This is a note to let you know that I've just added the patch titled
gpio: pca953x: disable regmap locking for automatic address incrementing
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
gpio-pca953x-disable-regmap-locking-for-automatic-address-incrementing.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ec3decd21380081e3b5de4ba8d85d90a95f201a0 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date: Fri, 5 Jun 2020 16:40:36 +0300
Subject: gpio: pca953x: disable regmap locking for automatic address incrementing
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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,
};
Patches currently in stable-queue which might be from andriy.shevchenko@xxxxxxxxxxxxxxx are
queue-5.4/dmaengine-dw-initialize-channel-before-each-transfer.patch
queue-5.4/intel_th-fix-a-null-dereference-when-hub-driver-is-not-loaded.patch
queue-5.4/gpio-pca953x-disable-regmap-locking-for-automatic-address-incrementing.patch
queue-5.4/intel_th-pci-add-jasper-lake-cpu-support.patch
queue-5.4/intel_th-pci-add-emmitsburg-pch-support.patch
queue-5.4/i2c-eg20t-load-module-automatically-if-id-matches.patch
queue-5.4/intel_th-pci-add-tiger-lake-pch-h-support.patch
