On Fri, 2018-02-02 at 16:17 -0200, Fabio Estevam wrote:
> From: Mikhail Lappo <mikhail.lappo@xxxxxxxxxxx>
>
> When device boots with T > T_trip_1 and requests interrupt,
> the race condition takes place. The interrupt comes before
> THERMAL_DEVICE_ENABLED is set. This leads to an attempt to
> reading sensor value from irq and disabling the sensor, based on
> the data->mode field, which expected to be THERMAL_DEVICE_ENABLED,
> but still stays as THERMAL_DEVICE_DISABLED. Afher this issue
> sensor is never re-enabled, as the driver state is wrong.
>
> Fix this problem by setting the 'data' members prior to
> requesting the interrupts.
>
> Fixes: 37713a1e8e4c ("thermal: imx: implement thermal alarm interrupt handling")
> Cc: <stable@xxxxxxxxxxxxxxx>
> Signed-off-by: Mikhail Lappo <mikhail.lappo@xxxxxxxxxxx>
> Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxx>
Reviewed-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
regards
Philipp