diff options
| author | Seven Lee <wtli@nuvoton.com> | 2023-11-07 11:52:30 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-11-13 00:44:24 +0000 |
| commit | 91d1a18b6381abd7a0137449fe345924072e4a32 (patch) | |
| tree | ea4f3928d117d152f9f4a3eb7f46383e4bab6cde /sound/soc/codecs | |
| parent | 1fb1a7c4a6328aff97eeca513fe7239099c13016 (diff) | |
ASoC: nau8821: Add slew rate controls.
The patch supports DMIC clock slew rate controls.
Signed-off-by: Seven Lee <wtli@nuvoton.com>
Link: https://lore.kernel.org/r/20231107035230.1241683-3-wtli@nuvoton.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs')
| -rw-r--r-- | sound/soc/codecs/nau8821.c | 7 | ||||
| -rw-r--r-- | sound/soc/codecs/nau8821.h | 3 |
2 files changed, 10 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); diff --git a/sound/soc/codecs/nau8821.h b/sound/soc/codecs/nau8821.h index 00a888ed07ce..62eaad130b2e 100644 --- a/sound/soc/codecs/nau8821.h +++ b/sound/soc/codecs/nau8821.h @@ -236,6 +236,8 @@ #define NAU8821_DMIC_SRC_MASK (0x3 << NAU8821_DMIC_SRC_SFT) #define NAU8821_CLK_DMIC_SRC (0x2 << NAU8821_DMIC_SRC_SFT) #define NAU8821_DMIC_EN_SFT 0 +#define NAU8821_DMIC_SLEW_SFT 8 +#define NAU8821_DMIC_SLEW_MASK (0x7 << NAU8821_DMIC_SLEW_SFT) /* GPIO12_CTRL (0x1a) */ #define NAU8821_JKDET_PULL_UP (0x1 << 11) /* 0 - pull down, 1 - pull up */ @@ -573,6 +575,7 @@ struct nau8821 { int jack_eject_debounce; int fs; int dmic_clk_threshold; + int dmic_slew_rate; int key_enable; }; |