linux-kernel - RE: [alsa-devel] [PATCHv1 1/7] ASoC: simple-card: Merge single and muti DAI link code.

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Date:	Tue, 2 Sep 2014 09:15:54 +0000
From:	"Li.Xiubo@...escale.com" <Li.Xiubo@...escale.com>
To:	Kuninori Morimoto <kuninori.morimoto.gx@...il.com>
CC:	"broonie@...nel.org" <broonie@...nel.org>,
	"lgirdwood@...il.com" <lgirdwood@...il.com>,
	"perex@...ex.cz" <perex@...ex.cz>, "tiwai@...e.de" <tiwai@...e.de>,
	"kuninori.morimoto.gx@...esas.com" <kuninori.morimoto.gx@...esas.com>,
	"moinejf@...e.fr" <moinejf@...e.fr>,
	"andrew@...n.ch" <andrew@...n.ch>, "jsarha@...com" <jsarha@...com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-sh@...r.kernel.org" <linux-sh@...r.kernel.org>,
	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	Shawn Guo <Shawn.Guo@...escale.com>,
	"Nicolin Chen" <nicoleotsuka@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [alsa-devel] [PATCHv1 1/7] ASoC: simple-card: Merge single and
 muti	DAI link code.

Hi Kuninori-san

This patch series will break the old DTs, and I will follow Mark's
Advice to maintain compatibility with the old DTs.

I will send another version, please help me to review it. And I will also
split the update patch series to many small ones.

Thanks very much,

BRs
Xiubo

> -----Original Message-----
> From: Kuninori Morimoto [mailto:kuninori.morimoto.gx@...il.com]
> Sent: Monday, September 01, 2014 3:43 PM
> To: Xiubo Li-B47053
> Cc: broonie@...nel.org; lgirdwood@...il.com; perex@...ex.cz; tiwai@...e.de;
> kuninori.morimoto.gx@...esas.com; moinejf@...e.fr; andrew@...n.ch;
> jsarha@...com; devicetree@...r.kernel.org; linux-arm-
> kernel@...ts.infradead.org; linux-sh@...r.kernel.org; alsa-devel@...a-
> project.org; Guo Shawn-R65073; Nicolin Chen; linux-kernel@...r.kernel.org
> Subject: Re: [alsa-devel] [PATCHv1 1/7] ASoC: simple-card: Merge single and
> muti DAI link code.
> 
> 
> Hi Xiubo
> 
> Thank you for your patch.
> This clean-up is very nice for me.
> But, I have 1 small comment
> 
> >  asoc_simple_card_sub_parse_of(struct device_node *np,
> >  			      struct asoc_simple_dai *dai,
> >  			      struct device_node **p_node,
> > -			      const char **name)
> > +			      const char **name,
> > +			      unsigned int *daifmt)
> >  {
> >  	struct device_node *node;
> >  	struct clk *clk;
> >  	u32 val;
> >  	int ret;
> >
> > +	if (!daifmt)
> > +		return -EINVAL;
> > +
> > +	/*
> > +	 * Parse format, bitclock-inversion and frame-inversion
> > +	 * for DAI each device.
> > +	 */
> > +	*daifmt = snd_soc_of_parse_daifmt(np, NULL, NULL, NULL);
> > +	*daifmt &= ~(SND_SOC_DAIFMT_MASTER_MASK | SND_SOC_DAIFMT_FORMAT_MASK);
> (snip)
> >  	ret = asoc_simple_card_sub_parse_of(np, &dai_props->cpu_dai,
> >  					    &dai_link->cpu_of_node,
> > -					    &dai_link->cpu_dai_name);
> > +					    &dai_link->cpu_dai_name,
> > +					    &daifmt);
> (snip)
> > +	dai_props->cpu_dai.fmt |= daifmt;
> (snip)
> >  	ret = asoc_simple_card_sub_parse_of(np, &dai_props->codec_dai,
> >  					    &dai_link->codec_of_node,
> > -					    &dai_link->codec_dai_name);
> > +					    &dai_link->codec_dai_name,
> > +					    &daifmt);
> (snip)
> > +	dai_props->codec_dai.fmt |= daifmt;
> 
> These are using
> 
>       asoc_simple_card_sub_parse_of(np, &dai_props->cpu_dai, xxx)
>       asoc_simple_card_sub_parse_of(np, &dai_props->codec_dai, xxx)
> 
> I guess, asoc_simple_card_sub_parse_of() can update
> below inside function
> 
> 	dai_props->cpu_dai.fmt |= daifmt;
> 	dai_props->codec_dai.fmt |= daifmt;
> 
> 
> Best regards
> ---
> Kuninori Morimoto
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