diff options
author | Alex Deucher <alexdeucher@gmail.com> | 2011-06-13 21:13:34 (GMT) |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2011-06-16 23:28:03 (GMT) |
commit | 591a10e16c2a43f6f2ea5f307ab2a5afecfb9ed9 (patch) | |
tree | f4d86a8693ccb2f799598a86370e7d6346768e50 /drivers/gpu/drm/radeon | |
parent | d629a3ceb4fc1ab5aab737b964100d114aba1173 (diff) | |
download | linux-fsl-qoriq-591a10e16c2a43f6f2ea5f307ab2a5afecfb9ed9.tar.xz |
drm/radeon/kms: fix support for DDC on dp bridges
Need to set up the bridge for DDC prior to the
i2c over aux transaction.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon')
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_connectors.c | 20 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_encoders.c | 12 | ||||
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_mode.h | 1 |
3 files changed, 29 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index dc7852b..613e36f 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -44,6 +44,8 @@ extern void radeon_legacy_backlight_init(struct radeon_encoder *radeon_encoder, struct drm_connector *drm_connector); +bool radeon_connector_encoder_is_dp_bridge(struct drm_connector *connector); + void radeon_connector_hotplug(struct drm_connector *connector) { struct drm_device *dev = connector->dev; @@ -1070,10 +1072,10 @@ static int radeon_dp_get_modes(struct drm_connector *connector) { struct radeon_connector *radeon_connector = to_radeon_connector(connector); struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv; + struct drm_encoder *encoder = radeon_best_single_encoder(connector); int ret; if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) { - struct drm_encoder *encoder; struct drm_display_mode *mode; if (!radeon_dig_connector->edp_on) @@ -1085,7 +1087,6 @@ static int radeon_dp_get_modes(struct drm_connector *connector) ATOM_TRANSMITTER_ACTION_POWER_OFF); if (ret > 0) { - encoder = radeon_best_single_encoder(connector); if (encoder) { radeon_fixup_lvds_native_mode(encoder, connector); /* add scaled modes */ @@ -1109,8 +1110,14 @@ static int radeon_dp_get_modes(struct drm_connector *connector) /* add scaled modes */ radeon_add_common_modes(encoder, connector); } - } else + } else { + /* need to setup ddc on the bridge */ + if (radeon_connector_encoder_is_dp_bridge(connector)) { + if (encoder) + radeon_atom_ext_encoder_setup_ddc(encoder); + } ret = radeon_ddc_get_modes(radeon_connector); + } return ret; } @@ -1194,6 +1201,7 @@ radeon_dp_detect(struct drm_connector *connector, bool force) struct radeon_connector *radeon_connector = to_radeon_connector(connector); enum drm_connector_status ret = connector_status_disconnected; struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv; + struct drm_encoder *encoder = radeon_best_single_encoder(connector); if (radeon_connector->edid) { kfree(radeon_connector->edid); @@ -1201,7 +1209,6 @@ radeon_dp_detect(struct drm_connector *connector, bool force) } if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) { - struct drm_encoder *encoder = radeon_best_single_encoder(connector); if (encoder) { struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct drm_display_mode *native_mode = &radeon_encoder->native_mode; @@ -1221,6 +1228,11 @@ radeon_dp_detect(struct drm_connector *connector, bool force) atombios_set_edp_panel_power(connector, ATOM_TRANSMITTER_ACTION_POWER_OFF); } else { + /* need to setup ddc on the bridge */ + if (radeon_connector_encoder_is_dp_bridge(connector)) { + if (encoder) + radeon_atom_ext_encoder_setup_ddc(encoder); + } radeon_dig_connector->dp_sink_type = radeon_dp_getsinktype(radeon_connector); if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) { ret = connector_status_connected; diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c index d344944..8e058f1 100644 --- a/drivers/gpu/drm/radeon/radeon_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_encoders.c @@ -2046,6 +2046,18 @@ radeon_atom_dig_detect(struct drm_encoder *encoder, struct drm_connector *connec return connector_status_disconnected; } +void +radeon_atom_ext_encoder_setup_ddc(struct drm_encoder *encoder) +{ + struct drm_encoder *ext_encoder = radeon_atom_get_external_encoder(encoder); + + if (ext_encoder) + /* ddc_setup on the dp bridge */ + atombios_external_encoder_setup(encoder, ext_encoder, + EXTERNAL_ENCODER_ACTION_V3_DDC_SETUP); + +} + static void radeon_atom_encoder_prepare(struct drm_encoder *encoder) { struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index 977a341..f734b37 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -483,6 +483,7 @@ extern void radeon_atom_encoder_init(struct radeon_device *rdev); extern void atombios_dig_transmitter_setup(struct drm_encoder *encoder, int action, uint8_t lane_num, uint8_t lane_set); +extern void radeon_atom_ext_encoder_setup_ddc(struct drm_encoder *encoder); extern int radeon_dp_i2c_aux_ch(struct i2c_adapter *adapter, int mode, u8 write_byte, u8 *read_byte); |