The set_power function in platdata for platform_lcd driver
has originally two parameters.
The first parameter type is struct plat_lcd_data * and
the second parameter type is unsigned int .
In some cases, it is needed to get pointer typed 'struct device'
in order to call regulator_* functions.
This patch allows users to define a set_power function
which control regulators related to platform_lcd device.
Currently, variables in struct plat_lcd_data are not used
in several set_power functions which are defined at arch/arm/ directory.
Changes since v1 :
* Remove compile warning message by including another heeder file
Signed-off-by: Donggeun Kim <dg77.kim@xxxxxxxxxxx>
Signed-off-by: Donghwa Lee <dh09.lee@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/video/backlight/platform_lcd.c | 2 +-
include/video/platform_lcd.h | 3 ++-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/video/backlight/platform_lcd.c b/drivers/video/backlight/platform_lcd.c
index 302330a..cf23a3f 100644
--- a/drivers/video/backlight/platform_lcd.c
+++ b/drivers/video/backlight/platform_lcd.c
@@ -49,7 +49,7 @@ static int platform_lcd_set_power(struct lcd_device *lcd, int power)
if (power == FB_BLANK_POWERDOWN || plcd->suspended)
lcd_power = 0;
- plcd->pdata->set_power(plcd->pdata, lcd_power);
+ plcd->pdata->set_power(lcd, lcd_power);
plcd->power = power;
return 0;
diff --git a/include/video/platform_lcd.h b/include/video/platform_lcd.h
index ad3bdfe..5d7e943 100644
--- a/include/video/platform_lcd.h
+++ b/include/video/platform_lcd.h
@@ -10,12 +10,13 @@
* published by the Free Software Foundation.
*
*/
+#include <linux/lcd.h>
struct plat_lcd_data;
struct fb_info;
struct plat_lcd_data {
- void (*set_power)(struct plat_lcd_data *, unsigned int power);
+ void (*set_power)(struct lcd_device *, unsigned int power);
int (*match_fb)(struct plat_lcd_data *, struct fb_info *);
};
--
1.7.4.1
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