From: Kirill Marinushkin <k.marinushkin@gmail.com>
To: Mark Brown <broonie@kernel.org>
Cc: Kirill Marinushkin <k.marinushkin@gmail.com>,
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
Pan Xiuli <xiuli.pan@linux.intel.com>,
Liam Girdwood <liam.r.girdwood@linux.intel.com>,
linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org
Subject: [PATCH 1/1] ASoC: topology: Fix bclk and fsync inversion in set_link_hw_format()
Date: Tue, 27 Feb 2018 21:33:17 +0100 [thread overview]
Message-ID: <20180227203317.17274-2-k.marinushkin@gmail.com> (raw)
In-Reply-To: <20180227203317.17274-1-k.marinushkin@gmail.com>
The values of bclk and fsync are inverted WRT the codec. But the existing
solution already works for Broadwell, see the alsa-lib config:
`alsa-lib/src/conf/topology/broadwell/broadwell.conf`
This commit provides the backwards-compatible solution to fix this misuse.
This commit goes in pair with the corresponding patch for alsa-lib.
Signed-off-by: Kirill Marinushkin <k.marinushkin@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Pan Xiuli <xiuli.pan@linux.intel.com>
Cc: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Cc: linux-kernel@vger.kernel.org
Cc: alsa-devel@alsa-project.org
---
include/uapi/sound/asoc.h | 16 ++++++++++++++--
sound/soc/soc-topology.c | 12 +++++++-----
2 files changed, 21 insertions(+), 7 deletions(-)
diff --git a/include/uapi/sound/asoc.h b/include/uapi/sound/asoc.h
index 69c37ecbff7e..f0e5e21efa54 100644
--- a/include/uapi/sound/asoc.h
+++ b/include/uapi/sound/asoc.h
@@ -160,6 +160,18 @@
#define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS (1 << 2)
#define SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP (1 << 3)
+/* DAI topology BCLK parameter
+ * For the backwards capability, by default codec is bclk master
+ */
+#define SND_SOC_TPLG_BCLK_CM 0 /* codec is bclk master */
+#define SND_SOC_TPLG_BCLK_CS 1 /* codec is bclk slave */
+
+/* DAI topology FSYNC parameter
+ * For the backwards capability, by default codec is fsync master
+ */
+#define SND_SOC_TPLG_FSYNC_CM 0 /* codec is fsync master */
+#define SND_SOC_TPLG_FSYNC_CS 1 /* codec is fsync slave */
+
/*
* Block Header.
* This header precedes all object and object arrays below.
@@ -315,8 +327,8 @@ struct snd_soc_tplg_hw_config {
__u8 clock_gated; /* 1 if clock can be gated to save power */
__u8 invert_bclk; /* 1 for inverted BCLK, 0 for normal */
__u8 invert_fsync; /* 1 for inverted frame clock, 0 for normal */
- __u8 bclk_master; /* 1 for master of BCLK, 0 for slave */
- __u8 fsync_master; /* 1 for master of FSYNC, 0 for slave */
+ __u8 bclk_master; /* SND_SOC_TPLG_BCLK_ value */
+ __u8 fsync_master; /* SND_SOC_TPLG_FSYNC_ value */
__u8 mclk_direction; /* 0 for input, 1 for output */
__le16 reserved; /* for 32bit alignment */
__le32 mclk_rate; /* MCLK or SYSCLK freqency in Hz */
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 01a50413c66f..c5bdc673b195 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -1994,13 +1994,15 @@ static void set_link_hw_format(struct snd_soc_dai_link *link,
link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
/* clock masters */
- bclk_master = hw_config->bclk_master;
- fsync_master = hw_config->fsync_master;
- if (!bclk_master && !fsync_master)
+ bclk_master = (hw_config->bclk_master ==
+ SND_SOC_TPLG_BCLK_CM);
+ fsync_master = (hw_config->fsync_master ==
+ SND_SOC_TPLG_FSYNC_CM);
+ if (bclk_master && fsync_master)
link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
- else if (bclk_master && !fsync_master)
- link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
else if (!bclk_master && fsync_master)
+ link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
+ else if (bclk_master && !fsync_master)
link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
else
link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
--
2.13.6
next prev parent reply other threads:[~2018-02-27 20:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20180227155758.GD11822@sirena.org.uk>
2018-02-27 20:33 ` [PATCH 0/1] Re: Applied "ASoC: topology: Fix logical inversion in set_link_hw_format()" to the asoc tree Kirill Marinushkin
2018-02-27 20:33 ` Kirill Marinushkin [this message]
2018-04-16 17:15 ` Applied "ASoC: topology: Fix bclk and fsync " Mark Brown
2018-02-28 6:31 ` [alsa-devel] [PATCH 0/1] Re: Applied "ASoC: topology: Fix logical " Pierre-Louis Bossart
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