[PATCH 09/12] fb: Add fb_enable/disable functions
Sascha Hauer
s.hauer at pengutronix.de
Thu Jul 16 00:31:49 PDT 2015
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
drivers/video/fb.c | 29 ++++++++++++++++++++++++-----
include/fb.h | 3 +++
2 files changed, 27 insertions(+), 5 deletions(-)
diff --git a/drivers/video/fb.c b/drivers/video/fb.c
index e30ab59..25f089a 100644
--- a/drivers/video/fb.c
+++ b/drivers/video/fb.c
@@ -29,6 +29,30 @@ static int fb_ioctl(struct cdev* cdev, int req, void *data)
return 0;
}
+int fb_enable(struct fb_info *info)
+{
+ if (info->enabled)
+ return 0;
+
+ info->fbops->fb_enable(info);
+
+ info->enabled = true;
+
+ return 0;
+}
+
+int fb_disable(struct fb_info *info)
+{
+ if (!info->enabled)
+ return 0;
+
+ info->fbops->fb_disable(info);
+
+ info->enabled = false;
+
+ return 0;
+}
+
static int fb_enable_set(struct param_d *param, void *priv)
{
struct fb_info *info = priv;
@@ -36,16 +60,11 @@ static int fb_enable_set(struct param_d *param, void *priv)
enable = info->p_enable;
- if (enable == info->enabled)
- return 0;
-
if (enable)
info->fbops->fb_enable(info);
else
info->fbops->fb_disable(info);
- info->enabled = enable;
-
return 0;
}
diff --git a/include/fb.h b/include/fb.h
index 2db6ad6..9221618 100644
--- a/include/fb.h
+++ b/include/fb.h
@@ -146,6 +146,9 @@ struct display_timings *of_get_display_timings(struct device_node *np);
int register_framebuffer(struct fb_info *info);
+int fb_enable(struct fb_info *info);
+int fb_disable(struct fb_info *info);
+
#define FBIOGET_SCREENINFO _IOR('F', 1, loff_t)
#define FBIO_ENABLE _IO('F', 2)
#define FBIO_DISABLE _IO('F', 3)
--
2.1.4
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