linux-kernel - Re: [PATCHv2 1/4] ASoC: simple-card: add asoc_simple_card_fmt

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Message-ID: <54059A35.3020303@gmail.com>
Date:	Tue, 02 Sep 2014 15:51:41 +0530
From:	Varka Bhadram <varkabhadram@...il.com>
To:	Xiubo Li <Li.Xiubo@...escale.com>, broonie@...nel.org,
	perex@...ex.cz, lgirdwood@...il.com, tiwai@...e.de,
	moinejf@...e.fr, andrew@...n.ch, kuninori.morimoto.gx@...esas.com,
	jsarha@...com, devicetree@...r.kernel.org,
	alsa-devel@...a-project.org, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org
CC:	linux-kernel@...r.kernel.org
Subject: Re: [PATCHv2 1/4] ASoC: simple-card: add asoc_simple_card_fmt_master()
 to simplify the code.

On 09/02/2014 02:56 PM, Xiubo Li wrote:
> Signed-off-by: Xiubo Li <Li.Xiubo@...escale.com>
> ---
>   sound/soc/generic/simple-card.c | 61 ++++++++++++++++++++---------------------
>   1 file changed, 29 insertions(+), 32 deletions(-)
>
> diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
> index 986d2c7..cad2b30 100644
> --- a/sound/soc/generic/simple-card.c
> +++ b/sound/soc/generic/simple-card.c
> @@ -163,6 +163,26 @@ asoc_simple_card_sub_parse_of(struct device_node *np,
>   	return 0;
>   }
>   
> +static inline unsigned int
> +asoc_simple_card_fmt_master(struct device_node *np,
> +			    struct device_node *bitclkmaster,
> +			    struct device_node *framemaster)
> +{
> +	switch (((np == bitclkmaster) << 4) | (np == framemaster)) {
> +	case 0x11:
> +		return SND_SOC_DAIFMT_CBS_CFS;
> +	case 0x10:
> +		return SND_SOC_DAIFMT_CBS_CFM;
> +	case 0x01:
> +		return SND_SOC_DAIFMT_CBM_CFS;
> +	default:
> +		return SND_SOC_DAIFMT_CBM_CFM;
> +	}
> +
> +	/* Shouldn't be here */
> +	return -EINVAL;
> +}

It will be nice if we declare the switch case numbers as macros (specific name)...



-- 
Regards,
Varka Bhadram.

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