Because several drivers do the following pattern: .set_mode() ... local_data->mode = new_mode; thermal_zone_device_update(tz); makes sense to simply do the thermal_zone_device_update() in thermal core, after setting the new mode. Also, this patch also remove deadlocks on drivers that call thermal_zone_device_update() on .set_mode(), as .set_mode() is now called always with tz->lock held. Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx> Cc: Len Brown <lenb@xxxxxxxxxx> Cc: linux-acpi@xxxxxxxxxxxxxxx Cc: "Lee, Chun-Yi" <jlee@xxxxxxxx> Cc: Darren Hart <dvhart@xxxxxxxxxxxxx> Cc: Zhang Rui <rui.zhang@xxxxxxxxx> Cc: Keerthy <j-keerthy@xxxxxx> Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: linux-omap@xxxxxxxxxxxxxxx Cc: platform-driver-x86@xxxxxxxxxxxxxxx Cc: linux-pm@xxxxxxxxxxxxxxx Signed-off-by: Eduardo Valentin <edubezval@xxxxxxxxx> --- Hey, V2--> V3: Remove locking from OF thermal set mode. The locking is done from thermal core already. BR, Eduardo drivers/acpi/thermal.c | 2 -- drivers/platform/x86/acerhdf.c | 1 - drivers/thermal/imx_thermal.c | 1 - drivers/thermal/of-thermal.c | 5 ----- drivers/thermal/thermal_sysfs.c | 1 + drivers/thermal/ti-soc-thermal/ti-thermal-common.c | 1 - 6 files changed, 1 insertion(+), 10 deletions(-) diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 82707f9..8582b88 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -519,8 +519,6 @@ static void acpi_thermal_check(void *data) if (!tz->tz_enabled) return; - - thermal_zone_device_update(tz->thermal_zone); } /* sys I/F for generic thermal sysfs support */ diff --git a/drivers/platform/x86/acerhdf.c b/drivers/platform/x86/acerhdf.c index 460fa67..aee33ba 100644 --- a/drivers/platform/x86/acerhdf.c +++ b/drivers/platform/x86/acerhdf.c @@ -405,7 +405,6 @@ static inline void acerhdf_enable_kernelmode(void) kernelmode = 1; thz_dev->polling_delay = interval*1000; - thermal_zone_device_update(thz_dev); pr_notice("kernel mode fan control ON\n"); } diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c index c5547bd..a413eb6 100644 --- a/drivers/thermal/imx_thermal.c +++ b/drivers/thermal/imx_thermal.c @@ -246,7 +246,6 @@ static int imx_set_mode(struct thermal_zone_device *tz, } data->mode = mode; - thermal_zone_device_update(tz); return 0; } diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index b8e509c..95c47da 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -282,17 +282,12 @@ static int of_thermal_set_mode(struct thermal_zone_device *tz, { struct __thermal_zone *data = tz->devdata; - mutex_lock(&tz->lock); - if (mode == THERMAL_DEVICE_ENABLED) tz->polling_delay = data->polling_delay; else tz->polling_delay = 0; - mutex_unlock(&tz->lock); - data->mode = mode; - thermal_zone_device_update(tz); return 0; } diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c index 743df50..3d0dc30 100644 --- a/drivers/thermal/thermal_sysfs.c +++ b/drivers/thermal/thermal_sysfs.c @@ -100,6 +100,7 @@ mode_store(struct device *dev, struct device_attribute *attr, mutex_lock(&tz->lock); result = tz->ops->set_mode(tz, mode); mutex_unlock(&tz->lock); + thermal_zone_device_update(tz); if (result) return result; diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c index 15c0a9a..9a5a3a3 100644 --- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c +++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c @@ -205,7 +205,6 @@ static int ti_thermal_set_mode(struct thermal_zone_device *thermal, data->mode = mode; ti_bandgap_write_update_interval(bgp, data->sensor_id, data->ti_thermal->polling_delay); - thermal_zone_device_update(data->ti_thermal); dev_dbg(&thermal->device, "thermal polling set for duration=%d msec\n", data->ti_thermal->polling_delay); -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html