Subject: [PATCH v4] Sound: PXA: Fix settings of PXAxxx DMA

From: [email-masked] (Daniel Mack)
Date: Thu, 29 Jan 2015 12:02:38 +0100

On 01/29/2015 11:58 AM, Petr Cvek wrote:
> Fix PXA DMA autoincrementation, so capture will not use playback settings
> (incrementation in register space instead in target buffer).
> 
> Signed-off-by: Petr Cvek <[email-masked]>

Yes, that's actually a regression from d65a14587 ("ASoC: pxa: use
snd_dmaengine_dai_dma_data"). Your fix seems right to me, thanks for
spotting this.

Acked-by: Daniel Mack <[email-masked]>

Daniel

> ---
>  sound/arm/pxa2xx-pcm-lib.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/sound/arm/pxa2xx-pcm-lib.c b/sound/arm/pxa2xx-pcm-lib.c
> index 01f8fdc..f8ca3ca 100644
> --- a/sound/arm/pxa2xx-pcm-lib.c
> +++ b/sound/arm/pxa2xx-pcm-lib.c
> @@ -45,7 +45,12 @@ int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
>  	size_t period = params_period_bytes(params);
>  	pxa_dma_desc *dma_desc;
>  	dma_addr_t dma_buff_phys, next_desc_phys;
> -	u32 dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG;
> +	u32 dcmd = 0;
> +
> +	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
> +		dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG;
> +	else
> +		dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC;
>  
>  	/* temporary transition hack */
>  	switch (rtd->params->addr_width) {
>