[alsa-devel] [PATCH linux-next v3 1/1] ASoC: rsnd: ssi: Request dedicated dma channels for busif0 to 7

[Kuninori Morimoto]

Hi

> Currently ssi driver only requests dma channel for SSI_0, with
> naming of 'rxu/txu', which is used to transfer data to/from busif0.
> But for GEN2/GEN3, there are also busif1 ~ busif7, which need to
> be used when SSI works in TDM Split/Ex-Split mode.
> 
> This patch adds support to firstly try to request busif indexed
> dma channel with naming "rxu[busif]/txu[busif]", if these dma channel
> don't exist, then try to request 'rxu/txu' dma channel to keep
> compatibility with platform hasn't had device-tree updated.
> 
> Signed-off-by: Jiada Wang <jiada_wang at mentor.com>
> ---

In my understanding, we agreed that we will have new "ssiu" on DT.
This means "ssi" side expansion is no longer needed.

Of course we need to consider about compatibility then.

Best regards
---
Kuninori Morimoto