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drm/radeon/kms/combios: match lvds panel info parsing to ddx 

Should work better on some panels.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2010-05-18 00:30:05 -04:00 committed by Dave Airlie
parent 1ff26a3604
commit 68b61a7fd2
1 changed files with 13 additions and 11 deletions
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24
drivers/gpu/drm/radeon/radeon_combios.c
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@ -1113,18 +1113,20 @@ struct radeon_encoder_lvds *radeon_combios_get_lvds_info(struct radeon_encoder
break;
if ((RBIOS16(tmp) == lvds->native_mode.hdisplay) &&
(RBIOS16(tmp + 2) ==
lvds->native_mode.vdisplay)) {
lvds->native_mode.htotal = RBIOS16(tmp + 17) * 8;
lvds->native_mode.hsync_start = RBIOS16(tmp + 21) * 8;
lvds->native_mode.hsync_end = (RBIOS8(tmp + 23) +
RBIOS16(tmp + 21)) * 8;
(RBIOS16(tmp + 2) == lvds->native_mode.vdisplay)) {
lvds->native_mode.htotal = lvds->native_mode.hdisplay +
(RBIOS16(tmp + 17) - RBIOS16(tmp + 19)) * 8;
lvds->native_mode.hsync_start = lvds->native_mode.hdisplay +
(RBIOS16(tmp + 21) - RBIOS16(tmp + 19) - 1) * 8;
lvds->native_mode.hsync_end = lvds->native_mode.hsync_start +
(RBIOS8(tmp + 23) * 8);
lvds->native_mode.vtotal = RBIOS16(tmp + 24);
lvds->native_mode.vsync_start = RBIOS16(tmp + 28) & 0x7ff;
lvds->native_mode.vsync_end =
((RBIOS16(tmp + 28) & 0xf800) >> 11) +
(RBIOS16(tmp + 28) & 0x7ff);
lvds->native_mode.vtotal = lvds->native_mode.vdisplay +
(RBIOS16(tmp + 24) - RBIOS16(tmp + 26));
lvds->native_mode.vsync_start = lvds->native_mode.vdisplay +
((RBIOS16(tmp + 28) & 0x7ff) - RBIOS16(tmp + 26));
lvds->native_mode.vsync_end = lvds->native_mode.vsync_start +
((RBIOS16(tmp + 28) & 0xf800) >> 11);
lvds->native_mode.clock = RBIOS16(tmp + 9) * 10;
lvds->native_mode.flags = 0;