On Wed, 11 Apr 2018, "Shi, Yang A" <yang.a....@intel.com> wrote:
> This issue is not related to request_module. When issue happened,
> request_module get i915 Correctly and return 0 successfully. It just
> be caused by acomp->ops is null in function snd_hdac_i915_init after
> it called Component_master_add_with_match.
> If intel_audio_init can be called before it check
> acomp->ops. Everything will goes well. But intel_audio_init is called
> too late because i915 driver go to usleep.
Please add drm.debug=14 module parameter, enable dev_dbg for your
driver, and send us the dmesg.
Jani Nikula, Intel Open Source Technology Center
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