Merge tag 'thermal-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux
Pull thermal updates from Daniel Lezcano:
- Fix Kconfig typo "acces" -> "access" (Colin Ian King)
- Use dev_error_probe() to simplify the error handling on imx and imx8
platforms (Anson Huang)
- Use dedicated kobj_to_dev() instead of container_of() in the sysfs
core code (Tian Tao)
- Fix coding style by adding braces to a one line conditional statement
on rcar (Geert Uytterhoeven)
- Add DT binding documentation for the r8a774e1 platform and update the
Kconfig description supporting RZ/G2 SoCs (Lad Prabhakar)
- Simplify the return expression of stm_thermal_prepare on the stm32
platform (Qinglang Miao)
- Fix the unit in the function documentation for the idle injection
cooling device (Zhuguang Qing)
- Remove an unecessary mutex_init() in the core code (Qinglang Miao)
- Add support for keep alive events in the core code and the specific
int340x (Srinivas Pandruvada)
- Remove unused thermal zone variable in devfreq and cpufreq cooling
devices (Zhuguang Qing)
- Add the A100's THS controller support (Yangtao Li)
- Add power management on the omap3's bandgap sensor (Adam Ford)
- Fix a missing nlmsg_free in the netlink core error path (Jing
Xiangfeng)
* tag 'thermal-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux:
thermal: core: Adding missing nlmsg_free() in thermal_genl_sampling_temp()
thermal: ti-soc-thermal: Enable addition power management
thermal: sun8i: Add A100's THS controller support
thermal: sun8i: add TEMP_CALIB_MASK for calibration data in sun50i_h6_ths_calibrate
dt-bindings: thermal: sun8i: Add binding for A100's THS controller
thermal: cooling: Remove unused variable *tz
thermal: int340x: Add keep alive response method
thermal: core: Add new event for sending keep alive notifications
thermal: int340x: Provide notification for OEM variable change
thermal: core: remove unnecessary mutex_init()
thermal/idle_inject: Fix comment of idle_duration_us and name of latency_ns
thermal: Kconfig: Update description for RCAR_GEN3_THERMAL config
thermal: stm32: simplify the return expression of stm_thermal_prepare()
dt-bindings: thermal: rcar-gen3-thermal: Add r8a774e1 support
thermal: rcar_thermal: Add missing braces to conditional statement
thermal: Use kobj_to_dev() instead of container_of()
thermal: imx8mm: Use dev_err_probe() to simplify error handling
thermal: imx: Use dev_err_probe() to simplify error handling
drivers: thermal: Kconfig: fix spelling mistake "acces" -> "access"
diff --git a/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml b/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml
index 44ba676..31edd051 100644
--- a/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml
+++ b/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml
@@ -17,6 +17,7 @@
- allwinner,sun8i-h3-ths
- allwinner,sun8i-r40-ths
- allwinner,sun50i-a64-ths
+ - allwinner,sun50i-a100-ths
- allwinner,sun50i-h5-ths
- allwinner,sun50i-h6-ths
@@ -61,7 +62,9 @@
properties:
compatible:
contains:
- const: allwinner,sun50i-h6-ths
+ enum:
+ - allwinner,sun50i-a100-ths
+ - allwinner,sun50i-h6-ths
then:
properties:
@@ -103,6 +106,7 @@
- const: allwinner,sun8i-h3-ths
- const: allwinner,sun8i-r40-ths
- const: allwinner,sun50i-a64-ths
+ - const: allwinner,sun50i-a100-ths
- const: allwinner,sun50i-h5-ths
- const: allwinner,sun50i-h6-ths
diff --git a/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.yaml b/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.yaml
index b1a55ae..f386f2a 100644
--- a/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.yaml
+++ b/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.yaml
@@ -20,6 +20,7 @@
enum:
- renesas,r8a774a1-thermal # RZ/G2M
- renesas,r8a774b1-thermal # RZ/G2N
+ - renesas,r8a774e1-thermal # RZ/G2H
- renesas,r8a7795-thermal # R-Car H3
- renesas,r8a7796-thermal # R-Car M3-W
- renesas,r8a77961-thermal # R-Car M3-W+
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index b668224..7edc8dc 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -346,13 +346,13 @@
thermal framework.
config RCAR_GEN3_THERMAL
- tristate "Renesas R-Car Gen3 thermal driver"
+ tristate "Renesas R-Car Gen3 and RZ/G2 thermal driver"
depends on ARCH_RENESAS || COMPILE_TEST
depends on HAS_IOMEM
depends on OF
help
- Enable this to plug the R-Car Gen3 thermal sensor driver into the Linux
- thermal framework.
+ Enable this to plug the R-Car Gen3 or RZ/G2 thermal sensor driver into
+ the Linux thermal framework.
config KIRKWOOD_THERMAL
tristate "Temperature sensor on Marvell Kirkwood SoCs"
diff --git a/drivers/thermal/cpufreq_cooling.c b/drivers/thermal/cpufreq_cooling.c
index 6cf23a5..cc2959f 100644
--- a/drivers/thermal/cpufreq_cooling.c
+++ b/drivers/thermal/cpufreq_cooling.c
@@ -182,7 +182,6 @@
/**
* cpufreq_get_requested_power() - get the current power
* @cdev: &thermal_cooling_device pointer
- * @tz: a valid thermal zone device pointer
* @power: pointer in which to store the resulting power
*
* Calculate the current power consumption of the cpus in milliwatts
@@ -203,7 +202,6 @@
* Return: 0 on success, -E* if getting the static power failed.
*/
static int cpufreq_get_requested_power(struct thermal_cooling_device *cdev,
- struct thermal_zone_device *tz,
u32 *power)
{
unsigned long freq;
@@ -253,7 +251,6 @@
/**
* cpufreq_state2power() - convert a cpu cdev state to power consumed
* @cdev: &thermal_cooling_device pointer
- * @tz: a valid thermal zone device pointer
* @state: cooling device state to be converted
* @power: pointer in which to store the resulting power
*
@@ -266,7 +263,6 @@
* when calculating the static power.
*/
static int cpufreq_state2power(struct thermal_cooling_device *cdev,
- struct thermal_zone_device *tz,
unsigned long state, u32 *power)
{
unsigned int freq, num_cpus, idx;
@@ -288,7 +284,6 @@
/**
* cpufreq_power2state() - convert power to a cooling device state
* @cdev: &thermal_cooling_device pointer
- * @tz: a valid thermal zone device pointer
* @power: power in milliwatts to be converted
* @state: pointer in which to store the resulting state
*
@@ -306,8 +301,7 @@
* device.
*/
static int cpufreq_power2state(struct thermal_cooling_device *cdev,
- struct thermal_zone_device *tz, u32 power,
- unsigned long *state)
+ u32 power, unsigned long *state)
{
unsigned int target_freq;
u32 last_load, normalised_power;
diff --git a/drivers/thermal/cpuidle_cooling.c b/drivers/thermal/cpuidle_cooling.c
index 78e3e82..7ecab4b 100644
--- a/drivers/thermal/cpuidle_cooling.c
+++ b/drivers/thermal/cpuidle_cooling.c
@@ -30,7 +30,7 @@
/**
* cpuidle_cooling_runtime - Running time computation
- * @idle_duration_us: the idle cooling device
+ * @idle_duration_us: CPU idle time to inject in microseconds
* @state: a percentile based number
*
* The running duration is computed from the idle injection duration
diff --git a/drivers/thermal/devfreq_cooling.c b/drivers/thermal/devfreq_cooling.c
index a12d290..dfab49a 100644
--- a/drivers/thermal/devfreq_cooling.c
+++ b/drivers/thermal/devfreq_cooling.c
@@ -229,7 +229,6 @@
static int devfreq_cooling_get_requested_power(struct thermal_cooling_device *cdev,
- struct thermal_zone_device *tz,
u32 *power)
{
struct devfreq_cooling_device *dfc = cdev->devdata;
@@ -289,7 +288,6 @@
}
static int devfreq_cooling_state2power(struct thermal_cooling_device *cdev,
- struct thermal_zone_device *tz,
unsigned long state,
u32 *power)
{
@@ -308,7 +306,6 @@
}
static int devfreq_cooling_power2state(struct thermal_cooling_device *cdev,
- struct thermal_zone_device *tz,
u32 power, unsigned long *state)
{
struct devfreq_cooling_device *dfc = cdev->devdata;
diff --git a/drivers/thermal/gov_power_allocator.c b/drivers/thermal/gov_power_allocator.c
index 5cb518d..ab0be26 100644
--- a/drivers/thermal/gov_power_allocator.c
+++ b/drivers/thermal/gov_power_allocator.c
@@ -96,7 +96,7 @@
if (instance->trip != params->trip_max_desired_temperature)
continue;
- if (power_actor_get_min_power(cdev, tz, &min_power))
+ if (power_actor_get_min_power(cdev, &min_power))
continue;
sustainable_power += min_power;
@@ -388,7 +388,7 @@
if (!cdev_is_power_actor(cdev))
continue;
- if (cdev->ops->get_requested_power(cdev, tz, &req_power[i]))
+ if (cdev->ops->get_requested_power(cdev, &req_power[i]))
continue;
if (!total_weight)
@@ -398,7 +398,7 @@
weighted_req_power[i] = frac_to_int(weight * req_power[i]);
- if (power_actor_get_max_power(cdev, tz, &max_power[i]))
+ if (power_actor_get_max_power(cdev, &max_power[i]))
continue;
total_req_power += req_power[i];
diff --git a/drivers/thermal/imx8mm_thermal.c b/drivers/thermal/imx8mm_thermal.c
index f5124f1..a1e4f9b 100644
--- a/drivers/thermal/imx8mm_thermal.c
+++ b/drivers/thermal/imx8mm_thermal.c
@@ -146,13 +146,9 @@
return PTR_ERR(tmu->base);
tmu->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(tmu->clk)) {
- ret = PTR_ERR(tmu->clk);
- if (ret != -EPROBE_DEFER)
- dev_err(&pdev->dev,
- "failed to get tmu clock: %d\n", ret);
- return ret;
- }
+ if (IS_ERR(tmu->clk))
+ return dev_err_probe(&pdev->dev, PTR_ERR(tmu->clk),
+ "failed to get tmu clock\n");
ret = clk_prepare_enable(tmu->clk);
if (ret) {
diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index 3f74ab4..2c7473d 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -716,14 +716,9 @@
if (of_find_property(pdev->dev.of_node, "nvmem-cells", NULL)) {
ret = imx_init_from_nvmem_cells(pdev);
- if (ret) {
- if (ret == -EPROBE_DEFER)
- return ret;
-
- dev_err(&pdev->dev, "failed to init from nvmem: %d\n",
- ret);
- return ret;
- }
+ if (ret)
+ return dev_err_probe(&pdev->dev, ret,
+ "failed to init from nvmem\n");
} else {
ret = imx_init_from_tempmon_data(pdev);
if (ret) {
@@ -746,14 +741,9 @@
data->socdata->power_down_mask);
ret = imx_thermal_register_legacy_cooling(data);
- if (ret) {
- if (ret == -EPROBE_DEFER)
- return ret;
-
- dev_err(&pdev->dev,
- "failed to register cpufreq cooling device: %d\n", ret);
- return ret;
- }
+ if (ret)
+ return dev_err_probe(&pdev->dev, ret,
+ "failed to register cpufreq cooling device\n");
data->thermal_clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(data->thermal_clk)) {
diff --git a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
index 4f5859d..0966551 100644
--- a/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
+++ b/drivers/thermal/intel/int340x_thermal/int3400_thermal.c
@@ -14,6 +14,7 @@
#define INT3400_THERMAL_TABLE_CHANGED 0x83
#define INT3400_ODVP_CHANGED 0x88
+#define INT3400_KEEP_ALIVE 0xA0
enum int3400_thermal_uuid {
INT3400_THERMAL_PASSIVE_1,
@@ -83,8 +84,33 @@
NULL,
};
+static ssize_t imok_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct int3400_thermal_priv *priv = dev_get_drvdata(dev);
+ acpi_status status;
+ int input, ret;
+
+ ret = kstrtouint(buf, 10, &input);
+ if (ret)
+ return ret;
+ status = acpi_execute_simple_method(priv->adev->handle, "IMOK", input);
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ return count;
+}
+
+static DEVICE_ATTR_WO(imok);
+
+static struct attribute *imok_attr[] = {
+ &dev_attr_imok.attr,
+ NULL
+};
+
static const struct attribute_group data_attribute_group = {
.bin_attrs = data_attributes,
+ .attrs = imok_attr,
};
static ssize_t available_uuids_show(struct device *dev,
@@ -349,30 +375,33 @@
{
struct int3400_thermal_priv *priv = data;
char *thermal_prop[5];
+ int therm_event;
if (!priv)
return;
switch (event) {
case INT3400_THERMAL_TABLE_CHANGED:
- thermal_prop[0] = kasprintf(GFP_KERNEL, "NAME=%s",
- priv->thermal->type);
- thermal_prop[1] = kasprintf(GFP_KERNEL, "TEMP=%d",
- priv->thermal->temperature);
- thermal_prop[2] = kasprintf(GFP_KERNEL, "TRIP=");
- thermal_prop[3] = kasprintf(GFP_KERNEL, "EVENT=%d",
- THERMAL_TABLE_CHANGED);
- thermal_prop[4] = NULL;
- kobject_uevent_env(&priv->thermal->device.kobj, KOBJ_CHANGE,
- thermal_prop);
+ therm_event = THERMAL_TABLE_CHANGED;
+ break;
+ case INT3400_KEEP_ALIVE:
+ therm_event = THERMAL_EVENT_KEEP_ALIVE;
break;
case INT3400_ODVP_CHANGED:
evaluate_odvp(priv);
+ therm_event = THERMAL_DEVICE_POWER_CAPABILITY_CHANGED;
break;
default:
/* Ignore unknown notification codes sent to INT3400 device */
- break;
+ return;
}
+
+ thermal_prop[0] = kasprintf(GFP_KERNEL, "NAME=%s", priv->thermal->type);
+ thermal_prop[1] = kasprintf(GFP_KERNEL, "TEMP=%d", priv->thermal->temperature);
+ thermal_prop[2] = kasprintf(GFP_KERNEL, "TRIP=");
+ thermal_prop[3] = kasprintf(GFP_KERNEL, "EVENT=%d", therm_event);
+ thermal_prop[4] = NULL;
+ kobject_uevent_env(&priv->thermal->device.kobj, KOBJ_CHANGE, thermal_prop);
}
static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 787710b..5c2a13b 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -546,11 +546,11 @@
if (ret < 0)
goto error_unregister;
- if (chip->use_of_thermal)
+ if (chip->use_of_thermal) {
priv->zone = devm_thermal_zone_of_sensor_register(
dev, i, priv,
&rcar_thermal_zone_of_ops);
- else {
+ } else {
priv->zone = thermal_zone_device_register(
"rcar_thermal",
1, 0, priv,
diff --git a/drivers/thermal/st/Kconfig b/drivers/thermal/st/Kconfig
index 3c3b695..58ece38 100644
--- a/drivers/thermal/st/Kconfig
+++ b/drivers/thermal/st/Kconfig
@@ -23,5 +23,5 @@
help
Support for thermal framework on STMicroelectronics STM32 series of
SoCs. This thermal driver allows to access to general thermal framework
- functionalities and to acces to SoC sensor functionalities. This
+ functionalities and to access to SoC sensor functionalities. This
configuration is fully dependent of MACH_STM32MP157.
diff --git a/drivers/thermal/st/stm_thermal.c b/drivers/thermal/st/stm_thermal.c
index 331e2b7..5fd3fb8 100644
--- a/drivers/thermal/st/stm_thermal.c
+++ b/drivers/thermal/st/stm_thermal.c
@@ -446,14 +446,9 @@
#ifdef CONFIG_PM_SLEEP
static int stm_thermal_suspend(struct device *dev)
{
- int ret;
struct stm_thermal_sensor *sensor = dev_get_drvdata(dev);
- ret = stm_thermal_sensor_off(sensor);
- if (ret)
- return ret;
-
- return 0;
+ return stm_thermal_sensor_off(sensor);
}
static int stm_thermal_resume(struct device *dev)
diff --git a/drivers/thermal/sun8i_thermal.c b/drivers/thermal/sun8i_thermal.c
index 74d73be..f8b1307 100644
--- a/drivers/thermal/sun8i_thermal.c
+++ b/drivers/thermal/sun8i_thermal.c
@@ -244,7 +244,7 @@
ft_temp = (caldata[0] & FT_TEMP_MASK) * 100;
for (i = 0; i < tmdev->chip->sensor_num; i++) {
- int sensor_reg = caldata[i + 1];
+ int sensor_reg = caldata[i + 1] & TEMP_CALIB_MASK;
int cdata, offset;
int sensor_temp = tmdev->chip->calc_temp(tmdev, i, sensor_reg);
@@ -590,6 +590,19 @@
.calc_temp = sun8i_ths_calc_temp,
};
+static const struct ths_thermal_chip sun50i_a100_ths = {
+ .sensor_num = 3,
+ .has_bus_clk_reset = true,
+ .ft_deviation = 8000,
+ .offset = 187744,
+ .scale = 672,
+ .temp_data_base = SUN50I_H6_THS_TEMP_DATA,
+ .calibrate = sun50i_h6_ths_calibrate,
+ .init = sun50i_h6_thermal_init,
+ .irq_ack = sun50i_h6_irq_ack,
+ .calc_temp = sun8i_ths_calc_temp,
+};
+
static const struct ths_thermal_chip sun50i_h5_ths = {
.sensor_num = 2,
.has_mod_clk = true,
@@ -619,6 +632,7 @@
{ .compatible = "allwinner,sun8i-h3-ths", .data = &sun8i_h3_ths },
{ .compatible = "allwinner,sun8i-r40-ths", .data = &sun8i_r40_ths },
{ .compatible = "allwinner,sun50i-a64-ths", .data = &sun50i_a64_ths },
+ { .compatible = "allwinner,sun50i-a100-ths", .data = &sun50i_a100_ths },
{ .compatible = "allwinner,sun50i-h5-ths", .data = &sun50i_h5_ths },
{ .compatible = "allwinner,sun50i-h6-ths", .data = &sun50i_h6_ths },
{ /* sentinel */ },
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index a6616e5..c6d74bc 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -603,7 +603,6 @@
/**
* power_actor_get_max_power() - get the maximum power that a cdev can consume
* @cdev: pointer to &thermal_cooling_device
- * @tz: a valid thermal zone device pointer
* @max_power: pointer in which to store the maximum power
*
* Calculate the maximum power consumption in milliwats that the
@@ -613,18 +612,17 @@
* power_actor API or -E* on other error.
*/
int power_actor_get_max_power(struct thermal_cooling_device *cdev,
- struct thermal_zone_device *tz, u32 *max_power)
+ u32 *max_power)
{
if (!cdev_is_power_actor(cdev))
return -EINVAL;
- return cdev->ops->state2power(cdev, tz, 0, max_power);
+ return cdev->ops->state2power(cdev, 0, max_power);
}
/**
* power_actor_get_min_power() - get the mainimum power that a cdev can consume
* @cdev: pointer to &thermal_cooling_device
- * @tz: a valid thermal zone device pointer
* @min_power: pointer in which to store the minimum power
*
* Calculate the minimum power consumption in milliwatts that the
@@ -634,7 +632,7 @@
* power_actor API or -E* on other error.
*/
int power_actor_get_min_power(struct thermal_cooling_device *cdev,
- struct thermal_zone_device *tz, u32 *min_power)
+ u32 *min_power)
{
unsigned long max_state;
int ret;
@@ -646,7 +644,7 @@
if (ret)
return ret;
- return cdev->ops->state2power(cdev, tz, max_state, min_power);
+ return cdev->ops->state2power(cdev, max_state, min_power);
}
/**
@@ -670,7 +668,7 @@
if (!cdev_is_power_actor(cdev))
return -EINVAL;
- ret = cdev->ops->power2state(cdev, instance->tz, power, &state);
+ ret = cdev->ops->power2state(cdev, power, &state);
if (ret)
return ret;
@@ -1652,7 +1650,6 @@
if (result)
goto error;
- mutex_init(&poweroff_lock);
result = thermal_register_governors();
if (result)
goto error;
diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index e00fc55..764c2de 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -66,9 +66,9 @@
}
int power_actor_get_max_power(struct thermal_cooling_device *cdev,
- struct thermal_zone_device *tz, u32 *max_power);
+ u32 *max_power);
int power_actor_get_min_power(struct thermal_cooling_device *cdev,
- struct thermal_zone_device *tz, u32 *min_power);
+ u32 *min_power);
int power_actor_set_power(struct thermal_cooling_device *cdev,
struct thermal_instance *ti, u32 power);
/**
diff --git a/drivers/thermal/thermal_netlink.c b/drivers/thermal/thermal_netlink.c
index da2891f..1234dbe 100644
--- a/drivers/thermal/thermal_netlink.c
+++ b/drivers/thermal/thermal_netlink.c
@@ -78,7 +78,7 @@
hdr = genlmsg_put(skb, 0, 0, &thermal_gnl_family, 0,
THERMAL_GENL_SAMPLING_TEMP);
if (!hdr)
- return -EMSGSIZE;
+ goto out_free;
if (nla_put_u32(skb, THERMAL_GENL_ATTR_TZ_ID, id))
goto out_cancel;
@@ -93,6 +93,7 @@
return 0;
out_cancel:
genlmsg_cancel(skb, hdr);
+out_free:
nlmsg_free(skb);
return -EMSGSIZE;
diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index 8c23121..a6f371f 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -448,7 +448,7 @@
struct attribute *attr,
int attrno)
{
- struct device *dev = container_of(kobj, struct device, kobj);
+ struct device *dev = kobj_to_dev(kobj);
struct thermal_zone_device *tz;
enum thermal_trip_type trip_type;
int count, passive = 0;
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index ab19cef..5e59616 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -25,10 +25,20 @@
#include <linux/of_platform.h>
#include <linux/of_irq.h>
#include <linux/io.h>
+#include <linux/cpu_pm.h>
+#include <linux/device.h>
+#include <linux/pm_runtime.h>
+#include <linux/pm.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
#include "ti-bandgap.h"
static int ti_bandgap_force_single_read(struct ti_bandgap *bgp, int id);
+#ifdef CONFIG_PM_SLEEP
+static int bandgap_omap_cpu_notifier(struct notifier_block *nb,
+ unsigned long cmd, void *v);
+#endif
/*** Helper functions to access registers and their bitfields ***/
@@ -1008,6 +1018,11 @@
}
}
+#ifdef CONFIG_PM_SLEEP
+ bgp->nb.notifier_call = bandgap_omap_cpu_notifier;
+ cpu_pm_register_notifier(&bgp->nb);
+#endif
+
return 0;
remove_last_cooling:
@@ -1041,7 +1056,9 @@
struct ti_bandgap *bgp = platform_get_drvdata(pdev);
int i;
- /* First thing is to remove sensor interfaces */
+ cpu_pm_unregister_notifier(&bgp->nb);
+
+ /* Remove sensor interfaces */
for (i = 0; i < bgp->conf->sensor_count; i++) {
if (bgp->conf->sensors[i].unregister_cooling)
bgp->conf->sensors[i].unregister_cooling(bgp, i);
@@ -1150,9 +1167,43 @@
if (TI_BANDGAP_HAS(bgp, CLK_CTRL))
clk_disable_unprepare(bgp->fclock);
+ bgp->is_suspended = true;
+
return err;
}
+static int bandgap_omap_cpu_notifier(struct notifier_block *nb,
+ unsigned long cmd, void *v)
+{
+ struct ti_bandgap *bgp;
+
+ bgp = container_of(nb, struct ti_bandgap, nb);
+
+ spin_lock(&bgp->lock);
+ switch (cmd) {
+ case CPU_CLUSTER_PM_ENTER:
+ if (bgp->is_suspended)
+ break;
+ ti_bandgap_save_ctxt(bgp);
+ ti_bandgap_power(bgp, false);
+ if (TI_BANDGAP_HAS(bgp, CLK_CTRL))
+ clk_disable(bgp->fclock);
+ break;
+ case CPU_CLUSTER_PM_ENTER_FAILED:
+ case CPU_CLUSTER_PM_EXIT:
+ if (bgp->is_suspended)
+ break;
+ if (TI_BANDGAP_HAS(bgp, CLK_CTRL))
+ clk_enable(bgp->fclock);
+ ti_bandgap_power(bgp, true);
+ ti_bandgap_restore_ctxt(bgp);
+ break;
+ }
+ spin_unlock(&bgp->lock);
+
+ return NOTIFY_OK;
+}
+
static int ti_bandgap_resume(struct device *dev)
{
struct ti_bandgap *bgp = dev_get_drvdata(dev);
@@ -1161,6 +1212,7 @@
clk_prepare_enable(bgp->fclock);
ti_bandgap_power(bgp, true);
+ bgp->is_suspended = false;
return ti_bandgap_restore_ctxt(bgp);
}
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.h b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
index fce4657..ed0ea4b 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.h
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
@@ -12,6 +12,10 @@
#include <linux/spinlock.h>
#include <linux/types.h>
#include <linux/err.h>
+#include <linux/cpu_pm.h>
+#include <linux/device.h>
+#include <linux/pm_runtime.h>
+#include <linux/pm.h>
struct gpio_desc;
@@ -203,6 +207,8 @@
int irq;
struct gpio_desc *tshut_gpiod;
u32 clk_rate;
+ struct notifier_block nb;
+ unsigned int is_suspended:1;
};
/**
diff --git a/include/linux/idle_inject.h b/include/linux/idle_inject.h
index 91a8612..fb88e23 100644
--- a/include/linux/idle_inject.h
+++ b/include/linux/idle_inject.h
@@ -28,6 +28,6 @@
unsigned int *idle_duration_us);
void idle_inject_set_latency(struct idle_inject_device *ii_dev,
- unsigned int latency_ns);
+ unsigned int latency_us);
#endif /* __IDLE_INJECT_H__ */
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index 42ef807..d07ea27 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -55,6 +55,7 @@
THERMAL_DEVICE_UP, /* Thermal device is up after a down event */
THERMAL_DEVICE_POWER_CAPABILITY_CHANGED, /* power capability changed */
THERMAL_TABLE_CHANGED, /* Thermal table(s) changed */
+ THERMAL_EVENT_KEEP_ALIVE, /* Request for user space handler to respond */
};
struct thermal_zone_device_ops {
@@ -84,12 +85,9 @@
int (*get_max_state) (struct thermal_cooling_device *, unsigned long *);
int (*get_cur_state) (struct thermal_cooling_device *, unsigned long *);
int (*set_cur_state) (struct thermal_cooling_device *, unsigned long);
- int (*get_requested_power)(struct thermal_cooling_device *,
- struct thermal_zone_device *, u32 *);
- int (*state2power)(struct thermal_cooling_device *,
- struct thermal_zone_device *, unsigned long, u32 *);
- int (*power2state)(struct thermal_cooling_device *,
- struct thermal_zone_device *, u32, unsigned long *);
+ int (*get_requested_power)(struct thermal_cooling_device *, u32 *);
+ int (*state2power)(struct thermal_cooling_device *, unsigned long, u32 *);
+ int (*power2state)(struct thermal_cooling_device *, u32, unsigned long *);
};
struct thermal_cooling_device {
