diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_connector.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_connector.c | 65 |
1 files changed, 35 insertions, 30 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 496e7dcd6b7d..4e28e89b51dc 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -538,6 +538,19 @@ nouveau_connector_set_encoder(struct drm_connector *connector, } } +static void +nouveau_connector_set_edid(struct nouveau_connector *nv_connector, + struct edid *edid) +{ + if (nv_connector->edid != edid) { + struct edid *old_edid = nv_connector->edid; + + drm_connector_update_edid_property(&nv_connector->base, edid); + kfree(old_edid); + nv_connector->edid = edid; + } +} + static enum drm_connector_status nouveau_connector_detect(struct drm_connector *connector, bool force) { @@ -551,13 +564,6 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) int ret; enum drm_connector_status conn_status = connector_status_disconnected; - /* Cleanup the previous EDID block. */ - if (nv_connector->edid) { - drm_connector_update_edid_property(connector, NULL); - kfree(nv_connector->edid); - nv_connector->edid = NULL; - } - /* Outputs are only polled while runtime active, so resuming the * device here is unnecessary (and would deadlock upon runtime suspend * because it waits for polling to finish). We do however, want to @@ -570,22 +576,23 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) ret = pm_runtime_get_sync(dev->dev); if (ret < 0 && ret != -EACCES) { pm_runtime_put_autosuspend(dev->dev); + nouveau_connector_set_edid(nv_connector, NULL); return conn_status; } } nv_encoder = nouveau_connector_ddc_detect(connector); if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) { + struct edid *new_edid; + if ((vga_switcheroo_handler_flags() & VGA_SWITCHEROO_CAN_SWITCH_DDC) && nv_connector->type == DCB_CONNECTOR_LVDS) - nv_connector->edid = drm_get_edid_switcheroo(connector, - i2c); + new_edid = drm_get_edid_switcheroo(connector, i2c); else - nv_connector->edid = drm_get_edid(connector, i2c); + new_edid = drm_get_edid(connector, i2c); - drm_connector_update_edid_property(connector, - nv_connector->edid); + nouveau_connector_set_edid(nv_connector, new_edid); if (!nv_connector->edid) { NV_ERROR(drm, "DDC responded, but no EDID for %s\n", connector->name); @@ -619,6 +626,8 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) conn_status = connector_status_connected; drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid); goto out; + } else { + nouveau_connector_set_edid(nv_connector, NULL); } nv_encoder = nouveau_connector_of_detect(connector); @@ -661,24 +670,20 @@ nouveau_connector_detect_lvds(struct drm_connector *connector, bool force) struct nouveau_drm *drm = nouveau_drm(dev); struct nouveau_connector *nv_connector = nouveau_connector(connector); struct nouveau_encoder *nv_encoder = NULL; + struct edid *edid = NULL; enum drm_connector_status status = connector_status_disconnected; - /* Cleanup the previous EDID block. */ - if (nv_connector->edid) { - drm_connector_update_edid_property(connector, NULL); - kfree(nv_connector->edid); - nv_connector->edid = NULL; - } - nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS); if (!nv_encoder) - return connector_status_disconnected; + goto out; /* Try retrieving EDID via DDC */ if (!drm->vbios.fp_no_ddc) { status = nouveau_connector_detect(connector, force); - if (status == connector_status_connected) + if (status == connector_status_connected) { + edid = nv_connector->edid; goto out; + } } /* On some laptops (Sony, i'm looking at you) there appears to @@ -691,7 +696,8 @@ nouveau_connector_detect_lvds(struct drm_connector *connector, bool force) * valid - it's not (rh#613284) */ if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) { - if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) { + edid = nouveau_acpi_edid(dev, connector); + if (edid) { status = connector_status_connected; goto out; } @@ -711,12 +717,10 @@ nouveau_connector_detect_lvds(struct drm_connector *connector, bool force) * stored for the panel stored in them. */ if (!drm->vbios.fp_no_ddc) { - struct edid *edid = - (struct edid *)nouveau_bios_embedded_edid(dev); + edid = (struct edid *)nouveau_bios_embedded_edid(dev); if (edid) { - nv_connector->edid = - kmemdup(edid, EDID_LENGTH, GFP_KERNEL); - if (nv_connector->edid) + edid = kmemdup(edid, EDID_LENGTH, GFP_KERNEL); + if (edid) status = connector_status_connected; } } @@ -729,8 +733,9 @@ out: status = connector_status_unknown; #endif - drm_connector_update_edid_property(connector, nv_connector->edid); - nouveau_connector_set_encoder(connector, nv_encoder); + nouveau_connector_set_edid(nv_connector, edid); + if (nv_encoder) + nouveau_connector_set_encoder(connector, nv_encoder); return status; } @@ -971,7 +976,7 @@ nouveau_connector_get_modes(struct drm_connector *connector) * "native" mode as some VBIOS tables require us to use the * pixel clock as part of the lookup... */ - if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS) + if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS && nv_connector->native_mode) nouveau_connector_detect_depth(connector); if (nv_encoder->dcb->type == DCB_OUTPUT_TV) |