diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_connectors.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_connectors.c | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 8b3d8ed52ff6..3c2e7a000a2a 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -827,6 +827,27 @@ static int radeon_dvi_get_modes(struct drm_connector *connector) return ret; } +static bool radeon_check_hpd_status_unchanged(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); + enum drm_connector_status status; + + /* We only trust HPD on R600 and newer ASICS. */ + if (rdev->family >= CHIP_R600 + && radeon_connector->hpd.hpd != RADEON_HPD_NONE) { + if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) + status = connector_status_connected; + else + status = connector_status_disconnected; + if (connector->status == status) + return true; + } + + return false; +} + /* * DVI is complicated * Do a DDC probe, if DDC probe passes, get the full EDID so @@ -851,6 +872,9 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) enum drm_connector_status ret = connector_status_disconnected; bool dret = false; + if (!force && radeon_check_hpd_status_unchanged(connector)) + return connector->status; + if (radeon_connector->ddc_bus) dret = radeon_ddc_probe(radeon_connector); if (dret) { @@ -946,6 +970,10 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) encoder = obj_to_encoder(obj); + if (encoder->encoder_type != DRM_MODE_ENCODER_DAC && + encoder->encoder_type != DRM_MODE_ENCODER_TVDAC) + continue; + encoder_funcs = encoder->helper_private; if (encoder_funcs->detect) { if (ret != connector_status_connected) { @@ -972,6 +1000,7 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) * cases the DVI port is actually a virtual KVM port connected to the service * processor. */ +out: if ((!rdev->is_atom_bios) && (ret == connector_status_disconnected) && rdev->mode_info.bios_hardcoded_edid_size) { @@ -979,7 +1008,6 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) ret = connector_status_connected; } -out: /* updated in get modes as well since we need to know if it's analog or digital */ radeon_connector_update_scratch_regs(connector, ret); return ret; @@ -1057,7 +1085,7 @@ static int radeon_dvi_mode_valid(struct drm_connector *connector, (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B)) return MODE_OK; else if (radeon_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_A) { - if (ASIC_IS_DCE3(rdev)) { + if (ASIC_IS_DCE6(rdev)) { /* HDMI 1.3+ supports max clock of 340 Mhz */ if (mode->clock > 340000) return MODE_CLOCK_HIGH; @@ -1250,6 +1278,9 @@ radeon_dp_detect(struct drm_connector *connector, bool force) struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv; struct drm_encoder *encoder = radeon_best_single_encoder(connector); + if (!force && radeon_check_hpd_status_unchanged(connector)) + return connector->status; + if (radeon_connector->edid) { kfree(radeon_connector->edid); radeon_connector->edid = NULL; |