[alsa-devel] [PATCH 1/4] ASoC: twl6040: Read the TRIM values from the chip

Peter Ujfalusi peter.ujfalusi at ti.com
Thu Sep 15 14:45:15 CEST 2011


Update the reg_cache with values from chip regarding to TRIM.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi at ti.com>
---
 sound/soc/codecs/twl6040.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c
index 063defc..638954c 100644
--- a/sound/soc/codecs/twl6040.c
+++ b/sound/soc/codecs/twl6040.c
@@ -279,9 +279,16 @@ static void twl6040_init_chip(struct snd_soc_codec *codec)
 	struct twl6040 *twl6040 = codec->control_data;
 	u8 val;
 
+	/* Update reg_cache: ASICREV, and TRIM values */
 	val = twl6040_get_revid(twl6040);
 	twl6040_write_reg_cache(codec, TWL6040_REG_ASICREV, val);
 
+	twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM1);
+	twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM2);
+	twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM3);
+	twl6040_read_reg_volatile(codec, TWL6040_REG_HSOTRIM);
+	twl6040_read_reg_volatile(codec, TWL6040_REG_HFOTRIM);
+
 	/* Change chip defaults */
 	/* No imput selected for microphone amplifiers */
 	twl6040_write_reg_cache(codec, TWL6040_REG_MICLCTL, 0x18);
-- 
1.7.6.1



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