From: Thomas Niederprüm <niederp@physik.uni-kl.de>
Date: Tue, 31 Mar 2015 18:27:16 +0000 (+0200)
Subject: fbdev: ssd1307fb: Add blank mode
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=550e768c2a9932e037f2148ecddecd8a5ee0f26e;p=linux-beck.git

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 77efed7a42a3..8fc224c99032 100644
--- 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,