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drm/radeon/kms: handle DP bridges

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Fusion hardware often has DP to VGA/LVDS/TMDS bridges to
handle non-DP encoders.  Internally we treat them mostly
like DP.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher
2011-05-20 04:34:22 -04:00
committed by Dave Airlie
parent 834b2904bb
commit eac4dff6d3
3 changed files with 264 additions and 182 deletions
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6
drivers/gpu/drm/radeon/atombios_crtc.c
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@@ -557,7 +557,8 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
if (connector)
bpc = connector->display_info.bpc;
encoder_mode = atombios_get_encoder_mode(encoder);
if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) {
if ((radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
radeon_encoder_is_dp_bridge(encoder)) {
if (connector) {
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
struct radeon_connector_atom_dig *dig_connector =
@@ -637,7 +638,8 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
if (ss_enabled && ss->percentage)
args.v3.sInput.ucDispPllConfig |=
DISPPLL_CONFIG_SS_ENABLE;
if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT)) {
if (radeon_encoder->devices & (ATOM_DEVICE_DFP_SUPPORT) ||
radeon_encoder_is_dp_bridge(encoder)) {
struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
if (encoder_mode == ATOM_ENCODER_MODE_DP) {
args.v3.sInput.ucDispPllConfig |=