davinci: fb: add framebuffer blank operation

Implement frame buffer blank operation feature for DA8xx/OMAP-L1xx driver.

Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index 36574bf61d06ae5fbb264013d671ceadf393636f..369a5b3ac6493b578425a7435ad45b4c2bc3759b 100644 (file)
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -702,6 +702,35 @@ static int fb_ioctl(struct fb_info *info, unsigned int cmd,
        return 0;
 }
 
+static int cfb_blank(int blank, struct fb_info *info)
+{
+       struct da8xx_fb_par *par = info->par;
+       int ret = 0;
+
+       if (par->blank == blank)
+               return 0;
+
+       par->blank = blank;
+       switch (blank) {
+       case FB_BLANK_UNBLANK:
+               if (par->panel_power_ctrl)
+                       par->panel_power_ctrl(1);
+
+               lcd_enable_raster();
+               break;
+       case FB_BLANK_POWERDOWN:
+               if (par->panel_power_ctrl)
+                       par->panel_power_ctrl(0);
+
+               lcd_disable_raster();
+               break;
+       default:
+               ret = -EINVAL;
+       }
+
+       return ret;
+}
+
 static struct fb_ops da8xx_fb_ops = {
        .owner = THIS_MODULE,
        .fb_check_var = fb_check_var,
@@ -710,6 +739,7 @@ static struct fb_ops da8xx_fb_ops = {
        .fb_fillrect = cfb_fillrect,
        .fb_copyarea = cfb_copyarea,
        .fb_imageblit = cfb_imageblit,
+       .fb_blank = cfb_blank,
 };
 
 static int __init fb_probe(struct platform_device *device)