[PATCH] gpio: madera: Add missing const

[Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>]

madera_gpio_chip is only used as a template so it can be marked as const.

Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>
---
 drivers/gpio/gpio-madera.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-madera.c b/drivers/gpio/gpio-madera.c
index 7ba68d1a09324..c9dad0543672a 100644
--- a/drivers/gpio/gpio-madera.c
+++ b/drivers/gpio/gpio-madera.c
@@ -107,7 +107,7 @@ static void madera_gpio_set(struct gpio_chip *chip, unsigned int offset,
 			 MADERA_GPIO1_CTRL_1 + reg_offset, ret);
 }
 
-static struct gpio_chip madera_gpio_chip = {
+static const struct gpio_chip madera_gpio_chip = {
 	.label			= "madera",
 	.owner			= THIS_MODULE,
 	.request		= gpiochip_generic_request,
-- 
2.11.0