linux-kernel - [PATCH 2/4] ASoC: fsl_sai: Add stream names for DPCM usage

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Message-ID: <da605dc6ca36c124a24c12d2dbc0bfa1a4837037.1406688049.git.nicoleotsuka@gmail.com>
Date:	Wed, 30 Jul 2014 11:10:27 +0800
From:	Nicolin Chen <nicoleotsuka@...il.com>
To:	<broonie@...nel.org>
CC:	<alsa-devel@...a-project.org>, <lgirdwood@...il.com>,
	<tiwai@...e.de>, <perex@...ex.cz>, <linux-kernel@...r.kernel.org>,
	<timur@...i.org>, <Li.Xiubo@...escale.com>,
	<linuxppc-dev@...ts.ozlabs.org>, <b42378@...escale.com>,
	<b02247@...escale.com>
Subject: [PATCH 2/4] ASoC: fsl_sai: Add stream names for DPCM usage

DPCM needs extra dapm routes in the machine driver to route audio
between Front-End and Back-End. In order to differ the stream names
in the route map from CODECs, we here add specific stream names to
SAI driver so that we can implement ASRC via DPCM to it.

Signed-off-by: Nicolin Chen <nicoleotsuka@...il.com>
---
 sound/soc/fsl/fsl_sai.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index 364410b..faa0497 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -455,12 +455,14 @@ static int fsl_sai_dai_probe(struct snd_soc_dai *cpu_dai)
 static struct snd_soc_dai_driver fsl_sai_dai = {
 	.probe = fsl_sai_dai_probe,
 	.playback = {
+		.stream_name = "CPU-Playback",
 		.channels_min = 1,
 		.channels_max = 2,
 		.rates = SNDRV_PCM_RATE_8000_96000,
 		.formats = FSL_SAI_FORMATS,
 	},
 	.capture = {
+		.stream_name = "CPU-Capture",
 		.channels_min = 1,
 		.channels_max = 2,
 		.rates = SNDRV_PCM_RATE_8000_96000,
-- 
1.8.4

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