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thermal_hwmon: Add devres wrapper for thermal_add_hwmon_sysfs() 

Add devres wrapper for thermal_add_hwmon_sysfs() to simplify driver
code.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Tested-by: Lucas Stach <l.stach@pengutronix.de>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Angus Ainslie (Purism) <angus@akkea.ca>
Cc: linux-imx@nxp.com
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191210164153.10463-12-andrew.smirnov@gmail.com
This commit is contained in:
Andrey Smirnov 2019-12-10 08:41:52 -08:00 committed by Daniel Lezcano
parent 36564d7e53
commit c7fc403e40
2 changed files with 35 additions and 0 deletions
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28
drivers/thermal/thermal_hwmon.c
View File

@ -248,3 +248,31 @@ void thermal_remove_hwmon_sysfs(struct thermal_zone_device *tz)
kfree(hwmon);
}
EXPORT_SYMBOL_GPL(thermal_remove_hwmon_sysfs);
static void devm_thermal_hwmon_release(struct device *dev, void *res)
{
thermal_remove_hwmon_sysfs(*(struct thermal_zone_device **)res);
}
int devm_thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
{
struct thermal_zone_device **ptr;
int ret;
ptr = devres_alloc(devm_thermal_hwmon_release, sizeof(*ptr),
GFP_KERNEL);
if (!ptr)
return -ENOMEM;
ret = thermal_add_hwmon_sysfs(tz);
if (ret) {
devres_free(ptr);
return ret;
}
*ptr = tz;
devres_add(&tz->device, ptr);
return ret;
}
EXPORT_SYMBOL_GPL(devm_thermal_add_hwmon_sysfs);

7
drivers/thermal/thermal_hwmon.h
View File

@ -17,6 +17,7 @@
#ifdef CONFIG_THERMAL_HWMON
int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz);
int devm_thermal_add_hwmon_sysfs(struct thermal_zone_device *tz);
void thermal_remove_hwmon_sysfs(struct thermal_zone_device *tz);
#else
static inline int
@ -25,6 +26,12 @@ thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
return 0;
}
static inline int
devm_thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
{
return 0;
}
static inline void
thermal_remove_hwmon_sysfs(struct thermal_zone_device *tz)
{