diff options
Diffstat (limited to 'sound/soc/codecs/max98390.c')
| -rw-r--r-- | sound/soc/codecs/max98390.c | 80 |
1 files changed, 41 insertions, 39 deletions
diff --git a/sound/soc/codecs/max98390.c b/sound/soc/codecs/max98390.c index 5c08166a8dc6..7a5260ff8d6b 100644 --- a/sound/soc/codecs/max98390.c +++ b/sound/soc/codecs/max98390.c @@ -161,8 +161,6 @@ static struct reg_default max98390_reg_defaults[] = { {MAX98390_R23FF_GLOBAL_EN, 0x00}, }; -static int max98390_dsm_calibrate(struct snd_soc_component *component); - static int max98390_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct snd_soc_component *component = codec_dai->component; @@ -635,10 +633,48 @@ static int max98390_dsm_calib_get(struct snd_kcontrol *kcontrol, static int max98390_dsm_calib_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { - struct snd_soc_component *component = - snd_soc_kcontrol_component(kcontrol); + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct max98390_priv *max98390 = snd_soc_component_get_drvdata(component); + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + unsigned int rdc, rdc_cal_result, rdc_integer, rdc_factor, temp, val; + + snd_soc_dapm_mutex_lock(dapm); + + regmap_read(max98390->regmap, MAX98390_R23FF_GLOBAL_EN, &val); + if (!val) { + /* Enable the codec for the duration of calibration readout */ + regmap_update_bits(max98390->regmap, MAX98390_R203A_AMP_EN, + MAX98390_AMP_EN_MASK, 1); + regmap_update_bits(max98390->regmap, MAX98390_R23FF_GLOBAL_EN, + MAX98390_GLOBAL_EN_MASK, 1); + } + + regmap_read(max98390->regmap, THERMAL_RDC_RD_BACK_BYTE1, &rdc); + regmap_read(max98390->regmap, THERMAL_RDC_RD_BACK_BYTE0, &rdc_cal_result); + regmap_read(max98390->regmap, MAX98390_MEAS_ADC_CH2_READ, &temp); + + if (!val) { + /* Disable the codec if it was disabled */ + regmap_update_bits(max98390->regmap, MAX98390_R23FF_GLOBAL_EN, + MAX98390_GLOBAL_EN_MASK, 0); + regmap_update_bits(max98390->regmap, MAX98390_R203A_AMP_EN, + MAX98390_AMP_EN_MASK, 0); + } + + snd_soc_dapm_mutex_unlock(dapm); - max98390_dsm_calibrate(component); + rdc_cal_result |= (rdc << 8) & 0x0000FFFF; + if (rdc_cal_result) + max98390->ref_rdc_value = 268435456U / rdc_cal_result; + + max98390->ambient_temp_value = temp * 52 - 1188; + + rdc_integer = rdc_cal_result * 937 / 65536; + rdc_factor = ((rdc_cal_result * 937 * 100) / 65536) - (rdc_integer * 100); + + dev_info(component->dev, + "rdc resistance about %d.%02d ohm, reg=0x%X temp reg=0x%X\n", + rdc_integer, rdc_factor, rdc_cal_result, temp); return 0; } @@ -819,40 +855,6 @@ err: return ret; } -static int max98390_dsm_calibrate(struct snd_soc_component *component) -{ - unsigned int rdc, rdc_cal_result, temp; - unsigned int rdc_integer, rdc_factor; - struct max98390_priv *max98390 = - snd_soc_component_get_drvdata(component); - - regmap_write(max98390->regmap, MAX98390_R203A_AMP_EN, 0x81); - regmap_write(max98390->regmap, MAX98390_R23FF_GLOBAL_EN, 0x01); - - regmap_read(max98390->regmap, - THERMAL_RDC_RD_BACK_BYTE1, &rdc); - regmap_read(max98390->regmap, - THERMAL_RDC_RD_BACK_BYTE0, &rdc_cal_result); - rdc_cal_result |= (rdc << 8) & 0x0000FFFF; - if (rdc_cal_result) - max98390->ref_rdc_value = 268435456U / rdc_cal_result; - - regmap_read(max98390->regmap, MAX98390_MEAS_ADC_CH2_READ, &temp); - max98390->ambient_temp_value = temp * 52 - 1188; - - rdc_integer = rdc_cal_result * 937 / 65536; - rdc_factor = ((rdc_cal_result * 937 * 100) / 65536) - - (rdc_integer * 100); - - dev_info(component->dev, "rdc resistance about %d.%02d ohm, reg=0x%X temp reg=0x%X\n", - rdc_integer, rdc_factor, rdc_cal_result, temp); - - regmap_write(max98390->regmap, MAX98390_R23FF_GLOBAL_EN, 0x00); - regmap_write(max98390->regmap, MAX98390_R203A_AMP_EN, 0x80); - - return 0; -} - static void max98390_init_regs(struct snd_soc_component *component) { struct max98390_priv *max98390 = |