diff options
| author | Nícolas F. R. A. Prado <nfraprado@collabora.com> | 2025-01-13 16:27:12 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-20 11:18:28 +0300 |
| commit | cb3bf41da561bc693a9890c57c5a042b84a6daa7 (patch) | |
| tree | 078d8ffea5cc7d4af0e4a711aa8f4452feb59f48 /rust/helpers/build_bug.c | |
| parent | eb06ba9aecba1b22949ee97a403a2c2c28bf20c3 (diff) | |
| download | linux-cb3bf41da561bc693a9890c57c5a042b84a6daa7.tar.xz | |
thermal/drivers/mediatek/lvts: Disable monitor mode during suspend
commit 65594b3745024857f812145a58db3601d733676c upstream.
When configured in filtered mode, the LVTS thermal controller will
monitor the temperature from the sensors and trigger an interrupt once a
thermal threshold is crossed.
Currently this is true even during suspend and resume. The problem with
that is that when enabling the internal clock of the LVTS controller in
lvts_ctrl_set_enable() during resume, the temperature reading can glitch
and appear much higher than the real one, resulting in a spurious
interrupt getting generated.
Disable the temperature monitoring and give some time for the signals to
stabilize during suspend in order to prevent such spurious interrupts.
Cc: stable@vger.kernel.org
Reported-by: Hsin-Te Yuan <yuanhsinte@chromium.org>
Closes: https://lore.kernel.org/all/20241108-lvts-v1-1-eee339c6ca20@chromium.org/
Fixes: 8137bb90600d ("thermal/drivers/mediatek/lvts_thermal: Add suspend and resume")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20250113-mt8192-lvts-filtered-suspend-fix-v2-1-07a25200c7c6@collabora.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'rust/helpers/build_bug.c')
0 files changed, 0 insertions, 0 deletions