linux-kernel - Re: [alsa-devel] [PATCH RFC 05/15] ASoC: qcom: ipq806x: add error in dma allocation.

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Date:	Wed, 3 Feb 2016 08:48:36 +0000
From:	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:	Patrick Lai <plai@...eaurora.org>, alsa-devel@...a-project.org,
	Banajit Goswami <bgoswami@...eaurora.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
	Takashi Iwai <tiwai@...e.com>, Mark Brown <broonie@...nel.org>
Subject: Re: [alsa-devel] [PATCH RFC 05/15] ASoC: qcom: ipq806x: add error in
 dma allocation.



On 03/02/16 00:36, Kenneth Westfield wrote:
> On Mon, Feb 01, 2016 at 09:28:43AM -0800, Srinivas Kandagatla wrote:
>> diff --git a/sound/soc/qcom/lpass-ipq806x.c
>> b/sound/soc/qcom/lpass-ipq806x.c
>> index 119048c..8bdcdcb 100644
>> --- a/sound/soc/qcom/lpass-ipq806x.c
>> +++ b/sound/soc/qcom/lpass-ipq806x.c
>> @@ -65,7 +65,10 @@ static struct snd_soc_dai_driver
>> ipq806x_lpass_cpu_dai_driver = {
>>
>>   static int ipq806x_lpass_alloc_dma_channel(struct lpass_data *drvdata,
>> int dir)
>>   {
>> -	return IPQ806X_LPAIF_RDMA_CHAN_MI2S;
>> +	if (dir == SNDRV_PCM_STREAM_PLAYBACK)
>> +		return IPQ806X_LPAIF_RDMA_CHAN_MI2S;
>> +	else	/* Capture not supported */
>> +		return -EINVAL;
>>   }
>
> The comment could be read as "Capture not supported by hardware", which
> isn't true.  Maybe "Capture currently not implemented"?
Agreed, I will change this in next version.
>