diff options
| -rw-r--r-- | sound/soc/codecs/twl4030.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index ab2f222..f882077 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -150,10 +150,22 @@ struct twl4030_priv { u8 earpiece_enabled; u8 predrivel_enabled, predriver_enabled; u8 carkitl_enabled, carkitr_enabled; + u8 ctl_cache[TWL4030_REG_PRECKR_CTL - TWL4030_REG_EAR_CTL + 1]; struct twl4030_codec_data *pdata; }; +static void tw4030_init_ctl_cache(struct twl4030_priv *twl4030) +{ + int i; + u8 byte; + + for (i = TWL4030_REG_EAR_CTL; i <= TWL4030_REG_PRECKR_CTL; i++) { + twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte, i); + twl4030->ctl_cache[i - TWL4030_REG_EAR_CTL] = byte; + } +} + /* * read twl4030 register cache */ @@ -348,6 +360,9 @@ static void twl4030_init_chip(struct snd_soc_codec *codec) } } + /* Initialize the local ctl register cache */ + tw4030_init_ctl_cache(twl4030); + /* Refresh APLL_CTL register from HW */ twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &byte, TWL4030_REG_APLL_CTL); |
