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From: Kirill Marinushkin <k.marinushkin@gmail.com>
To: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Cc: Kirill Marinushkin <k.marinushkin@gmail.com>,
	Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
	alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 1/2] ASoC: topology: Add defines for snd_soc_tplg_hw_config.clock_gated
Date: Mon, 19 Feb 2018 21:36:34 +0100	[thread overview]
Message-ID: <20180219203636.3692-1-k.marinushkin@gmail.com> (raw)
In-Reply-To: <458b66ab-da0a-8063-6555-13fb152c83a4@sakamocchi.jp>

In kernel `soc-dai.h`, DAI clock gating is defined as following:

~~~~
\#define SND_SOC_DAIFMT_CONT		(1 << 4) /* continuous clock */
\#define SND_SOC_DAIFMT_GATED		(0 << 4) /* clock is gated */
~~~~

The corresponding field of struct snd_soc_tplg_hw_config cannot be used as
bool values due to the inverted logic. Therefore this commit adds the
defines for this field.

snd_soc_tplg_hw_config.clock_gated = 0 => no effect
snd_soc_tplg_hw_config.clock_gated = 1 => SND_SOC_DAIFMT_GATED
snd_soc_tplg_hw_config.clock_gated = 2 => SND_SOC_DAIFMT_CONT

Signed-off-by: Kirill Marinushkin <k.marinushkin@gmail.com>
Cc: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Cc: linux-kernel@vger.kernel.org
---
 include/uapi/sound/asoc.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/uapi/sound/asoc.h b/include/uapi/sound/asoc.h
index 69c37ecbff7e..86d0599a6f13 100644
--- a/include/uapi/sound/asoc.h
+++ b/include/uapi/sound/asoc.h
@@ -139,6 +139,11 @@
 #define SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_CHANNELS      (1 << 1)
 #define SND_SOC_TPLG_DAI_FLGBIT_SYMMETRIC_SAMPLEBITS    (1 << 2)
 
+/* DAI clock gating */
+#define SND_SOC_TPLG_DAI_CLK_GATE_UNDEFINED	0
+#define SND_SOC_TPLG_DAI_CLK_GATE_GATED	1
+#define SND_SOC_TPLG_DAI_CLK_GATE_CONT		2
+
 /* DAI physical PCM data formats.
  * Add new formats to the end of the list.
  */
@@ -312,7 +317,7 @@ struct snd_soc_tplg_hw_config {
 	__le32 size;            /* in bytes of this structure */
 	__le32 id;		/* unique ID - - used to match */
 	__le32 fmt;		/* SND_SOC_DAI_FORMAT_ format value */
-	__u8 clock_gated;	/* 1 if clock can be gated to save power */
+	__u8 clock_gated;	/* SND_SOC_TPLG_DAI_CLK_GATE_ value */
 	__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 */
-- 
2.13.6

  parent reply	other threads:[~2018-02-19 20:36 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-19  6:05 [PATCH 1/2] ASoC: topology: Rename clock_gated to clock_cont in snd_soc_tplg_hw_config Kirill Marinushkin
2018-02-19  6:05 ` [PATCH 2/2] ASoC: topology: Add missing clock gating parameter when parsing hw_configs Kirill Marinushkin
2018-02-20 17:07   ` Kirill Marinushkin
2018-02-19  6:47 ` [PATCH 1/2] ASoC: topology: Rename clock_gated to clock_cont in snd_soc_tplg_hw_config Takashi Sakamoto
2018-02-19 19:00   ` Kirill Marinushkin
2018-02-19 20:36   ` Kirill Marinushkin [this message]
2018-02-19 20:36     ` [PATCH v2 2/2] ASoC: topology: Add missing clock gating parameter when parsing hw_configs Kirill Marinushkin
2018-02-20 12:09       ` Applied "ASoC: topology: Add missing clock gating parameter when parsing hw_configs" to the asoc tree Mark Brown
2018-02-20 13:45         ` Mark Brown
2018-02-20 16:56           ` Kirill Marinushkin
2018-02-20 17:03     ` [PATCH v2 1/2] ASoC: topology: Add defines for snd_soc_tplg_hw_config.clock_gated Kirill Marinushkin

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