Messages in this thread | | | Date | Wed, 29 Dec 2021 12:22:54 +0530 | Subject | Re: [PATCH] thermal/core: Clear all mitigation when thermal zone is disabled | From | Manaf Meethalavalappu Pallikunhi <> |
| |
On 12/23/2021 8:22 PM, Matthias Kaehlcke wrote: > On Tue, Dec 21, 2021 at 04:11:58PM +0530, Manaf Meethalavalappu Pallikunhi wrote: >> Whenever a thermal zone is in trip violated state, there is a chance >> that the same thermal zone mode can be disabled either via thermal >> core API or via thermal zone sysfs. Once it is disabled, the framework >> bails out any re-evaluation of thermal zone. It leads to a case where >> if it is already in mitigation state, it will stay the same state >> until it is re-enabled. >> >> To avoid above mentioned issue, on thermal zone disable request >> reset thermal zone and clear mitigation for each trip explicitly. >> >> Signed-off-by: Manaf Meethalavalappu Pallikunhi <quic_manafm@quicinc.com> >> --- >> drivers/thermal/thermal_core.c | 9 ++++++++- >> 1 file changed, 8 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c >> index 51374f4..a8ae340 100644 >> --- a/drivers/thermal/thermal_core.c >> +++ b/drivers/thermal/thermal_core.c >> @@ -427,6 +427,7 @@ static int thermal_zone_device_set_mode(struct thermal_zone_device *tz, >> enum thermal_device_mode mode) >> { >> int ret = 0; >> + int count; >> >> mutex_lock(&tz->lock); >> >> @@ -449,8 +450,14 @@ static int thermal_zone_device_set_mode(struct thermal_zone_device *tz, >> >> if (mode == THERMAL_DEVICE_ENABLED) >> thermal_notify_tz_enable(tz->id); >> - else >> + else { >> + /* make sure all previous throttlings are cleared */ >> + thermal_zone_device_init(tz); >> + for (count = 0; count < tz->trips; count++) >> + handle_thermal_trip(tz, count); > nit: s/count/trip/ Updated in V2
| |