dev = class_find_device_by_fwnode(role_class, con->fwnode);
} else {
- dev = class_find_device(role_class, NULL, con->endpoint[ep],
- switch_name_match);
+ dev = class_find_device_by_name(role_class, con->endpoint[ep]);
}
return dev ? to_role_switch(dev) : ERR_PTR(-EPROBE_DEFER);
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index a18285a..94a3eda 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -205,16 +205,6 @@
put_device(&adev->dev);
}
-static int typec_port_fwnode_match(struct device *dev, const void *fwnode)
-{
- return dev_fwnode(dev) == fwnode;
-}
-
-static int typec_port_name_match(struct device *dev, const void *name)
-{
- return !strcmp((const char *)name, dev_name(dev));
-}
-
static void *typec_port_match(struct device_connection *con, int ep, void *data)
{
struct device *dev;
@@ -224,11 +214,9 @@
* we need to return ERR_PTR(-PROBE_DEFER) when there is no device.
*/
if (con->fwnode)
- return class_find_device(typec_class, NULL, con->fwnode,
- typec_port_fwnode_match);
+ return class_find_device_by_fwnode(typec_class, con->fwnode);
- dev = class_find_device(typec_class, NULL, con->endpoint[ep],
- typec_port_name_match);
+ dev = class_find_device_by_name(typec_class, con->endpoint[ep]);
return dev ? dev : ERR_PTR(-EPROBE_DEFER);
}
diff --git a/include/dt-bindings/leds/common.h b/include/dt-bindings/leds/common.h
index e171d0a..9e1256a 100644
--- a/include/dt-bindings/leds/common.h
+++ b/include/dt-bindings/leds/common.h
@@ -3,8 +3,9 @@
* This header provides macros for the common LEDs device tree bindings.
*
* Copyright (C) 2015, Samsung Electronics Co., Ltd.
- *
* Author: Jacek Anaszewski <j.anaszewski@samsung.com>
+ *
+ * Copyright (C) 2019 Jacek Anaszewski <jacek.anaszewski@gmail.com>
*/
#ifndef __DT_BINDINGS_LEDS_H
@@ -19,4 +20,56 @@
#define LEDS_BOOST_ADAPTIVE 1
#define LEDS_BOOST_FIXED 2
+/* Standard LED colors */
+#define LED_COLOR_ID_WHITE 0
+#define LED_COLOR_ID_RED 1
+#define LED_COLOR_ID_GREEN 2
+#define LED_COLOR_ID_BLUE 3
+#define LED_COLOR_ID_AMBER 4
+#define LED_COLOR_ID_VIOLET 5
+#define LED_COLOR_ID_YELLOW 6
+#define LED_COLOR_ID_IR 7
+#define LED_COLOR_ID_MAX 8
+
+/* Standard LED functions */
+#define LED_FUNCTION_ACTIVITY "activity"
+#define LED_FUNCTION_ALARM "alarm"
+#define LED_FUNCTION_BACKLIGHT "backlight"
+#define LED_FUNCTION_BLUETOOTH "bluetooth"
+#define LED_FUNCTION_BOOT "boot"
+#define LED_FUNCTION_CPU "cpu"
+#define LED_FUNCTION_CAPSLOCK "capslock"
+#define LED_FUNCTION_CHARGING "charging"
+#define LED_FUNCTION_DEBUG "debug"
+#define LED_FUNCTION_DISK "disk"
+#define LED_FUNCTION_DISK_ACTIVITY "disk-activity"
+#define LED_FUNCTION_DISK_ERR "disk-err"
+#define LED_FUNCTION_DISK_READ "disk-read"
+#define LED_FUNCTION_DISK_WRITE "disk-write"
+#define LED_FUNCTION_FAULT "fault"
+#define LED_FUNCTION_FLASH "flash"
+#define LED_FUNCTION_HEARTBEAT "heartbeat"
+#define LED_FUNCTION_INDICATOR "indicator"
+#define LED_FUNCTION_KBD_BACKLIGHT "kbd_backlight"
+#define LED_FUNCTION_LAN "lan"
+#define LED_FUNCTION_MAIL "mail"
+#define LED_FUNCTION_MTD "mtd"
+#define LED_FUNCTION_MICMUTE "micmute"
+#define LED_FUNCTION_MUTE "mute"
+#define LED_FUNCTION_NUMLOCK "numlock"
+#define LED_FUNCTION_PANIC "panic"
+#define LED_FUNCTION_PROGRAMMING "programming"
+#define LED_FUNCTION_POWER "power"
+#define LED_FUNCTION_RX "rx"
+#define LED_FUNCTION_SD "sd"
+#define LED_FUNCTION_SCROLLLOCK "scrolllock"
+#define LED_FUNCTION_STANDBY "standby"
+#define LED_FUNCTION_STATUS "status"
+#define LED_FUNCTION_TORCH "torch"
+#define LED_FUNCTION_TX "tx"
+#define LED_FUNCTION_USB "usb"
+#define LED_FUNCTION_WAN "wan"
+#define LED_FUNCTION_WLAN "wlan"
+#define LED_FUNCTION_WPS "wps"
+
#endif /* __DT_BINDINGS_LEDS_H */
diff --git a/include/linux/device.h b/include/linux/device.h
index 6717ade..8b9bffd 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -164,16 +164,100 @@
struct device *subsys_dev_iter_next(struct subsys_dev_iter *iter);
void subsys_dev_iter_exit(struct subsys_dev_iter *iter);
+int device_match_name(struct device *dev, const void *name);
int device_match_of_node(struct device *dev, const void *np);
+int device_match_fwnode(struct device *dev, const void *fwnode);
+int device_match_devt(struct device *dev, const void *pdevt);
+int device_match_acpi_dev(struct device *dev, const void *adev);
+int device_match_any(struct device *dev, const void *unused);
int bus_for_each_dev(struct bus_type *bus, struct device *start, void *data,
int (*fn)(struct device *dev, void *data));
struct device *bus_find_device(struct bus_type *bus, struct device *start,
const void *data,
int (*match)(struct device *dev, const void *data));
-struct device *bus_find_device_by_name(struct bus_type *bus,
- struct device *start,
- const char *name);
+/**
+ * bus_find_device_by_name - device iterator for locating a particular device
+ * of a specific name.
+ * @bus: bus type
+ * @start: Device to begin with
+ * @name: name of the device to match
+ */
+static inline struct device *bus_find_device_by_name(struct bus_type *bus,
+ struct device *start,
+ const char *name)
+{
+ return bus_find_device(bus, start, name, device_match_name);
+}
+
+/**
+ * bus_find_device_by_of_node : device iterator for locating a particular device
+ * matching the of_node.
+ * @bus: bus type
+ * @np: of_node of the device to match.
+ */
+static inline struct device *
+bus_find_device_by_of_node(struct bus_type *bus, const struct device_node *np)
+{
+ return bus_find_device(bus, NULL, np, device_match_of_node);
+}
+
+/**
+ * bus_find_device_by_fwnode : device iterator for locating a particular device
+ * matching the fwnode.
+ * @bus: bus type
+ * @fwnode: fwnode of the device to match.
+ */
+static inline struct device *
+bus_find_device_by_fwnode(struct bus_type *bus, const struct fwnode_handle *fwnode)
+{
+ return bus_find_device(bus, NULL, fwnode, device_match_fwnode);
+}
+
+/**
+ * bus_find_device_by_devt : device iterator for locating a particular device
+ * matching the device type.
+ * @bus: bus type
+ * @devt: device type of the device to match.
+ */
+static inline struct device *bus_find_device_by_devt(struct bus_type *bus,
+ dev_t devt)
+{
+ return bus_find_device(bus, NULL, &devt, device_match_devt);
+}
+
+/**
+ * bus_find_next_device - Find the next device after a given device in a
+ * given bus.
+ */
+static inline struct device *
+bus_find_next_device(struct bus_type *bus,struct device *cur)
+{
+ return bus_find_device(bus, cur, NULL, device_match_any);
+}
+
+#ifdef CONFIG_ACPI
+struct acpi_device;
+
+/**
+ * bus_find_device_by_acpi_dev : device iterator for locating a particular device
+ * matching the ACPI COMPANION device.
+ * @bus: bus type
+ * @adev: ACPI COMPANION device to match.
+ */
+static inline struct device *
+bus_find_device_by_acpi_dev(struct bus_type *bus, const struct acpi_device *adev)
+{
+ return bus_find_device(bus, NULL, adev, device_match_acpi_dev);
+}
+#else
+static inline struct device *
+bus_find_device_by_acpi_dev(struct bus_type *bus, const void *adev)
+{
+ return NULL;
+}
+#endif
+
struct device *subsys_find_device_by_id(struct bus_type *bus, unsigned int id,
struct device *hint);
int bus_for_each_drv(struct bus_type *bus, struct device_driver *start,
@@ -342,6 +426,83 @@
struct device *start, const void *data,
int (*match)(struct device *dev, const void *data));
+/**
+ * driver_find_device_by_name - device iterator for locating a particular device
+ * of a specific name.
+ * @driver: the driver we're iterating
+ * @name: name of the device to match
+ */
+static inline struct device *driver_find_device_by_name(struct device_driver *drv,
+ const char *name)
+{
+ return driver_find_device(drv, NULL, name, device_match_name);
+}
+
+/**
+ * driver_find_device_by_of_node- device iterator for locating a particular device
+ * by of_node pointer.
+ * @driver: the driver we're iterating
+ * @np: of_node pointer to match.
+ */
+static inline struct device *
+driver_find_device_by_of_node(struct device_driver *drv,
+ const struct device_node *np)
+{
+ return driver_find_device(drv, NULL, np, device_match_of_node);
+}
+
+/**
+ * driver_find_device_by_fwnode- device iterator for locating a particular device
+ * by fwnode pointer.
+ * @driver: the driver we're iterating
+ * @fwnode: fwnode pointer to match.
+ */
+static inline struct device *
+driver_find_device_by_fwnode(struct device_driver *drv,
+ const struct fwnode_handle *fwnode)
+{
+ return driver_find_device(drv, NULL, fwnode, device_match_fwnode);
+}
+
+/**
+ * driver_find_device_by_devt- device iterator for locating a particular device
+ * by devt.
+ * @driver: the driver we're iterating
+ * @devt: devt pointer to match.
+ */
+static inline struct device *driver_find_device_by_devt(struct device_driver *drv,
+ dev_t devt)
+{
+ return driver_find_device(drv, NULL, &devt, device_match_devt);
+}
+
+static inline struct device *driver_find_next_device(struct device_driver *drv,
+ struct device *start)
+{
+ return driver_find_device(drv, start, NULL, device_match_any);
+}
+
+#ifdef CONFIG_ACPI
+/**
+ * driver_find_device_by_acpi_dev : device iterator for locating a particular
+ * device matching the ACPI_COMPANION device.
+ * @driver: the driver we're iterating
+ * @adev: ACPI_COMPANION device to match.
+ */
+static inline struct device *
+driver_find_device_by_acpi_dev(struct device_driver *drv,
+ const struct acpi_device *adev)
+{
+ return driver_find_device(drv, NULL, adev, device_match_acpi_dev);
+}
+#else
+static inline struct device *
+driver_find_device_by_acpi_dev(struct device_driver *drv, const void *adev)
+{
+ return NULL;
+}
+#endif
+
void driver_deferred_probe_add(struct device *dev);
int driver_deferred_probe_check_state(struct device *dev);
int driver_deferred_probe_check_state_continue(struct device *dev);
@@ -471,6 +632,76 @@
struct device *start, const void *data,
int (*match)(struct device *, const void *));
+/**
+ * class_find_device_by_name - device iterator for locating a particular device
+ * of a specific name.
+ * @class: class type
+ * @name: name of the device to match
+ */
+static inline struct device *class_find_device_by_name(struct class *class,
+ const char *name)
+{
+ return class_find_device(class, NULL, name, device_match_name);
+}
+
+/**
+ * class_find_device_by_of_node : device iterator for locating a particular device
+ * matching the of_node.
+ * @class: class type
+ * @np: of_node of the device to match.
+ */
+static inline struct device *
+class_find_device_by_of_node(struct class *class, const struct device_node *np)
+{
+ return class_find_device(class, NULL, np, device_match_of_node);
+}
+
+/**
+ * class_find_device_by_fwnode : device iterator for locating a particular device
+ * matching the fwnode.
+ * @class: class type
+ * @fwnode: fwnode of the device to match.
+ */
+static inline struct device *
+class_find_device_by_fwnode(struct class *class,
+ const struct fwnode_handle *fwnode)
+{
+ return class_find_device(class, NULL, fwnode, device_match_fwnode);
+}
+
+/**
+ * class_find_device_by_devt : device iterator for locating a particular device
+ * matching the device type.
+ * @class: class type
+ * @devt: device type of the device to match.
+ */
+static inline struct device *class_find_device_by_devt(struct class *class,
+ dev_t devt)
+{
+ return class_find_device(class, NULL, &devt, device_match_devt);
+}
+
+#ifdef CONFIG_ACPI
+struct acpi_device;
+/**
+ * class_find_device_by_acpi_dev : device iterator for locating a particular
+ * device matching the ACPI_COMPANION device.
+ * @class: class type
+ * @adev: ACPI_COMPANION device to match.
+ */
+static inline struct device *
+class_find_device_by_acpi_dev(struct class *class, const struct acpi_device *adev)
+{
+ return class_find_device(class, NULL, adev, device_match_acpi_dev);
+}
+#else
+static inline struct device *
+class_find_device_by_acpi_dev(struct class *class, const void *adev)
+{
+ return NULL;
+}
+#endif
+
struct class_attribute {
struct attribute attr;
ssize_t (*show)(struct class *class, struct class_attribute *attr,
diff --git a/include/linux/led-class-flash.h b/include/linux/led-class-flash.h
index f52713f..1e82496 100644
--- a/include/linux/led-class-flash.h
+++ b/include/linux/led-class-flash.h
@@ -86,15 +86,20 @@
}
/**
- * led_classdev_flash_register - register a new object of led_classdev class
- * with support for flash LEDs
- * @parent: the flash LED to register
+ * led_classdev_flash_register_ext - register a new object of LED class with
+ * init data and with support for flash LEDs
+ * @parent: LED flash controller device this flash LED is driven by
* @fled_cdev: the led_classdev_flash structure for this device
+ * @init_data: the LED class flash device initialization data
*
* Returns: 0 on success or negative error value on failure
*/
-extern int led_classdev_flash_register(struct device *parent,
- struct led_classdev_flash *fled_cdev);
+extern int led_classdev_flash_register_ext(struct device *parent,
+ struct led_classdev_flash *fled_cdev,
+ struct led_init_data *init_data);
+
+#define led_classdev_flash_register(parent, fled_cdev) \
+ led_classdev_flash_register_ext(parent, fled_cdev, NULL)
/**
* led_classdev_flash_unregister - unregisters an object of led_classdev class
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 9b2bf57..b8df711 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -8,6 +8,7 @@
#ifndef __LINUX_LEDS_H_INCLUDED
#define __LINUX_LEDS_H_INCLUDED
+#include <dt-bindings/leds/common.h>
#include <linux/device.h>
#include <linux/kernfs.h>
#include <linux/list.h>
@@ -30,6 +31,30 @@
LED_FULL = 255,
};
+struct led_init_data {
+ /* device fwnode handle */
+ struct fwnode_handle *fwnode;
+ /*
+ * default <color:function> tuple, for backward compatibility
+ * with in-driver hard-coded LED names used as a fallback when
+ * DT "label" property is absent; it should be set to NULL
+ * in new LED class drivers.
+ */
+ const char *default_label;
+ /*
+ * string to be used for devicename section of LED class device
+ * either for label based LED name composition path or for fwnode
+ * based when devname_mandatory is true
+ */
+ const char *devicename;
+ /*
+ * indicates if LED name should always comprise devicename section;
+ * only LEDs exposed by drivers of hot-pluggable devices should
+ * set it to true
+ */
+ bool devname_mandatory;
+};
+
struct led_classdev {
const char *name;
enum led_brightness brightness;
@@ -125,16 +150,46 @@
struct mutex led_access;
};
-extern int of_led_classdev_register(struct device *parent,
- struct device_node *np,
- struct led_classdev *led_cdev);
-#define led_classdev_register(parent, led_cdev) \
- of_led_classdev_register(parent, NULL, led_cdev)
-extern int devm_of_led_classdev_register(struct device *parent,
- struct device_node *np,
- struct led_classdev *led_cdev);
-#define devm_led_classdev_register(parent, led_cdev) \
- devm_of_led_classdev_register(parent, NULL, led_cdev)
+/**
+ * led_classdev_register_ext - register a new object of LED class with
+ * init data
+ * @parent: LED controller device this LED is driven by
+ * @led_cdev: the led_classdev structure for this device
+ * @init_data: the LED class device initialization data
+ *
+ * Register a new object of LED class, with name derived from init_data.
+ *
+ * Returns: 0 on success or negative error value on failure
+ */
+extern int led_classdev_register_ext(struct device *parent,
+ struct led_classdev *led_cdev,
+ struct led_init_data *init_data);
+
+/**
+ * led_classdev_register - register a new object of LED class
+ * @parent: LED controller device this LED is driven by
+ * @led_cdev: the led_classdev structure for this device
+ *
+ * Register a new object of LED class, with name derived from the name property
+ * of passed led_cdev argument.
+ *
+ * Returns: 0 on success or negative error value on failure
+ */
+static inline int led_classdev_register(struct device *parent,
+ struct led_classdev *led_cdev)
+{
+ return led_classdev_register_ext(parent, led_cdev, NULL);
+}
+
+extern int devm_led_classdev_register_ext(struct device *parent,
+ struct led_classdev *led_cdev,
+ struct led_init_data *init_data);
+
+static inline int devm_led_classdev_register(struct device *parent,
+ struct led_classdev *led_cdev)
+{
+ return devm_led_classdev_register_ext(parent, led_cdev, NULL);
+}
extern void led_classdev_unregister(struct led_classdev *led_cdev);
extern void devm_led_classdev_unregister(struct device *parent,
struct led_classdev *led_cdev);
@@ -244,6 +299,22 @@
extern void led_sysfs_enable(struct led_classdev *led_cdev);
/**
+ * led_compose_name - compose LED class device name
+ * @dev: LED controller device object
+ * @child: child fwnode_handle describing a LED or a group of synchronized LEDs;
+ * it must be provided only for fwnode based LEDs
+ * @led_classdev_name: composed LED class device name
+ *
+ * Create LED class device name basing on the provided init_data argument.
+ * The name can have <devicename:color:function> or <color:function>.
+ * form, depending on the init_data configuration.
+ *
+ * Returns: 0 on success or negative error value on failure
+ */
+extern int led_compose_name(struct device *dev, struct led_init_data *init_data,
+ char *led_classdev_name);
+
+/**
* led_sysfs_is_disabled - check if LED sysfs interface is disabled
* @led_cdev: the LED to query
*
@@ -420,6 +491,15 @@
struct led_info *leds;
};
+struct led_properties {
+ u32 color;
+ bool color_present;
+ const char *function;
+ u32 func_enum;
+ bool func_enum_present;
+ const char *label;
+};
+
struct gpio_desc;
typedef int (*gpio_blink_set_t)(struct gpio_desc *desc, int state,
unsigned long *delay_on,
diff --git a/include/linux/platform_data/leds-kirkwood-netxbig.h b/include/linux/platform_data/leds-kirkwood-netxbig.h
deleted file mode 100644
index 3c85a73..0000000
--- a/include/linux/platform_data/leds-kirkwood-netxbig.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Platform data structure for netxbig LED driver
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#ifndef __LEDS_KIRKWOOD_NETXBIG_H
-#define __LEDS_KIRKWOOD_NETXBIG_H
-
-struct netxbig_gpio_ext {
- unsigned *addr;
- int num_addr;
- unsigned *data;
- int num_data;
- unsigned enable;
-};
-
-enum netxbig_led_mode {
- NETXBIG_LED_OFF,
- NETXBIG_LED_ON,
- NETXBIG_LED_SATA,
- NETXBIG_LED_TIMER1,
- NETXBIG_LED_TIMER2,
- NETXBIG_LED_MODE_NUM,
-};
-
-#define NETXBIG_LED_INVALID_MODE NETXBIG_LED_MODE_NUM
-
-struct netxbig_led_timer {
- unsigned long delay_on;
- unsigned long delay_off;
- enum netxbig_led_mode mode;
-};
-
-struct netxbig_led {
- const char *name;
- const char *default_trigger;
- int mode_addr;
- int *mode_val;
- int bright_addr;
- int bright_max;
-};
-
-struct netxbig_led_platform_data {
- struct netxbig_gpio_ext *gpio_ext;
- struct netxbig_led_timer *timer;
- int num_timer;
- struct netxbig_led *leds;
- int num_leds;
-};
-
-#endif /* __LEDS_KIRKWOOD_NETXBIG_H */
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 9bc36b5..37e15a9 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -51,6 +51,9 @@
extern void arch_setup_pdev_archdata(struct platform_device *);
extern struct resource *platform_get_resource(struct platform_device *,
unsigned int, unsigned int);
+extern struct device *
+platform_find_device_by_driver(struct device *start,
+ const struct device_driver *drv);
extern void __iomem *
devm_platform_ioremap_resource(struct platform_device *pdev,
unsigned int index);
diff --git a/net/ieee802154/core.c b/net/ieee802154/core.c
index 60b7ac5..de259b5 100644
--- a/net/ieee802154/core.c
+++ b/net/ieee802154/core.c
@@ -23,11 +23,6 @@
LIST_HEAD(cfg802154_rdev_list);
int cfg802154_rdev_list_generation;
-static int wpan_phy_match(struct device *dev, const void *data)
-{
- return !strcmp(dev_name(dev), (const char *)data);
-}
-
struct wpan_phy *wpan_phy_find(const char *str)
{
struct device *dev;
@@ -35,7 +30,7 @@
if (WARN_ON(!str))
return NULL;
- dev = class_find_device(&wpan_phy_class, NULL, str, wpan_phy_match);
+ dev = class_find_device_by_name(&wpan_phy_class, str);
if (!dev)
return NULL;
diff --git a/sound/soc/rockchip/rk3399_gru_sound.c b/sound/soc/rockchip/rk3399_gru_sound.c
index c16b0ff..d951100 100644
--- a/sound/soc/rockchip/rk3399_gru_sound.c
+++ b/sound/soc/rockchip/rk3399_gru_sound.c
@@ -422,11 +422,6 @@
},
};
-static int of_dev_node_match(struct device *dev, const void *data)
-{
- return dev->of_node == data;
-}
-
static int rockchip_sound_codec_node_match(struct device_node *np_codec)
{
struct device *dev;
@@ -438,8 +433,8 @@
continue;
if (dailink_match[i].bus_type) {
- dev = bus_find_device(dailink_match[i].bus_type, NULL,
- np_codec, of_dev_node_match);
+ dev = bus_find_device_by_of_node(dailink_match[i].bus_type,
+ np_codec);
if (!dev)
continue;
put_device(dev);
diff --git a/tools/leds/get_led_device_info.sh b/tools/leds/get_led_device_info.sh
new file mode 100755
index 0000000..ccfa442
--- /dev/null
+++ b/tools/leds/get_led_device_info.sh
@@ -0,0 +1,201 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+led_common_defs_path="include/dt-bindings/leds/common.h"
+
+num_args=$#
+if [ $num_args -eq 1 ]; then
+ linux_top=$(dirname `realpath $0` | awk -F/ \
+ '{ \
+ i=1; \
+ while (i <= NF - 2) { \
+ printf $i"/"; \
+ i++; \
+ }; \
+ }')
+ led_defs_path=$linux_top/$led_common_defs_path
+elif [ $num_args -eq 2 ]; then
+ led_defs_path=`realpath $2`
+else
+ echo "Usage: get_led_device_info.sh LED_CDEV_PATH [LED_COMMON_DEFS_PATH]"
+ exit 1
+fi
+
+if [ ! -f $led_defs_path ]; then
+ echo "$led_defs_path doesn't exist"
+ exit 1
+fi
+
+led_cdev_path=`echo $1 | sed s'/\/$//'`
+
+ls "$led_cdev_path/brightness" > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+ echo "Device \"$led_cdev_path\" does not exist."
+ exit 1
+fi
+
+bus=`readlink $led_cdev_path/device/subsystem | sed s'/.*\///'`
+usb_subdev=`readlink $led_cdev_path | grep usb | sed s'/\(.*usb[0-9]*\/[0-9]*-[0-9]*\)\/.*/\1/'`
+ls "$led_cdev_path/device/of_node/compatible" > /dev/null 2>&1
+of_node_missing=$?
+
+if [ "$bus" = "input" ]; then
+ input_node=`readlink $led_cdev_path/device | sed s'/.*\///'`
+ if [ ! -z "$usb_subdev" ]; then
+ bus="usb"
+ fi
+fi
+
+if [ "$bus" = "usb" ]; then
+ usb_interface=`readlink $led_cdev_path | sed s'/.*\(usb[0-9]*\)/\1/' | cut -d\/ -f3`
+ cd $led_cdev_path/../$usb_subdev
+ driver=`readlink $usb_interface/driver | sed s'/.*\///'`
+ if [ -d "$usb_interface/ieee80211" ]; then
+ wifi_phy=`ls -l $usb_interface/ieee80211 | grep phy | awk '{print $9}'`
+ fi
+ idVendor=`cat idVendor`
+ idProduct=`cat idProduct`
+ manufacturer=`cat manufacturer`
+ product=`cat product`
+elif [ "$bus" = "input" ]; then
+ cd $led_cdev_path
+ product=`cat device/name`
+ driver=`cat device/device/driver/description`
+elif [ $of_node_missing -eq 0 ]; then
+ cd $led_cdev_path
+ compatible=`cat device/of_node/compatible`
+ if [ "$compatible" = "gpio-leds" ]; then
+ driver="leds-gpio"
+ elif [ "$compatible" = "pwm-leds" ]; then
+ driver="leds-pwm"
+ else
+ manufacturer=`echo $compatible | awk -F, '{print $1}'`
+ product=`echo $compatible | awk -F, '{print $2}'`
+ fi
+else
+ echo "Unknown device type."
+ exit 1
+fi
+
+printf "\n#####################################\n"
+printf "# LED class device hardware details #\n"
+printf "#####################################\n\n"
+
+printf "bus:\t\t\t$bus\n"
+
+if [ ! -z "$idVendor" ]; then
+ printf "idVendor:\t\t$idVendor\n"
+fi
+
+if [ ! -z "$idProduct" ]; then
+ printf "idProduct:\t\t$idProduct\n"
+fi
+
+if [ ! -z "$manufacturer" ]; then
+ printf "manufacturer:\t\t$manufacturer\n"
+fi
+
+if [ ! -z "$product" ]; then
+ printf "product:\t\t$product\n"
+fi
+
+if [ ! -z "$driver" ]; then
+ printf "driver:\t\t\t$driver\n"
+fi
+
+if [ ! -z "$input_node" ]; then
+ printf "associated input node:\t$input_node\n"
+fi
+
+printf "\n####################################\n"
+printf "# LED class device name validation #\n"
+printf "####################################\n\n"
+
+led_name=`echo $led_cdev_path | sed s'/.*\///'`
+
+num_sections=`echo $led_name | awk -F: '{print NF}'`
+
+if [ $num_sections -eq 1 ]; then
+ printf "\":\" delimiter not detected.\t[ FAILED ]\n"
+ exit 1
+elif [ $num_sections -eq 2 ]; then
+ color=`echo $led_name | cut -d: -f1`
+ function=`echo $led_name | cut -d: -f2`
+elif [ $num_sections -eq 3 ]; then
+ devicename=`echo $led_name | cut -d: -f1`
+ color=`echo $led_name | cut -d: -f2`
+ function=`echo $led_name | cut -d: -f3`
+else
+ printf "Detected %d sections in the LED class device name - should the script be updated?\n" $num_sections
+ exit 1
+fi
+
+S_DEV="devicename"
+S_CLR="color "
+S_FUN="function "
+status_tab=20
+
+print_msg_ok()
+{
+ local section_name="$1"
+ local section_val="$2"
+ local msg="$3"
+ printf "$section_name :\t%-${status_tab}.${status_tab}s %s %s\n" "$section_val" "[ OK ] " "$msg"
+}
+
+print_msg_failed()
+{
+ local section_name="$1"
+ local section_val="$2"
+ local msg="$3"
+ printf "$section_name :\t%-${status_tab}.${status_tab}s %s %s\n" "$section_val" "[ FAILED ]" "$msg"
+}
+
+if [ ! -z "$input_node" ]; then
+ expected_devname=$input_node
+elif [ ! -z "$wifi_phy" ]; then
+ expected_devname=$wifi_phy
+fi
+
+if [ ! -z "$devicename" ]; then
+ if [ ! -z "$expected_devname" ]; then
+ if [ "$devicename" = "$expected_devname" ]; then
+ print_msg_ok "$S_DEV" "$devicename"
+ else
+ print_msg_failed "$S_DEV" "$devicename" "Expected: $expected_devname"
+ fi
+ else
+ if [ "$devicename" = "$manufacturer" ]; then
+ print_msg_failed "$S_DEV" "$devicename" "Redundant: use of vendor name is discouraged"
+ elif [ "$devicename" = "$product" ]; then
+ print_msg_failed "$S_DEV" "$devicename" "Redundant: use of product name is discouraged"
+ else
+ print_msg_failed "$S_DEV" "$devicename" "Unknown devicename - should the script be updated?"
+ fi
+ fi
+elif [ ! -z "$expected_devname" ]; then
+ print_msg_failed "$S_DEV" "blank" "Expected: $expected_devname"
+fi
+
+if [ ! -z "$color" ]; then
+ color_upper=`echo $color | tr [:lower:] [:upper:]`
+ color_id_definition=$(cat $led_defs_path | grep "_$color_upper\s" | awk '{print $2}')
+ if [ ! -z "$color_id_definition" ]; then
+ print_msg_ok "$S_CLR" "$color" "Matching definition: $color_id_definition"
+ else
+ print_msg_failed "$S_CLR" "$color" "Definition not found in $led_defs_path"
+ fi
+
+fi
+
+if [ ! -z "$function" ]; then
+ # strip optional enumerator
+ function=`echo $function | sed s'/\(.*\)-[0-9]*$/\1/'`
+ fun_definition=$(cat $led_defs_path | grep "\"$function\"" | awk '{print $2}')
+ if [ ! -z "$fun_definition" ]; then
+ print_msg_ok "$S_FUN" "$function" "Matching definition: $fun_definition"
+ else
+ print_msg_failed "$S_FUN" "$function" "Definition not found in $led_defs_path"
+ fi
+
+fi
