diff options
| author | Andrzej Pietrasiewicz <andrzej.p@collabora.com> | 2020-06-29 15:29:23 +0300 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2020-06-29 21:26:38 +0300 |
| commit | b56bdff78e0b65fd2b2ed8eba4c645a7f71ba652 (patch) | |
| tree | 1022affd6100a011a740978ca0b52d018044e692 /drivers/thermal/thermal_core.c | |
| parent | bbcf90c0646ac797700269fa6645a6a46466c79f (diff) | |
| download | linux-b56bdff78e0b65fd2b2ed8eba4c645a7f71ba652.tar.xz | |
thermal: core: Stop polling DISABLED thermal devices
Polling DISABLED devices is not desired, as all such "disabled" devices
are meant to be handled by userspace. This patch introduces and uses
should_stop_polling() to decide whether the device should be polled or not.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629122925.21729-10-andrzej.p@collabora.com
Diffstat (limited to 'drivers/thermal/thermal_core.c')
| -rw-r--r-- | drivers/thermal/thermal_core.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 52d136780577..e613f5c07bad 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -301,13 +301,22 @@ static void thermal_zone_device_set_polling(struct thermal_zone_device *tz, cancel_delayed_work(&tz->poll_queue); } +static inline bool should_stop_polling(struct thermal_zone_device *tz) +{ + return !thermal_zone_device_is_enabled(tz); +} + static void monitor_thermal_zone(struct thermal_zone_device *tz) { + bool stop; + + stop = should_stop_polling(tz); + mutex_lock(&tz->lock); - if (tz->passive) + if (!stop && tz->passive) thermal_zone_device_set_polling(tz, tz->passive_delay); - else if (tz->polling_delay) + else if (!stop && tz->polling_delay) thermal_zone_device_set_polling(tz, tz->polling_delay); else thermal_zone_device_set_polling(tz, 0); @@ -517,6 +526,9 @@ void thermal_zone_device_update(struct thermal_zone_device *tz, { int count; + if (should_stop_polling(tz)) + return; + if (atomic_read(&in_suspend)) return; |