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

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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
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@ -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);
}