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authorAndrzej Pietrasiewicz <andrzej.p@collabora.com>2020-06-29 15:29:21 +0300
committerDaniel Lezcano <daniel.lezcano@linaro.org>2020-06-29 21:26:36 +0300
commit7f4957be0d5b83c8964491863202136c916107ae (patch)
tree5d3f46b069347b04ff78eb0c073e994efbb20047 /drivers/acpi/thermal.c
parentac5d9ecc74d8beee8c87f1441e4adaf4e9fe90c5 (diff)
downloadlinux-7f4957be0d5b83c8964491863202136c916107ae.tar.xz
thermal: Use mode helpers in drivers
Use thermal_zone_device_{en|dis}able() and thermal_zone_device_is_enabled(). Consequently, all set_mode() implementations in drivers: - can stop modifying tzd's "mode" member, - shall stop taking tzd's lock, as it is taken in the helpers - shall stop calling thermal_zone_device_update() as it is called in the helpers - can assume they are called when the mode truly changes, so checks to verify that can be dropped Not providing set_mode() by a driver no longer prevents the core from being able to set tzd's mode, so the relevant check in mode_store() is removed. Other comments: - acpi/thermal.c: tz->thermal_zone->mode will be updated only after we return from set_mode(), so use function parameter in thermal_set_mode() instead, no need to call acpi_thermal_check() in set_mode() - thermal/imx_thermal.c: regmap writes and mode assignment are done in thermal_zone_device_{en|dis}able() and set_mode() callback - thermal/intel/intel_quark_dts_thermal.c: soc_dts_{en|dis}able() are a part of set_mode() callback, so they don't need to modify tzd->mode, and don't need to fall back to the opposite mode if unsuccessful, as the return value will be propagated to thermal_zone_device_{en|dis}able() and ultimately tzd's member will not be changed in thermal_zone_device_set_mode(). - thermal/of-thermal.c: no need to set zone->mode to DISABLED in of_parse_thermal_zones() as a tzd is kzalloc'ed so mode is DISABLED anyway Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> [for acerhdf] Acked-by: Peter Kaestle <peter@piie.net> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200629122925.21729-8-andrzej.p@collabora.com
Diffstat (limited to 'drivers/acpi/thermal.c')
-rw-r--r--drivers/acpi/thermal.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 592be97c4456..52b6cda1bcc3 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -499,7 +499,7 @@ static void acpi_thermal_check(void *data)
{
struct acpi_thermal *tz = data;
- if (tz->thermal_zone->mode != THERMAL_DEVICE_ENABLED)
+ if (!thermal_zone_device_is_enabled(tz->thermal_zone))
return;
thermal_zone_device_update(tz->thermal_zone,
@@ -542,14 +542,11 @@ static int thermal_set_mode(struct thermal_zone_device *thermal,
if (mode == THERMAL_DEVICE_DISABLED)
pr_warn("thermal zone will be disabled\n");
- if (mode != tz->thermal_zone->mode) {
- tz->thermal_zone->mode = mode;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "%s kernel ACPI thermal control\n",
- tz->thermal_zone->mode == THERMAL_DEVICE_ENABLED ?
- "Enable" : "Disable"));
- acpi_thermal_check(tz);
- }
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "%s kernel ACPI thermal control\n",
+ mode == THERMAL_DEVICE_ENABLED ?
+ "Enable" : "Disable"));
+
return 0;
}
@@ -897,13 +894,17 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
goto remove_dev_link;
}
- tz->thermal_zone->mode = THERMAL_DEVICE_ENABLED;
+ result = thermal_zone_device_enable(tz->thermal_zone);
+ if (result)
+ goto acpi_bus_detach;
dev_info(&tz->device->dev, "registered as thermal_zone%d\n",
tz->thermal_zone->id);
return 0;
+acpi_bus_detach:
+ acpi_bus_detach_private_data(tz->device->handle);
remove_dev_link:
sysfs_remove_link(&tz->thermal_zone->device.kobj, "device");
remove_tz_link: