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>

1 files changed, 30 insertions, 0 deletions

diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index 36574bf61d06..369a5b3ac649 100644
--- 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)