public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: "Andrew F. Davis" <afd@ti.com>
To: Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org>
Cc: <alsa-devel@alsa-project.org>, <linux-kernel@vger.kernel.org>,
	"Andrew F . Davis" <afd@ti.com>
Subject: [PATCH v3 04/10] ASoC: tlv320aic31xx: Add MICBIAS off setting
Date: Thu, 7 Dec 2017 09:38:54 -0600	[thread overview]
Message-ID: <20171207153900.9831-5-afd@ti.com> (raw)
In-Reply-To: <20171207153900.9831-1-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>
Acked-by: Rob Herring <robh@kernel.org>
---
 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 5b3c33bb99e5..411cc46a2c58 100644
--- a/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt
+++ b/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt
@@ -24,6 +24,7 @@ Optional properties:
 
 - reset-gpios - 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 266141d841e7..44950c1f2532 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -1320,6 +1320,7 @@ 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:[~2017-12-07 15:39 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-07 15:38 [PATCH v3 00/10] Add Headphone Detection to TLV320AIC31xx Driver Andrew F. Davis
2017-12-07 15:38 ` [PATCH v3 01/10] ASoC: tlv320aic31xx: Fix GPIO header includes Andrew F. Davis
2017-12-07 15:38 ` [PATCH v3 02/10] ASoC: tlv320aic31xx: Use fwnode APIs over raw OF calls Andrew F. Davis
2017-12-07 15:38 ` [PATCH v3 03/10] ASoC: tlv320aic31xx: Remove platform data Andrew F. Davis
2017-12-07 15:38 ` Andrew F. Davis [this message]
2017-12-07 15:38 ` [PATCH v3 05/10] ASoC: tlv320aic31xx: Remove regulator notification handling Andrew F. Davis
2017-12-07 15:38 ` [PATCH v3 06/10] ASoC: tlv320aic31xx: Reset registers during power up Andrew F. Davis
2017-12-07 15:38 ` [PATCH v3 07/10] ASoC: tlv320aic31xx: Add short circuit detection support Andrew F. Davis
2017-12-07 15:38 ` [PATCH v3 08/10] ASoC: tlv320aic31xx: Add overflow " Andrew F. Davis
2017-12-07 15:38 ` [PATCH v3 09/10] ASoC: tlv320aic31xx: Add headphone/headset detection Andrew F. Davis
2017-12-07 15:39 ` [PATCH v3 10/10] ASoC: tlv320aic31xx: Add button press detection Andrew F. Davis

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20171207153900.9831-5-afd@ti.com \
    --to=afd@ti.com \
    --cc=alsa-devel@alsa-project.org \
    --cc=broonie@kernel.org \
    --cc=lgirdwood@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox