Hi Jagan, On Wed, 3 Feb 2021 at 09:13, Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx> wrote: > @@ -1167,6 +1151,20 @@ __dw_mipi_dsi_probe(struct platform_device *pdev, > dw_mipi_dsi_debugfs_init(dsi); > pm_runtime_enable(dev); > > + ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, > + &panel, &bridge); > + if (ret) > + return ERR_PTR(ret); On RK3399 if the error is EPROBE_DEFER, __dw_mipi_dsi_probe can be called again and result in the following errors: [ 0.717589] debugfs: Directory 'ff960000.mipi' with parent '/' already present! [ 0.717601] dw-mipi-dsi-rockchip ff960000.mipi: failed to create debugfs root [ 0.717606] dw-mipi-dsi-rockchip ff960000.mipi: Unbalanced pm_runtime_enable! Regards, Jonathan
