The shutdown function can be called when the display is already unprepared. For example during reboot this trigger a kernel backlog. Calling the drm_panel_unprepare, allow us to avoid to trigger the kernel warning Signed-off-by: Michael Trimarchi <michael@xxxxxxxxxxxxxxxxxxxx> --- It's not obviovus if shutdown can be dropped or this problem depends on the display stack as it is implmented. More feedback is required here --- drivers/gpu/drm/panel/panel-synaptics-r63353.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panel/panel-synaptics-r63353.c b/drivers/gpu/drm/panel/panel-synaptics-r63353.c index 169c629746c7..17349825543f 100644 --- a/drivers/gpu/drm/panel/panel-synaptics-r63353.c +++ b/drivers/gpu/drm/panel/panel-synaptics-r63353.c @@ -325,7 +325,7 @@ static void r63353_panel_shutdown(struct mipi_dsi_device *dsi) { struct r63353_panel *rpanel = mipi_dsi_get_drvdata(dsi); - r63353_panel_unprepare(&rpanel->base); + drm_panel_unprepare(&rpanel->base); } static const struct r63353_desc sharp_ls068b3sx02_data = { -- 2.43.0