From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
commit ec3decd21380081e3b5de4ba8d85d90a95f201a0 upstream.
It's a repetition of the commit aa58a21ae378
("gpio: pca953x: disable regmap locking")
which states the following:
This driver uses its own locking but regmap silently uses
a mutex for all operations too. Add the option to disable
locking to the regmap config struct.
Fixes: bcf41dc480b1 ("gpio: pca953x: fix handling of automatic address incrementing")
Cc: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpio/gpio-pca953x.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -398,6 +398,7 @@ static const struct regmap_config pca953
.writeable_reg = pca953x_writeable_register,
.volatile_reg = pca953x_volatile_register,
+ .disable_locking = true,
.cache_type = REGCACHE_RBTREE,
.max_register = 0x7f,
};
