linux-kernel - [PATCH 5/6] ASoC: da7219: Add support for 1.6V micbias level

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Date:	Tue, 22 Dec 2015 18:27:55 +0000
From:	Adam Thomson <Adam.Thomson.Opensource@...semi.com>
To:	Mark Brown <broonie@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Takashi Iwai <tiwai@...e.com>,
	Jaroslav Kysela <perex@...ex.cz>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>
CC:	<alsa-devel@...a-project.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	Support Opensource <support.opensource@...semi.com>
Subject: [PATCH 5/6] ASoC: da7219: Add support for 1.6V micbias level

HW can provide 1.6V micbias level as well the existing levels
already provided in the driver. This patch adds support for 1.6V
to the DT binding.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@...semi.com>
---
 Documentation/devicetree/bindings/sound/da7219.txt | 2 +-
 include/sound/da7219.h                             | 3 ++-
 sound/soc/codecs/da7219.c                          | 3 +++
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/da7219.txt b/Documentation/devicetree/bindings/sound/da7219.txt
index 062a2a0..cf61681 100644
--- a/Documentation/devicetree/bindings/sound/da7219.txt
+++ b/Documentation/devicetree/bindings/sound/da7219.txt
@@ -29,7 +29,7 @@ Optional properties:
 - clock-names : Clock name string for 'clocks' attribute, should be "mclk".
 
 - dlg,micbias-lvl : Voltage (mV) for Mic Bias
-	[<1800>, <2000>, <2200>, <2400>, <2600>]
+	[<1600>, <1800>, <2000>, <2200>, <2400>, <2600>]
 - dlg,mic-amp-in-sel : Mic input source type
 	["diff", "se_p", "se_n"]
 
diff --git a/include/sound/da7219.h b/include/sound/da7219.h
index 307198b..02876ac 100644
--- a/include/sound/da7219.h
+++ b/include/sound/da7219.h
@@ -16,7 +16,8 @@
 
 /* Mic Bias */
 enum da7219_micbias_voltage {
-	DA7219_MICBIAS_1_8V = 1,
+	DA7219_MICBIAS_1_6V = 0,
+	DA7219_MICBIAS_1_8V,
 	DA7219_MICBIAS_2_0V,
 	DA7219_MICBIAS_2_2V,
 	DA7219_MICBIAS_2_4V,
diff --git a/sound/soc/codecs/da7219.c b/sound/soc/codecs/da7219.c
index 5daeec8..c019fef 100644
--- a/sound/soc/codecs/da7219.c
+++ b/sound/soc/codecs/da7219.c
@@ -1410,6 +1410,8 @@ static enum da7219_micbias_voltage
 	da7219_of_micbias_lvl(struct snd_soc_codec *codec, u32 val)
 {
 	switch (val) {
+	case 1600:
+		return DA7219_MICBIAS_1_6V;
 	case 1800:
 		return DA7219_MICBIAS_1_8V;
 	case 2000:
@@ -1571,6 +1573,7 @@ static void da7219_handle_pdata(struct snd_soc_codec *codec)
 
 		/* Mic Bias voltages */
 		switch (pdata->micbias_lvl) {
+		case DA7219_MICBIAS_1_6V:
 		case DA7219_MICBIAS_1_8V:
 		case DA7219_MICBIAS_2_0V:
 		case DA7219_MICBIAS_2_2V:
-- 
1.9.3

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