*** BLURB HERE ***
Kevin Lu (1):
Add a new kcontrol for phase calib, remove unnecessary header file,
make code more comply with linux coding style
--
2.17.1
Signed-off-by: Kevin Lu <[email protected]>
---
tlv320adcx140.c | 1218 +++++++++++++++++++++++++++++++++++++++++++++++
tlv320adcx140.h | 157 ++++++
2 files changed, 1375 insertions(+)
create mode 100644 tlv320adcx140.c
create mode 100644 tlv320adcx140.h
diff --git a/tlv320adcx140.c b/tlv320adcx140.c
new file mode 100644
index 0000000..bc5e6e6
--- /dev/null
+++ b/tlv320adcx140.c
@@ -0,0 +1,1218 @@
+// SPDX-License-Identifier: GPL-2.0
+// TLV320ADCX140 Sound driver
+// Copyright (C) 2020 - 2022 Texas Instruments Incorporated
+// - https://www.ti.com/
+/*
+ * Author: Kevin Lu <[email protected]>
+ *
+ * Features:-
+ *
+ * o Add a new kcontrol for phase calib
+ * o Remove unnecessary header file
+ * o Make code more comply with linux coding style
+ */
+
+
+#include <linux/module.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/gpio/consumer.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#include "tlv320adcx140.h"
+
+struct adcx140_priv {
+ struct snd_soc_component *component;
+ struct regulator *supply_areg;
+ struct gpio_desc *gpio_reset;
+ struct regmap *regmap;
+ struct device *dev;
+
+ bool micbias_vg;
+
+ unsigned int dai_fmt;
+ unsigned int slot_width;
+ int phase_calib_on;
+};
+
+static const char * const gpo_config_names[] = {
+ "ti,gpo-config-1",
+ "ti,gpo-config-2",
+ "ti,gpo-config-3",
+ "ti,gpo-config-4",
+};
+
+static const struct reg_default adcx140_reg_defaults[] = {
+ { ADCX140_PAGE_SELECT, 0x00 },
+ { ADCX140_SW_RESET, 0x00 },
+ { ADCX140_SLEEP_CFG, 0x00 },
+ { ADCX140_SHDN_CFG, 0x05 },
+ { ADCX140_ASI_CFG0, 0x30 },
+ { ADCX140_ASI_CFG1, 0x00 },
+ { ADCX140_ASI_CFG2, 0x00 },
+ { ADCX140_ASI_CH1, 0x00 },
+ { ADCX140_ASI_CH2, 0x01 },
+ { ADCX140_ASI_CH3, 0x02 },
+ { ADCX140_ASI_CH4, 0x03 },
+ { ADCX140_ASI_CH5, 0x04 },
+ { ADCX140_ASI_CH6, 0x05 },
+ { ADCX140_ASI_CH7, 0x06 },
+ { ADCX140_ASI_CH8, 0x07 },
+ { ADCX140_MST_CFG0, 0x02 },
+ { ADCX140_MST_CFG1, 0x48 },
+ { ADCX140_ASI_STS, 0xff },
+ { ADCX140_CLK_SRC, 0x10 },
+ { ADCX140_PDMCLK_CFG, 0x40 },
+ { ADCX140_PDM_CFG, 0x00 },
+ { ADCX140_GPIO_CFG0, 0x22 },
+ { ADCX140_GPO_CFG0, 0x00 },
+ { ADCX140_GPO_CFG1, 0x00 },
+ { ADCX140_GPO_CFG2, 0x00 },
+ { ADCX140_GPO_CFG3, 0x00 },
+ { ADCX140_GPO_VAL, 0x00 },
+ { ADCX140_GPIO_MON, 0x00 },
+ { ADCX140_GPI_CFG0, 0x00 },
+ { ADCX140_GPI_CFG1, 0x00 },
+ { ADCX140_GPI_MON, 0x00 },
+ { ADCX140_INT_CFG, 0x00 },
+ { ADCX140_INT_MASK0, 0xff },
+ { ADCX140_INT_LTCH0, 0x00 },
+ { ADCX140_BIAS_CFG, 0x00 },
+ { ADCX140_CH1_CFG0, 0x00 },
+ { ADCX140_CH1_CFG1, 0x00 },
+ { ADCX140_CH1_CFG2, 0xc9 },
+ { ADCX140_CH1_CFG3, 0x80 },
+ { ADCX140_CH1_CFG4, 0x00 },
+ { ADCX140_CH2_CFG0, 0x00 },
+ { ADCX140_CH2_CFG1, 0x00 },
+ { ADCX140_CH2_CFG2, 0xc9 },
+ { ADCX140_CH2_CFG3, 0x80 },
+ { ADCX140_CH2_CFG4, 0x00 },
+ { ADCX140_CH3_CFG0, 0x00 },
+ { ADCX140_CH3_CFG1, 0x00 },
+ { ADCX140_CH3_CFG2, 0xc9 },
+ { ADCX140_CH3_CFG3, 0x80 },
+ { ADCX140_CH3_CFG4, 0x00 },
+ { ADCX140_CH4_CFG0, 0x00 },
+ { ADCX140_CH4_CFG1, 0x00 },
+ { ADCX140_CH4_CFG2, 0xc9 },
+ { ADCX140_CH4_CFG3, 0x80 },
+ { ADCX140_CH4_CFG4, 0x00 },
+ { ADCX140_CH5_CFG2, 0xc9 },
+ { ADCX140_CH5_CFG3, 0x80 },
+ { ADCX140_CH5_CFG4, 0x00 },
+ { ADCX140_CH6_CFG2, 0xc9 },
+ { ADCX140_CH6_CFG3, 0x80 },
+ { ADCX140_CH6_CFG4, 0x00 },
+ { ADCX140_CH7_CFG2, 0xc9 },
+ { ADCX140_CH7_CFG3, 0x80 },
+ { ADCX140_CH7_CFG4, 0x00 },
+ { ADCX140_CH8_CFG2, 0xc9 },
+ { ADCX140_CH8_CFG3, 0x80 },
+ { ADCX140_CH8_CFG4, 0x00 },
+ { ADCX140_DSP_CFG0, 0x01 },
+ { ADCX140_DSP_CFG1, 0x40 },
+ { ADCX140_DRE_CFG0, 0x7b },
+ { ADCX140_AGC_CFG0, 0xe7 },
+ { ADCX140_IN_CH_EN, 0xf0 },
+ { ADCX140_ASI_OUT_CH_EN, 0x00 },
+ { ADCX140_PWR_CFG, 0x00 },
+ { ADCX140_DEV_STS0, 0x00 },
+ { ADCX140_DEV_STS1, 0x80 },
+};
+
+static const struct regmap_range_cfg adcx140_ranges[] = {
+ {
+ .range_min = 0,
+ .range_max = 12 * 128,
+ .selector_reg = ADCX140_PAGE_SELECT,
+ .selector_mask = 0xff,
+ .selector_shift = 0,
+ .window_start = 0,
+ .window_len = 128,
+ },
+};
+
+static bool adcx140_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case ADCX140_SW_RESET:
+ case ADCX140_DEV_STS0:
+ case ADCX140_DEV_STS1:
+ case ADCX140_ASI_STS:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config adcx140_i2c_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .reg_defaults = adcx140_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(adcx140_reg_defaults),
+ .cache_type = REGCACHE_FLAT,
+ .ranges = adcx140_ranges,
+ .num_ranges = ARRAY_SIZE(adcx140_ranges),
+ .max_register = 12 * 128,
+ .volatile_reg = adcx140_volatile,
+};
+
+/* Digital Volume control. From -100 to 27 dB in 0.5 dB steps */
+static DECLARE_TLV_DB_SCALE(dig_vol_tlv, -10050, 50, 0);
+
+/* ADC gain. From 0 to 42 dB in 1 dB steps */
+static DECLARE_TLV_DB_SCALE(adc_tlv, 0, 100, 0);
+
+/* DRE Level. From -12 dB to -66 dB in 1 dB steps */
+static DECLARE_TLV_DB_SCALE(dre_thresh_tlv, -6600, 100, 0);
+/* DRE Max Gain. From 2 dB to 26 dB in 2 dB steps */
+static DECLARE_TLV_DB_SCALE(dre_gain_tlv, 200, 200, 0);
+
+/* AGC Level. From -6 dB to -36 dB in 2 dB steps */
+static DECLARE_TLV_DB_SCALE(agc_thresh_tlv, -3600, 200, 0);
+/* AGC Max Gain. From 3 dB to 42 dB in 3 dB steps */
+static DECLARE_TLV_DB_SCALE(agc_gain_tlv, 300, 300, 0);
+
+static const char * const decimation_filter_text[] = {
+ "Linear Phase", "Low Latency", "Ultra-low Latency"
+};
+
+static SOC_ENUM_SINGLE_DECL(decimation_filter_enum, ADCX140_DSP_CFG0, 4,
+ decimation_filter_text);
+
+static const struct snd_kcontrol_new decimation_filter_controls[] = {
+ SOC_DAPM_ENUM("Decimation Filter", decimation_filter_enum),
+};
+
+static const char * const pdmclk_text[] = {
+ "2.8224 MHz", "1.4112 MHz", "705.6 kHz", "5.6448 MHz"
+};
+
+static SOC_ENUM_SINGLE_DECL(pdmclk_select_enum, ADCX140_PDMCLK_CFG, 0,
+ pdmclk_text);
+
+static const struct snd_kcontrol_new pdmclk_div_controls[] = {
+ SOC_DAPM_ENUM("PDM Clk Divider Select", pdmclk_select_enum),
+};
+
+static const char * const resistor_text[] = {
+ "2.5 kOhm", "10 kOhm", "20 kOhm"
+};
+
+static SOC_ENUM_SINGLE_DECL(in1_resistor_enum, ADCX140_CH1_CFG0, 2,
+ resistor_text);
+static SOC_ENUM_SINGLE_DECL(in2_resistor_enum, ADCX140_CH2_CFG0, 2,
+ resistor_text);
+static SOC_ENUM_SINGLE_DECL(in3_resistor_enum, ADCX140_CH3_CFG0, 2,
+ resistor_text);
+static SOC_ENUM_SINGLE_DECL(in4_resistor_enum, ADCX140_CH4_CFG0, 2,
+ resistor_text);
+
+static const struct snd_kcontrol_new in1_resistor_controls[] = {
+ SOC_DAPM_ENUM("CH1 Resistor Select", in1_resistor_enum),
+};
+static const struct snd_kcontrol_new in2_resistor_controls[] = {
+ SOC_DAPM_ENUM("CH2 Resistor Select", in2_resistor_enum),
+};
+static const struct snd_kcontrol_new in3_resistor_controls[] = {
+ SOC_DAPM_ENUM("CH3 Resistor Select", in3_resistor_enum),
+};
+static const struct snd_kcontrol_new in4_resistor_controls[] = {
+ SOC_DAPM_ENUM("CH4 Resistor Select", in4_resistor_enum),
+};
+
+/* Analog/Digital Selection */
+static const char * const adcx140_mic_sel_text[] = {"Analog", "Line In", "Digital"};
+static const char * const adcx140_analog_sel_text[] = {"Analog", "Line In"};
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic1p_enum,
+ ADCX140_CH1_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic1p_control =
+SOC_DAPM_ENUM("MIC1P MUX", adcx140_mic1p_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic1_analog_enum,
+ ADCX140_CH1_CFG0, 7,
+ adcx140_analog_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic1_analog_control =
+SOC_DAPM_ENUM("MIC1 Analog MUX", adcx140_mic1_analog_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic1m_enum,
+ ADCX140_CH1_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic1m_control =
+SOC_DAPM_ENUM("MIC1M MUX", adcx140_mic1m_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic2p_enum,
+ ADCX140_CH2_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic2p_control =
+SOC_DAPM_ENUM("MIC2P MUX", adcx140_mic2p_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic2_analog_enum,
+ ADCX140_CH2_CFG0, 7,
+ adcx140_analog_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic2_analog_control =
+SOC_DAPM_ENUM("MIC2 Analog MUX", adcx140_mic2_analog_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic2m_enum,
+ ADCX140_CH2_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic2m_control =
+SOC_DAPM_ENUM("MIC2M MUX", adcx140_mic2m_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic3p_enum,
+ ADCX140_CH3_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic3p_control =
+SOC_DAPM_ENUM("MIC3P MUX", adcx140_mic3p_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic3_analog_enum,
+ ADCX140_CH3_CFG0, 7,
+ adcx140_analog_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic3_analog_control =
+SOC_DAPM_ENUM("MIC3 Analog MUX", adcx140_mic3_analog_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic3m_enum,
+ ADCX140_CH3_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic3m_control =
+SOC_DAPM_ENUM("MIC3M MUX", adcx140_mic3m_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic4p_enum,
+ ADCX140_CH4_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic4p_control =
+SOC_DAPM_ENUM("MIC4P MUX", adcx140_mic4p_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic4_analog_enum,
+ ADCX140_CH4_CFG0, 7,
+ adcx140_analog_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic4_analog_control =
+SOC_DAPM_ENUM("MIC4 Analog MUX", adcx140_mic4_analog_enum);
+
+static SOC_ENUM_SINGLE_DECL(adcx140_mic4m_enum,
+ ADCX140_CH4_CFG0, 5,
+ adcx140_mic_sel_text);
+
+static const struct snd_kcontrol_new adcx140_dapm_mic4m_control =
+SOC_DAPM_ENUM("MIC4M MUX", adcx140_mic4m_enum);
+
+static const struct snd_kcontrol_new adcx140_dapm_ch1_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 7, 1, 0);
+static const struct snd_kcontrol_new adcx140_dapm_ch2_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 6, 1, 0);
+static const struct snd_kcontrol_new adcx140_dapm_ch3_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 5, 1, 0);
+static const struct snd_kcontrol_new adcx140_dapm_ch4_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 4, 1, 0);
+static const struct snd_kcontrol_new adcx140_dapm_ch5_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 3, 1, 0);
+static const struct snd_kcontrol_new adcx140_dapm_ch6_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 2, 1, 0);
+static const struct snd_kcontrol_new adcx140_dapm_ch7_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 1, 1, 0);
+static const struct snd_kcontrol_new adcx140_dapm_ch8_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_ASI_OUT_CH_EN, 0, 1, 0);
+
+static const struct snd_kcontrol_new adcx140_dapm_ch1_dre_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_CH1_CFG0, 0, 1, 0);
+static const struct snd_kcontrol_new adcx140_dapm_ch2_dre_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_CH2_CFG0, 0, 1, 0);
+static const struct snd_kcontrol_new adcx140_dapm_ch3_dre_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_CH3_CFG0, 0, 1, 0);
+static const struct snd_kcontrol_new adcx140_dapm_ch4_dre_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_CH4_CFG0, 0, 1, 0);
+
+static const struct snd_kcontrol_new adcx140_dapm_dre_en_switch =
+ SOC_DAPM_SINGLE("Switch", ADCX140_DSP_CFG1, 3, 1, 0);
+
+/* Output Mixer */
+static const struct snd_kcontrol_new adcx140_output_mixer_controls[] = {
+ SOC_DAPM_SINGLE("Digital CH1 Switch", 0, 0, 0, 0),
+ SOC_DAPM_SINGLE("Digital CH2 Switch", 0, 0, 0, 0),
+ SOC_DAPM_SINGLE("Digital CH3 Switch", 0, 0, 0, 0),
+ SOC_DAPM_SINGLE("Digital CH4 Switch", 0, 0, 0, 0),
+};
+
+static const struct snd_soc_dapm_widget adcx140_dapm_widgets[] = {
+ /* Analog Differential Inputs */
+ SND_SOC_DAPM_INPUT("MIC1P"),
+ SND_SOC_DAPM_INPUT("MIC1M"),
+ SND_SOC_DAPM_INPUT("MIC2P"),
+ SND_SOC_DAPM_INPUT("MIC2M"),
+ SND_SOC_DAPM_INPUT("MIC3P"),
+ SND_SOC_DAPM_INPUT("MIC3M"),
+ SND_SOC_DAPM_INPUT("MIC4P"),
+ SND_SOC_DAPM_INPUT("MIC4M"),
+
+ SND_SOC_DAPM_OUTPUT("CH1_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH2_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH3_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH4_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH5_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH6_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH7_OUT"),
+ SND_SOC_DAPM_OUTPUT("CH8_OUT"),
+
+ SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
+ &adcx140_output_mixer_controls[0],
+ ARRAY_SIZE(adcx140_output_mixer_controls)),
+
+ /* Input Selection to MIC_PGA */
+ SND_SOC_DAPM_MUX("MIC1P Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic1p_control),
+ SND_SOC_DAPM_MUX("MIC2P Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic2p_control),
+ SND_SOC_DAPM_MUX("MIC3P Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic3p_control),
+ SND_SOC_DAPM_MUX("MIC4P Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic4p_control),
+
+ /* Input Selection to MIC_PGA */
+ SND_SOC_DAPM_MUX("MIC1 Analog Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic1_analog_control),
+ SND_SOC_DAPM_MUX("MIC2 Analog Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic2_analog_control),
+ SND_SOC_DAPM_MUX("MIC3 Analog Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic3_analog_control),
+ SND_SOC_DAPM_MUX("MIC4 Analog Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic4_analog_control),
+
+ SND_SOC_DAPM_MUX("MIC1M Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic1m_control),
+ SND_SOC_DAPM_MUX("MIC2M Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic2m_control),
+ SND_SOC_DAPM_MUX("MIC3M Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic3m_control),
+ SND_SOC_DAPM_MUX("MIC4M Input Mux", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_mic4m_control),
+
+ SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH1", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH2", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH3", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_PGA("MIC_GAIN_CTL_CH4", SND_SOC_NOPM, 0, 0, NULL, 0),
+
+ SND_SOC_DAPM_ADC("CH1_ADC", "CH1 Capture", ADCX140_IN_CH_EN, 7, 0),
+ SND_SOC_DAPM_ADC("CH2_ADC", "CH2 Capture", ADCX140_IN_CH_EN, 6, 0),
+ SND_SOC_DAPM_ADC("CH3_ADC", "CH3 Capture", ADCX140_IN_CH_EN, 5, 0),
+ SND_SOC_DAPM_ADC("CH4_ADC", "CH4 Capture", ADCX140_IN_CH_EN, 4, 0),
+
+ SND_SOC_DAPM_ADC("CH1_DIG", "CH1 Capture", ADCX140_IN_CH_EN, 7, 0),
+ SND_SOC_DAPM_ADC("CH2_DIG", "CH2 Capture", ADCX140_IN_CH_EN, 6, 0),
+ SND_SOC_DAPM_ADC("CH3_DIG", "CH3 Capture", ADCX140_IN_CH_EN, 5, 0),
+ SND_SOC_DAPM_ADC("CH4_DIG", "CH4 Capture", ADCX140_IN_CH_EN, 4, 0),
+ SND_SOC_DAPM_ADC("CH5_DIG", "CH5 Capture", ADCX140_IN_CH_EN, 3, 0),
+ SND_SOC_DAPM_ADC("CH6_DIG", "CH6 Capture", ADCX140_IN_CH_EN, 2, 0),
+ SND_SOC_DAPM_ADC("CH7_DIG", "CH7 Capture", ADCX140_IN_CH_EN, 1, 0),
+ SND_SOC_DAPM_ADC("CH8_DIG", "CH8 Capture", ADCX140_IN_CH_EN, 0, 0),
+
+
+ SND_SOC_DAPM_SWITCH("CH1_ASI_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch1_en_switch),
+ SND_SOC_DAPM_SWITCH("CH2_ASI_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch2_en_switch),
+ SND_SOC_DAPM_SWITCH("CH3_ASI_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch3_en_switch),
+ SND_SOC_DAPM_SWITCH("CH4_ASI_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch4_en_switch),
+
+ SND_SOC_DAPM_SWITCH("CH5_ASI_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch5_en_switch),
+ SND_SOC_DAPM_SWITCH("CH6_ASI_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch6_en_switch),
+ SND_SOC_DAPM_SWITCH("CH7_ASI_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch7_en_switch),
+ SND_SOC_DAPM_SWITCH("CH8_ASI_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch8_en_switch),
+
+ SND_SOC_DAPM_SWITCH("DRE_ENABLE", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_dre_en_switch),
+
+ SND_SOC_DAPM_SWITCH("CH1_DRE_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch1_dre_en_switch),
+ SND_SOC_DAPM_SWITCH("CH2_DRE_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch2_dre_en_switch),
+ SND_SOC_DAPM_SWITCH("CH3_DRE_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch3_dre_en_switch),
+ SND_SOC_DAPM_SWITCH("CH4_DRE_EN", SND_SOC_NOPM, 0, 0,
+ &adcx140_dapm_ch4_dre_en_switch),
+
+ SND_SOC_DAPM_MUX("IN1 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
+ in1_resistor_controls),
+ SND_SOC_DAPM_MUX("IN2 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
+ in2_resistor_controls),
+ SND_SOC_DAPM_MUX("IN3 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
+ in3_resistor_controls),
+ SND_SOC_DAPM_MUX("IN4 Analog Mic Resistor", SND_SOC_NOPM, 0, 0,
+ in4_resistor_controls),
+
+ SND_SOC_DAPM_MUX("PDM Clk Div Select", SND_SOC_NOPM, 0, 0,
+ pdmclk_div_controls),
+
+ SND_SOC_DAPM_MUX("Decimation Filter", SND_SOC_NOPM, 0, 0,
+ decimation_filter_controls),
+};
+
+static const struct snd_soc_dapm_route adcx140_audio_map[] = {
+ /* Outputs */
+ {"CH1_OUT", NULL, "Output Mixer"},
+ {"CH2_OUT", NULL, "Output Mixer"},
+ {"CH3_OUT", NULL, "Output Mixer"},
+ {"CH4_OUT", NULL, "Output Mixer"},
+
+ {"CH1_ASI_EN", "Switch", "CH1_ADC"},
+ {"CH2_ASI_EN", "Switch", "CH2_ADC"},
+ {"CH3_ASI_EN", "Switch", "CH3_ADC"},
+ {"CH4_ASI_EN", "Switch", "CH4_ADC"},
+
+ {"CH1_ASI_EN", "Switch", "CH1_DIG"},
+ {"CH2_ASI_EN", "Switch", "CH2_DIG"},
+ {"CH3_ASI_EN", "Switch", "CH3_DIG"},
+ {"CH4_ASI_EN", "Switch", "CH4_DIG"},
+ {"CH5_ASI_EN", "Switch", "CH5_DIG"},
+ {"CH6_ASI_EN", "Switch", "CH6_DIG"},
+ {"CH7_ASI_EN", "Switch", "CH7_DIG"},
+ {"CH8_ASI_EN", "Switch", "CH8_DIG"},
+
+ {"CH5_ASI_EN", "Switch", "CH5_OUT"},
+ {"CH6_ASI_EN", "Switch", "CH6_OUT"},
+ {"CH7_ASI_EN", "Switch", "CH7_OUT"},
+ {"CH8_ASI_EN", "Switch", "CH8_OUT"},
+
+ {"Decimation Filter", "Linear Phase", "DRE_ENABLE"},
+ {"Decimation Filter", "Low Latency", "DRE_ENABLE"},
+ {"Decimation Filter", "Ultra-low Latency", "DRE_ENABLE"},
+
+ {"DRE_ENABLE", "Switch", "CH1_DRE_EN"},
+ {"DRE_ENABLE", "Switch", "CH2_DRE_EN"},
+ {"DRE_ENABLE", "Switch", "CH3_DRE_EN"},
+ {"DRE_ENABLE", "Switch", "CH4_DRE_EN"},
+
+ {"CH1_DRE_EN", "Switch", "CH1_ADC"},
+ {"CH2_DRE_EN", "Switch", "CH2_ADC"},
+ {"CH3_DRE_EN", "Switch", "CH3_ADC"},
+ {"CH4_DRE_EN", "Switch", "CH4_ADC"},
+
+ /* Mic input */
+ {"CH1_ADC", NULL, "MIC_GAIN_CTL_CH1"},
+ {"CH2_ADC", NULL, "MIC_GAIN_CTL_CH2"},
+ {"CH3_ADC", NULL, "MIC_GAIN_CTL_CH3"},
+ {"CH4_ADC", NULL, "MIC_GAIN_CTL_CH4"},
+
+ {"MIC_GAIN_CTL_CH1", NULL, "IN1 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH1", NULL, "IN1 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH2", NULL, "IN2 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH2", NULL, "IN2 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH3", NULL, "IN3 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH3", NULL, "IN3 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH4", NULL, "IN4 Analog Mic Resistor"},
+ {"MIC_GAIN_CTL_CH4", NULL, "IN4 Analog Mic Resistor"},
+
+ {"IN1 Analog Mic Resistor", "2.5 kOhm", "MIC1P Input Mux"},
+ {"IN1 Analog Mic Resistor", "10 kOhm", "MIC1P Input Mux"},
+ {"IN1 Analog Mic Resistor", "20 kOhm", "MIC1P Input Mux"},
+
+ {"IN1 Analog Mic Resistor", "2.5 kOhm", "MIC1M Input Mux"},
+ {"IN1 Analog Mic Resistor", "10 kOhm", "MIC1M Input Mux"},
+ {"IN1 Analog Mic Resistor", "20 kOhm", "MIC1M Input Mux"},
+
+ {"IN2 Analog Mic Resistor", "2.5 kOhm", "MIC2P Input Mux"},
+ {"IN2 Analog Mic Resistor", "10 kOhm", "MIC2P Input Mux"},
+ {"IN2 Analog Mic Resistor", "20 kOhm", "MIC2P Input Mux"},
+
+ {"IN2 Analog Mic Resistor", "2.5 kOhm", "MIC2M Input Mux"},
+ {"IN2 Analog Mic Resistor", "10 kOhm", "MIC2M Input Mux"},
+ {"IN2 Analog Mic Resistor", "20 kOhm", "MIC2M Input Mux"},
+
+ {"IN3 Analog Mic Resistor", "2.5 kOhm", "MIC3P Input Mux"},
+ {"IN3 Analog Mic Resistor", "10 kOhm", "MIC3P Input Mux"},
+ {"IN3 Analog Mic Resistor", "20 kOhm", "MIC3P Input Mux"},
+
+ {"IN3 Analog Mic Resistor", "2.5 kOhm", "MIC3M Input Mux"},
+ {"IN3 Analog Mic Resistor", "10 kOhm", "MIC3M Input Mux"},
+ {"IN3 Analog Mic Resistor", "20 kOhm", "MIC3M Input Mux"},
+
+ {"IN4 Analog Mic Resistor", "2.5 kOhm", "MIC4P Input Mux"},
+ {"IN4 Analog Mic Resistor", "10 kOhm", "MIC4P Input Mux"},
+ {"IN4 Analog Mic Resistor", "20 kOhm", "MIC4P Input Mux"},
+
+ {"IN4 Analog Mic Resistor", "2.5 kOhm", "MIC4M Input Mux"},
+ {"IN4 Analog Mic Resistor", "10 kOhm", "MIC4M Input Mux"},
+ {"IN4 Analog Mic Resistor", "20 kOhm", "MIC4M Input Mux"},
+
+ {"PDM Clk Div Select", "2.8224 MHz", "MIC1P Input Mux"},
+ {"PDM Clk Div Select", "1.4112 MHz", "MIC1P Input Mux"},
+ {"PDM Clk Div Select", "705.6 kHz", "MIC1P Input Mux"},
+ {"PDM Clk Div Select", "5.6448 MHz", "MIC1P Input Mux"},
+
+ {"MIC1P Input Mux", NULL, "CH1_DIG"},
+ {"MIC1M Input Mux", NULL, "CH2_DIG"},
+ {"MIC2P Input Mux", NULL, "CH3_DIG"},
+ {"MIC2M Input Mux", NULL, "CH4_DIG"},
+ {"MIC3P Input Mux", NULL, "CH5_DIG"},
+ {"MIC3M Input Mux", NULL, "CH6_DIG"},
+ {"MIC4P Input Mux", NULL, "CH7_DIG"},
+ {"MIC4M Input Mux", NULL, "CH8_DIG"},
+
+ {"MIC1 Analog Mux", "Line In", "MIC1P"},
+ {"MIC2 Analog Mux", "Line In", "MIC2P"},
+ {"MIC3 Analog Mux", "Line In", "MIC3P"},
+ {"MIC4 Analog Mux", "Line In", "MIC4P"},
+
+ {"MIC1P Input Mux", "Analog", "MIC1P"},
+ {"MIC1M Input Mux", "Analog", "MIC1M"},
+ {"MIC2P Input Mux", "Analog", "MIC2P"},
+ {"MIC2M Input Mux", "Analog", "MIC2M"},
+ {"MIC3P Input Mux", "Analog", "MIC3P"},
+ {"MIC3M Input Mux", "Analog", "MIC3M"},
+ {"MIC4P Input Mux", "Analog", "MIC4P"},
+ {"MIC4M Input Mux", "Analog", "MIC4M"},
+
+ {"MIC1P Input Mux", "Digital", "MIC1P"},
+ {"MIC1M Input Mux", "Digital", "MIC1M"},
+ {"MIC2P Input Mux", "Digital", "MIC2P"},
+ {"MIC2M Input Mux", "Digital", "MIC2M"},
+ {"MIC3P Input Mux", "Digital", "MIC3P"},
+ {"MIC3M Input Mux", "Digital", "MIC3M"},
+ {"MIC4P Input Mux", "Digital", "MIC4P"},
+ {"MIC4M Input Mux", "Digital", "MIC4M"},
+};
+
+static const char * const phase_calib_text[] = {
+ "Disable",
+ "Enable"
+};
+
+static const struct soc_enum phase_calib_enum[] = {
+ SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(phase_calib_text), phase_calib_text),
+};
+
+static int adcx140_phase_calib_get(struct snd_kcontrol *pKcontrol,
+ struct snd_ctl_elem_value *pValue)
+{
+ struct snd_soc_component *codec =
+ snd_soc_kcontrol_component(pKcontrol);
+ struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(codec);
+
+ pValue->value.integer.value[0] = adcx140->phase_calib_on;
+
+ return 0;
+}
+
+static int adcx140_phase_calib_put(struct snd_kcontrol *pKcontrol,
+ struct snd_ctl_elem_value *pValue)
+{
+ struct snd_soc_component *codec
+ = snd_soc_kcontrol_component(pKcontrol);
+ struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(codec);
+
+ adcx140->phase_calib_on = pValue->value.integer.value[0];
+
+ return 0;
+}
+
+static const struct snd_kcontrol_new adcx140_snd_controls[] = {
+ SOC_SINGLE_TLV("Analog CH1 Mic Gain Volume", ADCX140_CH1_CFG1, 2, 42, 0,
+ adc_tlv),
+ SOC_SINGLE_TLV("Analog CH2 Mic Gain Volume", ADCX140_CH2_CFG1, 2, 42, 0,
+ adc_tlv),
+ SOC_SINGLE_TLV("Analog CH3 Mic Gain Volume", ADCX140_CH3_CFG1, 2, 42, 0,
+ adc_tlv),
+ SOC_SINGLE_TLV("Analog CH4 Mic Gain Volume", ADCX140_CH4_CFG1, 2, 42, 0,
+ adc_tlv),
+
+ SOC_SINGLE_TLV("DRE Threshold", ADCX140_DRE_CFG0, 4, 9, 0,
+ dre_thresh_tlv),
+ SOC_SINGLE_TLV("DRE Max Gain", ADCX140_DRE_CFG0, 0, 12, 0,
+ dre_gain_tlv),
+
+ SOC_SINGLE_TLV("AGC Threshold", ADCX140_AGC_CFG0, 4, 15, 0,
+ agc_thresh_tlv),
+ SOC_SINGLE_TLV("AGC Max Gain", ADCX140_AGC_CFG0, 0, 13, 0,
+ agc_gain_tlv),
+
+ SOC_SINGLE_TLV("Digital CH1 Out Volume", ADCX140_CH1_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH2 Out Volume", ADCX140_CH2_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH3 Out Volume", ADCX140_CH3_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH4 Out Volume", ADCX140_CH4_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH5 Out Volume", ADCX140_CH5_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH6 Out Volume", ADCX140_CH6_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH7 Out Volume", ADCX140_CH7_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_SINGLE_TLV("Digital CH8 Out Volume", ADCX140_CH8_CFG2,
+ 0, 0xff, 0, dig_vol_tlv),
+ SOC_ENUM_EXT("Phase calib", phase_calib_enum[0],
+ adcx140_phase_calib_get, adcx140_phase_calib_put),
+};
+
+static int adcx140_reset(struct adcx140_priv *adcx140)
+{
+ int ret = 0;
+
+ if (adcx140->gpio_reset) {
+ gpiod_direction_output(adcx140->gpio_reset, 0);
+ /* 8.4.1: wait for hw shutdown (25ms) + >= 1ms */
+ usleep_range(30000, 100000);
+ gpiod_direction_output(adcx140->gpio_reset, 1);
+ } else {
+ ret = regmap_write(adcx140->regmap, ADCX140_SW_RESET,
+ ADCX140_RESET);
+ }
+
+ /* 8.4.2: wait >= 10 ms after entering sleep mode. */
+ usleep_range(10000, 100000);
+
+ return ret;
+}
+
+static void adcx140_pwr_ctrl(struct adcx140_priv *adcx140,
+ bool power_state)
+{
+ int pwr_ctrl = 0, ret = 0;
+ struct snd_soc_component *component = adcx140->component;
+
+ if (power_state)
+ pwr_ctrl = ADCX140_PWR_CFG_ADC_PDZ | ADCX140_PWR_CFG_PLL_PDZ;
+
+ if (adcx140->micbias_vg && power_state)
+ pwr_ctrl |= ADCX140_PWR_CFG_BIAS_PDZ;
+
+ ret = regmap_write(adcx140->regmap, ADCX140_PHASE_CALIB,
+ adcx140->phase_calib_on ? 0x00 : 0x40);
+ if (ret)
+ dev_err(component->dev, "%s: register write error %d\n",
+ __func__, ret);
+
+ ret = regmap_update_bits(adcx140->regmap, ADCX140_PWR_CFG,
+ ADCX140_PWR_CTRL_MSK, pwr_ctrl);
+ if (ret)
+ dev_err(component->dev, "%s: register bits update error %d\n",
+ __func__, ret);
+}
+
+static int adcx140_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
+ u8 data = 0;
+
+ switch (params_width(params)) {
+ case 16:
+ data = ADCX140_16_BIT_WORD;
+ break;
+ case 20:
+ data = ADCX140_20_BIT_WORD;
+ break;
+ case 24:
+ data = ADCX140_24_BIT_WORD;
+ break;
+ case 32:
+ data = ADCX140_32_BIT_WORD;
+ break;
+ default:
+ dev_err(component->dev, "%s: Unsupported width %d\n",
+ __func__, params_width(params));
+ return -EINVAL;
+ }
+
+ adcx140_pwr_ctrl(adcx140, false);
+
+ snd_soc_component_update_bits(component, ADCX140_ASI_CFG0,
+ ADCX140_WORD_LEN_MSK, data);
+
+ adcx140_pwr_ctrl(adcx140, true);
+
+ return 0;
+}
+
+static int adcx140_set_dai_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
+ u8 iface_reg1 = 0;
+ u8 iface_reg2 = 0;
+ int offset = 0;
+ bool inverted_bclk = false;
+
+ /* set master/slave audio interface */
+ switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+ case SND_SOC_DAIFMT_CBP_CFP:
+ iface_reg2 |= ADCX140_BCLK_FSYNC_MASTER;
+ break;
+ case SND_SOC_DAIFMT_CBC_CFC:
+ break;
+ default:
+ dev_err(component->dev, "Invalid DAI clock provider\n");
+ return -EINVAL;
+ }
+
+ /* interface format */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ iface_reg1 |= ADCX140_I2S_MODE_BIT;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ iface_reg1 |= ADCX140_LEFT_JUST_BIT;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ offset = 1;
+ inverted_bclk = true;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ inverted_bclk = true;
+ break;
+ default:
+ dev_err(component->dev, "Invalid DAI interface format\n");
+ return -EINVAL;
+ }
+
+ /* signal polarity */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_IB_NF:
+ case SND_SOC_DAIFMT_IB_IF:
+ inverted_bclk = !inverted_bclk;
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ iface_reg1 |= ADCX140_FSYNCINV_BIT;
+ break;
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ default:
+ dev_err(component->dev, "Invalid DAI clock signal polarity\n");
+ return -EINVAL;
+ }
+
+ if (inverted_bclk)
+ iface_reg1 |= ADCX140_BCLKINV_BIT;
+
+ adcx140->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
+
+ adcx140_pwr_ctrl(adcx140, false);
+
+ snd_soc_component_update_bits(component, ADCX140_ASI_CFG0,
+ ADCX140_FSYNCINV_BIT |
+ ADCX140_BCLKINV_BIT |
+ ADCX140_ASI_FORMAT_MSK,
+ iface_reg1);
+ snd_soc_component_update_bits(component, ADCX140_MST_CFG0,
+ ADCX140_BCLK_FSYNC_MASTER, iface_reg2);
+
+ /* Configure data offset */
+ snd_soc_component_update_bits(component, ADCX140_ASI_CFG1,
+ ADCX140_TX_OFFSET_MASK, offset);
+
+ adcx140_pwr_ctrl(adcx140, true);
+
+ return 0;
+}
+
+static int adcx140_set_dai_tdm_slot(struct snd_soc_dai *codec_dai,
+ unsigned int tx_mask, unsigned int rx_mask,
+ int slots, int slot_width)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
+
+ /*
+ * The chip itself supports arbitrary masks, but the driver currently
+ * only supports adjacent slots beginning at the first slot.
+ */
+ if (tx_mask != GENMASK(__fls(tx_mask), 0)) {
+ dev_err(component->dev,
+ "Only lower adjacent slots are supported\n");
+ return -EINVAL;
+ }
+
+ switch (slot_width) {
+ case 16:
+ case 20:
+ case 24:
+ case 32:
+ break;
+ default:
+ dev_err(component->dev, "Unsupported slot width %d\n",
+ slot_width);
+ return -EINVAL;
+ }
+
+ adcx140->slot_width = slot_width;
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops adcx140_dai_ops = {
+ .hw_params = adcx140_hw_params,
+ .set_fmt = adcx140_set_dai_fmt,
+ .set_tdm_slot = adcx140_set_dai_tdm_slot,
+};
+
+static int adcx140_configure_gpo(struct adcx140_priv *adcx140)
+{
+ u32 gpo_outputs[ADCX140_NUM_GPOS];
+ u32 gpo_output_val = 0;
+ int ret;
+ int i;
+
+ for (i = 0; i < ADCX140_NUM_GPOS; i++) {
+ ret = device_property_read_u32_array(adcx140->dev,
+ gpo_config_names[i],
+ gpo_outputs,
+ ADCX140_NUM_GPO_CFGS);
+ if (ret)
+ continue;
+
+ if (gpo_outputs[0] > ADCX140_GPO_CFG_MAX) {
+ dev_err(adcx140->dev, "GPO%d config out of range\n",
+ i + 1);
+ return -EINVAL;
+ }
+
+ if (gpo_outputs[1] > ADCX140_GPO_DRV_MAX) {
+ dev_err(adcx140->dev, "GPO%d drive out of range\n",
+ i + 1);
+ return -EINVAL;
+ }
+
+ gpo_output_val = gpo_outputs[0] << ADCX140_GPO_SHIFT |
+ gpo_outputs[1];
+ ret = regmap_write(adcx140->regmap, ADCX140_GPO_CFG0 + i,
+ gpo_output_val);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+
+}
+
+static int adcx140_configure_gpio(struct adcx140_priv *adcx140)
+{
+ int gpio_count = 0;
+ u32 gpio_outputs[ADCX140_NUM_GPIO_CFGS];
+ u32 gpio_output_val = 0;
+ int ret;
+
+ gpio_count = device_property_count_u32(adcx140->dev,
+ "ti,gpio-config");
+ if (gpio_count == 0)
+ return 0;
+
+ if (gpio_count != ADCX140_NUM_GPIO_CFGS)
+ return -EINVAL;
+
+ ret = device_property_read_u32_array(adcx140->dev, "ti,gpio-config",
+ gpio_outputs, gpio_count);
+ if (ret)
+ return ret;
+
+ if (gpio_outputs[0] > ADCX140_GPIO_CFG_MAX) {
+ dev_err(adcx140->dev, "GPIO config out of range\n");
+ return -EINVAL;
+ }
+
+ if (gpio_outputs[1] > ADCX140_GPIO_DRV_MAX) {
+ dev_err(adcx140->dev, "GPIO drive out of range\n");
+ return -EINVAL;
+ }
+
+ gpio_output_val = gpio_outputs[0] << ADCX140_GPIO_SHIFT
+ | gpio_outputs[1];
+
+ return regmap_write(adcx140->regmap, ADCX140_GPIO_CFG0,
+ gpio_output_val);
+}
+
+static int adcx140_codec_probe(struct snd_soc_component *component)
+{
+ struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
+ int sleep_cfg_val = ADCX140_WAKE_DEV;
+ u32 bias_source;
+ u32 vref_source;
+ u8 bias_cfg;
+ int pdm_count;
+ u32 pdm_edges[ADCX140_NUM_PDM_EDGES];
+ u32 pdm_edge_val = 0;
+ int gpi_count;
+ u32 gpi_inputs[ADCX140_NUM_GPI_PINS];
+ u32 gpi_input_val = 0;
+ int i;
+ int ret;
+ bool tx_high_z;
+
+ ret = device_property_read_u32(adcx140->dev, "ti,mic-bias-source",
+ &bias_source);
+ if (ret || bias_source > ADCX140_MIC_BIAS_VAL_AVDD) {
+ bias_source = ADCX140_MIC_BIAS_VAL_VREF;
+ adcx140->micbias_vg = false;
+ } else {
+ adcx140->micbias_vg = true;
+ }
+
+ ret = device_property_read_u32(adcx140->dev, "ti,vref-source",
+ &vref_source);
+ if (ret)
+ vref_source = ADCX140_MIC_BIAS_VREF_275V;
+
+ if (vref_source > ADCX140_MIC_BIAS_VREF_1375V) {
+ dev_err(adcx140->dev, "Mic Bias source value is invalid\n");
+ return -EINVAL;
+ }
+
+ bias_cfg = bias_source << ADCX140_MIC_BIAS_SHIFT | vref_source;
+
+ ret = adcx140_reset(adcx140);
+ if (ret)
+ goto out;
+
+ if (adcx140->supply_areg == NULL)
+ sleep_cfg_val |= ADCX140_AREG_INTERNAL;
+
+ ret = regmap_write(adcx140->regmap, ADCX140_SLEEP_CFG, sleep_cfg_val);
+ if (ret) {
+ dev_err(adcx140->dev, "setting sleep config failed %d\n", ret);
+ goto out;
+ }
+
+ /* 8.4.3: Wait >= 1ms after entering active mode. */
+ usleep_range(1000, 100000);
+
+ pdm_count = device_property_count_u32(adcx140->dev,
+ "ti,pdm-edge-select");
+ if (pdm_count <= ADCX140_NUM_PDM_EDGES && pdm_count > 0) {
+ ret = device_property_read_u32_array(adcx140->dev,
+ "ti,pdm-edge-select",
+ pdm_edges, pdm_count);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < pdm_count; i++)
+ pdm_edge_val |=
+ pdm_edges[i] << (ADCX140_PDM_EDGE_SHIFT - i);
+
+ ret = regmap_write(adcx140->regmap, ADCX140_PDM_CFG,
+ pdm_edge_val);
+ if (ret)
+ return ret;
+ }
+
+ gpi_count = device_property_count_u32(adcx140->dev, "ti,gpi-config");
+ if (gpi_count <= ADCX140_NUM_GPI_PINS && gpi_count > 0) {
+ ret = device_property_read_u32_array(adcx140->dev,
+ "ti,gpi-config",
+ gpi_inputs, gpi_count);
+ if (ret)
+ return ret;
+
+ gpi_input_val = gpi_inputs[ADCX140_GPI1_INDEX]
+ << ADCX140_GPI_SHIFT | gpi_inputs[ADCX140_GPI2_INDEX];
+
+ ret = regmap_write(adcx140->regmap, ADCX140_GPI_CFG0,
+ gpi_input_val);
+ if (ret)
+ return ret;
+
+ gpi_input_val = gpi_inputs[ADCX140_GPI3_INDEX]
+ << ADCX140_GPI_SHIFT | gpi_inputs[ADCX140_GPI4_INDEX];
+
+ ret = regmap_write(adcx140->regmap, ADCX140_GPI_CFG1,
+ gpi_input_val);
+ if (ret)
+ return ret;
+ }
+
+ ret = adcx140_configure_gpio(adcx140);
+ if (ret)
+ return ret;
+
+ ret = adcx140_configure_gpo(adcx140);
+ if (ret)
+ goto out;
+
+ ret = regmap_update_bits(adcx140->regmap, ADCX140_BIAS_CFG,
+ ADCX140_MIC_BIAS_VAL_MSK |
+ ADCX140_MIC_BIAS_VREF_MSK, bias_cfg);
+ if (ret)
+ dev_err(adcx140->dev, "setting MIC bias failed %d\n", ret);
+
+ tx_high_z = device_property_read_bool(adcx140->dev, "ti,asi-tx-drive");
+ if (tx_high_z) {
+ ret = regmap_update_bits(adcx140->regmap, ADCX140_ASI_CFG0,
+ ADCX140_TX_FILL, ADCX140_TX_FILL);
+ if (ret) {
+ dev_err(adcx140->dev,
+ "Setting Tx drive failed %d\n", ret);
+ goto out;
+ }
+ }
+
+ adcx140_pwr_ctrl(adcx140, true);
+out:
+ return ret;
+}
+
+static int adcx140_set_bias_level(
+ struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
+{
+ struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(component);
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ case SND_SOC_BIAS_PREPARE:
+ case SND_SOC_BIAS_STANDBY:
+ adcx140_pwr_ctrl(adcx140, true);
+ break;
+ case SND_SOC_BIAS_OFF:
+ adcx140_pwr_ctrl(adcx140, false);
+ break;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_component_driver soc_codec_driver_adcx140 = {
+ .probe = adcx140_codec_probe,
+ .set_bias_level = adcx140_set_bias_level,
+ .controls = adcx140_snd_controls,
+ .num_controls = ARRAY_SIZE(adcx140_snd_controls),
+ .dapm_widgets = adcx140_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(adcx140_dapm_widgets),
+ .dapm_routes = adcx140_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(adcx140_audio_map),
+ .suspend_bias_off = 1,
+ .idle_bias_on = 0,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+};
+
+static struct snd_soc_dai_driver adcx140_dai_driver[] = {
+ {
+ .name = "tlv320adcx140-codec",
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 2,
+ .channels_max = ADCX140_MAX_CHANNELS,
+ .rates = ADCX140_RATES,
+ .formats = ADCX140_FORMATS,
+ },
+ .ops = &adcx140_dai_ops,
+ .symmetric_rate = 1,
+ }
+};
+
+#ifdef CONFIG_OF
+static const struct of_device_id tlv320adcx140_of_match[] = {
+ { .compatible = "ti,tlv320adc3140" },
+ { .compatible = "ti,tlv320adc5140" },
+ { .compatible = "ti,tlv320adc6140" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, tlv320adcx140_of_match);
+#endif
+
+static void adcx140_disable_regulator(void *arg)
+{
+ struct adcx140_priv *adcx140 = arg;
+
+ regulator_disable(adcx140->supply_areg);
+}
+
+static int adcx140_i2c_probe(struct i2c_client *i2c)
+{
+ struct adcx140_priv *adcx140;
+ int ret;
+
+ adcx140 = devm_kzalloc(&i2c->dev, sizeof(*adcx140), GFP_KERNEL);
+ if (!adcx140)
+ return -ENOMEM;
+
+ adcx140->dev = &i2c->dev;
+
+ adcx140->gpio_reset = devm_gpiod_get_optional(adcx140->dev,
+ "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(adcx140->gpio_reset))
+ dev_info(&i2c->dev, "Reset GPIO not defined\n");
+
+ adcx140->supply_areg = devm_regulator_get_optional(adcx140->dev,
+ "areg");
+ if (IS_ERR(adcx140->supply_areg)) {
+ if (PTR_ERR(adcx140->supply_areg) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
+ adcx140->supply_areg = NULL;
+ } else {
+ ret = regulator_enable(adcx140->supply_areg);
+ if (ret) {
+ dev_err(adcx140->dev, "Failed to enable areg\n");
+ return ret;
+ }
+
+ ret = devm_add_action_or_reset(&i2c->dev,
+ adcx140_disable_regulator, adcx140);
+ if (ret)
+ return ret;
+ }
+
+ adcx140->regmap = devm_regmap_init_i2c(i2c, &adcx140_i2c_regmap);
+ if (IS_ERR(adcx140->regmap)) {
+ ret = PTR_ERR(adcx140->regmap);
+ dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
+ i2c_set_clientdata(i2c, adcx140);
+
+ return devm_snd_soc_register_component(&i2c->dev,
+ &soc_codec_driver_adcx140,
+ adcx140_dai_driver, 1);
+}
+
+static const struct i2c_device_id adcx140_i2c_id[] = {
+ { "tlv320adc3140", 0 },
+ { "tlv320adc5140", 1 },
+ { "tlv320adc6140", 2 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, adcx140_i2c_id);
+
+static struct i2c_driver adcx140_i2c_driver = {
+ .driver = {
+ .name = "tlv320adcx140-codec",
+ .of_match_table = of_match_ptr(tlv320adcx140_of_match),
+ },
+ .probe_new = adcx140_i2c_probe,
+ .id_table = adcx140_i2c_id,
+};
+module_i2c_driver(adcx140_i2c_driver);
+
+MODULE_AUTHOR("Dan Murphy <[email protected]>");
+MODULE_DESCRIPTION("ASoC TLV320ADCX140 CODEC Driver");
+MODULE_LICENSE("GPL");
diff --git a/tlv320adcx140.h b/tlv320adcx140.h
new file mode 100644
index 0000000..ca05a94
--- /dev/null
+++ b/tlv320adcx140.h
@@ -0,0 +1,157 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// TLV320ADCX104 Sound driver
+// Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com/
+
+#ifndef _TLV320ADCX140_H
+#define _TLV320ADCX140_H
+
+#define ADCX140_RATES (SNDRV_PCM_RATE_44100 | \
+ SNDRV_PCM_RATE_48000)
+
+#define ADCX140_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S20_3LE | \
+ SNDRV_PCM_FMTBIT_S24_3LE | \
+ SNDRV_PCM_FMTBIT_S24_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE)
+
+#define ADCX140_PAGE_SELECT 0x00
+#define ADCX140_SW_RESET 0x01
+#define ADCX140_SLEEP_CFG 0x02
+#define ADCX140_SHDN_CFG 0x05
+#define ADCX140_ASI_CFG0 0x07
+#define ADCX140_ASI_CFG1 0x08
+#define ADCX140_ASI_CFG2 0x09
+#define ADCX140_ASI_CH1 0x0b
+#define ADCX140_ASI_CH2 0x0c
+#define ADCX140_ASI_CH3 0x0d
+#define ADCX140_ASI_CH4 0x0e
+#define ADCX140_ASI_CH5 0x0f
+#define ADCX140_ASI_CH6 0x10
+#define ADCX140_ASI_CH7 0x11
+#define ADCX140_ASI_CH8 0x12
+#define ADCX140_MST_CFG0 0x13
+#define ADCX140_MST_CFG1 0x14
+#define ADCX140_ASI_STS 0x15
+#define ADCX140_CLK_SRC 0x16
+#define ADCX140_PDMCLK_CFG 0x1f
+#define ADCX140_PDM_CFG 0x20
+#define ADCX140_GPIO_CFG0 0x21
+#define ADCX140_GPO_CFG0 0x22
+#define ADCX140_GPO_CFG1 0x23
+#define ADCX140_GPO_CFG2 0x24
+#define ADCX140_GPO_CFG3 0x25
+#define ADCX140_GPO_VAL 0x29
+#define ADCX140_GPIO_MON 0x2a
+#define ADCX140_GPI_CFG0 0x2b
+#define ADCX140_GPI_CFG1 0x2c
+#define ADCX140_GPI_MON 0x2f
+#define ADCX140_INT_CFG 0x32
+#define ADCX140_INT_MASK0 0x33
+#define ADCX140_INT_LTCH0 0x36
+#define ADCX140_BIAS_CFG 0x3b
+#define ADCX140_CH1_CFG0 0x3c
+#define ADCX140_CH1_CFG1 0x3d
+#define ADCX140_CH1_CFG2 0x3e
+#define ADCX140_CH1_CFG3 0x3f
+#define ADCX140_CH1_CFG4 0x40
+#define ADCX140_CH2_CFG0 0x41
+#define ADCX140_CH2_CFG1 0x42
+#define ADCX140_CH2_CFG2 0x43
+#define ADCX140_CH2_CFG3 0x44
+#define ADCX140_CH2_CFG4 0x45
+#define ADCX140_CH3_CFG0 0x46
+#define ADCX140_CH3_CFG1 0x47
+#define ADCX140_CH3_CFG2 0x48
+#define ADCX140_CH3_CFG3 0x49
+#define ADCX140_CH3_CFG4 0x4a
+#define ADCX140_CH4_CFG0 0x4b
+#define ADCX140_CH4_CFG1 0x4c
+#define ADCX140_CH4_CFG2 0x4d
+#define ADCX140_CH4_CFG3 0x4e
+#define ADCX140_CH4_CFG4 0x4f
+#define ADCX140_CH5_CFG2 0x52
+#define ADCX140_CH5_CFG3 0x53
+#define ADCX140_CH5_CFG4 0x54
+#define ADCX140_CH6_CFG2 0x57
+#define ADCX140_CH6_CFG3 0x58
+#define ADCX140_CH6_CFG4 0x59
+#define ADCX140_CH7_CFG2 0x5c
+#define ADCX140_CH7_CFG3 0x5d
+#define ADCX140_CH7_CFG4 0x5e
+#define ADCX140_CH8_CFG2 0x61
+#define ADCX140_CH8_CFG3 0x62
+#define ADCX140_CH8_CFG4 0x63
+#define ADCX140_DSP_CFG0 0x6b
+#define ADCX140_DSP_CFG1 0x6c
+#define ADCX140_DRE_CFG0 0x6d
+#define ADCX140_AGC_CFG0 0x70
+#define ADCX140_IN_CH_EN 0x73
+#define ADCX140_ASI_OUT_CH_EN 0x74
+#define ADCX140_PWR_CFG 0x75
+#define ADCX140_DEV_STS0 0x76
+#define ADCX140_DEV_STS1 0x77
+#define ADCX140_PHASE_CALIB 0x7b
+
+#define ADCX140_RESET BIT(0)
+
+#define ADCX140_WAKE_DEV BIT(0)
+#define ADCX140_AREG_INTERNAL BIT(7)
+
+#define ADCX140_BCLKINV_BIT BIT(2)
+#define ADCX140_FSYNCINV_BIT BIT(3)
+#define ADCX140_INV_MSK (ADCX140_BCLKINV_BIT | ADCX140_FSYNCINV_BIT)
+#define ADCX140_BCLK_FSYNC_MASTER BIT(7)
+#define ADCX140_I2S_MODE_BIT BIT(6)
+#define ADCX140_LEFT_JUST_BIT BIT(7)
+#define ADCX140_ASI_FORMAT_MSK (ADCX140_I2S_MODE_BIT | ADCX140_LEFT_JUST_BIT)
+
+#define ADCX140_16_BIT_WORD 0x0
+#define ADCX140_20_BIT_WORD BIT(4)
+#define ADCX140_24_BIT_WORD BIT(5)
+#define ADCX140_32_BIT_WORD (BIT(4) | BIT(5))
+#define ADCX140_WORD_LEN_MSK 0x30
+
+#define ADCX140_MAX_CHANNELS 8
+
+#define ADCX140_MIC_BIAS_VAL_VREF 0
+#define ADCX140_MIC_BIAS_VAL_VREF_1096 1
+#define ADCX140_MIC_BIAS_VAL_AVDD 6
+#define ADCX140_MIC_BIAS_VAL_MSK GENMASK(6, 4)
+#define ADCX140_MIC_BIAS_SHIFT 4
+
+#define ADCX140_MIC_BIAS_VREF_275V 0
+#define ADCX140_MIC_BIAS_VREF_25V 1
+#define ADCX140_MIC_BIAS_VREF_1375V 2
+#define ADCX140_MIC_BIAS_VREF_MSK GENMASK(1, 0)
+
+#define ADCX140_PWR_CTRL_MSK GENMASK(7, 5)
+#define ADCX140_PWR_CFG_BIAS_PDZ BIT(7)
+#define ADCX140_PWR_CFG_ADC_PDZ BIT(6)
+#define ADCX140_PWR_CFG_PLL_PDZ BIT(5)
+
+#define ADCX140_TX_OFFSET_MASK GENMASK(4, 0)
+
+#define ADCX140_NUM_PDM_EDGES 4
+#define ADCX140_PDM_EDGE_SHIFT 7
+
+#define ADCX140_NUM_GPI_PINS 4
+#define ADCX140_GPI_SHIFT 4
+#define ADCX140_GPI1_INDEX 0
+#define ADCX140_GPI2_INDEX 1
+#define ADCX140_GPI3_INDEX 2
+#define ADCX140_GPI4_INDEX 3
+
+#define ADCX140_NUM_GPOS 4
+#define ADCX140_NUM_GPO_CFGS 2
+#define ADCX140_GPO_SHIFT 4
+#define ADCX140_GPO_CFG_MAX 4
+#define ADCX140_GPO_DRV_MAX 5
+
+#define ADCX140_TX_FILL BIT(0)
+
+#define ADCX140_NUM_GPIO_CFGS 2
+#define ADCX140_GPIO_SHIFT 4
+#define ADCX140_GPIO_CFG_MAX 15
+#define ADCX140_GPIO_DRV_MAX 5
+
+#endif /* _TLV320ADCX140_ */
--
2.17.1
On Mon, Aug 01, 2022 at 10:59:38AM +0800, Kevin Lu wrote:
> *** BLURB HERE ***
>
> Kevin Lu (1):
> Add a new kcontrol for phase calib, remove unnecessary header file,
> make code more comply with linux coding style
Please don't send cover letters for single patches, if there is anything
that needs saying put it in the changelog of the patch or after the ---
if it's administrative stuff. This reduces mail volume and ensures that
any important information is recorded in the changelog rather than being
lost.
On Mon, Aug 01, 2022 at 10:59:39AM +0800, Kevin Lu wrote:
This looks mostly good however there are a few things that need looking
at:
> Signed-off-by: Kevin Lu <[email protected]>
> ---
> tlv320adcx140.c | 1218 +++++++++++++++++++++++++++++++++++++++++++++++
> tlv320adcx140.h | 157 ++++++
> 2 files changed, 1375 insertions(+)
> create mode 100644 tlv320adcx140.c
> create mode 100644 tlv320adcx140.h
This is a new driver which isn't what the changelog says at all, and it
lacks any Kconfig or Makefile updates so the new driver won't be built.
Please format your changelog as covered in submitting-patches.rst, both
accurately describing what's in the patch and following the subject line
style for the subsystem.
> +static const char * const resistor_text[] = {
> + "2.5 kOhm", "10 kOhm", "20 kOhm"
> +};
> +
> +static SOC_ENUM_SINGLE_DECL(in1_resistor_enum, ADCX140_CH1_CFG0, 2,
> + resistor_text);
> +static SOC_ENUM_SINGLE_DECL(in2_resistor_enum, ADCX140_CH2_CFG0, 2,
> + resistor_text);
> +static SOC_ENUM_SINGLE_DECL(in3_resistor_enum, ADCX140_CH3_CFG0, 2,
> + resistor_text);
> +static SOC_ENUM_SINGLE_DECL(in4_resistor_enum, ADCX140_CH4_CFG0, 2,
> + resistor_text);
Is this something that can usefully be varied at runtime or does it
depend on the board design?
> + SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
> + &adcx140_output_mixer_controls[0],
> + ARRAY_SIZE(adcx140_output_mixer_controls)),
Don't put all the mixer controls into an array and then index into it by
magic numbers, just declare variables for all the individual controls.
This is much more readable and less error prone.
> +static const char * const phase_calib_text[] = {
> + "Disable",
> + "Enable"
> +};
> +
> +static const struct soc_enum phase_calib_enum[] = {
> + SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(phase_calib_text), phase_calib_text),
> +};
This is a simple on/off switch, it should be a normal control with a
name ending in Switch not an enum.
> +static int adcx140_phase_calib_get(struct snd_kcontrol *pKcontrol,
> + struct snd_ctl_elem_value *pValue)
> +{
> + struct snd_soc_component *codec =
> + snd_soc_kcontrol_component(pKcontrol);
> + struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(codec);
> +
> + pValue->value.integer.value[0] = adcx140->phase_calib_on;
Please follow the normal kernel coding style for variable and parameter
names, don't use hungarian notation.
> +static int adcx140_phase_calib_put(struct snd_kcontrol *pKcontrol,
> + struct snd_ctl_elem_value *pValue)
> +{
> + struct snd_soc_component *codec
> + = snd_soc_kcontrol_component(pKcontrol);
> + struct adcx140_priv *adcx140 = snd_soc_component_get_drvdata(codec);
> +
> + adcx140->phase_calib_on = pValue->value.integer.value[0];
> +
> + return 0;
> +}
This should return 1 if the value changes, the mixer-test selftest will
check for this and a number of other issues - you should ensure your
driver passes that cleanly.
> + /* signal polarity */
> + switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
> + case SND_SOC_DAIFMT_IB_NF:
> + case SND_SOC_DAIFMT_IB_IF:
> + inverted_bclk = !inverted_bclk;
> + break;
> + case SND_SOC_DAIFMT_NB_IF:
> + iface_reg1 |= ADCX140_FSYNCINV_BIT;
> + break;
> + case SND_SOC_DAIFMT_NB_NF:
> + break;
This is treating _IB_IF and _IB_NF identically which is clearly wrong.
It looks like the ADCX140_FSYNCINV_BIT setting needs to be handled.
> + adcx140->supply_areg = devm_regulator_get_optional(adcx140->dev,
> + "areg");
> + if (IS_ERR(adcx140->supply_areg)) {
> + if (PTR_ERR(adcx140->supply_areg) == -EPROBE_DEFER)
> + return -EPROBE_DEFER;
> +
> + adcx140->supply_areg = NULL;
> + } else {
> + ret = regulator_enable(adcx140->supply_areg);
> + if (ret) {
> + dev_err(adcx140->dev, "Failed to enable areg\n");
> + return ret;
> + }
> +
> + ret = devm_add_action_or_reset(&i2c->dev,
> + adcx140_disable_regulator, adcx140);
> + if (ret)
> + return ret;
> + }
Unless the hardware can work without power this is buggy. The driver
should request and unconditionally use all supplies the device
physically has, it should only use _get_optional() for supplies which
may be physically absent in the system for some reason. For example
with the TLV320ADC6140 it looks like the driver shuld be requesting
AVDD and IOVDD and that AREG is an output from the device.