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 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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