drivers/rtc/rtc-s3c.c: add placeholder for driver private data

Driver data field is a pointer, hence assigning that to an integer results
in compilation warnings.

Fixes following compilation warnings:

  drivers/rtc/rtc-s3c.c: In function `s3c_rtc_get_driver_data':
  drivers/rtc/rtc-s3c.c:452:3: warning: return makes integer from pointer without a cast [enabled by default]
  drivers/rtc/rtc-s3c.c: At top level:
  drivers/rtc/rtc-s3c.c:674:3: warning: initialization makes pointer from integer without a cast [enabled by default]
  drivers/rtc/rtc-s3c.c:674:3: warning: (near initialization for `s3c_rtc_dt_match[1].data') [enabled by default]
  drivers/rtc/rtc-s3c.c:677:3: warning: initialization makes pointer from integer without a cast [enabled by default]
  drivers/rtc/rtc-s3c.c:677:3: warning: (near initialization for `s3c_rtc_dt_match[2].data') [enabled by default]
  drivers/rtc/rtc-s3c.c:680:3: warning: initialization makes pointer from integer without a cast [enabled by default]
  drivers/rtc/rtc-s3c.c:680:3: warning: (near initialization for `s3c_rtc_dt_match[3].data') [enabled by default]

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 2087953..3f3a297 100644 (file)
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -40,6 +40,10 @@ enum s3c_cpu_type {
        TYPE_S3C64XX,
 };
 
+struct s3c_rtc_drv_data {
+       int cpu_type;
+};
+
 /* I have yet to find an S3C implementation with more than one
  * of these rtc blocks in */
 
@@ -446,10 +450,12 @@ static const struct of_device_id s3c_rtc_dt_match[];
 static inline int s3c_rtc_get_driver_data(struct platform_device *pdev)
 {
 #ifdef CONFIG_OF
+       struct s3c_rtc_drv_data *data;
        if (pdev->dev.of_node) {
                const struct of_device_id *match;
                match = of_match_node(s3c_rtc_dt_match, pdev->dev.of_node);
-               return match->data;
+               data = (struct s3c_rtc_drv_data *) match->data;
+               return data->cpu_type;
        }
 #endif
        return platform_get_device_id(pdev)->driver_data;
@@ -664,20 +670,27 @@ static int s3c_rtc_resume(struct platform_device *pdev)
 #define s3c_rtc_resume  NULL
 #endif
 
+static struct s3c_rtc_drv_data s3c_rtc_drv_data_array[] = {
+       [TYPE_S3C2410] = { TYPE_S3C2410 },
+       [TYPE_S3C2416] = { TYPE_S3C2416 },
+       [TYPE_S3C2443] = { TYPE_S3C2443 },
+       [TYPE_S3C64XX] = { TYPE_S3C64XX },
+};
+
 #ifdef CONFIG_OF
 static const struct of_device_id s3c_rtc_dt_match[] = {
        {
                .compatible = "samsung,s3c2410-rtc",
-               .data = TYPE_S3C2410,
+               .data = &s3c_rtc_drv_data_array[TYPE_S3C2410],
        }, {
                .compatible = "samsung,s3c2416-rtc",
-               .data = TYPE_S3C2416,
+               .data = &s3c_rtc_drv_data_array[TYPE_S3C2416],
        }, {
                .compatible = "samsung,s3c2443-rtc",
-               .data = TYPE_S3C2443,
+               .data = &s3c_rtc_drv_data_array[TYPE_S3C2443],
        }, {
                .compatible = "samsung,s3c6410-rtc",
-               .data = TYPE_S3C64XX,
+               .data = &s3c_rtc_drv_data_array[TYPE_S3C64XX],
        },
        {},
 };