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- From 1a1095927d224403af8ad57c354cc64521bf3081 Mon Sep 17 00:00:00 2001
- From: Paul Cercueil <paul@crapouillou.net>
- Date: Sat, 16 Jun 2012 19:36:31 +0200
- Subject: [PATCH 4/7] ASoC: JZ4740: delay activation of the DAC to work around
- a sound bug.
- A proper fix of that bug would require a big rewrite of the driver,
- which (I hope) will be done eventually.
- ---
- sound/soc/codecs/jz4740.c | 9 ++++++---
- 1 file changed, 6 insertions(+), 3 deletions(-)
- --- a/sound/soc/codecs/jz4740.c
- +++ b/sound/soc/codecs/jz4740.c
- @@ -249,12 +249,15 @@ static int jz4740_codec_set_bias_level(s
- case SND_SOC_BIAS_ON:
- break;
- case SND_SOC_BIAS_PREPARE:
- - mask = JZ4740_CODEC_1_VREF_DISABLE |
- - JZ4740_CODEC_1_VREF_AMP_DISABLE |
- - JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
- + mask = JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
- value = 0;
-
- regmap_update_bits(regmap, JZ4740_REG_CODEC_1, mask, value);
- +
- + msleep(500);
- + mask = JZ4740_CODEC_1_VREF_DISABLE |
- + JZ4740_CODEC_1_VREF_AMP_DISABLE;
- + regmap_update_bits(regmap, JZ4740_REG_CODEC_1, mask, 0);
- break;
- case SND_SOC_BIAS_STANDBY:
- /* The only way to clear the suspend flag is to reset the codec */
|
