diff options
| author | Alex Deucher <alexdeucher@gmail.com> | 2009-11-30 01:40:24 -0500 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2009-12-02 11:37:15 +1000 |
| commit | 7dde8a19656ddec769b609e8b5662aa7243b8b6a (patch) | |
| tree | 50f21ca898a0443686e4ae142fa6c6da5bcef6d3 /drivers | |
| parent | 30256a3f6b646f6c6ab7276a97b40792faac5f1d (diff) | |
drm/radeon/kms/atom: pull misc mode info for lvds from bios tables
sync polarity, etc. This will likely fix LVDS problems
on some laptops.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_atombios.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 74bc8dfcb2a..2dfb79defb5 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -910,7 +910,7 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct struct radeon_device *rdev = dev->dev_private; struct radeon_mode_info *mode_info = &rdev->mode_info; int index = GetIndexIntoMasterTable(DATA, LVDS_Info); - uint16_t data_offset; + uint16_t data_offset, misc; union lvds_info *lvds_info; uint8_t frev, crev; struct radeon_encoder_atom_dig *lvds = NULL; @@ -949,6 +949,19 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct lvds->panel_pwr_delay = le16_to_cpu(lvds_info->info.usOffDelayInMs); lvds->lvds_misc = lvds_info->info.ucLVDS_Misc; + + misc = le16_to_cpu(lvds_info->info.sLCDTiming.susModeMiscInfo.usAccess); + if (misc & ATOM_VSYNC_POLARITY) + lvds->native_mode.flags |= DRM_MODE_FLAG_NVSYNC; + if (misc & ATOM_HSYNC_POLARITY) + lvds->native_mode.flags |= DRM_MODE_FLAG_NHSYNC; + if (misc & ATOM_COMPOSITESYNC) + lvds->native_mode.flags |= DRM_MODE_FLAG_CSYNC; + if (misc & ATOM_INTERLACE) + lvds->native_mode.flags |= DRM_MODE_FLAG_INTERLACE; + if (misc & ATOM_DOUBLE_CLOCK_MODE) + lvds->native_mode.flags |= DRM_MODE_FLAG_DBLSCAN; + /* set crtc values */ drm_mode_set_crtcinfo(&lvds->native_mode, CRTC_INTERLACE_HALVE_V); |