gpio: constify the data parameter to gpiochip_find()

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/of/gpio.c b/drivers/of/gpio.c
index e034b38590a8..bba81216b4db 100644
--- a/drivers/of/gpio.c
+++ b/drivers/of/gpio.c
@@ -229,7 +229,7 @@ void of_gpiochip_remove(struct gpio_chip *chip)
 }
 
 /* Private function for resolving node pointer to gpio_chip */
-static int of_gpiochip_is_match(struct gpio_chip *chip, void *data)
+static int of_gpiochip_is_match(struct gpio_chip *chip, const void *data)
 {
         return chip->of_node == data;
 }