rtc: v3020: constify v3020_chip_ops structures

---
 drivers/rtc/rtc-v3020.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
 
diff --git a/drivers/rtc/rtc-v3020.c b/drivers/rtc/rtc-v3020.c
index f9f9709..7a04363 100644
--- a/drivers/rtc/rtc-v3020.c
+++ b/drivers/rtc/rtc-v3020.c
@@ -57,7 +57,7 @@ struct v3020 {
 	/* GPIO access */
 	struct gpio *gpio;
 
-	struct v3020_chip_ops *ops;
+	const struct v3020_chip_ops *ops;
 
 	struct rtc_device *rtc;
 };
@@ -95,7 +95,7 @@ static unsigned char v3020_mmio_read_bit(struct v3020 *chip)
 	return !!(readl(chip->ioaddress) & (1 << chip->leftshift));
 }
 
-static struct v3020_chip_ops v3020_mmio_ops = {
+static const struct v3020_chip_ops v3020_mmio_ops = {
 	.map_io		= v3020_mmio_map,
 	.unmap_io	= v3020_mmio_unmap,
 	.read_bit	= v3020_mmio_read_bit,
@@ -158,7 +158,7 @@ static unsigned char v3020_gpio_read_bit(struct v3020 *chip)
 	return bit;
 }
 
-static struct v3020_chip_ops v3020_gpio_ops = {
+static const struct v3020_chip_ops v3020_gpio_ops = {
 	.map_io		= v3020_gpio_map,
 	.unmap_io	= v3020_gpio_unmap,
 	.read_bit	= v3020_gpio_read_bit,