Commit e41f1a98 authored by Alexey Charkov's avatar Alexey Charkov Committed by Paul Mundt

fbdev: Implement simple blanking in pseudocolor modes for vt8500lcdfb

Implement simple blanking in pseudocolor modes for vt8500lcdfb

This follows the style of some other in-tree drivers by just setting
the hardware palette colors to all black. True Color modes are not
affected, but this at least allows to run xf86-video-fbdev without
errors due to blanking being unimplemented.
Signed-off-by: default avatarAlexey Charkov <alchark@gmail.com>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent e3d5fb71
......@@ -215,6 +215,33 @@ static int vt8500lcd_pan_display(struct fb_var_screeninfo *var,
return 0;
}
/*
* vt8500lcd_blank():
* Blank the display by setting all palette values to zero. Note,
* True Color modes do not really use the palette, so this will not
* blank the display in all modes.
*/
static int vt8500lcd_blank(int blank, struct fb_info *info)
{
int i;
switch (blank) {
case FB_BLANK_POWERDOWN:
case FB_BLANK_VSYNC_SUSPEND:
case FB_BLANK_HSYNC_SUSPEND:
case FB_BLANK_NORMAL:
if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR ||
info->fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR)
for (i = 0; i < 256; i++)
vt8500lcd_setcolreg(i, 0, 0, 0, 0, info);
case FB_BLANK_UNBLANK:
if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR ||
info->fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR)
fb_set_cmap(&info->cmap, info);
}
return 0;
}
static struct fb_ops vt8500lcd_ops = {
.owner = THIS_MODULE,
.fb_set_par = vt8500lcd_set_par,
......@@ -225,6 +252,7 @@ static struct fb_ops vt8500lcd_ops = {
.fb_sync = wmt_ge_sync,
.fb_ioctl = vt8500lcd_ioctl,
.fb_pan_display = vt8500lcd_pan_display,
.fb_blank = vt8500lcd_blank,
};
static irqreturn_t vt8500lcd_handle_irq(int irq, void *dev_id)
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment