Re: [alsa-devel] [PATCH v5 1/7] drm: sunxi: Add a basic DRM driver for Allwinner DE2

On Tue, 25 Oct 2016 08:44:22 +0200 Daniel Vetter daniel@ffwll.ch wrote:

...

• /* start the subdevices */
• ret = component_bind_all(dev, drm);
• if (ret < 0)

• goto out2;
  

• ret = drm_dev_register(drm, 0);

This needs to be the very last step in your driver load sequence. Kerneldoc explains why. Similar, but inverted for unloading: drm_dev_unregister is the very first thing you must call.

Thanks, and also for embedding the drm device.