diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_connector.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_connector.c | 54 |
1 files changed, 53 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index fc737037f751..0871495096fa 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -76,6 +76,22 @@ nouveau_encoder_connector_get(struct nouveau_encoder *encoder) return NULL; } +/*TODO: This could use improvement, and learn to handle the fixed + * BIOS tables etc. It's fine currently, for its only user. + */ +int +nouveau_connector_bpp(struct drm_connector *connector) +{ + struct nouveau_connector *nv_connector = nouveau_connector(connector); + + if (nv_connector->edid && nv_connector->edid->revision >= 4) { + u8 bpc = ((nv_connector->edid->input & 0x70) >> 3) + 4; + if (bpc > 4) + return bpc; + } + + return 18; +} static void nouveau_connector_destroy(struct drm_connector *drm_connector) @@ -130,6 +146,36 @@ nouveau_connector_ddc_detect(struct drm_connector *connector, return NULL; } +static struct nouveau_encoder * +nouveau_connector_of_detect(struct drm_connector *connector) +{ +#ifdef __powerpc__ + struct drm_device *dev = connector->dev; + struct nouveau_connector *nv_connector = nouveau_connector(connector); + struct nouveau_encoder *nv_encoder; + 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)))) + return NULL; + + for_each_child_of_node(dn, cn) { + const char *name = of_get_property(cn, "name", NULL); + const void *edid = of_get_property(cn, "EDID", NULL); + int idx = name ? name[strlen(name) - 1] - 'A' : 0; + + if (nv_encoder->dcb->i2c_index == idx && edid) { + nv_connector->edid = + kmemdup(edid, EDID_LENGTH, GFP_KERNEL); + of_node_put(cn); + return nv_encoder; + } + } +#endif + return NULL; +} + static void nouveau_connector_set_encoder(struct drm_connector *connector, struct nouveau_encoder *nv_encoder) @@ -225,6 +271,12 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) return connector_status_connected; } + nv_encoder = nouveau_connector_of_detect(connector); + if (nv_encoder) { + nouveau_connector_set_encoder(connector, nv_encoder); + return connector_status_connected; + } + detect_analog: nv_encoder = find_encoder_by_type(connector, OUTPUT_ANALOG); if (!nv_encoder && !nouveau_tv_disable) @@ -630,7 +682,7 @@ nouveau_connector_mode_valid(struct drm_connector *connector, else max_clock = nv_encoder->dp.link_nr * 162000; - clock *= 3; + clock = clock * nouveau_connector_bpp(connector) / 8; break; default: BUG_ON(1); |