drm/dsi: Support device shutdown

Hook up the MIPI DSI bus's .shutdown() function to allow drivers to
implement code that should be run when a device is shut down.

Signed-off-by: Thierry Reding <treding@nvidia.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_mipi_dsi.c b/drivers/gpu/drm/drm_mipi_dsi.c
index 09821f46d768..e633df2f68d8 100644
--- a/drivers/gpu/drm/drm_mipi_dsi.c
+++ b/drivers/gpu/drm/drm_mipi_dsi.c
@@ -282,6 +282,14 @@ static int mipi_dsi_drv_remove(struct device *dev)
         return drv->remove(dsi);
 }
 
+static void mipi_dsi_drv_shutdown(struct device *dev)
+{
+        struct mipi_dsi_driver *drv = to_mipi_dsi_driver(dev->driver);
+        struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev);
+
+        drv->shutdown(dsi);
+}
+
 /**
  * mipi_dsi_driver_register - register a driver for DSI devices
  * @drv: DSI driver structure
@@ -293,6 +301,8 @@ int mipi_dsi_driver_register(struct mipi_dsi_driver *drv)
                 drv->driver.probe = mipi_dsi_drv_probe;
         if (drv->remove)
                 drv->driver.remove = mipi_dsi_drv_remove;
+        if (drv->shutdown)
+                drv->driver.shutdown = mipi_dsi_drv_shutdown;
 
         return driver_register(&drv->driver);
 }