diff options
| author | Janusz Krzysztofik <jkrzysz@tis.icnet.pl> | 2010-01-14 21:25:43 +0100 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@nokia.com> | 2010-02-12 12:46:07 +0200 |
| commit | 3e9ff04408483b7972240cf433c7fb4b6b88cf0a (patch) | |
| tree | 45cbf083a6f46585e0a14339d75cb926c947cb15 /drivers/video/omap/omapfb_main.c | |
| parent | 60596045ac3d73ab6aac85d1eca617ba4c97b020 (diff) | |
omapfb: Fix 12-bit display (RGB444 color mode) handling
Support for RGB444 (12-bit) pixel format has been introduced into omapfb/lcdc
by Mark Underwood on 2006-05-26 (commit
f74edb6668aad9fc8e81585861b18f996c78a574) in preparation for Amstrad Delta
(E3) videophone LCD display support.
Before the Amstrad Delta LCD patch by Jonathan McDowell was applied (on
2006-08-04, commit 8d22fb2ea004cdb6379b54c1a8fd1546cfe40ed7), omapfb and lcdc
code was changed substantially (commit
e563dc81aa01bd8bbb01bc53975a15c398715f62 dated 2006-06-26) in a way that broke
Mark's 12-bit display support. Than, a patch by Jonathan, that supposed to
correct the problem, was introduced immediatelly (on 2006-08-04, commit
e10a75b49e7a57ae17c28b705153c70eba15a8ef).
As a result, the Amstrad Delta display was working correctly at boot time,
with fbset reporting:
geometry 480 320 480 320 16
...
rgba 4/8,4/4,4/0,0/0
However, after first framebuffer reinitialization, colors were no longer being
displayed correctly and fbset was reporting:
rgba 5/11,6/5,5/0,0/0
The patch tries to correct the issue by setting plane->color_mode depending on
panel->bpp, not var->bits_per_pixel.
Created and tested on Amstrad Delta against linux-2.6.33-rc3.
Signed-off-by: Janusz Krzysztofik <jkrzysz@tis.icnet.pl>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Diffstat (limited to 'drivers/video/omap/omapfb_main.c')
| -rw-r--r-- | drivers/video/omap/omapfb_main.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c index 2c4f470fa08..8ce60e1b220 100644 --- a/drivers/video/omap/omapfb_main.c +++ b/drivers/video/omap/omapfb_main.c @@ -486,10 +486,11 @@ static int set_color_mode(struct omapfb_plane_struct *plane, return 0; case 12: var->bits_per_pixel = 16; - plane->color_mode = OMAPFB_COLOR_RGB444; - return 0; case 16: - plane->color_mode = OMAPFB_COLOR_RGB565; + if (plane->fbdev->panel->bpp == 12) + plane->color_mode = OMAPFB_COLOR_RGB444; + else + plane->color_mode = OMAPFB_COLOR_RGB565; return 0; default: return -EINVAL; |