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authorAlexey Charkov <alchark@gmail.com>2011-01-13 01:14:44 +0300
committerPaul Mundt <lethal@linux-sh.org>2011-01-13 07:07:41 +0300
commite41f1a98940824ad0c95271e69939acdc6092e5f (patch)
treef6dd0af0ac531918d3e7cc22d136a515e16e6fd6 /drivers/video/vt8500lcdfb.c
parente3d5fb71e228c22ee1f78f19f19ef4e07f48f076 (diff)
downloadlinux-e41f1a98940824ad0c95271e69939acdc6092e5f.tar.xz
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: Alexey Charkov <alchark@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/video/vt8500lcdfb.c')
-rw-r--r--drivers/video/vt8500lcdfb.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/video/vt8500lcdfb.c b/drivers/video/vt8500lcdfb.c
index 7617f12e4fd7..0e120d67eb65 100644
--- a/drivers/video/vt8500lcdfb.c
+++ b/drivers/video/vt8500lcdfb.c
@@ -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)