[alsa-devel] [PATCH] ASoC: TWL4030: Modify codec default settings

Peter Ujfalusi peter.ujfalusi at nokia.com
Thu Jan 28 14:57:04 CET 2010


Change the legacy default register configuration, which left some
internal components on.
Now we have either DAPM, or other ways to control these bits,
so there is no need to enable them by default.

The affected parts:
Disable ADCL and ADCR
Disable ARXL2 and ARXR2 analog PGA (playback)
Disable APLL by default

Signed-off-by: Peter Ujfalusi <peter.ujfalusi at nokia.com>
---
 sound/soc/codecs/twl4030.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index 74f0d65..e0106a5 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -64,12 +64,12 @@ static const u8 twl4030_reg[TWL4030_CACHEREGNUM] = {
 	0x00, /* REG_VRXPGA		(0x14)	*/
 	0x00, /* REG_VSTPGA		(0x15)	*/
 	0x00, /* REG_VRX2ARXPGA		(0x16)	*/
-	0x0c, /* REG_AVDAC_CTL		(0x17)	*/
+	0x00, /* REG_AVDAC_CTL		(0x17)	*/
 	0x00, /* REG_ARX2VTXPGA		(0x18)	*/
 	0x00, /* REG_ARXL1_APGA_CTL	(0x19)	*/
 	0x00, /* REG_ARXR1_APGA_CTL	(0x1A)	*/
-	0x4b, /* REG_ARXL2_APGA_CTL	(0x1B)	*/
-	0x4b, /* REG_ARXR2_APGA_CTL	(0x1C)	*/
+	0x4a, /* REG_ARXL2_APGA_CTL	(0x1B)	*/
+	0x4a, /* REG_ARXR2_APGA_CTL	(0x1C)	*/
 	0x00, /* REG_ATX2ARXPGA		(0x1D)	*/
 	0x00, /* REG_BT_IF		(0x1E)	*/
 	0x00, /* REG_BTPGA		(0x1F)	*/
@@ -99,7 +99,7 @@ static const u8 twl4030_reg[TWL4030_CACHEREGNUM] = {
 	0x00, /* REG_I2S_RX_SCRAMBLE_H	(0x37)	*/
 	0x00, /* REG_I2S_RX_SCRAMBLE_M	(0x38)	*/
 	0x00, /* REG_I2S_RX_SCRAMBLE_L	(0x39)	*/
-	0x16, /* REG_APLL_CTL		(0x3A)	*/
+	0x06, /* REG_APLL_CTL		(0x3A)	*/
 	0x00, /* REG_DTMF_CTL		(0x3B)	*/
 	0x00, /* REG_DTMF_PGA_CTL2	(0x3C)	*/
 	0x00, /* REG_DTMF_PGA_CTL1	(0x3D)	*/
-- 
1.6.6.1



More information about the Alsa-devel mailing list