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From: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
To: alsa-devel@alsa-project.org, tiwai@suse.de
Cc: kai.vehmanen@linux.intel.com
Subject: Question about hdac_ext_link ref_count management
Date: Thu, 21 Jan 2021 15:23:53 -0800	[thread overview]
Message-ID: <aca60b522335f3f916f9f8f204693365bfc32231.camel@linux.intel.com> (raw)

Hi Takashi,

While exploring some power optimizations on Intel platforms, I noticed
that the hdac_ext_link ref_count is incremented during codec probe
in hdac_hda_codec_probe() and the ref_count is held until the codec
device is removed. 

I was wondering if it would be possible to call the get/put for the
hdac_ext_link in the codec runtime suspend/resume callbacks so that the
link is powered up only when the link is in use. Are there any
downsides to doing this? 

Thanks,
Ranjani


             reply	other threads:[~2021-01-21 23:25 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-21 23:23 Ranjani Sridharan [this message]
2021-01-22 14:12 ` Question about hdac_ext_link ref_count management Takashi Iwai
2021-01-22 16:40   ` Ranjani Sridharan
2021-01-22 16:50     ` Takashi Iwai
2021-01-22 17:24       ` Ranjani Sridharan
2021-01-22 22:04       ` Ranjani Sridharan

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