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

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Date:	Mon, 01 Sep 2014 00:42:47 -0700 (PDT)
From:	Kuninori Morimoto <kuninori.morimoto.gx@...il.com>
To:	Xiubo Li <Li.Xiubo@...escale.com>
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>, <shawn.guo@...escale.com>,
	Nicolin Chen <nicoleotsuka@...il.com>,
	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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