[alsa-devel] [PATCH v2 1/3] ARM: shmobile: armadillo800eva: Properly specify HDMI audio link format

[Kuninori Morimoto]

Hi Lars

Thank you for your patch

> The DAI link format should be specified for the whole link rather than just
> one component on the link. So move the format specification for the HDMI
> audio link from the CPU component to the link itself.
> 
> Since the sh-mobile-hdmi DAI driver doesn't implement the set_fmt() callback
> in this case there is no functional difference between only specifying the
> the format for the CPU side or for the whole link, but the later it will
> allow us to remove support for just specifying the format for one component.
> 
> Signed-off-by: Lars-Peter Clausen <lars at metafoo.de>
> ---
> No changes since v1.
> ---
>  arch/arm/mach-shmobile/board-armadillo800eva.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c
> index 6d949f1..75de26c 100644
> --- a/arch/arm/mach-shmobile/board-armadillo800eva.c
> +++ b/arch/arm/mach-shmobile/board-armadillo800eva.c
> @@ -1040,9 +1040,9 @@ static struct asoc_simple_card_info fsi2_hdmi_info = {
>  	.card		= "FSI2B-HDMI",
>  	.codec		= "sh-mobile-hdmi",
>  	.platform	= "sh_fsi2",
> +	.daifmt		= SND_SOC_DAIFMT_CBS_CFS,
>  	.cpu_dai = {
>  		.name	= "fsib-dai",
> -		.fmt	= SND_SOC_DAIFMT_CBS_CFS,
>  	},
>  	.codec_dai = {
>  		.name = "sh_mobile_hdmi-hifi",

I guess if you want to use common .daifmt, it should be same as "codec" side.
(cpu side "S" means, codec / daifmt side "M")
So, this mean above should be

@@ -1040,9 +1040,9 @@ static struct asoc_simple_card_info fsi2_hdmi_info = {
 	.card		= "FSI2B-HDMI",
 	.codec		= "sh-mobile-hdmi",
 	.platform	= "sh_fsi2",
+	.daifmt		= SND_SOC_DAIFMT_CBM_CFM,   <=
 	.cpu_dai = {
		.name	= "fsib-dai",
-		.fmt	= SND_SOC_DAIFMT_CBS_CFS,
 	},

c7a507eea1db1430476289f525f9c853d5d485e8
(ASoC: fsi: fixup SND_SOC_DAIFMT_CBx_CFx flags)
can be good example ?
(I wonder what happen on armadillo800eva ?)

Best regards
---
Kuninori Morimoto