ASoC: nau8822: new codec driver

Add driver for NAU88C22.
Signed-off-by: David Lin <CTLIN0@nuvoton.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/nau8822.txt

+NAU8822 audio CODEC
+
+This device supports I2C only.
+
+Required properties:
+
+  - compatible : "nuvoton,nau8822"
+
+  - reg : the I2C address of the device.
+
+Example:
+
+codec: nau8822@1a {
+	compatible = "nuvoton,nau8822";
+	reg = <0x1a>;
+};

sound/soc/codecs/Kconfig

@@ -110,6 +110,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_MT6351 if MTK_PMIC_WRAP
 	select SND_SOC_NAU8540 if I2C
 	select SND_SOC_NAU8810 if I2C
+	select SND_SOC_NAU8822 if I2C
 	select SND_SOC_NAU8824 if I2C
 	select SND_SOC_NAU8825 if I2C
 	select SND_SOC_HDMI_CODEC
@@ -1326,6 +1327,10 @@ config SND_SOC_NAU8810
 	tristate "Nuvoton Technology Corporation NAU88C10 CODEC"
 	depends on I2C
 
+config SND_SOC_NAU8822
+	tristate "Nuvoton Technology Corporation NAU88C22 CODEC"
+	depends on I2C
+
 config SND_SOC_NAU8824
 	tristate "Nuvoton Technology Corporation NAU88L24 CODEC"
 	depends on I2C

sound/soc/codecs/Makefile

@@ -107,6 +107,7 @@ snd-soc-msm8916-digital-objs := msm8916-wcd-digital.o
 snd-soc-mt6351-objs := mt6351.o
 snd-soc-nau8540-objs := nau8540.o
 snd-soc-nau8810-objs := nau8810.o
+snd-soc-nau8822-objs := nau8822.o
 snd-soc-nau8824-objs := nau8824.o
 snd-soc-nau8825-objs := nau8825.o
 snd-soc-hdmi-codec-objs := hdmi-codec.o
@@ -371,6 +372,7 @@ obj-$(CONFIG_SND_SOC_MSM8916_WCD_DIGITAL) +=snd-soc-msm8916-digital.o
 obj-$(CONFIG_SND_SOC_MT6351)	+= snd-soc-mt6351.o
 obj-$(CONFIG_SND_SOC_NAU8540)   += snd-soc-nau8540.o
 obj-$(CONFIG_SND_SOC_NAU8810)   += snd-soc-nau8810.o
+obj-$(CONFIG_SND_SOC_NAU8822)   += snd-soc-nau8822.o
 obj-$(CONFIG_SND_SOC_NAU8824)   += snd-soc-nau8824.o
 obj-$(CONFIG_SND_SOC_NAU8825)   += snd-soc-nau8825.o
 obj-$(CONFIG_SND_SOC_HDMI_CODEC)	+= snd-soc-hdmi-codec.o

sound/soc/codecs/nau8822.h

+/*
+ * nau8822.h  --  NAU8822 Soc Audio Codec driver
+ *
+ * Author: David Lin <ctlin0@nuvoton.com>
+ * Co-author: John Hsu <kchsu0@nuvoton.com>
+ * Co-author: Seven Li <wtli@nuvoton.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __NAU8822_H__
+#define __NAU8822_H__
+
+#define NAU8822_REG_RESET			0x00
+#define NAU8822_REG_POWER_MANAGEMENT_1		0x01
+#define NAU8822_REG_POWER_MANAGEMENT_2		0x02
+#define NAU8822_REG_POWER_MANAGEMENT_3		0x03
+#define NAU8822_REG_AUDIO_INTERFACE		0x04
+#define NAU8822_REG_COMPANDING_CONTROL		0x05
+#define NAU8822_REG_CLOCKING			0x06
+#define NAU8822_REG_ADDITIONAL_CONTROL		0x07
+#define NAU8822_REG_GPIO_CONTROL		0x08
+#define NAU8822_REG_JACK_DETECT_CONTROL_1	0x09
+#define NAU8822_REG_DAC_CONTROL			0x0A
+#define NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME	0x0B
+#define NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME	0x0C
+#define NAU8822_REG_JACK_DETECT_CONTROL_2	0x0D
+#define NAU8822_REG_ADC_CONTROL			0x0E
+#define NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME	0x0F
+#define NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME	0x10
+#define NAU8822_REG_EQ1				0x12
+#define NAU8822_REG_EQ2				0x13
+#define NAU8822_REG_EQ3				0x14
+#define NAU8822_REG_EQ4				0x15
+#define NAU8822_REG_EQ5				0x16
+#define NAU8822_REG_DAC_LIMITER_1		0x18
+#define NAU8822_REG_DAC_LIMITER_2		0x19
+#define NAU8822_REG_NOTCH_FILTER_1		0x1B
+#define NAU8822_REG_NOTCH_FILTER_2		0x1C
+#define NAU8822_REG_NOTCH_FILTER_3		0x1D
+#define NAU8822_REG_NOTCH_FILTER_4		0x1E
+#define NAU8822_REG_ALC_CONTROL_1		0x20
+#define NAU8822_REG_ALC_CONTROL_2		0x21
+#define NAU8822_REG_ALC_CONTROL_3		0x22
+#define NAU8822_REG_NOISE_GATE			0x23
+#define NAU8822_REG_PLL_N			0x24
+#define NAU8822_REG_PLL_K1			0x25
+#define NAU8822_REG_PLL_K2			0x26
+#define NAU8822_REG_PLL_K3			0x27
+#define NAU8822_REG_3D_CONTROL			0x29
+#define NAU8822_REG_RIGHT_SPEAKER_CONTROL	0x2B
+#define NAU8822_REG_INPUT_CONTROL		0x2C
+#define NAU8822_REG_LEFT_INP_PGA_CONTROL	0x2D
+#define NAU8822_REG_RIGHT_INP_PGA_CONTROL	0x2E
+#define NAU8822_REG_LEFT_ADC_BOOST_CONTROL	0x2F
+#define NAU8822_REG_RIGHT_ADC_BOOST_CONTROL	0x30
+#define NAU8822_REG_OUTPUT_CONTROL		0x31
+#define NAU8822_REG_LEFT_MIXER_CONTROL		0x32
+#define NAU8822_REG_RIGHT_MIXER_CONTROL		0x33
+#define NAU8822_REG_LHP_VOLUME			0x34
+#define NAU8822_REG_RHP_VOLUME			0x35
+#define NAU8822_REG_LSPKOUT_VOLUME		0x36
+#define NAU8822_REG_RSPKOUT_VOLUME		0x37
+#define NAU8822_REG_AUX2_MIXER			0x38
+#define NAU8822_REG_AUX1_MIXER			0x39
+#define NAU8822_REG_POWER_MANAGEMENT_4		0x3A
+#define NAU8822_REG_LEFT_TIME_SLOT		0x3B
+#define NAU8822_REG_MISC			0x3C
+#define NAU8822_REG_RIGHT_TIME_SLOT		0x3D
+#define NAU8822_REG_DEVICE_REVISION		0x3E
+#define NAU8822_REG_DEVICE_ID			0x3F
+#define NAU8822_REG_DAC_DITHER			0x41
+#define NAU8822_REG_ALC_ENHANCE_1		0x46
+#define NAU8822_REG_ALC_ENHANCE_2		0x47
+#define NAU8822_REG_192KHZ_SAMPLING		0x48
+#define NAU8822_REG_MISC_CONTROL		0x49
+#define NAU8822_REG_INPUT_TIEOFF		0x4A
+#define NAU8822_REG_POWER_REDUCTION		0x4B
+#define NAU8822_REG_AGC_PEAK2PEAK		0x4C
+#define NAU8822_REG_AGC_PEAK_DETECT		0x4D
+#define NAU8822_REG_AUTOMUTE_CONTROL		0x4E
+#define NAU8822_REG_OUTPUT_TIEOFF		0x4F
+#define NAU8822_REG_MAX_REGISTER		NAU8822_REG_OUTPUT_TIEOFF
+
+/* NAU8822_REG_POWER_MANAGEMENT_1 (0x1) */
+#define NAU8822_REFIMP_MASK			0x3
+#define NAU8822_REFIMP_80K			0x1
+#define NAU8822_REFIMP_300K			0x2
+#define NAU8822_REFIMP_3K			0x3
+#define NAU8822_IOBUF_EN			(0x1 << 2)
+#define NAU8822_ABIAS_EN			(0x1 << 3)
+
+/* NAU8822_REG_AUDIO_INTERFACE (0x4) */
+#define NAU8822_AIFMT_MASK			(0x3 << 3)
+#define NAU8822_WLEN_MASK			(0x3 << 5)
+#define NAU8822_WLEN_20				(0x1 << 5)
+#define NAU8822_WLEN_24				(0x2 << 5)
+#define NAU8822_WLEN_32				(0x3 << 5)
+#define NAU8822_LRP_MASK			(0x1 << 7)
+#define NAU8822_BCLKP_MASK			(0x1 << 8)
+
+/* NAU8822_REG_COMPANDING_CONTROL (0x5) */
+#define NAU8822_ADDAP_SFT			0
+#define NAU8822_ADCCM_SFT			1
+#define NAU8822_DACCM_SFT			3
+
+/* NAU8822_REG_CLOCKING (0x6) */
+#define NAU8822_CLKIOEN_MASK			0x1
+#define NAU8822_MCLKSEL_SFT			5
+#define NAU8822_MCLKSEL_MASK			(0x7 << 5)
+#define NAU8822_BCLKSEL_SFT			2
+#define NAU8822_BCLKSEL_MASK			(0x7 << 2)
+#define NAU8822_CLKM_MASK			(0x1 << 8)
+#define NAU8822_CLKM_MCLK			(0x0 << 8)
+#define NAU8822_CLKM_PLL			(0x1 << 8)
+
+/* NAU8822_REG_ADDITIONAL_CONTROL (0x08) */
+#define NAU8822_SMPLR_SFT			1
+#define NAU8822_SMPLR_MASK			(0x7 << 1)
+#define NAU8822_SMPLR_48K			(0x0 << 1)
+#define NAU8822_SMPLR_32K			(0x1 << 1)
+#define NAU8822_SMPLR_24K			(0x2 << 1)
+#define NAU8822_SMPLR_16K			(0x3 << 1)
+#define NAU8822_SMPLR_12K			(0x4 << 1)
+#define NAU8822_SMPLR_8K			(0x5 << 1)
+
+/* NAU8822_REG_EQ1 (0x12) */
+#define NAU8822_EQ1GC_SFT			0
+#define NAU8822_EQ1CF_SFT			5
+#define NAU8822_EQM_SFT				8
+
+/* NAU8822_REG_EQ2 (0x13) */
+#define NAU8822_EQ2GC_SFT			0
+#define NAU8822_EQ2CF_SFT			5
+#define NAU8822_EQ2BW_SFT			8
+
+/* NAU8822_REG_EQ3 (0x14) */
+#define NAU8822_EQ3GC_SFT			0
+#define NAU8822_EQ3CF_SFT			5
+#define NAU8822_EQ3BW_SFT			8
+
+/* NAU8822_REG_EQ4 (0x15) */
+#define NAU8822_EQ4GC_SFT			0
+#define NAU8822_EQ4CF_SFT			5
+#define NAU8822_EQ4BW_SFT			8
+
+/* NAU8822_REG_EQ5 (0x16) */
+#define NAU8822_EQ5GC_SFT			0
+#define NAU8822_EQ5CF_SFT			5
+
+/* NAU8822_REG_ALC_CONTROL_1 (0x20) */
+#define NAU8822_ALCMINGAIN_SFT			0
+#define NAU8822_ALCMXGAIN_SFT			3
+#define NAU8822_ALCEN_SFT			7
+
+/* NAU8822_REG_ALC_CONTROL_2 (0x21) */
+#define NAU8822_ALCSL_SFT			0
+#define NAU8822_ALCHT_SFT			4
+
+/* NAU8822_REG_ALC_CONTROL_3 (0x22) */
+#define NAU8822_ALCATK_SFT			0
+#define NAU8822_ALCDCY_SFT			4
+#define NAU8822_ALCM_SFT			8
+
+/* NAU8822_REG_PLL_N (0x24) */
+#define NAU8822_PLLMCLK_DIV2			(0x1 << 4)
+#define NAU8822_PLLN_MASK			0xF
+
+#define NAU8822_PLLK1_SFT			18
+#define NAU8822_PLLK1_MASK			0x3F
+
+/* NAU8822_REG_PLL_K2 (0x26) */
+#define NAU8822_PLLK2_SFT			9
+#define NAU8822_PLLK2_MASK			0x1FF
+
+/* NAU8822_REG_PLL_K3 (0x27) */
+#define NAU8822_PLLK3_MASK			0x1FF
+
+/* System Clock Source */
+enum {
+	NAU8822_CLK_MCLK,
+	NAU8822_CLK_PLL,
+};
+
+struct nau8822_pll {
+	int pre_factor;
+	int mclk_scaler;
+	int pll_frac;
+	int pll_int;
+};
+
+/* Codec Private Data */
+struct nau8822 {
+	struct device *dev;
+	struct regmap *regmap;
+	int mclk_idx;
+	struct nau8822_pll pll;
+	int sysclk;
+	int div_id;
+};
+
+#endif	/* __NAU8822_H__ */