rtc: sunxi: constify the data_year_param structure

The data_year_param struct is never modified, so lets constify it.
This permit to remove cast since of_device_id is const also.

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

diff --git a/drivers/rtc/rtc-sunxi.c b/drivers/rtc/rtc-sunxi.c
index b4f35acc1e12d29b463704b7dc365522de0d1fa1..0c08a5b7dc612b9e396613947027a0e3ac67e635 100644 (file)
--- a/drivers/rtc/rtc-sunxi.c
+++ b/drivers/rtc/rtc-sunxi.c
@@ -133,7 +133,7 @@ struct sunxi_rtc_data_year {
        unsigned char leap_shift;       /* bit shift to get the leap year */
 };
 
-static struct sunxi_rtc_data_year data_year_param[] = {
+static const struct sunxi_rtc_data_year data_year_param[] = {
        [0] = {
                .min            = 2010,
                .max            = 2073,
@@ -151,7 +151,7 @@ static struct sunxi_rtc_data_year data_year_param[] = {
 struct sunxi_rtc_dev {
        struct rtc_device *rtc;
        struct device *dev;
-       struct sunxi_rtc_data_year *data_year;
+       const struct sunxi_rtc_data_year *data_year;
        void __iomem *base;
        int irq;
 };
@@ -468,7 +468,7 @@ static int sunxi_rtc_probe(struct platform_device *pdev)
                dev_err(&pdev->dev, "Unable to setup RTC data\n");
                return -ENODEV;
        }
-       chip->data_year = (struct sunxi_rtc_data_year *) of_id->data;
+       chip->data_year = of_id->data;
 
        /* clear the alarm count value */
        writel(0, chip->base + SUNXI_ALRM_DHMS);