Add a way for clients to disable all outputs.
Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx>
---
drivers/gpu/drm/drm_client_modeset.c | 20 ++++++++++++++++++++
include/drm/drm_client.h | 1 +
2 files changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c
index 9d1ab69dd8d0..b96183fadd4c 100644
--- a/drivers/gpu/drm/drm_client_modeset.c
+++ b/drivers/gpu/drm/drm_client_modeset.c
@@ -1225,3 +1225,23 @@ int drm_client_modeset_dpms(struct drm_client_dev *client, int mode)
return ret;
}
EXPORT_SYMBOL(drm_client_modeset_dpms);
+
+/**
+ * drm_client_modeset_disable() - Disable all outputs
+ * @client: DRM client
+ *
+ * This function disables all outputs by first clearing the modeset array and
+ * then committing the empty modesets.
+ *
+ * Returns:
+ * Zero on success or negative error code on failure.
+ */
+int drm_client_modeset_disable(struct drm_client_dev *client)
+{
+ mutex_lock(&client->modeset_mutex);
+ drm_client_modeset_release(client);
+ mutex_unlock(&client->modeset_mutex);
+
+ return drm_client_modeset_commit(client);
+}
+EXPORT_SYMBOL(drm_client_modeset_disable);
diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h
index 76704f48fc46..498089b647da 100644
--- a/include/drm/drm_client.h
+++ b/include/drm/drm_client.h
@@ -168,6 +168,7 @@ int drm_client_modeset_check(struct drm_client_dev *client);
int drm_client_modeset_commit_locked(struct drm_client_dev *client);
int drm_client_modeset_commit(struct drm_client_dev *client);
int drm_client_modeset_dpms(struct drm_client_dev *client, int mode);
+int drm_client_modeset_disable(struct drm_client_dev *client);
/**
* drm_client_for_each_modeset() - Iterate over client modesets
--
2.23.0
