[alsa-devel] [PATCH 2/3] ASoC: simple-card: make sysclk index configurable

[Kuninori Morimoto]

Hi Daniel

> The simple-card driver currently hard-codes the clk_id parameter in
> snd_soc_dai_set_sysclk() to 0. Make this configrable for both CPU and
> codec dai sub-nodes.
> 
> This still has the limitation that only one clk_id can be configured, but it
> should help some more platforms to use simple-card in favor to a more
> specific machine driver.
> 
> Signed-off-by: Daniel Mack <daniel at zonque.org>
> ---
>  Documentation/devicetree/bindings/sound/simple-card.txt |  3 +++
>  include/sound/simple_card_utils.h                       |  1 +
>  sound/soc/generic/simple-card-utils.c                   |  3 +++
>  sound/soc/generic/simple-card.c                         | 10 ++++++----
>  4 files changed, 13 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt b/Documentation/devicetree/bindings/sound/simple-card.txt
> index a4c72d09cd45..c8d268285a9e 100644
> --- a/Documentation/devicetree/bindings/sound/simple-card.txt
> +++ b/Documentation/devicetree/bindings/sound/simple-card.txt
> @@ -94,6 +94,9 @@ Optional CPU/CODEC subnodes properties:
>  - system-clock-direction-out		: specifies clock direction as 'out' on
>  					  initialization. It is useful for some aCPUs with
>  					  fixed clocks.
> +- system-clock-index			: index of the system clock to use when
> +					  the mclk frequency is on the CPU/CODEC
> +					  DAI. Defaults to 0.

I'm not a DT guy, but I think DT doesn't want to have index directly ?
I don't know detail, but I guess DT want to have like

	system-mclock = <&xxxx 3>

Best regards
---
Kuninori Morimoto