ASoC: codecs: ES8326: Fix power-up sequence

Old power-up sequence causes large pop noise during start-up.
Using a new sequence instead.

Also, the registers are now reset to default value in suspend
function.

Signed-off-by: Zhu Ning <zhuning0077@gmail.com>
Link: https://lore.kernel.org/r/20230717033223.42506-3-zhuning0077@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/es8326.c b/sound/soc/codecs/es8326.c
index 9f4408d..ffb61a3 100644 (file)
--- a/sound/soc/codecs/es8326.c
+++ b/sound/soc/codecs/es8326.c
@@ -638,40 +638,77 @@ out:
 static int es8326_resume(struct snd_soc_component *component)
 {
        struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
-       unsigned int reg;
 
        regcache_cache_only(es8326->regmap, false);
        regcache_sync(es8326->regmap);
 
+       /* reset internal clock state */
+       regmap_write(es8326->regmap, ES8326_RESET, 0x1f);
+       regmap_write(es8326->regmap, ES8326_VMIDSEL, 0x0E);
+       usleep_range(10000, 15000);
+       regmap_write(es8326->regmap, ES8326_HPJACK_TIMER, 0x88);
+       /* set headphone default type and detect pin */
+       regmap_write(es8326->regmap, ES8326_HPDET_TYPE, 0x81);
+       regmap_write(es8326->regmap, ES8326_CLK_RESAMPLE, 0x05);
+
+       /* set internal oscillator as clock source of headpone cp */
+       regmap_write(es8326->regmap, ES8326_CLK_DIV_CPC, 0x84);
        regmap_write(es8326->regmap, ES8326_CLK_CTL, ES8326_CLK_ON);
-       /* Two channel ADC */
-       regmap_write(es8326->regmap, ES8326_PULLUP_CTL, 0x02);
+       /* clock manager reset release */
+       regmap_write(es8326->regmap, ES8326_RESET, 0x17);
+       /* set headphone detection as half scan mode */
+       regmap_write(es8326->regmap, ES8326_HP_MISC, 0x08);
+       regmap_write(es8326->regmap, ES8326_PULLUP_CTL, 0x00);
+
+       /* enable headphone driver */
+       regmap_write(es8326->regmap, ES8326_HP_DRIVER, 0xa7);
+       usleep_range(2000, 5000);
+       regmap_write(es8326->regmap, ES8326_HP_DRIVER_REF, 0xab);
+       usleep_range(2000, 5000);
+       regmap_write(es8326->regmap, ES8326_HP_DRIVER_REF, 0xbb);
+       usleep_range(2000, 5000);
+       regmap_write(es8326->regmap, ES8326_HP_DRIVER, 0xa1);
+
        regmap_write(es8326->regmap, ES8326_CLK_INV, 0x00);
-       regmap_write(es8326->regmap, ES8326_CLK_DIV_CPC, 0x1F);
-       regmap_write(es8326->regmap, ES8326_CLK_VMIDS1, 0xC8);
-       regmap_write(es8326->regmap, ES8326_CLK_VMIDS2, 0x88);
-       regmap_write(es8326->regmap, ES8326_CLK_CAL_TIME, 0x20);
+       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);
+
+       /* turn off headphone out */
+       regmap_write(es8326->regmap, ES8326_HP_CAL, 0x00);
+       /* set ADC and DAC in low power mode */
+       regmap_write(es8326->regmap, ES8326_ANA_LP, 0xf0);
+
+       /* force micbias on */
+       regmap_write(es8326->regmap, ES8326_ANA_MICBIAS, 0x4f);
        regmap_write(es8326->regmap, ES8326_SYS_BIAS, 0x08);
-       regmap_write(es8326->regmap, ES8326_DAC2HPMIX, 0x22);
-       regmap_write(es8326->regmap, ES8326_ADC1_SRC, es8326->mic1_src);
-       regmap_write(es8326->regmap, ES8326_ADC2_SRC, es8326->mic2_src);
-       regmap_write(es8326->regmap, ES8326_HPJACK_TIMER, 0x88);
-       regmap_write(es8326->regmap, ES8326_HPDET_TYPE,
-                    ES8326_HP_DET_SRC_PIN9 | es8326->jack_pol);
-       regmap_write(es8326->regmap, ES8326_INT_SOURCE, es8326->interrupt_src);
-       regmap_write(es8326->regmap, ES8326_INTOUT_IO, es8326->interrupt_clk);
+       regmap_write(es8326->regmap, ES8326_ANA_VSEL, 0x7F);
+       /* select vdda as micbias source */
+       regmap_write(es8326->regmap, ES8326_VMIDLOW, 0x23);
+       /* set dac dsmclip = 1 */
+       regmap_write(es8326->regmap, ES8326_DAC_DSM, 0x08);
+       regmap_write(es8326->regmap, ES8326_DAC_VPPSCALE, 0x15);
+
+       regmap_write(es8326->regmap, ES8326_INT_SOURCE,
+                   (ES8326_INT_SRC_PIN9 | ES8326_INT_SRC_BUTTON));
+       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_ANA_PDN, 0x3b);
        regmap_write(es8326->regmap, ES8326_RESET, ES8326_CSM_ON);
-       snd_soc_component_update_bits(component, ES8326_PGAGAIN,
-                                     ES8326_MIC_SEL_MASK, ES8326_MIC1_SEL);
-
-       regmap_read(es8326->regmap, ES8326_CHIP_VERSION, &reg);
-       if ((reg & ES8326_VERSION_B) == 1) {
-               regmap_write(es8326->regmap, ES8326_ANA_MICBIAS, 0xDD);
-               regmap_write(es8326->regmap, ES8326_ANA_VSEL, 0x7F);
-               regmap_write(es8326->regmap, ES8326_VMIDLOW, 0x0F);
-               /* enable button detect */
-               regmap_write(es8326->regmap, ES8326_HP_DRIVER, 0xA0);
-       }
+       regmap_update_bits(es8326->regmap, ES8326_PGAGAIN, ES8326_MIC_SEL_MASK,
+                          ES8326_MIC1_SEL);
+
+       regmap_update_bits(es8326->regmap, ES8326_DAC_MUTE, ES8326_MUTE_MASK,
+                          ES8326_MUTE);
+
+       regmap_write(es8326->regmap, ES8326_HPDET_TYPE, 0x80 |
+                       ((es8326->version == ES8326_VERSION_B) ?
+                       (ES8326_HP_DET_SRC_PIN9 | es8326->jack_pol) :
+                       (ES8326_HP_DET_SRC_PIN9 | es8326->jack_pol | 0x04)));
 
        es8326_irq(es8326->irq, es8326);
        return 0;
@@ -688,6 +725,10 @@ static int es8326_suspend(struct snd_soc_component *component)
        regcache_cache_only(es8326->regmap, true);
        regcache_mark_dirty(es8326->regmap);
 
+       /* reset register value to default */
+       regmap_write(es8326->regmap, ES8326_CSM_I2C_STA, 0x01);
+       usleep_range(1000, 3000);
+       regmap_write(es8326->regmap, ES8326_CSM_I2C_STA, 0x00);
        return 0;
 }
 
@@ -717,7 +758,7 @@ static int es8326_probe(struct snd_soc_component *component)
        ret = device_property_read_u8(component->dev, "everest,jack-pol", &es8326->jack_pol);
        if (ret != 0) {
                dev_dbg(component->dev, "jack-pol return %d", ret);
-               es8326->jack_pol = ES8326_HP_DET_BUTTON_POL | ES8326_HP_TYPE_OMTP;
+               es8326->jack_pol = ES8326_HP_TYPE_AUTO;
        }
        dev_dbg(component->dev, "jack-pol %x", es8326->jack_pol);
 

diff --git a/sound/soc/codecs/es8326.h b/sound/soc/codecs/es8326.h
index cd04d11..90a0835 100644 (file)
--- a/sound/soc/codecs/es8326.h
+++ b/sound/soc/codecs/es8326.h
@@ -160,6 +160,13 @@
 #define ES8326_HP_TYPE_AUTO    (1 << 0)
 #define ES8326_HP_TYPE_AUTO_INV        (0 << 0)
 
+/* ES8326_INT_SOURCE */
+#define ES8326_INT_SRC_DAC_MOZ (1 << 0)
+#define ES8326_INT_SRC_ADC_MOZ (1 << 1)
+#define ES8326_INT_SRC_BUTTON (1 << 2)
+#define ES8326_INT_SRC_PIN9 (1 << 3)
+#define ES8326_INT_SRC_PIN27 (1 << 4)
+
 /* ES8326_SDINOUT1_IO */
 #define ES8326_IO_INPUT        (0 << 0)
 #define ES8326_IO_SDIN_SLOT0 (1 << 0)
@@ -183,6 +190,7 @@
 #define ES8326_HPBUTTON_FLAG (1 << 0)
 
 /* ES8326_CHIP_VERSION 0xFF */
-#define ES8326_VERSION_B (1 << 0)
+#define ES8326_VERSION (1 << 0)
+#define ES8326_VERSION_B (3 << 0)
 
 #endif