diff options
Diffstat (limited to 'drivers/gpu/drm/drm_sysfs.c')
| -rw-r--r-- | drivers/gpu/drm/drm_sysfs.c | 61 |
1 files changed, 53 insertions, 8 deletions
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index 5c99d3773212..ffc305fc2076 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -166,23 +166,68 @@ void drm_sysfs_destroy(void) /* * Connector properties */ -static ssize_t status_show(struct device *device, +static ssize_t status_store(struct device *device, struct device_attribute *attr, - char *buf) + const char *buf, size_t count) { struct drm_connector *connector = to_drm_connector(device); - enum drm_connector_status status; + struct drm_device *dev = connector->dev; + enum drm_connector_status old_status; int ret; - ret = mutex_lock_interruptible(&connector->dev->mode_config.mutex); + ret = mutex_lock_interruptible(&dev->mode_config.mutex); if (ret) return ret; - status = connector->funcs->detect(connector, true); - mutex_unlock(&connector->dev->mode_config.mutex); + old_status = connector->status; + + if (sysfs_streq(buf, "detect")) { + connector->force = 0; + connector->status = connector->funcs->detect(connector, true); + } else if (sysfs_streq(buf, "on")) { + connector->force = DRM_FORCE_ON; + } else if (sysfs_streq(buf, "on-digital")) { + connector->force = DRM_FORCE_ON_DIGITAL; + } else if (sysfs_streq(buf, "off")) { + connector->force = DRM_FORCE_OFF; + } else + ret = -EINVAL; + + if (ret == 0 && connector->force) { + if (connector->force == DRM_FORCE_ON || + connector->force == DRM_FORCE_ON_DIGITAL) + connector->status = connector_status_connected; + else + connector->status = connector_status_disconnected; + if (connector->funcs->force) + connector->funcs->force(connector); + } + + if (old_status != connector->status) { + DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n", + connector->base.id, + connector->name, + old_status, connector->status); + + dev->mode_config.delayed_event = true; + if (dev->mode_config.poll_enabled) + schedule_delayed_work(&dev->mode_config.output_poll_work, + 0); + } + + mutex_unlock(&dev->mode_config.mutex); + + return ret; +} + +static ssize_t status_show(struct device *device, + struct device_attribute *attr, + char *buf) +{ + struct drm_connector *connector = to_drm_connector(device); return snprintf(buf, PAGE_SIZE, "%s\n", - drm_get_connector_status_name(status)); + drm_get_connector_status_name(connector->status)); } static ssize_t dpms_show(struct device *device, @@ -339,7 +384,7 @@ static ssize_t select_subconnector_show(struct device *device, drm_get_dvi_i_select_name((int)subconnector)); } -static DEVICE_ATTR_RO(status); +static DEVICE_ATTR_RW(status); static DEVICE_ATTR_RO(enabled); static DEVICE_ATTR_RO(dpms); static DEVICE_ATTR_RO(modes); |