ASoC: nau8825: Add ADCOUT IO drive strength control

Add a property to control the driving of ADCOUT.

Signed-off-by: David Lin <CTLIN0@nuvoton.com>
Link: https://lore.kernel.org/r/20220913120641.792502-1-CTLIN0@nuvoton.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c
index 54ef7b0..80a0864 100644 (file)
--- a/sound/soc/codecs/nau8825.c
+++ b/sound/soc/codecs/nau8825.c
@@ -1976,6 +1976,10 @@ static void nau8825_init_regs(struct nau8825 *nau8825)
        /* Disable short Frame Sync detection logic */
        regmap_update_bits(regmap, NAU8825_REG_LEFT_TIME_SLOT,
                NAU8825_DIS_FS_SHORT_DET, NAU8825_DIS_FS_SHORT_DET);
+       /* ADCDAT IO drive strength control */
+       regmap_update_bits(regmap, NAU8825_REG_CHARGE_PUMP,
+                          NAU8825_ADCOUT_DS_MASK,
+                          nau8825->adcout_ds << NAU8825_ADCOUT_DS_SFT);
 }
 
 static const struct regmap_config nau8825_regmap_config = {
@@ -2514,6 +2518,7 @@ static void nau8825_print_device_properties(struct nau8825 *nau8825)
                        nau8825->jack_eject_debounce);
        dev_dbg(dev, "crosstalk-enable:     %d\n",
                        nau8825->xtalk_enable);
+       dev_dbg(dev, "adcout-drive-strong:  %d\n", nau8825->adcout_ds);
 }
 
 static int nau8825_read_device_properties(struct device *dev,
@@ -2580,6 +2585,7 @@ static int nau8825_read_device_properties(struct device *dev,
                nau8825->jack_eject_debounce = 0;
        nau8825->xtalk_enable = device_property_read_bool(dev,
                "nuvoton,crosstalk-enable");
+       nau8825->adcout_ds = device_property_read_bool(dev, "nuvoton,adcout-drive-strong");
 
        nau8825->mclk = devm_clk_get(dev, "mclk");
        if (PTR_ERR(nau8825->mclk) == -EPROBE_DEFER) {

diff --git a/sound/soc/codecs/nau8825.h b/sound/soc/codecs/nau8825.h
index 887bbff..6d112b6 100644 (file)
--- a/sound/soc/codecs/nau8825.h
+++ b/sound/soc/codecs/nau8825.h
@@ -418,6 +418,8 @@
 #define NAU8825_POWERUP_HP_DRV_L       (1 << 0)
 
 /* CHARGE_PUMP (0x80) */
+#define NAU8825_ADCOUT_DS_SFT  12
+#define NAU8825_ADCOUT_DS_MASK (1 << NAU8825_ADCOUT_DS_SFT)
 #define NAU8825_JAMNODCLOW     (1 << 10)
 #define NAU8825_POWER_DOWN_DACR        (1 << 9)
 #define NAU8825_POWER_DOWN_DACL        (1 << 8)
@@ -477,6 +479,7 @@ struct nau8825 {
        int imp_rms[NAU8825_XTALK_IMM];
        int xtalk_enable;
        bool xtalk_baktab_initialized; /* True if initialized. */
+       bool adcout_ds;
 };
 
 int nau8825_enable_jack_detect(struct snd_soc_component *component,