The patch titled
Subject: drivers/video/backlight/platform_lcd.c: introduce probe callback
has been added to the -mm tree. Its filename is
drivers-video-backlight-platform_lcdc-introduce-probe-callback.patch
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------------------------------------------------------
From: Andrew Bresticker <abrestic@xxxxxxxxxxxx>
Subject: drivers/video/backlight/platform_lcd.c: introduce probe callback
Platform LCD devices may need to do some device-specific initialization
before they can be used (regulator or GPIO setup, for example), but
currently the driver does not support any way of doing this. This patch
adds a probe() callback to plat_lcd_data which platform LCD devices can
set to indicate that device-specific initialization is needed.
Signed-off-by: Andrew Bresticker <abrestic@xxxxxxxxxxxx>
Cc: Richard Purdie <rpurdie@xxxxxxxxx>
Cc: Florian Tobias Schandinat <FlorianSchandinat@xxxxxx>
Reviewed-by: Doug Anderson <dianders@xxxxxxxxxxxx>
Acked-by: Jingoo Han <jg1.han@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/backlight/platform_lcd.c | 6 ++++++
include/video/platform_lcd.h | 1 +
2 files changed, 7 insertions(+)
diff -puN drivers/video/backlight/platform_lcd.c~drivers-video-backlight-platform_lcdc-introduce-probe-callback drivers/video/backlight/platform_lcd.c
--- a/drivers/video/backlight/platform_lcd.c~drivers-video-backlight-platform_lcdc-introduce-probe-callback
+++ a/drivers/video/backlight/platform_lcd.c
@@ -86,6 +86,12 @@ static int platform_lcd_probe(struct pla
return -EINVAL;
}
+ if (pdata->probe) {
+ err = pdata->probe(pdata);
+ if (err)
+ return err;
+ }
+
plcd = devm_kzalloc(&pdev->dev, sizeof(struct platform_lcd),
GFP_KERNEL);
if (!plcd) {
diff -puN include/video/platform_lcd.h~drivers-video-backlight-platform_lcdc-introduce-probe-callback include/video/platform_lcd.h
--- a/include/video/platform_lcd.h~drivers-video-backlight-platform_lcdc-introduce-probe-callback
+++ a/include/video/platform_lcd.h
@@ -15,6 +15,7 @@ struct plat_lcd_data;
struct fb_info;
struct plat_lcd_data {
+ int (*probe)(struct plat_lcd_data *);
void (*set_power)(struct plat_lcd_data *, unsigned int power);
int (*match_fb)(struct plat_lcd_data *, struct fb_info *);
};
_
Patches currently in -mm which might be from abrestic@xxxxxxxxxxxx are
linux-next.patch
drivers-video-backlight-platform_lcdc-introduce-probe-callback.patch
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