[PATCH 6.1.y 6/7] ASOC: codecs: ES8326: Add calibration support for version_b

From: Zhu Ning zhuning0077@gmail.com

Commit 0663286e58e6f611f3578b5e63e1faa576d139fd upstream.

Version_b requires a new way of calibrating headset offset. A new calibration function is added.

Signed-off-by: Zhu Ning zhuning0077@gmail.com Link: https://lore.kernel.org/r/20230717033223.42506-4-zhuning0077@gmail.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Vasiliy Kovalev kovalev@altlinux.org --- sound/soc/codecs/es8326.c | 83 ++++++++++++++++++++++++++++++++------- 1 file changed, 68 insertions(+), 15 deletions(-)

diff --git a/sound/soc/codecs/es8326.c b/sound/soc/codecs/es8326.c index 1525fac1f9b8b1..50b13296e246e1 100644 --- a/sound/soc/codecs/es8326.c +++ b/sound/soc/codecs/es8326.c @@ -388,6 +388,7 @@ static int es8326_mute(struct snd_soc_dai *dai, int mute, int direction) { struct snd_soc_component *component = dai->component; struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component); + unsigned int offset_l, offset_r;

if (mute) { regmap_write(es8326->regmap, ES8326_HP_CAL, ES8326_HP_OFF); @@ -398,10 +399,16 @@ static int es8326_mute(struct snd_soc_dai *dai, int mute, int direction) if (!es8326->calibrated) { regmap_write(es8326->regmap, ES8326_HP_CAL, ES8326_HP_FORCE_CAL); msleep(30); + regmap_write(es8326->regmap, ES8326_HP_CAL, ES8326_HP_OFF); + regmap_read(es8326->regmap, ES8326_HPL_OFFSET_INI, &offset_l); + regmap_read(es8326->regmap, ES8326_HPR_OFFSET_INI, &offset_r); + regmap_write(es8326->regmap, ES8326_HP_OFFSET_CAL, 0x8c); + regmap_write(es8326->regmap, ES8326_HPL_OFFSET_INI, offset_l); + regmap_write(es8326->regmap, ES8326_HPR_OFFSET_INI, offset_r); es8326->calibrated = true; } regmap_write(es8326->regmap, ES8326_HP_DRIVER, 0xa0); - regmap_write(es8326->regmap, ES8326_HP_VOL, 0x00); + regmap_write(es8326->regmap, ES8326_HP_VOL, 0x80); regmap_write(es8326->regmap, ES8326_HP_CAL, ES8326_HP_ON); regmap_update_bits(es8326->regmap, ES8326_DAC_MUTE, ES8326_MUTE_MASK, ~(ES8326_MUTE)); @@ -420,15 +427,17 @@ static int es8326_set_bias_level(struct snd_soc_component *codec, ret = clk_prepare_enable(es8326->mclk); if (ret) return ret; - regmap_write(es8326->regmap, ES8326_RESET, ES8326_PWRUP_SEQ_EN); - regmap_write(es8326->regmap, ES8326_INTOUT_IO, 0x45); + + regmap_write(es8326->regmap, ES8326_RESET, 0x9f); + msleep(20); + regmap_update_bits(es8326->regmap, ES8326_DAC_DSM, 0x01, 0x00); + regmap_write(es8326->regmap, ES8326_INTOUT_IO, es8326->interrupt_clk); regmap_write(es8326->regmap, ES8326_SDINOUT1_IO, (ES8326_IO_DMIC_CLK << ES8326_SDINOUT1_SHIFT)); - regmap_write(es8326->regmap, ES8326_SDINOUT23_IO, ES8326_IO_INPUT); - regmap_write(es8326->regmap, ES8326_CLK_RESAMPLE, 0x05); - regmap_write(es8326->regmap, ES8326_VMIDSEL, 0x02); + regmap_write(es8326->regmap, ES8326_VMIDSEL, 0x0E); regmap_write(es8326->regmap, ES8326_PGA_PDN, 0x40); - regmap_write(es8326->regmap, ES8326_DAC2HPMIX, 0xAA); + regmap_write(es8326->regmap, ES8326_ANA_PDN, 0x00); + regmap_update_bits(es8326->regmap, ES8326_CLK_CTL, 0x20, 0x20); regmap_write(es8326->regmap, ES8326_RESET, ES8326_CSM_ON); break; case SND_SOC_BIAS_PREPARE: @@ -437,15 +446,10 @@ static int es8326_set_bias_level(struct snd_soc_component *codec, break; case SND_SOC_BIAS_OFF: clk_disable_unprepare(es8326->mclk); - regmap_write(es8326->regmap, ES8326_DAC2HPMIX, 0x11); - regmap_write(es8326->regmap, ES8326_RESET, ES8326_CSM_OFF); - regmap_write(es8326->regmap, ES8326_PGA_PDN, 0xF8); + regmap_write(es8326->regmap, ES8326_ANA_PDN, 0x3b); regmap_write(es8326->regmap, ES8326_VMIDSEL, 0x00); - regmap_write(es8326->regmap, ES8326_INT_SOURCE, 0x08); + regmap_update_bits(es8326->regmap, ES8326_CLK_CTL, 0x20, 0x00); regmap_write(es8326->regmap, ES8326_SDINOUT1_IO, ES8326_IO_INPUT); - regmap_write(es8326->regmap, ES8326_SDINOUT23_IO, ES8326_IO_INPUT); - regmap_write(es8326->regmap, ES8326_RESET, - ES8326_CODEC_RESET | ES8326_PWRUP_SEQ_EN); break; }

@@ -635,6 +639,54 @@ static irqreturn_t es8326_irq(int irq, void *dev_id) return IRQ_HANDLED; }

+static int es8326_calibrate(struct snd_soc_component *component) +{ + struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component); + unsigned int reg; + unsigned int offset_l, offset_r; + + regmap_read(es8326->regmap, ES8326_CHIP_VERSION, &reg); + es8326->version = reg; + + if ((es8326->version == ES8326_VERSION_B) && (es8326->calibrated == false)) { + dev_dbg(component->dev, "ES8326_VERSION_B, calibrating\n"); + regmap_write(es8326->regmap, ES8326_CLK_INV, 0xc0); + regmap_write(es8326->regmap, ES8326_CLK_DIV1, 0x01); + regmap_write(es8326->regmap, ES8326_CLK_DLL, 0x30); + regmap_write(es8326->regmap, ES8326_CLK_MUX, 0xed); + regmap_write(es8326->regmap, ES8326_CLK_TRI, 0xc1); + regmap_write(es8326->regmap, ES8326_DAC_MUTE, 0x03); + regmap_write(es8326->regmap, ES8326_ANA_VSEL, 0x7f); + regmap_write(es8326->regmap, ES8326_VMIDLOW, 0x33); + regmap_write(es8326->regmap, ES8326_DAC2HPMIX, 0x88); + regmap_write(es8326->regmap, ES8326_HP_VOL, 0x80); + regmap_write(es8326->regmap, ES8326_HP_OFFSET_CAL, 0x8c); + regmap_write(es8326->regmap, ES8326_RESET, 0xc0); + usleep_range(15000, 20000); + + regmap_write(es8326->regmap, ES8326_HP_OFFSET_CAL, ES8326_HP_OFF); + regmap_read(es8326->regmap, ES8326_CSM_MUTE_STA, &reg); + if ((reg & 0xf0) != 0x40) + msleep(50); + + regmap_write(es8326->regmap, ES8326_HP_CAL, 0xd4); + msleep(200); + regmap_write(es8326->regmap, ES8326_HP_CAL, 0x4d); + msleep(200); + regmap_write(es8326->regmap, ES8326_HP_CAL, ES8326_HP_OFF); + regmap_read(es8326->regmap, ES8326_HPL_OFFSET_INI, &offset_l); + regmap_read(es8326->regmap, ES8326_HPR_OFFSET_INI, &offset_r); + regmap_write(es8326->regmap, ES8326_HP_OFFSET_CAL, 0x8c); + regmap_write(es8326->regmap, ES8326_HPL_OFFSET_INI, offset_l); + regmap_write(es8326->regmap, ES8326_HPR_OFFSET_INI, offset_r); + regmap_write(es8326->regmap, ES8326_CLK_INV, 0x00); + + es8326->calibrated = true; + } + + return 0; +} + static int es8326_resume(struct snd_soc_component *component) { struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component); @@ -673,7 +725,8 @@ static int es8326_resume(struct snd_soc_component *component) regmap_write(es8326->regmap, ES8326_CLK_VMIDS1, 0xc4); regmap_write(es8326->regmap, ES8326_CLK_VMIDS2, 0x81); regmap_write(es8326->regmap, ES8326_CLK_CAL_TIME, 0x00); - + /* calibrate for B version */ + es8326_calibrate(component); /* turn off headphone out */ regmap_write(es8326->regmap, ES8326_HP_CAL, 0x00); /* set ADC and DAC in low power mode */