From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sriram Periyasamy <sriramx.periyasamy@intel.com>
Subject: Re: [RESEND][PATCH] ASoC: hdac_hdmi: Program
 pin-port-mux during jack report event
Date: Thu, 21 Jun 2018 13:24:20 +0530
Message-ID: <20180621075419.GA10037@intel.com>
References: <1529492902-6600-1-git-send-email-sriramx.periyasamy@intel.com>
 <s5ho9g5mx2e.wl-tiwai@suse.de>
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To: Takashi Iwai <tiwai@suse.de>
Cc: ALSA ML <alsa-devel@alsa-project.org>, Patches Audio <patches.audio@intel.com>, Guneshwor Singh <guneshwor.o.singh@intel.com>, Liam Girdwood <liam.r.girdwood@linux.intel.com>, Mark Brown <broonie@kernel.org>, Jeeja KP <jeeja.kp@intel.com>, Sanyog Kale <sanyog.r.kale@intel.com>
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On Wed, Jun 20, 2018 at 03:01:13PM +0200, Takashi Iwai wrote:
> On Wed, 20 Jun 2018 13:08:21 +0200,
> Sriram Periyasamy wrote:
> > 
> > During d3/d0 cycle, the connection selection index of all pins points
> > to the default value. This needs to be restored to ensure audio is
> > restored after d3/d0 cycle.
> > 
> > So store the connection selection index and program it during jack
> > report event which gets invoked in cases like d3/d0 cycle, hot plug
> > detection when multiple displays are connected.
> 
> Hm, I thought *_CONNECT_SEL being cached and restored at resume
> already by regmap?
> 

Yes, legacy HDA HDMI driver has this method whereas ASoC based HDAC HDMI
driver doesn't use regmap. Hence we needed this solution.

Thanks,
Sriram.