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664 lines
17 KiB
664 lines
17 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* cs4265.c -- CS4265 ALSA SoC audio driver |
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* |
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* Copyright 2014 Cirrus Logic, Inc. |
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* |
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* Author: Paul Handrigan <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <linux/moduleparam.h> |
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#include <linux/kernel.h> |
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#include <linux/gpio/consumer.h> |
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#include <linux/init.h> |
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#include <linux/delay.h> |
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#include <linux/i2c.h> |
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#include <linux/input.h> |
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#include <linux/regmap.h> |
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#include <linux/slab.h> |
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#include <linux/platform_device.h> |
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#include <sound/core.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/soc.h> |
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#include <sound/soc-dapm.h> |
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#include <sound/initval.h> |
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#include <sound/tlv.h> |
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#include "cs4265.h" |
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struct cs4265_private { |
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struct regmap *regmap; |
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struct gpio_desc *reset_gpio; |
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u8 format; |
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u32 sysclk; |
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}; |
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static const struct reg_default cs4265_reg_defaults[] = { |
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{ CS4265_PWRCTL, 0x0F }, |
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{ CS4265_DAC_CTL, 0x08 }, |
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{ CS4265_ADC_CTL, 0x00 }, |
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{ CS4265_MCLK_FREQ, 0x00 }, |
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{ CS4265_SIG_SEL, 0x40 }, |
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{ CS4265_CHB_PGA_CTL, 0x00 }, |
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{ CS4265_CHA_PGA_CTL, 0x00 }, |
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{ CS4265_ADC_CTL2, 0x19 }, |
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{ CS4265_DAC_CHA_VOL, 0x00 }, |
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{ CS4265_DAC_CHB_VOL, 0x00 }, |
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{ CS4265_DAC_CTL2, 0xC0 }, |
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{ CS4265_SPDIF_CTL1, 0x00 }, |
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{ CS4265_SPDIF_CTL2, 0x00 }, |
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{ CS4265_INT_MASK, 0x00 }, |
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{ CS4265_STATUS_MODE_MSB, 0x00 }, |
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{ CS4265_STATUS_MODE_LSB, 0x00 }, |
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}; |
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static bool cs4265_readable_register(struct device *dev, unsigned int reg) |
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{ |
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switch (reg) { |
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case CS4265_CHIP_ID ... CS4265_MAX_REGISTER: |
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return true; |
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default: |
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return false; |
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} |
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} |
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static bool cs4265_volatile_register(struct device *dev, unsigned int reg) |
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{ |
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switch (reg) { |
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case CS4265_INT_STATUS: |
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return true; |
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default: |
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return false; |
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} |
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} |
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static DECLARE_TLV_DB_SCALE(pga_tlv, -1200, 50, 0); |
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static DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 0); |
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static const char * const digital_input_mux_text[] = { |
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"SDIN1", "SDIN2" |
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}; |
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static SOC_ENUM_SINGLE_DECL(digital_input_mux_enum, CS4265_SIG_SEL, 7, |
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digital_input_mux_text); |
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static const struct snd_kcontrol_new digital_input_mux = |
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SOC_DAPM_ENUM("Digital Input Mux", digital_input_mux_enum); |
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static const char * const mic_linein_text[] = { |
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"MIC", "LINEIN" |
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}; |
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static SOC_ENUM_SINGLE_DECL(mic_linein_enum, CS4265_ADC_CTL2, 0, |
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mic_linein_text); |
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static const char * const cam_mode_text[] = { |
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"One Byte", "Two Byte" |
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}; |
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static SOC_ENUM_SINGLE_DECL(cam_mode_enum, CS4265_SPDIF_CTL1, 5, |
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cam_mode_text); |
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static const char * const cam_mono_stereo_text[] = { |
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"Stereo", "Mono" |
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}; |
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static SOC_ENUM_SINGLE_DECL(spdif_mono_stereo_enum, CS4265_SPDIF_CTL2, 2, |
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cam_mono_stereo_text); |
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static const char * const mono_select_text[] = { |
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"Channel A", "Channel B" |
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}; |
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static SOC_ENUM_SINGLE_DECL(spdif_mono_select_enum, CS4265_SPDIF_CTL2, 0, |
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mono_select_text); |
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static const struct snd_kcontrol_new mic_linein_mux = |
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SOC_DAPM_ENUM("ADC Input Capture Mux", mic_linein_enum); |
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static const struct snd_kcontrol_new loopback_ctl = |
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SOC_DAPM_SINGLE("Switch", CS4265_SIG_SEL, 1, 1, 0); |
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static const struct snd_kcontrol_new spdif_switch = |
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SOC_DAPM_SINGLE("Switch", SND_SOC_NOPM, 0, 0, 0); |
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static const struct snd_kcontrol_new dac_switch = |
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SOC_DAPM_SINGLE("Switch", CS4265_PWRCTL, 1, 1, 0); |
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static const struct snd_kcontrol_new cs4265_snd_controls[] = { |
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SOC_DOUBLE_R_SX_TLV("PGA Volume", CS4265_CHA_PGA_CTL, |
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CS4265_CHB_PGA_CTL, 0, 0x28, 0x30, pga_tlv), |
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SOC_DOUBLE_R_TLV("DAC Volume", CS4265_DAC_CHA_VOL, |
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CS4265_DAC_CHB_VOL, 0, 0xFF, 1, dac_tlv), |
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SOC_SINGLE("De-emp 44.1kHz Switch", CS4265_DAC_CTL, 1, |
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1, 0), |
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SOC_SINGLE("DAC INV Switch", CS4265_DAC_CTL2, 5, |
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1, 0), |
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SOC_SINGLE("DAC Zero Cross Switch", CS4265_DAC_CTL2, 6, |
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1, 0), |
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SOC_SINGLE("DAC Soft Ramp Switch", CS4265_DAC_CTL2, 7, |
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1, 0), |
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SOC_SINGLE("ADC HPF Switch", CS4265_ADC_CTL, 1, |
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1, 0), |
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SOC_SINGLE("ADC Zero Cross Switch", CS4265_ADC_CTL2, 3, |
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1, 1), |
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SOC_SINGLE("ADC Soft Ramp Switch", CS4265_ADC_CTL2, 7, |
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1, 0), |
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SOC_SINGLE("E to F Buffer Disable Switch", CS4265_SPDIF_CTL1, |
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6, 1, 0), |
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SOC_ENUM("C Data Access", cam_mode_enum), |
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SOC_SINGLE("Validity Bit Control Switch", CS4265_SPDIF_CTL2, |
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3, 1, 0), |
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SOC_ENUM("SPDIF Mono/Stereo", spdif_mono_stereo_enum), |
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SOC_SINGLE("MMTLR Data Switch", CS4265_SPDIF_CTL2, 0, 1, 0), |
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SOC_ENUM("Mono Channel Select", spdif_mono_select_enum), |
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SND_SOC_BYTES("C Data Buffer", CS4265_C_DATA_BUFF, 24), |
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}; |
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static const struct snd_soc_dapm_widget cs4265_dapm_widgets[] = { |
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SND_SOC_DAPM_INPUT("LINEINL"), |
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SND_SOC_DAPM_INPUT("LINEINR"), |
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SND_SOC_DAPM_INPUT("MICL"), |
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SND_SOC_DAPM_INPUT("MICR"), |
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SND_SOC_DAPM_AIF_OUT("DOUT", NULL, 0, |
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SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_AIF_OUT("SPDIFOUT", NULL, 0, |
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SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_MUX("ADC Mux", SND_SOC_NOPM, 0, 0, &mic_linein_mux), |
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SND_SOC_DAPM_ADC("ADC", NULL, CS4265_PWRCTL, 2, 1), |
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SND_SOC_DAPM_PGA("Pre-amp MIC", CS4265_PWRCTL, 3, |
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1, NULL, 0), |
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SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, |
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0, 0, &digital_input_mux), |
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SND_SOC_DAPM_MIXER("SDIN1 Input Mixer", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_MIXER("SDIN2 Input Mixer", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_MIXER("SPDIF Transmitter", SND_SOC_NOPM, 0, 0, NULL, 0), |
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SND_SOC_DAPM_SWITCH("Loopback", SND_SOC_NOPM, 0, 0, |
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&loopback_ctl), |
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SND_SOC_DAPM_SWITCH("SPDIF", CS4265_SPDIF_CTL2, 5, 1, |
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&spdif_switch), |
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SND_SOC_DAPM_SWITCH("DAC", CS4265_PWRCTL, 1, 1, |
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&dac_switch), |
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SND_SOC_DAPM_AIF_IN("DIN1", NULL, 0, |
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SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_AIF_IN("DIN2", NULL, 0, |
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SND_SOC_NOPM, 0, 0), |
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SND_SOC_DAPM_AIF_IN("TXIN", NULL, 0, |
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CS4265_SPDIF_CTL2, 5, 1), |
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SND_SOC_DAPM_OUTPUT("LINEOUTL"), |
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SND_SOC_DAPM_OUTPUT("LINEOUTR"), |
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}; |
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static const struct snd_soc_dapm_route cs4265_audio_map[] = { |
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{"DIN1", NULL, "DAI1 Playback"}, |
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{"DIN2", NULL, "DAI2 Playback"}, |
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{"SDIN1 Input Mixer", NULL, "DIN1"}, |
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{"SDIN2 Input Mixer", NULL, "DIN2"}, |
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{"Input Mux", "SDIN1", "SDIN1 Input Mixer"}, |
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{"Input Mux", "SDIN2", "SDIN2 Input Mixer"}, |
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{"DAC", "Switch", "Input Mux"}, |
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{"SPDIF", "Switch", "Input Mux"}, |
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{"LINEOUTL", NULL, "DAC"}, |
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{"LINEOUTR", NULL, "DAC"}, |
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{"SPDIFOUT", NULL, "SPDIF"}, |
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{"Pre-amp MIC", NULL, "MICL"}, |
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{"Pre-amp MIC", NULL, "MICR"}, |
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{"ADC Mux", "MIC", "Pre-amp MIC"}, |
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{"ADC Mux", "LINEIN", "LINEINL"}, |
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{"ADC Mux", "LINEIN", "LINEINR"}, |
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{"ADC", NULL, "ADC Mux"}, |
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{"DOUT", NULL, "ADC"}, |
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{"DAI1 Capture", NULL, "DOUT"}, |
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{"DAI2 Capture", NULL, "DOUT"}, |
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/* Loopback */ |
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{"Loopback", "Switch", "ADC"}, |
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{"DAC", NULL, "Loopback"}, |
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}; |
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struct cs4265_clk_para { |
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u32 mclk; |
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u32 rate; |
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u8 fm_mode; /* values 1, 2, or 4 */ |
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u8 mclkdiv; |
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}; |
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static const struct cs4265_clk_para clk_map_table[] = { |
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/*32k*/ |
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{8192000, 32000, 0, 0}, |
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{12288000, 32000, 0, 1}, |
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{16384000, 32000, 0, 2}, |
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{24576000, 32000, 0, 3}, |
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{32768000, 32000, 0, 4}, |
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/*44.1k*/ |
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{11289600, 44100, 0, 0}, |
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{16934400, 44100, 0, 1}, |
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{22579200, 44100, 0, 2}, |
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{33868000, 44100, 0, 3}, |
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{45158400, 44100, 0, 4}, |
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/*48k*/ |
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{12288000, 48000, 0, 0}, |
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{18432000, 48000, 0, 1}, |
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{24576000, 48000, 0, 2}, |
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{36864000, 48000, 0, 3}, |
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{49152000, 48000, 0, 4}, |
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/*64k*/ |
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{8192000, 64000, 1, 0}, |
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{12288000, 64000, 1, 1}, |
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{16934400, 64000, 1, 2}, |
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{24576000, 64000, 1, 3}, |
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{32768000, 64000, 1, 4}, |
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/* 88.2k */ |
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{11289600, 88200, 1, 0}, |
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{16934400, 88200, 1, 1}, |
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{22579200, 88200, 1, 2}, |
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{33868000, 88200, 1, 3}, |
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{45158400, 88200, 1, 4}, |
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/* 96k */ |
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{12288000, 96000, 1, 0}, |
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{18432000, 96000, 1, 1}, |
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{24576000, 96000, 1, 2}, |
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{36864000, 96000, 1, 3}, |
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{49152000, 96000, 1, 4}, |
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/* 128k */ |
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{8192000, 128000, 2, 0}, |
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{12288000, 128000, 2, 1}, |
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{16934400, 128000, 2, 2}, |
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{24576000, 128000, 2, 3}, |
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{32768000, 128000, 2, 4}, |
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/* 176.4k */ |
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{11289600, 176400, 2, 0}, |
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{16934400, 176400, 2, 1}, |
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{22579200, 176400, 2, 2}, |
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{33868000, 176400, 2, 3}, |
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{49152000, 176400, 2, 4}, |
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/* 192k */ |
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{12288000, 192000, 2, 0}, |
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{18432000, 192000, 2, 1}, |
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{24576000, 192000, 2, 2}, |
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{36864000, 192000, 2, 3}, |
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{49152000, 192000, 2, 4}, |
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}; |
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static int cs4265_get_clk_index(int mclk, int rate) |
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{ |
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int i; |
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for (i = 0; i < ARRAY_SIZE(clk_map_table); i++) { |
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if (clk_map_table[i].rate == rate && |
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clk_map_table[i].mclk == mclk) |
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return i; |
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} |
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return -EINVAL; |
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} |
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static int cs4265_set_sysclk(struct snd_soc_dai *codec_dai, int clk_id, |
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unsigned int freq, int dir) |
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{ |
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struct snd_soc_component *component = codec_dai->component; |
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struct cs4265_private *cs4265 = snd_soc_component_get_drvdata(component); |
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int i; |
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if (clk_id != 0) { |
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dev_err(component->dev, "Invalid clk_id %d\n", clk_id); |
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return -EINVAL; |
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} |
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for (i = 0; i < ARRAY_SIZE(clk_map_table); i++) { |
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if (clk_map_table[i].mclk == freq) { |
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cs4265->sysclk = freq; |
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return 0; |
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} |
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} |
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cs4265->sysclk = 0; |
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dev_err(component->dev, "Invalid freq parameter %d\n", freq); |
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return -EINVAL; |
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} |
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static int cs4265_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) |
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{ |
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struct snd_soc_component *component = codec_dai->component; |
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struct cs4265_private *cs4265 = snd_soc_component_get_drvdata(component); |
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u8 iface = 0; |
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switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
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case SND_SOC_DAIFMT_CBM_CFM: |
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snd_soc_component_update_bits(component, CS4265_ADC_CTL, |
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CS4265_ADC_MASTER, |
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CS4265_ADC_MASTER); |
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break; |
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case SND_SOC_DAIFMT_CBS_CFS: |
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snd_soc_component_update_bits(component, CS4265_ADC_CTL, |
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CS4265_ADC_MASTER, |
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0); |
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break; |
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default: |
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return -EINVAL; |
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} |
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/* interface format */ |
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switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
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case SND_SOC_DAIFMT_I2S: |
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iface |= SND_SOC_DAIFMT_I2S; |
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break; |
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case SND_SOC_DAIFMT_RIGHT_J: |
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iface |= SND_SOC_DAIFMT_RIGHT_J; |
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break; |
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case SND_SOC_DAIFMT_LEFT_J: |
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iface |= SND_SOC_DAIFMT_LEFT_J; |
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break; |
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default: |
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return -EINVAL; |
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} |
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cs4265->format = iface; |
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return 0; |
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} |
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static int cs4265_mute(struct snd_soc_dai *dai, int mute, int direction) |
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{ |
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struct snd_soc_component *component = dai->component; |
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if (mute) { |
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snd_soc_component_update_bits(component, CS4265_DAC_CTL, |
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CS4265_DAC_CTL_MUTE, |
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CS4265_DAC_CTL_MUTE); |
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snd_soc_component_update_bits(component, CS4265_SPDIF_CTL2, |
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CS4265_SPDIF_CTL2_MUTE, |
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CS4265_SPDIF_CTL2_MUTE); |
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} else { |
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snd_soc_component_update_bits(component, CS4265_DAC_CTL, |
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CS4265_DAC_CTL_MUTE, |
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0); |
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snd_soc_component_update_bits(component, CS4265_SPDIF_CTL2, |
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CS4265_SPDIF_CTL2_MUTE, |
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0); |
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} |
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return 0; |
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} |
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static int cs4265_pcm_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params, |
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struct snd_soc_dai *dai) |
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{ |
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struct snd_soc_component *component = dai->component; |
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struct cs4265_private *cs4265 = snd_soc_component_get_drvdata(component); |
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int index; |
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if (substream->stream == SNDRV_PCM_STREAM_CAPTURE && |
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((cs4265->format & SND_SOC_DAIFMT_FORMAT_MASK) |
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== SND_SOC_DAIFMT_RIGHT_J)) |
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return -EINVAL; |
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index = cs4265_get_clk_index(cs4265->sysclk, params_rate(params)); |
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if (index >= 0) { |
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snd_soc_component_update_bits(component, CS4265_ADC_CTL, |
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CS4265_ADC_FM, clk_map_table[index].fm_mode << 6); |
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snd_soc_component_update_bits(component, CS4265_MCLK_FREQ, |
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CS4265_MCLK_FREQ_MASK, |
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clk_map_table[index].mclkdiv << 4); |
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|
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} else { |
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dev_err(component->dev, "can't get correct mclk\n"); |
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return -EINVAL; |
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} |
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|
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switch (cs4265->format & SND_SOC_DAIFMT_FORMAT_MASK) { |
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case SND_SOC_DAIFMT_I2S: |
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snd_soc_component_update_bits(component, CS4265_DAC_CTL, |
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CS4265_DAC_CTL_DIF, (1 << 4)); |
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snd_soc_component_update_bits(component, CS4265_ADC_CTL, |
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CS4265_ADC_DIF, (1 << 4)); |
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snd_soc_component_update_bits(component, CS4265_SPDIF_CTL2, |
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CS4265_SPDIF_CTL2_DIF, (1 << 6)); |
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break; |
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case SND_SOC_DAIFMT_RIGHT_J: |
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if (params_width(params) == 16) { |
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snd_soc_component_update_bits(component, CS4265_DAC_CTL, |
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CS4265_DAC_CTL_DIF, (2 << 4)); |
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snd_soc_component_update_bits(component, CS4265_SPDIF_CTL2, |
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CS4265_SPDIF_CTL2_DIF, (2 << 6)); |
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} else { |
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snd_soc_component_update_bits(component, CS4265_DAC_CTL, |
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CS4265_DAC_CTL_DIF, (3 << 4)); |
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snd_soc_component_update_bits(component, CS4265_SPDIF_CTL2, |
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CS4265_SPDIF_CTL2_DIF, (3 << 6)); |
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} |
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break; |
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case SND_SOC_DAIFMT_LEFT_J: |
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snd_soc_component_update_bits(component, CS4265_DAC_CTL, |
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CS4265_DAC_CTL_DIF, 0); |
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snd_soc_component_update_bits(component, CS4265_ADC_CTL, |
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CS4265_ADC_DIF, 0); |
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snd_soc_component_update_bits(component, CS4265_SPDIF_CTL2, |
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CS4265_SPDIF_CTL2_DIF, 0); |
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|
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break; |
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default: |
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return -EINVAL; |
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} |
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return 0; |
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} |
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|
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static int cs4265_set_bias_level(struct snd_soc_component *component, |
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enum snd_soc_bias_level level) |
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{ |
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switch (level) { |
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case SND_SOC_BIAS_ON: |
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break; |
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case SND_SOC_BIAS_PREPARE: |
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snd_soc_component_update_bits(component, CS4265_PWRCTL, |
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CS4265_PWRCTL_PDN, 0); |
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break; |
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case SND_SOC_BIAS_STANDBY: |
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snd_soc_component_update_bits(component, CS4265_PWRCTL, |
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CS4265_PWRCTL_PDN, |
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CS4265_PWRCTL_PDN); |
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break; |
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case SND_SOC_BIAS_OFF: |
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snd_soc_component_update_bits(component, CS4265_PWRCTL, |
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CS4265_PWRCTL_PDN, |
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CS4265_PWRCTL_PDN); |
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break; |
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} |
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return 0; |
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} |
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|
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#define CS4265_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ |
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SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_64000 | \ |
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SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | \ |
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SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000) |
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#define CS4265_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | \ |
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SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_U24_LE | \ |
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SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE) |
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static const struct snd_soc_dai_ops cs4265_ops = { |
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.hw_params = cs4265_pcm_hw_params, |
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.mute_stream = cs4265_mute, |
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.set_fmt = cs4265_set_fmt, |
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.set_sysclk = cs4265_set_sysclk, |
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.no_capture_mute = 1, |
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}; |
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static struct snd_soc_dai_driver cs4265_dai[] = { |
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{ |
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.name = "cs4265-dai1", |
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.playback = { |
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.stream_name = "DAI1 Playback", |
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.channels_min = 1, |
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.channels_max = 2, |
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.rates = CS4265_RATES, |
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.formats = CS4265_FORMATS, |
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}, |
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.capture = { |
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.stream_name = "DAI1 Capture", |
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.channels_min = 1, |
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.channels_max = 2, |
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.rates = CS4265_RATES, |
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.formats = CS4265_FORMATS, |
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}, |
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.ops = &cs4265_ops, |
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}, |
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{ |
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.name = "cs4265-dai2", |
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.playback = { |
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.stream_name = "DAI2 Playback", |
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.channels_min = 1, |
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.channels_max = 2, |
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.rates = CS4265_RATES, |
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.formats = CS4265_FORMATS, |
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}, |
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.capture = { |
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.stream_name = "DAI2 Capture", |
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.channels_min = 1, |
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.channels_max = 2, |
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.rates = CS4265_RATES, |
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.formats = CS4265_FORMATS, |
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}, |
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.ops = &cs4265_ops, |
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}, |
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}; |
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static const struct snd_soc_component_driver soc_component_cs4265 = { |
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.set_bias_level = cs4265_set_bias_level, |
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.controls = cs4265_snd_controls, |
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.num_controls = ARRAY_SIZE(cs4265_snd_controls), |
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.dapm_widgets = cs4265_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(cs4265_dapm_widgets), |
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.dapm_routes = cs4265_audio_map, |
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.num_dapm_routes = ARRAY_SIZE(cs4265_audio_map), |
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.idle_bias_on = 1, |
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.use_pmdown_time = 1, |
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.endianness = 1, |
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.non_legacy_dai_naming = 1, |
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}; |
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static const struct regmap_config cs4265_regmap = { |
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.reg_bits = 8, |
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.val_bits = 8, |
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.max_register = CS4265_MAX_REGISTER, |
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.reg_defaults = cs4265_reg_defaults, |
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.num_reg_defaults = ARRAY_SIZE(cs4265_reg_defaults), |
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.readable_reg = cs4265_readable_register, |
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.volatile_reg = cs4265_volatile_register, |
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.cache_type = REGCACHE_RBTREE, |
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}; |
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static int cs4265_i2c_probe(struct i2c_client *i2c_client, |
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const struct i2c_device_id *id) |
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{ |
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struct cs4265_private *cs4265; |
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int ret; |
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unsigned int devid = 0; |
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unsigned int reg; |
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cs4265 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs4265_private), |
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GFP_KERNEL); |
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if (cs4265 == NULL) |
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return -ENOMEM; |
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cs4265->regmap = devm_regmap_init_i2c(i2c_client, &cs4265_regmap); |
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if (IS_ERR(cs4265->regmap)) { |
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ret = PTR_ERR(cs4265->regmap); |
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dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret); |
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return ret; |
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} |
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cs4265->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev, |
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"reset", GPIOD_OUT_LOW); |
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if (IS_ERR(cs4265->reset_gpio)) |
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return PTR_ERR(cs4265->reset_gpio); |
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if (cs4265->reset_gpio) { |
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mdelay(1); |
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gpiod_set_value_cansleep(cs4265->reset_gpio, 1); |
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} |
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i2c_set_clientdata(i2c_client, cs4265); |
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ret = regmap_read(cs4265->regmap, CS4265_CHIP_ID, ®); |
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if (ret) { |
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dev_err(&i2c_client->dev, "Failed to read chip ID: %d\n", ret); |
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return ret; |
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} |
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devid = reg & CS4265_CHIP_ID_MASK; |
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if (devid != CS4265_CHIP_ID_VAL) { |
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ret = -ENODEV; |
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dev_err(&i2c_client->dev, |
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"CS4265 Part Number ID: 0x%x Expected: 0x%x\n", |
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devid >> 4, CS4265_CHIP_ID_VAL >> 4); |
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return ret; |
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} |
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dev_info(&i2c_client->dev, |
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"CS4265 Version %x\n", |
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reg & CS4265_REV_ID_MASK); |
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regmap_write(cs4265->regmap, CS4265_PWRCTL, 0x0F); |
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return devm_snd_soc_register_component(&i2c_client->dev, |
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&soc_component_cs4265, cs4265_dai, |
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ARRAY_SIZE(cs4265_dai)); |
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} |
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static int cs4265_i2c_remove(struct i2c_client *i2c) |
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{ |
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struct cs4265_private *cs4265 = i2c_get_clientdata(i2c); |
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|
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if (cs4265->reset_gpio) |
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gpiod_set_value_cansleep(cs4265->reset_gpio, 0); |
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return 0; |
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} |
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static const struct of_device_id cs4265_of_match[] = { |
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{ .compatible = "cirrus,cs4265", }, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(of, cs4265_of_match); |
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|
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static const struct i2c_device_id cs4265_id[] = { |
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{ "cs4265", 0 }, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(i2c, cs4265_id); |
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|
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static struct i2c_driver cs4265_i2c_driver = { |
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.driver = { |
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.name = "cs4265", |
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.of_match_table = cs4265_of_match, |
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}, |
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.id_table = cs4265_id, |
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.probe = cs4265_i2c_probe, |
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.remove = cs4265_i2c_remove, |
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}; |
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module_i2c_driver(cs4265_i2c_driver); |
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MODULE_DESCRIPTION("ASoC CS4265 driver"); |
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MODULE_AUTHOR("Paul Handrigan, Cirrus Logic Inc, <[email protected]>"); |
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MODULE_LICENSE("GPL");
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