[Sound-open-firmware] [PATCH] host: Stop dma when pause

[Keyon Jie]

On 2018年03月15日 13:19, Xiuli Pan wrote:
> From: Pan Xiuli <xiuli.pan at linux.intel.com>
> 
> For gw-dma host, we need to stop the dma to make sure status are correct
> for resume.
> 
> Signed-off-by: Pan Xiuli <xiuli.pan at linux.intel.com>
> 
> ---
> Test with:
> Mininow max rt5651 and GP-MRB nocodec
> SOF 1.1-stable: aa09938fd330232b201f5683faf8e32975ffcfac
> SOF-Tool 1.1-stable: 8d9b8d51f9c60e1c1725e9ccd3da22c0b523d0cf
> https://github.com/plbossart/sound/tree/topic/sof-v4.14:
> 84ed2d3ba0220424dd441f3a28ed2fe83967ad3a
> ---
>   src/audio/host.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/src/audio/host.c b/src/audio/host.c
> index 287c886..744ca02 100644
> --- a/src/audio/host.c
> +++ b/src/audio/host.c
> @@ -465,6 +465,9 @@ static int host_cmd(struct comp_dev *dev, int cmd, void *data)
>   		return ret;
>   
>   	switch (cmd) {
> +	case COMP_CMD_PAUSE:
> +		dma_stop(hd->dma, hd->chan);
> +		break;

Hi Xiuli, do we need a dma_start() invoking for COMP_CMD_RELEASE also?

Thanks,
~Keyon

>   	case COMP_CMD_STOP:
>   		ret = host_stop(dev);
>   		break;
>