Unverified Commit 91d1a18b authored by Seven Lee's avatar Seven Lee Committed by Mark Brown
Browse files

ASoC: nau8821: Add slew rate controls. 



The patch supports DMIC clock slew rate controls.

Signed-off-by: default avatarSeven Lee <wtli@nuvoton.com>
Link: https://lore.kernel.org/r/20231107035230.1241683-3-wtli@nuvoton.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 1fb1a7c4

sound/soc/codecs/nau8821.c

+7 −0
Original line number Diff line number Diff line
@@ -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);

sound/soc/codecs/nau8821.h

+3 −0
Original line number Diff line number Diff line
@@ -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;

};