gpiolib: constify passed device_node pointer
authorKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Wed, 28 Jul 2021 14:42:28 +0000 (16:42 +0200)
committerBartosz Golaszewski <bgolaszewski@baylibre.com>
Thu, 5 Aug 2021 19:21:58 +0000 (21:21 +0200)
commite6ae9a833ef4043b940954b8dcac31493706b9d6
tree60a299b7d175676a47d8d000818dd68d5235b991
parenta065d5615fc83908ef21ed8159ffb63d816ff5de
gpiolib: constify passed device_node pointer

Several gpiolib functions receive pointer to struct device_node which is
later passed to OF functions.  These OF functions accept already pointer
to const, so gpiolib can follow similar approach to indicate they are
not modifying the struct device_node.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
drivers/gpio/gpiolib-devres.c
drivers/gpio/gpiolib-of.c
include/linux/gpio/consumer.h
include/linux/of_gpio.h