fbdev: ssd1307fb: Add blank mode

This patch adds ssd1307fb_blank() to make the framebuffer capable
of blanking.

Signed-off-by: Thomas Niederprüm <niederp@physik.uni-kl.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c
index 77efed7a42a355c2f9fe9b6abf82322ccec8ad34..8fc224c990321b4db5b8c8af8aa62678b4011616 100644 (file)
--- a/drivers/video/fbdev/ssd1307fb.c
+++ b/drivers/video/fbdev/ssd1307fb.c
@@ -235,6 +235,16 @@ static ssize_t ssd1307fb_write(struct fb_info *info, const char __user *buf,
        return count;
 }
 
+static int ssd1307fb_blank(int blank_mode, struct fb_info *info)
+{
+       struct ssd1307fb_par *par = info->par;
+
+       if (blank_mode != FB_BLANK_UNBLANK)
+               return ssd1307fb_write_cmd(par->client, SSD1307FB_DISPLAY_OFF);
+       else
+               return ssd1307fb_write_cmd(par->client, SSD1307FB_DISPLAY_ON);
+}
+
 static void ssd1307fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
 {
        struct ssd1307fb_par *par = info->par;
@@ -260,6 +270,7 @@ static struct fb_ops ssd1307fb_ops = {
        .owner          = THIS_MODULE,
        .fb_read        = fb_sys_read,
        .fb_write       = ssd1307fb_write,
+       .fb_blank       = ssd1307fb_blank,
        .fb_fillrect    = ssd1307fb_fillrect,
        .fb_copyarea    = ssd1307fb_copyarea,
        .fb_imageblit   = ssd1307fb_imageblit,