ASoC: AMD: Simplify trigger handler
authorDaniel Kurtz <djkurtz@chromium.org>
Mon, 2 Jul 2018 21:19:55 +0000 (15:19 -0600)
committerMark Brown <broonie@kernel.org>
Tue, 3 Jul 2018 15:15:32 +0000 (16:15 +0100)
Now that the I2S channel names are fixed, and DMA data flow order is
consistent (ch1 then ch2), we can simplify channel start order:
start the upstream channel and then the downstream channel for both
playback and capture cases.

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/amd/acp-pcm-dma.c

index ab60129f4f266827f1478e4452bdb53e6859d240..65c1033bd51cc3ae5d921e61254f7c56843f8c5e 100644 (file)
@@ -1024,10 +1024,7 @@ static int acp_dma_trigger(struct snd_pcm_substream *substream, int cmd)
        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
        case SNDRV_PCM_TRIGGER_RESUME:
                rtd->bytescount = acp_get_byte_count(rtd);
-               if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-                       acp_dma_start(rtd->acp_mmio, rtd->ch1);
-                       acp_dma_start(rtd->acp_mmio, rtd->ch2);
-               } else {
+               if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
                        if (rtd->capture_channel == CAP_CHANNEL0) {
                                acp_dma_cap_channel_disable(rtd->acp_mmio,
                                                            CAP_CHANNEL1);
@@ -1040,9 +1037,9 @@ static int acp_dma_trigger(struct snd_pcm_substream *substream, int cmd)
                                acp_dma_cap_channel_enable(rtd->acp_mmio,
                                                           CAP_CHANNEL1);
                        }
-                       acp_dma_start(rtd->acp_mmio, rtd->ch2);
-                       acp_dma_start(rtd->acp_mmio, rtd->ch1);
                }
+               acp_dma_start(rtd->acp_mmio, rtd->ch1);
+               acp_dma_start(rtd->acp_mmio, rtd->ch2);
                ret = 0;
                break;
        case SNDRV_PCM_TRIGGER_STOP: