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drm/radeon/kms: use LCD physical size from vbios tables if available 

Some systems have the LCD width and height in mm available in the
LCD info table.  Use this info if there is no EDID to provide it.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2010-12-08 22:13:05 -05:00 committed by Dave Airlie
parent 000fa7cf46
commit 7a868e18a4
2 changed files with 6 additions and 0 deletions
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3
drivers/gpu/drm/radeon/radeon_atombios.c
View File

@ -1500,6 +1500,9 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct
if (misc & ATOM_DOUBLE_CLOCK_MODE)
lvds->native_mode.flags |= DRM_MODE_FLAG_DBLSCAN;
lvds->native_mode.width_mm = lvds_info->info.sLCDTiming.usImageHSize;
lvds->native_mode.height_mm = lvds_info->info.sLCDTiming.usImageVSize;
/* set crtc values */
drm_mode_set_crtcinfo(&lvds->native_mode, CRTC_INTERLACE_HALVE_V);

3
drivers/gpu/drm/radeon/radeon_connectors.c
View File

@ -472,6 +472,9 @@ static int radeon_lvds_get_modes(struct drm_connector *connector)
if (mode) {
ret = 1;
drm_mode_probed_add(connector, mode);
/* add the width/height from vbios tables if available */
connector->display_info.width_mm = mode->width_mm;
connector->display_info.height_mm = mode->height_mm;
/* add scaled modes */
radeon_add_common_modes(encoder, connector);
}