[alsa-devel] [PATCH] ASoC: codec: hdac_hdmi add device_link to card device

Yang, Libin libin.yang at intel.com
Fri Apr 12 16:33:16 CEST 2019


>>
>>>>> +	device_link_add(component->card->dev, &hdev->dev,
>>>> DL_FLAG_RPM_ACTIVE |
>>>>> +			DL_FLAG_AUTOREMOVE_CONSUMER);
>>>>
>>>> Should device_link_free() be added to hdmi_codec_remove then?
>>>
>>> As Takashi suggested, I add the DL_FLAG_AUTOREMOVE_CONSUMER flag.
>>> This will make sure the link will be freed when machine driver are removed.
>>> And as machine driver depends on the hdac_hdmi module, when
>>> hdmi_codec_remove() is called, the link is freed already.
>>
>>ok, maybe adding a comment would help dummies like me who didn't know
>>about this flag? Thanks!
>
>Thanks for suggestion. I will add the comment.

After a second thought, is there any possibility that the machine driver does
not depend on the hdac_hdmi module? I checked our current driver,
there is the dependency between machine driver and hdac_hdmi module.

Regards,
Libin



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