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From: "Andrew F. Davis" <afd@ti.com>
To: "Liam Girdwood" <lgirdwood@gmail.com>,
	"Mark Brown" <broonie@kernel.org>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Mark Rutland" <mark.rutland@arm.com>,
	"Benoît Cousson" <bcousson@baylibre.com>,
	"Tony Lindgren" <tony@atomide.com>
Cc: <alsa-devel@alsa-project.org>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, "Andrew F . Davis" <afd@ti.com>
Subject: [PATCH 07/17] ASoC: tlv320aic31xx: Add MICBIAS off setting
Date: Wed, 8 Nov 2017 18:27:31 -0600	[thread overview]
Message-ID: <20171109002741.10897-8-afd@ti.com> (raw)
In-Reply-To: <20171109002741.10897-1-afd@ti.com>

Leaving microphone bias off is a valid setting and even used in the DT
binding document example. Add this setting here and document the same.

Signed-off-by: Andrew F. Davis <afd@ti.com>
---
 Documentation/devicetree/bindings/sound/tlv320aic31xx.txt | 1 +
 include/dt-bindings/sound/tlv320aic31xx-micbias.h         | 1 +
 sound/soc/codecs/tlv320aic31xx.c                          | 1 +
 3 files changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt b/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt
index 4c4e77f97d87..a56b40a1726c 100644
--- a/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt
+++ b/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt
@@ -24,6 +24,7 @@ Optional properties:
 
 - reset-gpio - GPIO specification for the active low RESET input.
 - ai31xx-micbias-vg - MicBias Voltage setting
+        0 or MICBIAS_OFF - MICBIAS output is powered off
         1 or MICBIAS_2_0V - MICBIAS output is powered to 2.0V
         2 or MICBIAS_2_5V - MICBIAS output is powered to 2.5V
         3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD
diff --git a/include/dt-bindings/sound/tlv320aic31xx-micbias.h b/include/dt-bindings/sound/tlv320aic31xx-micbias.h
index c6895a18a455..069484070fcf 100644
--- a/include/dt-bindings/sound/tlv320aic31xx-micbias.h
+++ b/include/dt-bindings/sound/tlv320aic31xx-micbias.h
@@ -2,6 +2,7 @@
 #ifndef __DT_TLV320AIC31XX_MICBIAS_H
 #define __DT_TLV320AIC31XX_MICBIAS_H
 
+#define MICBIAS_OFF		0
 #define MICBIAS_2_0V		1
 #define MICBIAS_2_5V		2
 #define MICBIAS_AVDDV		3
diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index 44502a847af4..e8eb3de7af7b 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -1313,6 +1313,7 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
 	fwnode_property_read_u32(aic31xx->dev->fwnode, "ai31xx-micbias-vg",
 				 &micbias_value);
 	switch (micbias_value) {
+	case MICBIAS_OFF:
 	case MICBIAS_2_0V:
 	case MICBIAS_2_5V:
 	case MICBIAS_AVDDV:
-- 
2.15.0

  parent reply	other threads:[~2017-11-09  0:28 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-09  0:27 [PATCH 00/17] Add Headphone Detection to TLV320AIC31xx Driver Andrew F. Davis
2017-11-09  0:27 ` [PATCH 01/17] ASoC: tlv320aic31xx: General source formatting cleanup Andrew F. Davis
2017-11-09 12:41   ` Mark Brown
2017-11-09 14:13     ` Andrew F. Davis
2017-11-09 16:15       ` Mark Brown
2017-11-09  0:27 ` [PATCH 02/17] ASoC: tlv320aic31xx: Reformat header file using GENMASK and BIT macros Andrew F. Davis
2017-11-09  0:27 ` [PATCH 03/17] ASoC: tlv320aic31xx: Fix GPIO1 register definition Andrew F. Davis
2017-11-09 12:45   ` Mark Brown
2017-11-09 14:32     ` Andrew F. Davis
2017-11-09  0:27 ` [PATCH 04/17] ASoC: tlv320aic31xx: Merge init function into probe Andrew F. Davis
2017-11-09  0:27 ` [PATCH 05/17] ASoC: tlv320aic31xx: Switch GPIO handling to use gpiod_* API Andrew F. Davis
2017-11-09  0:27 ` [PATCH 06/17] ASoC: tlv320aic31xx: Remove platform data Andrew F. Davis
2017-11-09  0:27 ` Andrew F. Davis [this message]
2017-11-15 15:30   ` [PATCH 07/17] ASoC: tlv320aic31xx: Add MICBIAS off setting Rob Herring
2017-11-09  0:27 ` [PATCH 08/17] ASoC: tlv320aic31xx: Check clock and divider before division Andrew F. Davis
2017-11-09  0:27 ` [PATCH 09/17] ASoC: tlv320aic31xx: Add CODEC clock slave support Andrew F. Davis
2017-11-09  0:27 ` [PATCH 10/17] ASoC: tlv320aic31xx: Fix inverted BCLK handling Andrew F. Davis
2017-11-09  0:27 ` [PATCH 11/17] ASoC: tlv320aic31xx: Reset registers during probe Andrew F. Davis
2017-11-09  0:27 ` [PATCH 12/17] ASoC: tlv320aic31xx: Add short circuit detection support Andrew F. Davis
2017-11-09  0:27 ` [PATCH 13/17] ASoC: tlv320aic31xx: Add overflow " Andrew F. Davis
2017-11-09  0:27 ` [PATCH 14/17] ASoC: tlv320aic31xx: Add headphone/headset detection Andrew F. Davis
2017-11-09  0:27 ` [PATCH 15/17] ASoC: tlv320aic31xx: Add button press detection Andrew F. Davis
2017-11-09  0:27 ` [PATCH 16/17] NOT FOR MERGING: Add TLV320DAC3101 to BBB for testing Andrew F. Davis
2017-11-09  0:27 ` [PATCH 17/17] NOT FOR MERGING: Add demo jack detection policy " Andrew F. Davis

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