Re: [PATCH v24 16/34] ASoC: qcom: qdsp6: q6afe: Increase APR timeout

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On 8/1/24 03:17, Wesley Cheng wrote:
> For USB offloading situations, the AFE port start command will result in a
> QMI handshake between the Q6DSP and the main processor.  Depending on if
> the USB bus is suspended, this routine would require more time to complete,
> as resuming the USB bus has some overhead associated with it.  Increase the
> timeout to 3s to allow for sufficient time for the USB QMI stream enable
> handshake to complete.
> 
> Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
> Signed-off-by: Wesley Cheng <quic_wcheng@xxxxxxxxxxx>
> ---
>  sound/soc/qcom/qdsp6/q6afe.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/sound/soc/qcom/qdsp6/q6afe.c b/sound/soc/qcom/qdsp6/q6afe.c
> index 948007955934..452d7e8b9b30 100644
> --- a/sound/soc/qcom/qdsp6/q6afe.c
> +++ b/sound/soc/qcom/qdsp6/q6afe.c
> @@ -366,7 +366,7 @@
>  #define AFE_API_VERSION_SLOT_MAPPING_CONFIG	1
>  #define AFE_API_VERSION_CODEC_DMA_CONFIG	1
>  
> -#define TIMEOUT_MS 1000
> +#define TIMEOUT_MS 3000

Surprising that 1s is not enough to resume a bus, and conversely is 3s
enough then if the overhead is so significant?
It looks like either too much or too little...

>  #define AFE_CMD_RESP_AVAIL	0
>  #define AFE_CMD_RESP_NONE	1
>  #define AFE_CLK_TOKEN		1024




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