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 36574bf..369a5b3 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -702,6 +702,35 @@
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 @@
.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)