Tzung-Bi Shih 56ab29ec6f pinctrl: mediatek: use spin lock in mtk_rmw ...

Commit 42a46434e9 ("pinctrl: add lock in mtk_rmw function.") uses
mutex lock in mtk_rmw.  However the function is possible called from
atomic context.

For example call trace:
  mutex_lock+0x28/0x64
  mtk_rmw+0x38/0x80
  [snip]
  max98357a_daiops_trigger+0x8c/0x9c
  soc_pcm_trigger+0x5c/0x10c

The max98357a_daiops_trigger() could run in either atomic or non-atomic
context.  As a result, dmesg shows some similar messages: "BUG: sleeping
function called from invalid context at kernel/locking/mutex.c:254".

Uses spin lock in mtk_rmw instead.

Fixes: 42a46434e9 ("pinctrl: add lock in mtk_rmw function.")
Signed-off-by: Tzung-Bi Shih <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Linus Walleij <[email protected]>

2021-04-22 01:53:29 +02:00

..

Kconfig

pinctrl: add pinctrl driver on mt8195

2021-04-22 01:53:02 +02:00

Makefile

pinctrl: add pinctrl driver on mt8195

2021-04-22 01:53:02 +02:00

mtk-eint.c

pinctrl: mediatek: Fix trigger type setting follow for unexpected interrupt

2021-02-15 05:52:01 +01:00

mtk-eint.h

…

pinctrl-moore.c

pinctrl: mediatek: use spin lock in mtk_rmw

2021-04-22 01:53:29 +02:00

pinctrl-moore.h

…

pinctrl-mt2701.c

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pinctrl-mt2712.c

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pinctrl-mt6397.c

…

pinctrl-mt6765.c

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pinctrl-mt6779.c

pinctrl: mediatek: add mt6779 eint support

2020-08-04 01:29:10 +02:00

pinctrl-mt6797.c

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pinctrl-mt7622.c

pinctrl: mt7622: drop pwm ch7 as mt7622 only has 6 channels

2020-11-10 14:58:14 +01:00

pinctrl-mt7623.c

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pinctrl-mt7629.c

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pinctrl-mt8127.c

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pinctrl-mt8135.c

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pinctrl-mt8167.c

pinctrl: mediatek: Add MT8167 Pinctrl driver

2020-09-27 11:20:09 +02:00

pinctrl-mt8173.c

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pinctrl-mt8183.c

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pinctrl-mt8192.c

pinctrl: mediatek: Add pinctrl driver for mt8192

2020-08-27 10:50:57 +02:00

pinctrl-mt8195.c

pinctrl: add drive for I2C related pins on MT8195

2021-04-22 01:53:02 +02:00

pinctrl-mt8516.c

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pinctrl-mtk-common-v2.c

pinctrl: mediatek: use spin lock in mtk_rmw

2021-04-22 01:53:29 +02:00

pinctrl-mtk-common-v2.h

pinctrl: mediatek: use spin lock in mtk_rmw

2021-04-22 01:53:29 +02:00

pinctrl-mtk-common.c

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pinctrl-mtk-common.h

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pinctrl-mtk-mt2701.h

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pinctrl-mtk-mt2712.h

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pinctrl-mtk-mt6397.h

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pinctrl-mtk-mt6765.h

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pinctrl-mtk-mt6779.h

pinctrl: mediatek: add pinctrl support for MT6779 SoC

2020-08-04 01:29:09 +02:00

pinctrl-mtk-mt6797.h

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pinctrl-mtk-mt8127.h

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pinctrl-mtk-mt8135.h

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pinctrl-mtk-mt8167.h

pinctrl: mediatek: Add MT8167 Pinctrl driver

2020-09-27 11:20:09 +02:00

pinctrl-mtk-mt8173.h

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pinctrl-mtk-mt8183.h

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pinctrl-mtk-mt8192.h

pinctrl: mediatek: Add pinctrl driver for mt8192

2020-08-27 10:50:57 +02:00

pinctrl-mtk-mt8195.h

pinctrl: add pinctrl driver on mt8195

2021-04-22 01:53:02 +02:00

pinctrl-mtk-mt8516.h

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pinctrl-paris.c

pinctrl: mediatek: use spin lock in mtk_rmw

2021-04-22 01:53:29 +02:00

pinctrl-paris.h

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