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Diffstat (limited to 'sound/soc/codecs/nau8821.c')
-rw-r--r--sound/soc/codecs/nau8821.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/soc/codecs/nau8821.c b/sound/soc/codecs/nau8821.c
index 6e1b6b26298a..012e347e6391 100644
--- a/sound/soc/codecs/nau8821.c
+++ b/sound/soc/codecs/nau8821.c
@@ -1738,6 +1738,10 @@ static int nau8821_read_device_properties(struct device *dev,
&nau8821->dmic_clk_threshold);
if (ret)
nau8821->dmic_clk_threshold = 3072000;
+ ret = device_property_read_u32(dev, "nuvoton,dmic-slew-rate",
+ &nau8821->dmic_slew_rate);
+ if (ret)
+ nau8821->dmic_slew_rate = 0;
return 0;
}
@@ -1797,6 +1801,9 @@ static void nau8821_init_regs(struct nau8821 *nau8821)
NAU8821_ADC_SYNC_DOWN_MASK, NAU8821_ADC_SYNC_DOWN_64);
regmap_update_bits(regmap, NAU8821_R2C_DAC_CTRL1,
NAU8821_DAC_OVERSAMPLE_MASK, NAU8821_DAC_OVERSAMPLE_64);
+ regmap_update_bits(regmap, NAU8821_R13_DMIC_CTRL,
+ NAU8821_DMIC_SLEW_MASK, nau8821->dmic_slew_rate <<
+ NAU8821_DMIC_SLEW_SFT);
if (nau8821->left_input_single_end) {
regmap_update_bits(regmap, NAU8821_R6B_PGA_MUTE,
NAU8821_MUTE_MICNL_EN, NAU8821_MUTE_MICNL_EN);