diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2012-03-26 23:12:54 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-04-24 12:50:12 +0400 |
| commit | eccea7920cfb009c2fa40e9ecdce8c36f61cab66 (patch) | |
| tree | 70a7a63caaa8f8c8373c40cd2ac0641750ba2a56 /drivers/gpu/drm/radeon/radeon_connectors.c | |
| parent | 9923777dff4543050fdf938cf6b19f6d4376b7c5 (diff) | |
| download | linux-eccea7920cfb009c2fa40e9ecdce8c36f61cab66.tar.xz | |
drm/radeon/kms: improve bpc handling (v2)
Improve handling of bpc (bits per color) in radeon.
In most cases we want 8 except for HDMI, DP, LVDS, and eDP.
v2: handle DP better.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_connectors.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_connectors.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index bd05156edbdb..71fa389e10fe 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -84,6 +84,62 @@ static void radeon_property_change_mode(struct drm_encoder *encoder) crtc->x, crtc->y, crtc->fb); } } + +int radeon_get_monitor_bpc(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct radeon_device *rdev = dev->dev_private; + struct radeon_connector *radeon_connector = to_radeon_connector(connector); + struct radeon_connector_atom_dig *dig_connector; + int bpc = 8; + + switch (connector->connector_type) { + case DRM_MODE_CONNECTOR_DVII: + case DRM_MODE_CONNECTOR_HDMIB: + if (radeon_connector->use_digital) { + if (drm_detect_hdmi_monitor(radeon_connector->edid)) { + if (connector->display_info.bpc) + bpc = connector->display_info.bpc; + } + } + break; + case DRM_MODE_CONNECTOR_DVID: + case DRM_MODE_CONNECTOR_HDMIA: + if (drm_detect_hdmi_monitor(radeon_connector->edid)) { + if (connector->display_info.bpc) + bpc = connector->display_info.bpc; + } + break; + case DRM_MODE_CONNECTOR_DisplayPort: + dig_connector = radeon_connector->con_priv; + if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) || + (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) || + drm_detect_hdmi_monitor(radeon_connector->edid)) { + if (connector->display_info.bpc) + bpc = connector->display_info.bpc; + } + break; + case DRM_MODE_CONNECTOR_eDP: + case DRM_MODE_CONNECTOR_LVDS: + if (connector->display_info.bpc) + bpc = connector->display_info.bpc; + else if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev)) { + struct drm_connector_helper_funcs *connector_funcs = + connector->helper_private; + struct drm_encoder *encoder = connector_funcs->best_encoder(connector); + struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); + struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; + + if (dig->lcd_misc & ATOM_PANEL_MISC_V13_6BIT_PER_COLOR) + bpc = 6; + else if (dig->lcd_misc & ATOM_PANEL_MISC_V13_8BIT_PER_COLOR) + bpc = 8; + } + break; + } + return bpc; +} + static void radeon_connector_update_scratch_regs(struct drm_connector *connector, enum drm_connector_status status) { |