diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_connector.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_connector.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 4b286a8c30c8..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) @@ -666,7 +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); |