Re: [PATCH 1/4] ALSA: hda: Refactor codec PM to use direct-complete optimization

From: Takashi Iwai <tiwai@suse.de>
To: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: tiwai@suse.com, Jaroslav Kysela <perex@perex.cz>,
	Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
	Ranjani Sridharan <ranjani.sridharan@linux.intel.com>,
	Kai Vehmanen <kai.vehmanen@linux.intel.com>,
	Mark Brown <broonie@kernel.org>,
	Harsha Priya <harshapriya.n@intel.com>,
	Randy Dunlap <rdunlap@infradead.org>,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>,
	"moderated list:SOUND" <alsa-devel@alsa-project.org>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/4] ALSA: hda: Refactor codec PM to use direct-complete optimization
Date: Fri, 23 Oct 2020 15:04:58 +0200	[thread overview]
Message-ID: <s5h5z718551.wl-tiwai@suse.de> (raw)
In-Reply-To: <9D7D9C4C-3245-41A3-B0C4-D74FBB5FE91A@canonical.com>

On Fri, 23 Oct 2020 14:44:18 +0200,
Kai-Heng Feng wrote:
> 
> 
> 
> > On Oct 23, 2020, at 19:32, Takashi Iwai <tiwai@suse.de> wrote:
> > 
> > On Fri, 23 Oct 2020 12:23:35 +0200,
> > Kai-Heng Feng wrote:
> >> 
> >> +static void hda_codec_pm_complete(struct device *dev)
> >> {
> >> 	struct hda_codec *codec = dev_to_hda_codec(dev);
> >> -	int ret;
> >> 
> >> -	ret = pm_runtime_force_resume(dev);
> >> -	/* schedule jackpoll work for jack detection update */
> >> -	if (codec->jackpoll_interval ||
> >> -	    (pm_runtime_suspended(dev) && hda_codec_need_resume(codec)))
> >> -		schedule_delayed_work(&codec->jackpoll_work,
> >> -				      codec->jackpoll_interval);
> >> -	return ret;
> >> +	if (pm_runtime_suspended(dev) &&
> >> +	    (hda_codec_need_resume(codec) || codec->forced_resume))
> >> +		pm_request_resume(dev);
> > 
> > You shouldn't drop the check of codec->jackpoll_interval.  If this
> > field is set, the codec driver has to resume no matter what it was, so
> > that the polling can start up again.
> 
> Ok, will address in v2.

Thanks.  And, could you submit v2 series with a cover letter?

Takashi