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drm/nouveau: ignore connector type when deciding digital/analog on DVI-I

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If the connector table is lying, which it often does on the boards of a
particular manufacturer, we may end up doing the wrong thing.  Listen
to the encoder table instead, it's more reliable.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2011-07-12 13:32:07 +10:00
parent f0d07d6e89
commit e19b20bbd2
1 changed files with 19 additions and 15 deletions
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34
drivers/gpu/drm/nouveau/nouveau_connector.c
View file

@ -40,7 +40,7 @@
static void nouveau_connector_hotplug(void *, int);
static struct nouveau_encoder *
find_encoder_by_type(struct drm_connector *connector, int type)
find_encoder(struct drm_connector *connector, int type)
{
struct drm_device *dev = connector->dev;
struct nouveau_encoder *nv_encoder;
@ -170,8 +170,8 @@ nouveau_connector_of_detect(struct drm_connector *connector)
struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
if (!dn ||
!((nv_encoder = find_encoder_by_type(connector, OUTPUT_TMDS)) ||
(nv_encoder = find_encoder_by_type(connector, OUTPUT_ANALOG))))
!((nv_encoder = find_encoder(connector, OUTPUT_TMDS)) ||
(nv_encoder = find_encoder(connector, OUTPUT_ANALOG))))
return NULL;
for_each_child_of_node(dn, cn) {
@ -233,6 +233,7 @@ nouveau_connector_detect(struct drm_connector *connector, bool force)
struct drm_device *dev = connector->dev;
struct nouveau_connector *nv_connector = nouveau_connector(connector);
struct nouveau_encoder *nv_encoder = NULL;
struct nouveau_encoder *nv_partner;
struct nouveau_i2c_chan *i2c;
int type;
@ -266,19 +267,22 @@ nouveau_connector_detect(struct drm_connector *connector, bool force)
* same i2c channel so the value returned from ddc_detect
* isn't necessarily correct.
*/
if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
nv_partner = NULL;
if (nv_encoder->dcb->type == OUTPUT_TMDS)
nv_partner = find_encoder(connector, OUTPUT_ANALOG);
if (nv_encoder->dcb->type == OUTPUT_ANALOG)
nv_partner = find_encoder(connector, OUTPUT_TMDS);
if (nv_partner && ((nv_encoder->dcb->type == OUTPUT_ANALOG &&
nv_partner->dcb->type == OUTPUT_TMDS) ||
(nv_encoder->dcb->type == OUTPUT_TMDS &&
nv_partner->dcb->type == OUTPUT_ANALOG))) {
if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
type = OUTPUT_TMDS;
else
type = OUTPUT_ANALOG;
nv_encoder = find_encoder_by_type(connector, type);
if (!nv_encoder) {
NV_ERROR(dev, "Detected %d encoder on %s, "
"but no object!\n", type,
drm_get_connector_name(connector));
return connector_status_disconnected;
}
nv_encoder = find_encoder(connector, type);
}
nouveau_connector_set_encoder(connector, nv_encoder);
@ -292,9 +296,9 @@ nouveau_connector_detect(struct drm_connector *connector, bool force)
}
detect_analog:
nv_encoder = find_encoder_by_type(connector, OUTPUT_ANALOG);
nv_encoder = find_encoder(connector, OUTPUT_ANALOG);
if (!nv_encoder && !nouveau_tv_disable)
nv_encoder = find_encoder_by_type(connector, OUTPUT_TV);
nv_encoder = find_encoder(connector, OUTPUT_TV);
if (nv_encoder && force) {
struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
struct drm_encoder_helper_funcs *helper =
@ -327,7 +331,7 @@ nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
nv_connector->edid = NULL;
}
nv_encoder = find_encoder_by_type(connector, OUTPUT_LVDS);
nv_encoder = find_encoder(connector, OUTPUT_LVDS);
if (!nv_encoder)
return connector_status_disconnected;
@ -405,7 +409,7 @@ nouveau_connector_force(struct drm_connector *connector)
} else
type = OUTPUT_ANY;
nv_encoder = find_encoder_by_type(connector, type);
nv_encoder = find_encoder(connector, type);
if (!nv_encoder) {
NV_ERROR(connector->dev, "can't find encoder to force %s on!\n",
drm_get_connector_name(connector));