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| author | Alexey Charkov <alchark@gmail.com> | 2011-01-12 22:14:44 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2011-01-13 13:07:41 +0900 |
| commit | e41f1a98940824ad0c95271e69939acdc6092e5f (patch) | |
| tree | f6dd0af0ac531918d3e7cc22d136a515e16e6fd6 /drivers/video/vt8500lcdfb.c | |
| parent | e3d5fb71e228c22ee1f78f19f19ef4e07f48f076 (diff) | |
| download | linux-e41f1a98940824ad0c95271e69939acdc6092e5f.tar.bz2 | |
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.c | 28 |
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) |