diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2011-10-31 08:54:41 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-11-01 16:01:58 +0000 |
| commit | 00dfb8df5bf8c3afe4c0bb8361133156b06b7a2c (patch) | |
| tree | 8e3f02edd94d6ac4e2478df506202e219e2ad5ed /drivers/gpu/drm/radeon/atombios_dp.c | |
| parent | 06c9c2332cc3bffcc184f32ee503dc0a4eb83de0 (diff) | |
drm/radeon/kms: properly set panel mode for eDP
This should make eDP more reliable.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_dp.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_dp.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index 79e8ebc0530..b5628ce1228 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -553,6 +553,7 @@ static void radeon_dp_set_panel_mode(struct drm_encoder *encoder, { struct drm_device *dev = encoder->dev; struct radeon_device *rdev = dev->dev_private; + struct radeon_connector *radeon_connector = to_radeon_connector(connector); int panel_mode = DP_PANEL_MODE_EXTERNAL_DP_MODE; if (!ASIC_IS_DCE4(rdev)) @@ -560,10 +561,20 @@ static void radeon_dp_set_panel_mode(struct drm_encoder *encoder, if (radeon_connector_encoder_is_dp_bridge(connector)) panel_mode = DP_PANEL_MODE_INTERNAL_DP1_MODE; + else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) { + u8 tmp = radeon_read_dpcd_reg(radeon_connector, DP_EDP_CONFIGURATION_CAP); + if (tmp & 1) + panel_mode = DP_PANEL_MODE_INTERNAL_DP2_MODE; + } atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_SETUP_PANEL_MODE, panel_mode); + + if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) && + (panel_mode == DP_PANEL_MODE_INTERNAL_DP2_MODE)) { + radeon_write_dpcd_reg(radeon_connector, DP_EDP_CONFIGURATION_SET, 1); + } } void radeon_dp_set_link_config(struct drm_connector *connector, |