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drm/radeon/kms: fix radeon_dp_get_modes for LVDS bridges (v2) 

Need to call ExternalEncoderControl to set up DDC before
trying to get an EDID for all DP bridge chips (including
DP to LVDS).

Also remove redundant encoder assignment.

V2: fix typo in commit message.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2012-02-28 11:08:22 -05:00 committed by Dave Airlie
parent e2bc96aeff
commit 2b69ffb970
1 changed files with 17 additions and 8 deletions
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25
drivers/gpu/drm/radeon/radeon_connectors.c
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@ -1117,13 +1117,23 @@ static int radeon_dp_get_modes(struct drm_connector *connector)
(connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
struct drm_display_mode *mode;
if (!radeon_dig_connector->edp_on)
atombios_set_edp_panel_power(connector,
ATOM_TRANSMITTER_ACTION_POWER_ON);
ret = radeon_ddc_get_modes(radeon_connector);
if (!radeon_dig_connector->edp_on)
atombios_set_edp_panel_power(connector,
ATOM_TRANSMITTER_ACTION_POWER_OFF);
if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
if (!radeon_dig_connector->edp_on)
atombios_set_edp_panel_power(connector,
ATOM_TRANSMITTER_ACTION_POWER_ON);
ret = radeon_ddc_get_modes(radeon_connector);
if (!radeon_dig_connector->edp_on)
atombios_set_edp_panel_power(connector,
ATOM_TRANSMITTER_ACTION_POWER_OFF);
} else {
/* need to setup ddc on the bridge */
if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) !=
ENCODER_OBJECT_ID_NONE) {
if (encoder)
radeon_atom_ext_encoder_setup_ddc(encoder);
}
ret = radeon_ddc_get_modes(radeon_connector);
}
if (ret > 0) {
if (encoder) {
@ -1134,7 +1144,6 @@ static int radeon_dp_get_modes(struct drm_connector *connector)
return ret;
}
encoder = radeon_best_single_encoder(connector);
if (!encoder)
return 0;