diff options
Diffstat (limited to 'sound/soc/codecs/sgtl5000.c')
| -rw-r--r-- | sound/soc/codecs/sgtl5000.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c index 1589325855bc..5a2702edeb77 100644 --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -99,6 +99,13 @@ enum sgtl5000_micbias_resistor { SGTL5000_MICBIAS_8K = 8, }; +enum { + I2S_LRCLK_STRENGTH_DISABLE, + I2S_LRCLK_STRENGTH_LOW, + I2S_LRCLK_STRENGTH_MEDIUM, + I2S_LRCLK_STRENGTH_HIGH, +}; + /* sgtl5000 private structure in codec */ struct sgtl5000_priv { int sysclk; /* sysclk rate */ @@ -111,6 +118,7 @@ struct sgtl5000_priv { int revision; u8 micbias_resistor; u8 micbias_voltage; + u8 lrclk_strength; }; /* @@ -1089,6 +1097,7 @@ static int sgtl5000_enable_regulators(struct i2c_client *client) static int sgtl5000_probe(struct snd_soc_codec *codec) { int ret; + u16 reg; struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); /* power up sgtl5000 */ @@ -1118,7 +1127,8 @@ static int sgtl5000_probe(struct snd_soc_codec *codec) SGTL5000_DAC_MUTE_RIGHT | SGTL5000_DAC_MUTE_LEFT); - snd_soc_write(codec, SGTL5000_CHIP_PAD_STRENGTH, 0x015f); + reg = ((sgtl5000->lrclk_strength) << SGTL5000_PAD_I2S_LRCLK_SHIFT | 0x5f); + snd_soc_write(codec, SGTL5000_CHIP_PAD_STRENGTH, reg); snd_soc_write(codec, SGTL5000_CHIP_ANA_CTRL, SGTL5000_HP_ZCD_EN | @@ -1347,6 +1357,13 @@ static int sgtl5000_i2c_probe(struct i2c_client *client, } } + sgtl5000->lrclk_strength = I2S_LRCLK_STRENGTH_LOW; + if (!of_property_read_u32(np, "lrclk-strength", &value)) { + if (value > I2S_LRCLK_STRENGTH_HIGH) + value = I2S_LRCLK_STRENGTH_LOW; + sgtl5000->lrclk_strength = value; + } + /* Ensure sgtl5000 will start with sane register values */ sgtl5000_fill_defaults(client); |