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

From: Srinivas Kandagatla
Date: Wed Feb 03 2016 - 03:48:45 EST




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.