linux-kernel - [PATCH 06/17] ASoC: twl6040: Use chip defaults in the initial reg

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Date:	Thu, 15 Sep 2011 15:39:28 +0300
From:	Peter Ujfalusi <peter.ujfalusi@...com>
To:	Samuel Ortiz <samuel.ortiz@...el.com>,
	Dmitry Torokhov <dtor@...l.ru>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Liam Girdwood <lrg@...com>
Cc:	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
	Misael Lopez Cruz <misael.lopez@...com>
Subject: [PATCH 06/17] ASoC: twl6040: Use chip defaults in the initial reg_cache

Reset the twl6040_reg array to hold the chip default values.
The only changed values were for the microphone input selection.
Select no input for the microphones in the twl6040_init_chip function.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
---
 sound/soc/codecs/twl6040.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c
index 8bbd46a..987d9c9 100644
--- a/sound/soc/codecs/twl6040.c
+++ b/sound/soc/codecs/twl6040.c
@@ -118,8 +118,8 @@ static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
 	0x4A, /* TWL6040_LPPLLDIV	0x09	*/
 	0x00, /* TWL6040_AMICBCTL	0x0A	*/
 	0x00, /* TWL6040_DMICBCTL	0x0B	*/
-	0x18, /* TWL6040_MICLCTL	0x0C	- No input selected on Left Mic */
-	0x18, /* TWL6040_MICRCTL	0x0D	- No input selected on Right Mic */
+	0x00, /* TWL6040_MICLCTL	0x0C	*/
+	0x00, /* TWL6040_MICRCTL	0x0D	*/
 	0x00, /* TWL6040_MICGAIN	0x0E	*/
 	0x1B, /* TWL6040_LINEGAIN	0x0F	*/
 	0x00, /* TWL6040_HSLCTL		0x10	*/
@@ -265,6 +265,10 @@ static void twl6040_init_chip(struct snd_soc_codec *codec)
 	val = twl6040_get_revid(twl6040);
 	twl6040_write_reg_cache(codec, TWL6040_REG_ASICREV, val);
 
+	/* Change chip defaults */
+	/* No imput selected for microphone amplifiers */
+	twl6040_write_reg_cache(codec, TWL6040_REG_MICLCTL, 0x18);
+	twl6040_write_reg_cache(codec, TWL6040_REG_MICRCTL, 0x18);
 }
 
 static void twl6040_restore_regs(struct snd_soc_codec *codec)
-- 
1.7.6.1

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