Hi Morimoto-san
On 2018/09/28 9:08, Kuninori Morimoto wrote:
Hi Jiada
Cc: linux-renesas-soc ML
Thank you for your patch
From: Jiada Wang <jiada_wang@xxxxxxxxxx>
Currently ssi driver only request dma channel for SSI_0,
which is used to transfer data to/from busif0.
But since busif1 to busif7 also maybe used, dedicated dma channels
are request for data transfer between these busif.
Signed-off-by: Jiada Wang <jiada_wang@xxxxxxxxxx>
---
(snip)
@@ -938,12 +940,20 @@ static struct dma_chan *rsnd_ssi_dma_req(struct rsnd_dai_stream *io,
{
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
int is_play = rsnd_io_is_play(io);
- char *name;
+ int busif = rsnd_ssi_get_busif(io);
+ char name[SSI_DMA_NAME_SIZE];
- if (rsnd_ssi_use_busif(io))
- name = is_play ? "rxu" : "txu";
- else
- name = is_play ? "rx" : "tx";
+ if (rsnd_ssi_use_busif(io)) {
+ if (is_play)
+ snprintf(name, SSI_DMA_NAME_SIZE, "rxu%d", busif);
+ else
+ snprintf(name, SSI_DMA_NAME_SIZE, "txu%d", busif);
+ } else {
+ if (is_play)
+ snprintf(name, SSI_DMA_NAME_SIZE, "rx");
+ else
+ snprintf(name, SSI_DMA_NAME_SIZE, "tx");
+ }
Unfortunately, this patch breaks "git bisect", and Gen2 platforms.
We need to keep existing "rxu/txu" more. Please consider compatibility.
# we can remove it 2 or 3 version later ?
If the commit which has this patch, but doesn't have [02/xx] or later,
it can't use BUSIF.
And your patch doesn't care Gen2 series.
DT compatibility is very sensitive...
Thanks for your review comments, I will send out v2 patch set to take
care of GEN2 series,
and move this patch after other DT related patches
Thanks,
Jiada
