[alsa-devel] Applied "ASoC: SOF: use common code to send PCM_FREE IPC" to the asoc tree

[Mark Brown]

The patch

   ASoC: SOF: use common code to send PCM_FREE IPC

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.4

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 a49b687192752bd373f33551520cc98389460ad0 Mon Sep 17 00:00:00 2001
From: Kai Vehmanen <kai.vehmanen at linux.intel.com>
Date: Mon, 22 Jul 2019 09:13:44 -0500
Subject: [PATCH] ASoC: SOF: use common code to send PCM_FREE IPC

Remove duplicated code by using a common helper function
to send the PCM_FREE IPC message to FW.

Signed-off-by: Kai Vehmanen <kai.vehmanen at linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Link: https://lore.kernel.org/r/20190722141402.7194-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 sound/soc/sof/pcm.c | 50 ++++++++++++++++++++++-----------------------
 1 file changed, 25 insertions(+), 25 deletions(-)

diff --git a/sound/soc/sof/pcm.c b/sound/soc/sof/pcm.c
index 3b8955e755b2..8612896673a5 100644
--- a/sound/soc/sof/pcm.c
+++ b/sound/soc/sof/pcm.c
@@ -216,6 +216,27 @@ static int sof_pcm_hw_params(struct snd_pcm_substream *substream,
 	return ret;
 }
 
+static int sof_pcm_dsp_pcm_free(struct snd_pcm_substream *substream,
+				struct snd_sof_dev *sdev,
+				struct snd_sof_pcm *spcm)
+{
+	struct sof_ipc_stream stream;
+	struct sof_ipc_reply reply;
+	int ret;
+
+	stream.hdr.size = sizeof(stream);
+	stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_FREE;
+	stream.comp_id = spcm->stream[substream->stream].comp_id;
+
+	/* send IPC to the DSP */
+	ret = sof_ipc_tx_message(sdev->ipc, stream.hdr.cmd, &stream,
+				 sizeof(stream), &reply, sizeof(reply));
+	if (!ret)
+		spcm->prepared[substream->stream] = false;
+
+	return ret;
+}
+
 static int sof_pcm_hw_free(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
@@ -223,8 +244,6 @@ static int sof_pcm_hw_free(struct snd_pcm_substream *substream)
 		snd_soc_rtdcom_lookup(rtd, DRV_NAME);
 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
 	struct snd_sof_pcm *spcm;
-	struct sof_ipc_stream stream;
-	struct sof_ipc_reply reply;
 	int ret;
 
 	/* nothing to do for BE */
@@ -241,13 +260,7 @@ static int sof_pcm_hw_free(struct snd_pcm_substream *substream)
 	dev_dbg(sdev->dev, "pcm: free stream %d dir %d\n", spcm->pcm.pcm_id,
 		substream->stream);
 
-	stream.hdr.size = sizeof(stream);
-	stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_FREE;
-	stream.comp_id = spcm->stream[substream->stream].comp_id;
-
-	/* send IPC to the DSP */
-	ret = sof_ipc_tx_message(sdev->ipc, stream.hdr.cmd, &stream,
-				 sizeof(stream), &reply, sizeof(reply));
+	ret = sof_pcm_dsp_pcm_free(substream, sdev, spcm);
 
 	snd_pcm_lib_free_pages(substream);
 
@@ -260,8 +273,6 @@ static int sof_pcm_hw_free(struct snd_pcm_substream *substream)
 	if (ret < 0)
 		dev_err(sdev->dev, "error: platform hw free failed\n");
 
-	spcm->prepared[substream->stream] = false;
-
 	return ret;
 }
 
@@ -365,21 +376,10 @@ static int sof_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	ret = sof_ipc_tx_message(sdev->ipc, stream.hdr.cmd, &stream,
 				 sizeof(stream), &reply, sizeof(reply));
 
-	if (ret < 0 || !reset_hw_params)
-		return ret;
-
-	/*
-	 * In case of stream is stopped, DSP must be reprogrammed upon
-	 * restart, so free PCM here.
-	 */
-	stream.hdr.size = sizeof(stream);
-	stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_FREE;
-	stream.comp_id = spcm->stream[substream->stream].comp_id;
-	spcm->prepared[substream->stream] = false;
+	if (!ret && reset_hw_params)
+		ret = sof_pcm_dsp_pcm_free(substream, sdev, spcm);
 
-	/* send IPC to the DSP */
-	return sof_ipc_tx_message(sdev->ipc, stream.hdr.cmd, &stream,
-				  sizeof(stream), &reply, sizeof(reply));
+	return ret;
 }
 
 static snd_pcm_uframes_t sof_pcm_pointer(struct snd_pcm_substream *substream)
-- 
2.20.1