ASoC: nau8540: new codec driver

Add codec driver of NAU85L40
Signed-off-by: NJohn Hsu <KCHSU0@nuvoton.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/nau8540.txt

+NAU85L40 audio CODEC
+
+This device supports I2C only.
+
+Required properties:
+
+  - compatible : "nuvoton,nau8540"
+
+  - reg : the I2C address of the device.
+
+Example:
+
+codec: nau8540@1c {
+       compatible = "nuvoton,nau8540";
+       reg = <0x1c>;
+};

sound/soc/codecs/Kconfig

@@ -95,6 +95,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_MAX9877 if I2C
 	select SND_SOC_MC13783 if MFD_MC13XXX
 	select SND_SOC_ML26124 if I2C
+	select SND_SOC_NAU8540 if I2C
 	select SND_SOC_NAU8810 if I2C
 	select SND_SOC_NAU8825 if I2C
 	select SND_SOC_HDMI_CODEC
@@ -1105,6 +1106,10 @@ config SND_SOC_MC13783
 config SND_SOC_ML26124
 	tristate
 
+config SND_SOC_NAU8540
+       tristate "Nuvoton Technology Corporation NAU85L40 CODEC"
+       depends on I2C
+
 config SND_SOC_NAU8810
 	tristate "Nuvoton Technology Corporation NAU88C10 CODEC"
 	depends on I2C

sound/soc/codecs/Makefile

@@ -90,6 +90,7 @@ snd-soc-mc13783-objs := mc13783.o
 snd-soc-ml26124-objs := ml26124.o
 snd-soc-msm8916-analog-objs := msm8916-wcd-analog.o
 snd-soc-msm8916-digital-objs := msm8916-wcd-digital.o
+snd-soc-nau8540-objs := nau8540.o
 snd-soc-nau8810-objs := nau8810.o
 snd-soc-nau8825-objs := nau8825.o
 snd-soc-hdmi-codec-objs := hdmi-codec.o
@@ -318,6 +319,7 @@ obj-$(CONFIG_SND_SOC_MC13783)	+= snd-soc-mc13783.o
 obj-$(CONFIG_SND_SOC_ML26124)	+= snd-soc-ml26124.o
 obj-$(CONFIG_SND_SOC_MSM8916_WCD_ANALOG) +=snd-soc-msm8916-analog.o
 obj-$(CONFIG_SND_SOC_MSM8916_WCD_DIGITAL) +=snd-soc-msm8916-digital.o
+obj-$(CONFIG_SND_SOC_NAU8540)   += snd-soc-nau8540.o
 obj-$(CONFIG_SND_SOC_NAU8810)   += snd-soc-nau8810.o
 obj-$(CONFIG_SND_SOC_NAU8825)   += snd-soc-nau8825.o
 obj-$(CONFIG_SND_SOC_HDMI_CODEC)	+= snd-soc-hdmi-codec.o

sound/soc/codecs/nau8540.h

+/*
+ * NAU85L40 ALSA SoC audio driver
+ *
+ * Copyright 2016 Nuvoton Technology Corp.
+ * Author: John Hsu <KCHSU0@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 __NAU8540_H__
+#define __NAU8540_H__
+
+#define NAU8540_REG_SW_RESET                   0x00
+#define NAU8540_REG_POWER_MANAGEMENT   0x01
+#define NAU8540_REG_CLOCK_CTRL         0x02
+#define NAU8540_REG_CLOCK_SRC                  0x03
+#define NAU8540_REG_FLL1                       0x04
+#define NAU8540_REG_FLL2                       0x05
+#define NAU8540_REG_FLL3                       0x06
+#define NAU8540_REG_FLL4                       0x07
+#define NAU8540_REG_FLL5                       0x08
+#define NAU8540_REG_FLL6                       0x09
+#define NAU8540_REG_FLL_VCO_RSV                0x0A
+#define NAU8540_REG_PCM_CTRL0                  0x10
+#define NAU8540_REG_PCM_CTRL1                  0x11
+#define NAU8540_REG_PCM_CTRL2                  0x12
+#define NAU8540_REG_PCM_CTRL3                  0x13
+#define NAU8540_REG_PCM_CTRL4                  0x14
+#define NAU8540_REG_ALC_CONTROL_1              0x20
+#define NAU8540_REG_ALC_CONTROL_2              0x21
+#define NAU8540_REG_ALC_CONTROL_3              0x22
+#define NAU8540_REG_ALC_CONTROL_4              0x23
+#define NAU8540_REG_ALC_CONTROL_5              0x24
+#define NAU8540_REG_ALC_GAIN_CH12              0x2D
+#define NAU8540_REG_ALC_GAIN_CH34              0x2E
+#define NAU8540_REG_ALC_STATUS         0x2F
+#define NAU8540_REG_NOTCH_FIL1_CH1             0x30
+#define NAU8540_REG_NOTCH_FIL2_CH1             0x31
+#define NAU8540_REG_NOTCH_FIL1_CH2             0x32
+#define NAU8540_REG_NOTCH_FIL2_CH2             0x33
+#define NAU8540_REG_NOTCH_FIL1_CH3             0x34
+#define NAU8540_REG_NOTCH_FIL2_CH3             0x35
+#define NAU8540_REG_NOTCH_FIL1_CH4             0x36
+#define NAU8540_REG_NOTCH_FIL2_CH4             0x37
+#define NAU8540_REG_HPF_FILTER_CH12            0x38
+#define NAU8540_REG_HPF_FILTER_CH34            0x39
+#define NAU8540_REG_ADC_SAMPLE_RATE            0x3A
+#define NAU8540_REG_DIGITAL_GAIN_CH1           0x40
+#define NAU8540_REG_DIGITAL_GAIN_CH2           0x41
+#define NAU8540_REG_DIGITAL_GAIN_CH3           0x42
+#define NAU8540_REG_DIGITAL_GAIN_CH4           0x43
+#define NAU8540_REG_DIGITAL_MUX                0x44
+#define NAU8540_REG_P2P_CH1                    0x48
+#define NAU8540_REG_P2P_CH2                    0x49
+#define NAU8540_REG_P2P_CH3                    0x4A
+#define NAU8540_REG_P2P_CH4                    0x4B
+#define NAU8540_REG_PEAK_CH1                   0x4C
+#define NAU8540_REG_PEAK_CH2                   0x4D
+#define NAU8540_REG_PEAK_CH3                   0x4E
+#define NAU8540_REG_PEAK_CH4                   0x4F
+#define NAU8540_REG_GPIO_CTRL                  0x50
+#define NAU8540_REG_MISC_CTRL                  0x51
+#define NAU8540_REG_I2C_CTRL                   0x52
+#define NAU8540_REG_I2C_DEVICE_ID              0x58
+#define NAU8540_REG_RST                        0x5A
+#define NAU8540_REG_VMID_CTRL                  0x60
+#define NAU8540_REG_MUTE                       0x61
+#define NAU8540_REG_ANALOG_ADC1                0x64
+#define NAU8540_REG_ANALOG_ADC2                0x65
+#define NAU8540_REG_ANALOG_PWR         0x66
+#define NAU8540_REG_MIC_BIAS                   0x67
+#define NAU8540_REG_REFERENCE                  0x68
+#define NAU8540_REG_FEPGA1                     0x69
+#define NAU8540_REG_FEPGA2                     0x6A
+#define NAU8540_REG_FEPGA3                     0x6B
+#define NAU8540_REG_FEPGA4                     0x6C
+#define NAU8540_REG_PWR                        0x6D
+#define NAU8540_REG_MAX                        NAU8540_REG_PWR
+
+
+/* POWER_MANAGEMENT (0x01) */
+#define NAU8540_ADC4_EN                (0x1 << 3)
+#define NAU8540_ADC3_EN                (0x1 << 2)
+#define NAU8540_ADC2_EN                (0x1 << 1)
+#define NAU8540_ADC1_EN                0x1
+
+/* CLOCK_CTRL (0x02) */
+#define NAU8540_CLK_ADC_EN             (0x1 << 15)
+#define NAU8540_CLK_I2S_EN             (0x1 << 1)
+
+/* CLOCK_SRC (0x03) */
+#define NAU8540_CLK_SRC_SFT            15
+#define NAU8540_CLK_SRC_MASK           (1 << NAU8540_CLK_SRC_SFT)
+#define NAU8540_CLK_SRC_VCO            (1 << NAU8540_CLK_SRC_SFT)
+#define NAU8540_CLK_SRC_MCLK           (0 << NAU8540_CLK_SRC_SFT)
+#define NAU8540_CLK_ADC_SRC_SFT        6
+#define NAU8540_CLK_ADC_SRC_MASK       (0x3 << NAU8540_CLK_ADC_SRC_SFT)
+#define NAU8540_CLK_MCLK_SRC_MASK      0xf
+
+/* FLL1 (0x04) */
+#define NAU8540_FLL_RATIO_MASK 0x7f
+
+/* FLL3 (0x06) */
+#define NAU8540_FLL_CLK_SRC_SFT        10
+#define NAU8540_FLL_CLK_SRC_MASK       (0x3 << NAU8540_FLL_CLK_SRC_SFT)
+#define NAU8540_FLL_CLK_SRC_MCLK       (0 << NAU8540_FLL_CLK_SRC_SFT)
+#define NAU8540_FLL_CLK_SRC_BLK        (0x2 << NAU8540_FLL_CLK_SRC_SFT)
+#define NAU8540_FLL_CLK_SRC_FS         (0x3 << NAU8540_FLL_CLK_SRC_SFT)
+#define NAU8540_FLL_INTEGER_MASK       0x3ff
+
+/* FLL4 (0x07) */
+#define NAU8540_FLL_REF_DIV_SFT        10
+#define NAU8540_FLL_REF_DIV_MASK       (0x3 << NAU8540_FLL_REF_DIV_SFT)
+
+/* FLL5 (0x08) */
+#define NAU8540_FLL_PDB_DAC_EN (0x1 << 15)
+#define NAU8540_FLL_LOOP_FTR_EN        (0x1 << 14)
+#define NAU8540_FLL_CLK_SW_MASK        (0x1 << 13)
+#define NAU8540_FLL_CLK_SW_N2          (0x1 << 13)
+#define NAU8540_FLL_CLK_SW_REF (0x0 << 13)
+#define NAU8540_FLL_FTR_SW_MASK        (0x1 << 12)
+#define NAU8540_FLL_FTR_SW_ACCU        (0x1 << 12)
+#define NAU8540_FLL_FTR_SW_FILTER      (0x0 << 12)
+
+/* FLL6 (0x9) */
+#define NAU8540_DCO_EN                 (0x1 << 15)
+#define NAU8540_SDM_EN                 (0x1 << 14)
+
+/* PCM_CTRL0 (0x10) */
+#define NAU8540_I2S_BP_SFT             7
+#define NAU8540_I2S_BP_INV             (0x1 << NAU8540_I2S_BP_SFT)
+#define NAU8540_I2S_PCMB_SFT           6
+#define NAU8540_I2S_PCMB_EN            (0x1 << NAU8540_I2S_PCMB_SFT)
+#define NAU8540_I2S_DL_SFT             2
+#define NAU8540_I2S_DL_MASK            (0x3 << NAU8540_I2S_DL_SFT)
+#define NAU8540_I2S_DL_16              (0 << NAU8540_I2S_DL_SFT)
+#define NAU8540_I2S_DL_20              (0x1 << NAU8540_I2S_DL_SFT)
+#define NAU8540_I2S_DL_24              (0x2 << NAU8540_I2S_DL_SFT)
+#define NAU8540_I2S_DL_32              (0x3 << NAU8540_I2S_DL_SFT)
+#define NAU8540_I2S_DF_MASK            0x3
+#define NAU8540_I2S_DF_RIGTH           0
+#define NAU8540_I2S_DF_LEFT            0x1
+#define NAU8540_I2S_DF_I2S             0x2
+#define NAU8540_I2S_DF_PCM_AB          0x3
+
+/* PCM_CTRL1 (0x11) */
+#define NAU8540_I2S_LRC_DIV_SFT        12
+#define NAU8540_I2S_LRC_DIV_MASK       (0x3 << NAU8540_I2S_LRC_DIV_SFT)
+#define NAU8540_I2S_DO12_OE            (0x1 << 4)
+#define NAU8540_I2S_MS_SFT             3
+#define NAU8540_I2S_MS_MASK            (0x1 << NAU8540_I2S_MS_SFT)
+#define NAU8540_I2S_MS_MASTER          (0x1 << NAU8540_I2S_MS_SFT)
+#define NAU8540_I2S_MS_SLAVE           (0x0 << NAU8540_I2S_MS_SFT)
+#define NAU8540_I2S_BLK_DIV_MASK       0x7
+
+/* PCM_CTRL1 (0x12) */
+#define NAU8540_I2S_DO34_OE            (0x1 << 11)
+#define NAU8540_I2S_TSLOT_L_MASK       0x3ff
+
+/* PCM_CTRL4 (0x14) */
+#define NAU8540_TDM_MODE               (0x1 << 15)
+#define NAU8540_TDM_OFFSET_EN          (0x1 << 14)
+#define NAU8540_TDM_TX_MASK            0xf
+
+/* ADC_SAMPLE_RATE (0x3A) */
+#define NAU8540_ADC_OSR_MASK           0x3
+#define NAU8540_ADC_OSR_256            0x3
+#define NAU8540_ADC_OSR_128            0x2
+#define NAU8540_ADC_OSR_64             0x1
+#define NAU8540_ADC_OSR_32             0x0
+
+/* VMID_CTRL (0x60) */
+#define NAU8540_VMID_EN                (1 << 6)
+#define NAU8540_VMID_SEL_SFT           4
+#define NAU8540_VMID_SEL_MASK          (0x3 << NAU8540_VMID_SEL_SFT)
+
+/* MIC_BIAS (0x67) */
+#define NAU8540_PU_PRE                 (0x1 << 8)
+
+/* REFERENCE (0x68) */
+#define NAU8540_PRECHARGE_DIS          (0x1 << 13)
+#define NAU8540_GLOBAL_BIAS_EN (0x1 << 12)
+
+
+/* System Clock Source */
+enum {
+       NAU8540_CLK_DIS,
+       NAU8540_CLK_MCLK,
+       NAU8540_CLK_INTERNAL,
+       NAU8540_CLK_FLL_MCLK,
+       NAU8540_CLK_FLL_BLK,
+       NAU8540_CLK_FLL_FS,
+};
+
+struct nau8540 {
+       struct device *dev;
+       struct regmap *regmap;
+};
+
+struct nau8540_fll {
+       int mclk_src;
+       int ratio;
+       int fll_frac;
+       int fll_int;
+       int clk_ref_div;
+};
+
+struct nau8540_fll_attr {
+       unsigned int param;
+       unsigned int val;
+};
+
+/* over sampling rate */
+struct nau8540_osr_attr {
+       unsigned int osr;
+       unsigned int clk_src;
+};
+
+
+#endif /* __NAU8540_H__ */