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

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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;