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SubjectApplied "ASoC: AMD: Simplify trigger handler" to the asoc tree
Date
The patch

ASoC: AMD: Simplify trigger handler

has been applied to the asoc tree at

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

From df61f9f76609456efbc60d495b3235baf7d07691 Mon Sep 17 00:00:00 2001
From: Daniel Kurtz <djkurtz@chromium.org>
Date: Mon, 2 Jul 2018 15:19:55 -0600
Subject: [PATCH] ASoC: AMD: Simplify trigger handler

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 | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
index ab60129f4f26..65c1033bd51c 100644
--- a/sound/soc/amd/acp-pcm-dma.c
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -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:
--
2.18.0.rc2
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