diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_connector.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_connector.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 4da776f344d7..c5b36f9e9a10 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -26,6 +26,8 @@ #include <acpi/button.h> +#include <linux/pm_runtime.h> + #include <drm/drmP.h> #include <drm/drm_edid.h> #include <drm/drm_crtc_helper.h> @@ -240,6 +242,8 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) struct nouveau_encoder *nv_partner; struct nouveau_i2c_port *i2c; int type; + int ret; + enum drm_connector_status conn_status = connector_status_disconnected; /* Cleanup the previous EDID block. */ if (nv_connector->edid) { @@ -248,6 +252,10 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) nv_connector->edid = NULL; } + ret = pm_runtime_get_sync(connector->dev->dev); + if (ret < 0) + return conn_status; + i2c = nouveau_connector_ddc_detect(connector, &nv_encoder); if (i2c) { nv_connector->edid = drm_get_edid(connector, &i2c->adapter); @@ -263,7 +271,8 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) !nouveau_dp_detect(to_drm_encoder(nv_encoder))) { NV_ERROR(drm, "Detected %s, but failed init\n", drm_get_connector_name(connector)); - return connector_status_disconnected; + conn_status = connector_status_disconnected; + goto out; } /* Override encoder type for DVI-I based on whether EDID @@ -290,13 +299,15 @@ nouveau_connector_detect(struct drm_connector *connector, bool force) } nouveau_connector_set_encoder(connector, nv_encoder); - return connector_status_connected; + conn_status = connector_status_connected; + goto out; } nv_encoder = nouveau_connector_of_detect(connector); if (nv_encoder) { nouveau_connector_set_encoder(connector, nv_encoder); - return connector_status_connected; + conn_status = connector_status_connected; + goto out; } detect_analog: @@ -311,12 +322,18 @@ detect_analog: if (helper->detect(encoder, connector) == connector_status_connected) { nouveau_connector_set_encoder(connector, nv_encoder); - return connector_status_connected; + conn_status = connector_status_connected; + goto out; } } - return connector_status_disconnected; + out: + + pm_runtime_mark_last_busy(connector->dev->dev); + pm_runtime_put_autosuspend(connector->dev->dev); + + return conn_status; } static enum drm_connector_status |