[alsa-devel] [PATCHv2 1/4] ASoC: simple-card: add asoc_simple_card_fmt_master() to simplify the code.

[Varka Bhadram]

On 09/02/2014 02:56 PM, Xiubo Li wrote:
> Signed-off-by: Xiubo Li <Li.Xiubo at freescale.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.