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| author | Dmitry Osipenko <digetx@gmail.com> | 2020-09-02 17:18:43 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-09-02 21:53:27 +0300 |
| commit | 21f8e4828c44da39b0670c5d99d5728b739542a1 (patch) | |
| tree | a9343b0f35521b63cb1c37dcc7e938957af4f1f2 /drivers/base/regmap/internal.h | |
| parent | d17343b87da422a59d99a3ed130573dbeb96c582 (diff) | |
| download | linux-21f8e4828c44da39b0670c5d99d5728b739542a1.tar.xz | |
regmap: Add can_sleep configuration option
Regmap can't sleep if spinlock is used for the locking protection.
This patch fixes regression caused by a previous commit that switched
regmap to use fsleep() and this broke Amlogic S922X platform.
This patch adds new configuration option for regmap users, allowing to
specify whether regmap operations can sleep and assuming that sleep is
allowed if mutex is used for the regmap locking protection.
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: 2b32d2f7ce0a ("regmap: Use flexible sleep")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20200902141843.6591-1-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/base/regmap/internal.h')
| -rw-r--r-- | drivers/base/regmap/internal.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index 3d80c4b43f72..8a59359e145f 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -161,6 +161,9 @@ struct regmap { void *selector_work_buf; /* Scratch buffer used for selector */ struct hwspinlock *hwlock; + + /* if set, the regmap core can sleep */ + bool can_sleep; }; struct regcache_ops { |