diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_connectors.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_connectors.c | 75 |
1 files changed, 61 insertions, 14 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 729207a1e83e..5b6067aa08bd 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -400,7 +400,6 @@ static enum drm_connector_status radeon_lvds_detect(struct drm_connector *connec struct radeon_connector *radeon_connector = to_radeon_connector(connector); struct drm_encoder *encoder = radeon_best_single_encoder(connector); enum drm_connector_status ret = connector_status_disconnected; - bool dret; if (encoder) { struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); @@ -413,12 +412,17 @@ static enum drm_connector_status radeon_lvds_detect(struct drm_connector *connec } /* check for edid as well */ - if (radeon_connector->ddc_bus) { - radeon_i2c_do_lock(radeon_connector, 1); - dret = radeon_ddc_probe(radeon_connector); - radeon_i2c_do_lock(radeon_connector, 0); - if (dret) - ret = connector_status_connected; + if (radeon_connector->edid) + ret = connector_status_connected; + else { + if (radeon_connector->ddc_bus) { + radeon_i2c_do_lock(radeon_connector, 1); + radeon_connector->edid = drm_get_edid(&radeon_connector->base, + &radeon_connector->ddc_bus->adapter); + radeon_i2c_do_lock(radeon_connector, 0); + if (radeon_connector->edid) + ret = connector_status_connected; + } } /* check acpi lid status ??? */ @@ -432,6 +436,8 @@ static void radeon_connector_destroy(struct drm_connector *connector) if (radeon_connector->ddc_bus) radeon_i2c_destroy(radeon_connector->ddc_bus); + if (radeon_connector->edid) + kfree(radeon_connector->edid); kfree(radeon_connector->con_priv); drm_sysfs_connector_remove(connector); drm_connector_cleanup(connector); @@ -519,9 +525,32 @@ static enum drm_connector_status radeon_vga_detect(struct drm_connector *connect radeon_i2c_do_lock(radeon_connector, 1); dret = radeon_ddc_probe(radeon_connector); radeon_i2c_do_lock(radeon_connector, 0); - if (dret) - ret = connector_status_connected; - else { + if (dret) { + if (radeon_connector->edid) { + kfree(radeon_connector->edid); + radeon_connector->edid = NULL; + } + radeon_i2c_do_lock(radeon_connector, 1); + radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter); + radeon_i2c_do_lock(radeon_connector, 0); + + if (!radeon_connector->edid) { + DRM_ERROR("DDC responded but not EDID found for %s\n", + drm_get_connector_name(connector)); + } else { + radeon_connector->use_digital = !!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL); + + /* some oems have boards with separate digital and analog connectors + * with a shared ddc line (often vga + hdmi) + */ + if (radeon_connector->use_digital && radeon_connector->shared_ddc) { + kfree(radeon_connector->edid); + radeon_connector->edid = NULL; + ret = connector_status_disconnected; + } else + ret = connector_status_connected; + } + } else { if (radeon_connector->dac_load_detect) { encoder_funcs = encoder->helper_private; ret = encoder_funcs->detect(encoder, connector); @@ -649,6 +678,10 @@ static enum drm_connector_status radeon_dvi_detect(struct drm_connector *connect dret = radeon_ddc_probe(radeon_connector); radeon_i2c_do_lock(radeon_connector, 0); if (dret) { + if (radeon_connector->edid) { + kfree(radeon_connector->edid); + radeon_connector->edid = NULL; + } radeon_i2c_do_lock(radeon_connector, 1); radeon_connector->edid = drm_get_edid(&radeon_connector->base, &radeon_connector->ddc_bus->adapter); radeon_i2c_do_lock(radeon_connector, 0); @@ -659,10 +692,15 @@ static enum drm_connector_status radeon_dvi_detect(struct drm_connector *connect } else { radeon_connector->use_digital = !!(radeon_connector->edid->input & DRM_EDID_INPUT_DIGITAL); - /* if this isn't a digital monitor - then we need to make sure we don't have any - TV conflicts */ - ret = connector_status_connected; + /* some oems have boards with separate digital and analog connectors + * with a shared ddc line (often vga + hdmi) + */ + if ((!radeon_connector->use_digital) && radeon_connector->shared_ddc) { + kfree(radeon_connector->edid); + radeon_connector->edid = NULL; + ret = connector_status_disconnected; + } else + ret = connector_status_connected; } } @@ -787,6 +825,7 @@ radeon_add_atom_connector(struct drm_device *dev, struct radeon_connector *radeon_connector; struct radeon_connector_atom_dig *radeon_dig_connector; uint32_t subpixel_order = SubPixelNone; + bool shared_ddc = false; int ret; /* fixme - tv/cv/din */ @@ -800,6 +839,13 @@ radeon_add_atom_connector(struct drm_device *dev, radeon_connector->devices |= supported_device; return; } + if (radeon_connector->ddc_bus && i2c_bus->valid) { + if (memcmp(&radeon_connector->ddc_bus->rec, i2c_bus, + sizeof(struct radeon_i2c_bus_rec)) == 0) { + radeon_connector->shared_ddc = true; + shared_ddc = true; + } + } } radeon_connector = kzalloc(sizeof(struct radeon_connector), GFP_KERNEL); @@ -810,6 +856,7 @@ radeon_add_atom_connector(struct drm_device *dev, radeon_connector->connector_id = connector_id; radeon_connector->devices = supported_device; + radeon_connector->shared_ddc = shared_ddc; switch (connector_type) { case DRM_MODE_CONNECTOR_VGA: drm_connector_init(dev, &radeon_connector->base, &radeon_vga_connector_funcs, connector_type); |