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| author | David Lin <CTLIN0@nuvoton.com> | 2024-01-16 10:45:20 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-01-22 00:06:40 +0000 |
| commit | 9423d7b9edba043c39f1607c752677c8b769922f (patch) | |
| tree | daada5eff495b234a2fd2a2ce9835966920277b6 /sound/soc/codecs/nau8540.h | |
| parent | 90050b8d2e1556238d4c69abc11270de523bf955 (diff) | |
| download | linux-stable-9423d7b9edba043c39f1607c752677c8b769922f.tar.gz linux-stable-9423d7b9edba043c39f1607c752677c8b769922f.tar.bz2 linux-stable-9423d7b9edba043c39f1607c752677c8b769922f.zip | |
ASoC: nau8540: Add pre-charge actions for input
Adding pre-charge mechanism to make FEPGA power stable faster. It
not only improved the recording quality at the beginning but also
meaningfully decreased the final adc delay time.
Signed-off-by: David Lin <CTLIN0@nuvoton.com>
Link: https://msgid.link/r/20240116024519.24569-1-CTLIN0@nuvoton.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/nau8540.h')
| -rw-r--r-- | sound/soc/codecs/nau8540.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/sound/soc/codecs/nau8540.h b/sound/soc/codecs/nau8540.h index 2ce6063d462b..762bb93b06fd 100644 --- a/sound/soc/codecs/nau8540.h +++ b/sound/soc/codecs/nau8540.h @@ -78,6 +78,7 @@ /* POWER_MANAGEMENT (0x01) */ +#define NAU8540_ADC_ALL_EN 0xf #define NAU8540_ADC4_EN (0x1 << 3) #define NAU8540_ADC3_EN (0x1 << 2) #define NAU8540_ADC2_EN (0x1 << 1) @@ -202,6 +203,7 @@ /* REFERENCE (0x68) */ #define NAU8540_PRECHARGE_DIS (0x1 << 13) #define NAU8540_GLOBAL_BIAS_EN (0x1 << 12) +#define NAU8540_DISCHRG_EN (0x1 << 11) /* FEPGA1 (0x69) */ #define NAU8540_FEPGA1_MODCH2_SHT_SFT 7 @@ -214,7 +216,16 @@ #define NAU8540_FEPGA2_MODCH4_SHT (0x1 << NAU8540_FEPGA2_MODCH4_SHT_SFT) #define NAU8540_FEPGA2_MODCH3_SHT_SFT 3 #define NAU8540_FEPGA2_MODCH3_SHT (0x1 << NAU8540_FEPGA2_MODCH3_SHT_SFT) - +#define NAU8540_ACDC_CTL_SFT 8 +#define NAU8540_ACDC_CTL_MASK (0xff << NAU8540_ACDC_CTL_SFT) +#define NAU8540_ACDC_CTL_MIC4N_VREF (0x1 << 15) +#define NAU8540_ACDC_CTL_MIC4P_VREF (0x1 << 14) +#define NAU8540_ACDC_CTL_MIC3N_VREF (0x1 << 13) +#define NAU8540_ACDC_CTL_MIC3P_VREF (0x1 << 12) +#define NAU8540_ACDC_CTL_MIC2N_VREF (0x1 << 11) +#define NAU8540_ACDC_CTL_MIC2P_VREF (0x1 << 10) +#define NAU8540_ACDC_CTL_MIC1N_VREF (0x1 << 9) +#define NAU8540_ACDC_CTL_MIC1P_VREF (0x1 << 8) /* System Clock Source */ enum { |