--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+//
+// CS530x CODEC driver
+//
+// Copyright (C) 2024 Cirrus Logic, Inc. and
+// Cirrus Logic International Semiconductor Ltd.
+
+#include <sound/core.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <sound/initval.h>
+#include <linux/module.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <linux/pm.h>
+#include <linux/property.h>
+#include <linux/slab.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#include "cs530x.h"
+
+#define CS530X_MAX_ADC_CH 8
+#define CS530X_MIN_ADC_CH 2
+
+static const char *cs530x_supply_names[CS530X_NUM_SUPPLIES] = {
+ "vdd-a",
+ "vdd-io",
+};
+
+static const struct reg_default cs530x_reg_defaults[] = {
+ { CS530X_CLK_CFG_0, 0x30 },
+ { CS530X_CLK_CFG_1, 0x0001 },
+ { CS530X_CHIP_ENABLE, 0 },
+ { CS530X_ASP_CFG, 0 },
+ { CS530X_SIGNAL_PATH_CFG, 0 },
+ { CS530X_IN_ENABLES, 0 },
+ { CS530X_IN_RAMP_SUM, 0x0022 },
+ { CS530X_IN_FILTER, 0 },
+ { CS530X_IN_HIZ, 0 },
+ { CS530X_IN_INV, 0 },
+ { CS530X_IN_VOL_CTRL1_0, 0x8000 },
+ { CS530X_IN_VOL_CTRL1_1, 0x8000 },
+ { CS530X_IN_VOL_CTRL2_0, 0x8000 },
+ { CS530X_IN_VOL_CTRL2_1, 0x8000 },
+ { CS530X_IN_VOL_CTRL3_0, 0x8000 },
+ { CS530X_IN_VOL_CTRL3_1, 0x8000 },
+ { CS530X_IN_VOL_CTRL4_0, 0x8000 },
+ { CS530X_IN_VOL_CTRL4_1, 0x8000 },
+ { CS530X_PAD_FN, 0 },
+ { CS530X_PAD_LVL, 0 },
+};
+
+static bool cs530x_read_and_write_regs(unsigned int reg)
+{
+ switch (reg) {
+ case CS530X_CLK_CFG_0:
+ case CS530X_CLK_CFG_1:
+ case CS530X_CHIP_ENABLE:
+ case CS530X_ASP_CFG:
+ case CS530X_SIGNAL_PATH_CFG:
+ case CS530X_IN_ENABLES:
+ case CS530X_IN_RAMP_SUM:
+ case CS530X_IN_FILTER:
+ case CS530X_IN_HIZ:
+ case CS530X_IN_INV:
+ case CS530X_IN_VOL_CTRL1_0:
+ case CS530X_IN_VOL_CTRL1_1:
+ case CS530X_IN_VOL_CTRL2_0:
+ case CS530X_IN_VOL_CTRL2_1:
+ case CS530X_IN_VOL_CTRL3_0:
+ case CS530X_IN_VOL_CTRL3_1:
+ case CS530X_IN_VOL_CTRL4_0:
+ case CS530X_IN_VOL_CTRL4_1:
+ case CS530X_PAD_FN:
+ case CS530X_PAD_LVL:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool cs530x_readable_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case CS530X_DEVID:
+ case CS530X_REVID:
+ return true;
+ default:
+ return cs530x_read_and_write_regs(reg);
+ }
+}
+
+static bool cs530x_writeable_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case CS530X_SW_RESET:
+ case CS530X_IN_VOL_CTRL5:
+ return true;
+ default:
+ return cs530x_read_and_write_regs(reg);
+ }
+}
+
+static int cs530x_put_volsw_vu(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+ struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+ struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component);
+ struct regmap *regmap = cs530x->regmap;
+ int ret;
+
+ snd_soc_dapm_mutex_lock(dapm);
+
+ ret = snd_soc_put_volsw(kcontrol, ucontrol);
+ if (ret)
+ goto volsw_err;
+
+ /* Write IN_VU bit for the volume change to take effect */
+ regmap_write(regmap, CS530X_IN_VOL_CTRL5, CS530X_IN_VU);
+
+volsw_err:
+ snd_soc_dapm_mutex_unlock(dapm);
+
+ return ret;
+}
+
+static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -1270, 50, 0);
+
+static const char * const cs530x_in_hpf_text[] = {
+ "Min Phase Slow Roll-off",
+ "Min Phase Fast Roll-off",
+ "Linear Phase Slow Roll-off",
+ "Linear Phase Fast Roll-off",
+};
+
+static SOC_ENUM_SINGLE_DECL(cs530x_in_hpf_enum, CS530X_IN_FILTER,
+ CS530X_IN_FILTER_SHIFT,
+ cs530x_in_hpf_text);
+
+static const char * const cs530x_in_4ch_sum_text[] = {
+ "None",
+ "Groups of 2",
+ "Groups of 4",
+};
+
+static SOC_ENUM_SINGLE_DECL(cs530x_in_sum_ch4_enum, CS530X_IN_RAMP_SUM,
+ CS530X_IN_SUM_MODE_SHIFT,
+ cs530x_in_4ch_sum_text);
+
+static const struct snd_kcontrol_new cs530x_in_sum_4ch_controls[] = {
+SOC_ENUM("IN Sum Select", cs530x_in_sum_ch4_enum),
+};
+
+static const char * const cs530x_in_8ch_sum_text[] = {
+ "None",
+ "Groups of 2",
+ "Groups of 4",
+ "Groups of 8",
+};
+
+static SOC_ENUM_SINGLE_DECL(cs530x_in_sum_ch8_enum, CS530X_IN_RAMP_SUM,
+ CS530X_IN_SUM_MODE_SHIFT,
+ cs530x_in_8ch_sum_text);
+
+static const struct snd_kcontrol_new cs530x_in_sum_8ch_controls[] = {
+SOC_ENUM("IN Sum Select", cs530x_in_sum_ch8_enum),
+};
+
+
+static const char * const cs530x_vol_ramp_text[] = {
+ "0ms/6dB", "0.5ms/6dB", "1ms/6dB", "2ms/6dB", "4ms/6dB", "8ms/6dB",
+ "15ms/6dB", "30ms/6dB",
+};
+
+static SOC_ENUM_SINGLE_DECL(cs530x_ramp_inc_enum, CS530X_IN_RAMP_SUM,
+ CS530X_RAMP_RATE_INC_SHIFT,
+ cs530x_vol_ramp_text);
+
+static SOC_ENUM_SINGLE_DECL(cs530x_ramp_dec_enum, CS530X_IN_RAMP_SUM,
+ CS530X_RAMP_RATE_DEC_SHIFT,
+ cs530x_vol_ramp_text);
+
+static const struct snd_kcontrol_new cs530x_in_1_to_2_controls[] = {
+SOC_SINGLE_EXT_TLV("IN1 Volume", CS530X_IN_VOL_CTRL1_0, 0, 255, 1,
+ snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),
+SOC_SINGLE_EXT_TLV("IN2 Volume", CS530X_IN_VOL_CTRL1_1, 0, 255, 1,
+ snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),
+
+SOC_ENUM("IN HPF Select", cs530x_in_hpf_enum),
+SOC_ENUM("Input Ramp Up", cs530x_ramp_inc_enum),
+SOC_ENUM("Input Ramp Down", cs530x_ramp_dec_enum),
+
+SOC_SINGLE("ADC1 Invert Switch", CS530X_IN_INV, CS530X_IN1_INV_SHIFT, 1, 0),
+SOC_SINGLE("ADC2 Invert Switch", CS530X_IN_INV, CS530X_IN2_INV_SHIFT, 1, 0),
+};
+
+static const struct snd_kcontrol_new cs530x_in_3_to_4_controls[] = {
+SOC_SINGLE_EXT_TLV("IN3 Volume", CS530X_IN_VOL_CTRL2_0, 0, 255, 1,
+ snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),
+SOC_SINGLE_EXT_TLV("IN4 Volume", CS530X_IN_VOL_CTRL2_1, 0, 255, 1,
+ snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),
+
+SOC_SINGLE("ADC3 Invert Switch", CS530X_IN_INV, CS530X_IN3_INV_SHIFT, 1, 0),
+SOC_SINGLE("ADC4 Invert Switch", CS530X_IN_INV, CS530X_IN4_INV_SHIFT, 1, 0),
+};
+
+static const struct snd_kcontrol_new cs530x_in_5_to_8_controls[] = {
+SOC_SINGLE_EXT_TLV("IN5 Volume", CS530X_IN_VOL_CTRL3_0, 0, 255, 1,
+ snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),
+SOC_SINGLE_EXT_TLV("IN6 Volume", CS530X_IN_VOL_CTRL3_1, 0, 255, 1,
+ snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),
+SOC_SINGLE_EXT_TLV("IN7 Volume", CS530X_IN_VOL_CTRL4_0, 0, 255, 1,
+ snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),
+SOC_SINGLE_EXT_TLV("IN8 Volume", CS530X_IN_VOL_CTRL4_1, 0, 255, 1,
+ snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv),
+
+SOC_SINGLE("ADC5 Invert Switch", CS530X_IN_INV, CS530X_IN5_INV_SHIFT, 1, 0),
+SOC_SINGLE("ADC6 Invert Switch", CS530X_IN_INV, CS530X_IN6_INV_SHIFT, 1, 0),
+SOC_SINGLE("ADC7 Invert Switch", CS530X_IN_INV, CS530X_IN7_INV_SHIFT, 1, 0),
+SOC_SINGLE("ADC8 Invert Switch", CS530X_IN_INV, CS530X_IN8_INV_SHIFT, 1, 0),
+};
+
+static int cs530x_adc_event(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol, int event)
+{
+ struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
+ struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component);
+ struct regmap *regmap = cs530x->regmap;
+
+ switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ cs530x->adc_pairs_count++;
+ break;
+ case SND_SOC_DAPM_POST_PMU:
+ regmap_clear_bits(regmap, CS530X_IN_VOL_CTRL1_0 +
+ (w->shift * 2), CS530X_IN_MUTE);
+ regmap_clear_bits(regmap, CS530X_IN_VOL_CTRL1_0 +
+ ((w->shift+1) * 2), CS530X_IN_MUTE);
+
+ cs530x->adc_pairs_count--;
+ if (!cs530x->adc_pairs_count) {
+ usleep_range(1000, 1100);
+ return regmap_write(regmap, CS530X_IN_VOL_CTRL5,
+ CS530X_IN_VU);
+ }
+ break;
+ case SND_SOC_DAPM_PRE_PMD:
+ regmap_set_bits(regmap, CS530X_IN_VOL_CTRL1_0 +
+ (w->shift * 2), CS530X_IN_MUTE);
+ regmap_set_bits(regmap, CS530X_IN_VOL_CTRL1_0 +
+ ((w->shift+1) * 2), CS530X_IN_MUTE);
+ return regmap_write(regmap, CS530X_IN_VOL_CTRL5,
+ CS530X_IN_VU);
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static const struct snd_kcontrol_new adc12_ctrl =
+ SOC_DAPM_SINGLE_VIRT("Switch", 1);
+
+static const struct snd_kcontrol_new adc34_ctrl =
+ SOC_DAPM_SINGLE_VIRT("Switch", 1);
+
+static const struct snd_kcontrol_new adc56_ctrl =
+ SOC_DAPM_SINGLE_VIRT("Switch", 1);
+
+static const struct snd_kcontrol_new adc78_ctrl =
+ SOC_DAPM_SINGLE_VIRT("Switch", 1);
+
+static const struct snd_kcontrol_new in_hpf_ctrl =
+ SOC_DAPM_SINGLE_VIRT("Switch", 1);
+
+/* General DAPM widgets for all devices */
+static const struct snd_soc_dapm_widget cs530x_gen_dapm_widgets[] = {
+SND_SOC_DAPM_SUPPLY("Global Enable", CS530X_CHIP_ENABLE, 0, 0, NULL, 0),
+};
+
+/* ADC's Channels 1 and 2 plus generic ADC DAPM events */
+static const struct snd_soc_dapm_widget cs530x_adc_ch12_dapm_widgets[] = {
+SND_SOC_DAPM_INPUT("IN1"),
+SND_SOC_DAPM_INPUT("IN2"),
+SND_SOC_DAPM_ADC_E("ADC1", NULL, CS530X_IN_ENABLES, 0, 0,
+ cs530x_adc_event,
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU |
+ SND_SOC_DAPM_PRE_PMU),
+SND_SOC_DAPM_ADC("ADC2", NULL, CS530X_IN_ENABLES, 1, 0),
+SND_SOC_DAPM_SWITCH("ADC12 Enable", SND_SOC_NOPM, 0, 0, &adc12_ctrl),
+SND_SOC_DAPM_SWITCH("IN HPF", CS530X_IN_FILTER, CS530X_IN_HPF_EN_SHIFT,
+ 0, &in_hpf_ctrl),
+};
+
+/* ADC's Channels 3 and 4 */
+static const struct snd_soc_dapm_widget cs530x_adc_ch34_dapm_widgets[] = {
+SND_SOC_DAPM_INPUT("IN3"),
+SND_SOC_DAPM_INPUT("IN4"),
+SND_SOC_DAPM_ADC_E("ADC3", NULL, CS530X_IN_ENABLES, 2, 0,
+ cs530x_adc_event,
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU |
+ SND_SOC_DAPM_PRE_PMU),
+SND_SOC_DAPM_ADC("ADC4", NULL, CS530X_IN_ENABLES, 3, 0),
+SND_SOC_DAPM_SWITCH("ADC34 Enable", SND_SOC_NOPM, 0, 0, &adc34_ctrl),
+};
+
+/* ADC's Channels 5 to 8 */
+static const struct snd_soc_dapm_widget cs530x_adc_ch58_dapm_widgets[] = {
+SND_SOC_DAPM_INPUT("IN5"),
+SND_SOC_DAPM_INPUT("IN6"),
+SND_SOC_DAPM_INPUT("IN7"),
+SND_SOC_DAPM_INPUT("IN8"),
+SND_SOC_DAPM_ADC_E("ADC5", NULL, CS530X_IN_ENABLES, 4, 0,
+ cs530x_adc_event,
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU |
+ SND_SOC_DAPM_PRE_PMU),
+SND_SOC_DAPM_ADC("ADC6", NULL, CS530X_IN_ENABLES, 5, 0),
+SND_SOC_DAPM_SWITCH("ADC56 Enable", SND_SOC_NOPM, 0, 0, &adc56_ctrl),
+SND_SOC_DAPM_ADC_E("ADC7", NULL, CS530X_IN_ENABLES, 6, 0,
+ cs530x_adc_event,
+ SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU |
+ SND_SOC_DAPM_PRE_PMU),
+SND_SOC_DAPM_ADC("ADC8", NULL, CS530X_IN_ENABLES, 7, 0),
+SND_SOC_DAPM_SWITCH("ADC78 Enable", SND_SOC_NOPM, 0, 0, &adc78_ctrl),
+};
+
+static const struct snd_soc_dapm_route adc_ch1_2_routes[] = {
+ { "ADC1", NULL, "Global Enable" },
+ { "ADC2", NULL, "Global Enable" },
+
+ { "ADC12 Enable", "Switch", "IN1" },
+ { "ADC12 Enable", "Switch", "IN2" },
+ { "ADC1", NULL, "ADC12 Enable" },
+ { "ADC2", NULL, "ADC12 Enable" },
+ { "IN HPF", "Switch", "ADC1" },
+ { "IN HPF", "Switch", "ADC2" },
+
+ { "AIF Capture", NULL, "IN HPF" },
+ { "AIF Capture", NULL, "ADC1" },
+ { "AIF Capture", NULL, "ADC2" },
+};
+
+static const struct snd_soc_dapm_route adc_ch3_4_routes[] = {
+ { "ADC3", NULL, "Global Enable" },
+ { "ADC4", NULL, "Global Enable" },
+
+ { "ADC34 Enable", "Switch", "IN3" },
+ { "ADC34 Enable", "Switch", "IN4" },
+ { "ADC3", NULL, "ADC34 Enable" },
+ { "ADC4", NULL, "ADC34 Enable" },
+ { "IN HPF", "Switch", "ADC3" },
+ { "IN HPF", "Switch", "ADC4" },
+
+ { "AIF Capture", NULL, "ADC3" },
+ { "AIF Capture", NULL, "ADC4" },
+};
+
+static const struct snd_soc_dapm_route adc_ch5_8_routes[] = {
+ { "ADC5", NULL, "Global Enable" },
+ { "ADC6", NULL, "Global Enable" },
+ { "ADC7", NULL, "Global Enable" },
+ { "ADC8", NULL, "Global Enable" },
+
+ { "ADC56 Enable", "Switch", "IN5" },
+ { "ADC56 Enable", "Switch", "IN6" },
+ { "ADC5", NULL, "ADC56 Enable" },
+ { "ADC6", NULL, "ADC56 Enable" },
+ { "IN HPF", "Switch", "ADC5" },
+ { "IN HPF", "Switch", "ADC6" },
+
+ { "AIF Capture", NULL, "ADC5" },
+ { "AIF Capture", NULL, "ADC6" },
+
+ { "ADC78 Enable", "Switch", "IN7" },
+ { "ADC78 Enable", "Switch", "IN8" },
+ { "ADC7", NULL, "ADC78 Enable" },
+ { "ADC8", NULL, "ADC78 Enable" },
+ { "IN HPF", "Switch", "ADC7" },
+ { "IN HPF", "Switch", "ADC8" },
+
+ { "AIF Capture", NULL, "ADC7" },
+ { "AIF Capture", NULL, "ADC8" },
+};
+
+static void cs530x_add_12_adc_widgets(struct snd_soc_component *component)
+{
+ struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+
+ snd_soc_add_component_controls(component,
+ cs530x_in_1_to_2_controls,
+ ARRAY_SIZE(cs530x_in_1_to_2_controls));
+
+ snd_soc_dapm_new_controls(dapm, cs530x_adc_ch12_dapm_widgets,
+ ARRAY_SIZE(cs530x_adc_ch12_dapm_widgets));
+
+ snd_soc_dapm_add_routes(dapm, adc_ch1_2_routes,
+ ARRAY_SIZE(adc_ch1_2_routes));
+}
+
+static void cs530x_add_34_adc_widgets(struct snd_soc_component *component)
+{
+ struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+
+ snd_soc_add_component_controls(component,
+ cs530x_in_3_to_4_controls,
+ ARRAY_SIZE(cs530x_in_3_to_4_controls));
+
+ snd_soc_dapm_new_controls(dapm, cs530x_adc_ch34_dapm_widgets,
+ ARRAY_SIZE(cs530x_adc_ch34_dapm_widgets));
+
+ snd_soc_dapm_add_routes(dapm, adc_ch3_4_routes,
+ ARRAY_SIZE(adc_ch3_4_routes));
+}
+
+static int cs530x_set_bclk(struct snd_soc_component *component)
+{
+ struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component);
+ struct regmap *regmap = cs530x->regmap;
+ unsigned int bclk_val;
+
+ switch (cs530x->bclk) {
+ case 2822400:
+ case 3072000:
+ bclk_val = CS530X_BCLK_2P822_3P072;
+ break;
+ case 5644800:
+ case 6144000:
+ bclk_val = CS530X_BCLK_5P6448_6P144;
+ break;
+ case 11289600:
+ case 12288000:
+ bclk_val = CS530X_BCLK_11P2896_12P288;
+ break;
+ case 22579200:
+ case 24576000:
+ bclk_val = CS530X_BCLK_24P5792_24P576;
+ break;
+ default:
+ dev_err(component->dev, "Invalid BCLK %d\n", cs530x->bclk);
+ return -EINVAL;
+ }
+
+ dev_dbg(component->dev, "BCLK is %d\n", cs530x->bclk);
+
+ return regmap_update_bits(regmap, CS530X_ASP_CFG,
+ CS530X_ASP_BCLK_FREQ_MASK, bclk_val);
+}
+
+static int cs530x_set_pll_refclk(struct snd_soc_component *component,
+ const unsigned int freq)
+{
+ struct cs530x_priv *priv = snd_soc_component_get_drvdata(component);
+ struct regmap *regmap = priv->regmap;
+ unsigned int refclk;
+
+ switch (freq) {
+ case 2822400:
+ case 3072000:
+ refclk = CS530X_REFCLK_2P822_3P072;
+ break;
+ case 5644800:
+ case 6144000:
+ refclk = CS530X_REFCLK_5P6448_6P144;
+ break;
+ case 11289600:
+ case 12288000:
+ refclk = CS530X_REFCLK_11P2896_12P288;
+ break;
+ case 22579200:
+ case 24576000:
+ refclk = CS530X_REFCLK_24P5792_24P576;
+ break;
+ default:
+ dev_err(component->dev, "Invalid PLL refclk %d\n", freq);
+ return -EINVAL;
+ }
+
+ return regmap_update_bits(regmap, CS530X_CLK_CFG_0,
+ CS530X_PLL_REFCLK_FREQ_MASK, refclk);
+}
+
+static int cs530x_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 cs530x_priv *cs530x = snd_soc_component_get_drvdata(component);
+ struct regmap *regmap = cs530x->regmap;
+ int ret = 0, fs = params_rate(params);
+ unsigned int fs_val;
+
+
+ switch (fs) {
+ case 32000:
+ fs_val = CS530X_FS_32K;
+ break;
+ case 44100:
+ case 48000:
+ fs_val = CS530X_FS_48K_44P1K;
+ break;
+ case 88200:
+ case 96000:
+ fs_val = CS530X_FS_96K_88P2K;
+ break;
+ case 176400:
+ case 192000:
+ fs_val = CS530X_FS_192K_176P4K;
+ break;
+ case 356800:
+ case 384000:
+ fs_val = CS530X_FS_384K_356P8K;
+ break;
+ case 705600:
+ case 768000:
+ fs_val = CS530X_FS_768K_705P6K;
+ break;
+ default:
+ dev_err(component->dev, "Invalid sample rate %d\n", fs);
+ return -EINVAL;
+ }
+
+ cs530x->fs = fs;
+ regmap_update_bits(regmap, CS530X_CLK_CFG_1,
+ CS530X_SAMPLE_RATE_MASK, fs_val);
+
+ if (cs530x->tdm_slots) {
+ dev_dbg(component->dev, "Configuring for %d %d bit TDM slots\n",
+ cs530x->tdm_slots, cs530x->tdm_width);
+ cs530x->bclk = snd_soc_calc_bclk(cs530x->fs,
+ cs530x->tdm_width,
+ params_channels(params),
+ cs530x->tdm_slots);
+ } else {
+ cs530x->bclk = snd_soc_params_to_bclk(params);
+ }
+
+ if (!regmap_test_bits(regmap, CS530X_CLK_CFG_0,
+ CS530X_PLL_REFCLK_SRC_MASK)) {
+ ret = cs530x_set_pll_refclk(component, cs530x->bclk);
+ if (ret)
+ return ret;
+ }
+
+ return cs530x_set_bclk(component);
+}
+
+static int cs530x_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct snd_soc_component *component = dai->component;
+ struct cs530x_priv *priv = snd_soc_component_get_drvdata(component);
+ struct regmap *regmap = priv->regmap;
+ unsigned int asp_fmt, asp_cfg = 0;
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBS_CFS:
+ break;
+ case SND_SOC_DAIFMT_CBM_CFM:
+ asp_cfg = CS530X_ASP_PRIMARY;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_DSP_A:
+ asp_fmt = CS530X_ASP_FMT_DSP_A;
+ break;
+ case SND_SOC_DAIFMT_I2S:
+ asp_fmt = CS530X_ASP_FMT_I2S;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ asp_fmt = CS530X_ASP_FMT_LJ;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ asp_cfg |= CS530X_ASP_BCLK_INV;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_update_bits(regmap, CS530X_ASP_CFG,
+ CS530X_ASP_PRIMARY | CS530X_ASP_BCLK_INV,
+ asp_cfg);
+
+ return regmap_update_bits(regmap, CS530X_SIGNAL_PATH_CFG,
+ CS530X_ASP_FMT_MASK, asp_fmt);
+}
+
+static bool cs530x_check_mclk_freq(struct snd_soc_component *component,
+ const unsigned int freq)
+{
+ switch (freq) {
+ case 24576000:
+ case 22579200:
+ case 12288000:
+ case 11289600:
+ return true;
+ default:
+ dev_err(component->dev, "Invalid MCLK %d\n", freq);
+ return false;
+ }
+}
+
+static int cs530x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
+ unsigned int rx_mask, int slots, int slot_width)
+{
+ struct snd_soc_component *component = dai->component;
+ struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component);
+ struct regmap *regmap = cs530x->regmap;
+ unsigned int val;
+
+ switch (tx_mask) {
+ case CS530X_0_1_TDM_SLOT_MASK:
+ case CS530X_0_3_TDM_SLOT_MASK:
+ case CS530X_0_7_TDM_SLOT_MASK:
+ val = CS530X_0_7_TDM_SLOT_VAL;
+ break;
+ case CS530X_2_3_TDM_SLOT_MASK:
+ val = CS530X_2_3_TDM_SLOT_VAL;
+ break;
+ case CS530X_4_5_TDM_SLOT_MASK:
+ case CS530X_4_7_TDM_SLOT_MASK:
+ val = CS530X_4_7_TDM_SLOT_VAL;
+ break;
+ case CS530X_6_7_TDM_SLOT_MASK:
+ val = CS530X_6_7_TDM_SLOT_VAL;
+ break;
+ case CS530X_8_9_TDM_SLOT_MASK:
+ case CS530X_8_11_TDM_SLOT_MASK:
+ case CS530X_8_15_TDM_SLOT_MASK:
+ val = CS530X_8_15_TDM_SLOT_VAL;
+ break;
+ case CS530X_10_11_TDM_SLOT_MASK:
+ val = CS530X_10_11_TDM_SLOT_VAL;
+ break;
+ case CS530X_12_13_TDM_SLOT_MASK:
+ case CS530X_12_15_TDM_SLOT_MASK:
+ val = CS530X_12_15_TDM_SLOT_VAL;
+ break;
+ case CS530X_14_15_TDM_SLOT_MASK:
+ val = CS530X_14_15_TDM_SLOT_VAL;
+ break;
+ default:
+ dev_err(component->dev, "Invalid TX slot(s) 0x%x\n", tx_mask);
+ return -EINVAL;
+ }
+
+ return regmap_update_bits(regmap, CS530X_SIGNAL_PATH_CFG,
+ CS530X_ASP_TDM_SLOT_MASK,
+ val << CS530X_ASP_TDM_SLOT_SHIFT);
+}
+
+static const struct snd_soc_dai_ops cs530x_dai_ops = {
+ .set_fmt = cs530x_set_fmt,
+ .hw_params = cs530x_hw_params,
+ .set_tdm_slot = cs530x_set_tdm_slot,
+};
+
+static const struct snd_soc_dai_driver cs530x_dai = {
+ .name = "cs530x-dai",
+ .capture = {
+ .stream_name = "AIF Capture",
+ .channels_min = 2,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_KNOT,
+ .formats = SNDRV_PCM_FMTBIT_S32_LE,
+ },
+ .ops = &cs530x_dai_ops,
+ .symmetric_rate = 1,
+ .symmetric_sample_bits = 1,
+};
+
+static int cs530x_set_pll(struct snd_soc_component *component, int pll_id,
+ int source, unsigned int freq_in,
+ unsigned int freq_out)
+{
+ struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component);
+ struct regmap *regmap = cs530x->regmap;
+ unsigned int sysclk_src;
+ int ret;
+
+ regmap_read(regmap, CS530X_CLK_CFG_0, &sysclk_src);
+
+ /* Check if the source is the PLL */
+ if ((sysclk_src & CS530X_SYSCLK_SRC_MASK) == 0)
+ return 0;
+
+ switch (source) {
+ case CS530X_PLL_SRC_MCLK:
+ if (!cs530x_check_mclk_freq(component, freq_in))
+ return -EINVAL;
+
+ ret = cs530x_set_pll_refclk(component, freq_in);
+ if (ret)
+ return ret;
+
+ break;
+ case CS530X_PLL_SRC_BCLK:
+ break;
+ default:
+ dev_err(component->dev, "Invalid PLL source %d\n", source);
+ return -EINVAL;
+ }
+
+ return regmap_update_bits(regmap, CS530X_CLK_CFG_0,
+ CS530X_PLL_REFCLK_SRC_MASK, source);
+}
+
+static int cs530x_component_probe(struct snd_soc_component *component)
+{
+ struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component);
+ struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+ int num_widgets;
+
+ snd_soc_dapm_new_controls(dapm, cs530x_gen_dapm_widgets,
+ ARRAY_SIZE(cs530x_gen_dapm_widgets));
+
+ switch (cs530x->devtype) {
+ case CS5302:
+ cs530x_add_12_adc_widgets(component);
+ break;
+ case CS5304:
+ cs530x_add_12_adc_widgets(component);
+ cs530x_add_34_adc_widgets(component);
+
+ num_widgets = ARRAY_SIZE(cs530x_in_sum_4ch_controls);
+ snd_soc_add_component_controls(component,
+ cs530x_in_sum_4ch_controls,
+ num_widgets);
+ break;
+
+ case CS5308:
+ cs530x_add_12_adc_widgets(component);
+ cs530x_add_34_adc_widgets(component);
+
+ num_widgets = ARRAY_SIZE(cs530x_in_5_to_8_controls);
+ snd_soc_add_component_controls(component,
+ cs530x_in_5_to_8_controls,
+ num_widgets);
+
+ num_widgets = ARRAY_SIZE(cs530x_in_sum_8ch_controls);
+ snd_soc_add_component_controls(component,
+ cs530x_in_sum_8ch_controls,
+ num_widgets);
+
+ num_widgets = ARRAY_SIZE(cs530x_adc_ch58_dapm_widgets);
+ snd_soc_dapm_new_controls(dapm, cs530x_adc_ch58_dapm_widgets,
+ num_widgets);
+
+ snd_soc_dapm_add_routes(dapm, adc_ch5_8_routes,
+ ARRAY_SIZE(adc_ch5_8_routes));
+ break;
+ default:
+ dev_err(component->dev, "Invalid device type %d\n",
+ cs530x->devtype);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int cs530x_set_sysclk(struct snd_soc_component *component, int clk_id,
+ int source, unsigned int freq, int dir)
+{
+ struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component);
+ struct regmap *regmap = cs530x->regmap;
+
+ switch (source) {
+ case CS530X_SYSCLK_SRC_MCLK:
+ if (freq != 24560000 && freq != 22572000) {
+ dev_err(component->dev, "Invalid MCLK source rate %d\n",
+ freq);
+ return -EINVAL;
+ }
+
+ cs530x->mclk_rate = freq;
+ break;
+ case CS530X_SYSCLK_SRC_PLL:
+ break;
+ default:
+ dev_err(component->dev, "Invalid clock id %d\n", clk_id);
+ return -EINVAL;
+ }
+
+ return regmap_update_bits(regmap, CS530X_CLK_CFG_0,
+ CS530X_SYSCLK_SRC_MASK,
+ source << CS530X_SYSCLK_SRC_SHIFT);
+}
+
+static const struct snd_soc_component_driver soc_component_dev_cs530x = {
+ .probe = cs530x_component_probe,
+ .set_sysclk = cs530x_set_sysclk,
+ .set_pll = cs530x_set_pll,
+ .endianness = 1,
+};
+
+const struct regmap_config cs530x_regmap = {
+ .reg_bits = 16,
+ .val_bits = 16,
+
+ .max_register = CS530X_MAX_REGISTER,
+ .readable_reg = cs530x_readable_register,
+ .writeable_reg = cs530x_writeable_register,
+
+ .cache_type = REGCACHE_MAPLE,
+ .reg_defaults = cs530x_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(cs530x_reg_defaults),
+};
+EXPORT_SYMBOL_NS_GPL(cs530x_regmap, SND_SOC_CS530X);
+
+static int cs530x_check_device_id(struct cs530x_priv *cs530x)
+{
+ struct device *dev = cs530x->dev;
+ unsigned int dev_id, rev;
+ int ret;
+
+ ret = regmap_read(cs530x->regmap, CS530X_DEVID, &dev_id);
+ if (ret)
+ return dev_err_probe(dev, ret, "Can't read device ID\n");
+
+ ret = regmap_read(cs530x->regmap, CS530X_REVID, &rev);
+ if (ret)
+ return dev_err_probe(dev, ret, "Can't read REV ID\n");
+
+ dev_dbg(dev, "Device ID 0x%x Rev ID 0x%x\n", dev_id, rev);
+
+ switch (dev_id) {
+ case CS530X_2CH_ADC_DEV_ID:
+ cs530x->num_adcs = 2;
+ break;
+ case CS530X_4CH_ADC_DEV_ID:
+ cs530x->num_adcs = 4;
+ break;
+ case CS530X_8CH_ADC_DEV_ID:
+ cs530x->num_adcs = 8;
+ break;
+ default:
+ return dev_err_probe(dev, -EINVAL, "Invalid device ID 0x%x\n",
+ dev_id);
+ }
+
+ return 0;
+}
+
+static int cs530x_parse_device_properties(struct cs530x_priv *cs530x)
+{
+ struct regmap *regmap = cs530x->regmap;
+ struct device *dev = cs530x->dev;
+ unsigned int val = 0;
+
+ switch (cs530x->num_adcs) {
+ case 8:
+ if (device_property_read_bool(dev, "cirrus,in-hiz-pin78"))
+ val = CS530X_IN78_HIZ;
+
+ if (device_property_read_bool(dev, "cirrus,in-hiz-pin56"))
+ val |= CS530X_IN56_HIZ;
+
+ fallthrough;
+ case 4:
+ if (device_property_read_bool(dev, "cirrus,in-hiz-pin34"))
+ val |= CS530X_IN34_HIZ;
+
+ fallthrough;
+ case 2:
+ if (device_property_read_bool(dev, "cirrus,in-hiz-pin12"))
+ val |= CS530X_IN12_HIZ;
+
+ return regmap_set_bits(regmap, CS530X_IN_HIZ, val);
+ default:
+ return dev_err_probe(dev, -EINVAL,
+ "Invalid number of adcs %d\n",
+ cs530x->num_adcs);
+ }
+}
+
+int cs530x_probe(struct cs530x_priv *cs530x)
+{
+ struct device *dev = cs530x->dev;
+ int ret, i;
+
+ cs530x->dev_dai = devm_kmemdup(dev, &cs530x_dai,
+ sizeof(*(cs530x->dev_dai)),
+ GFP_KERNEL);
+ if (!cs530x->dev_dai)
+ return -ENOMEM;
+
+ for (i = 0; i < ARRAY_SIZE(cs530x->supplies); i++)
+ cs530x->supplies[i].supply = cs530x_supply_names[i];
+
+ ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(cs530x->supplies),
+ cs530x->supplies);
+ if (ret != 0)
+ return dev_err_probe(dev, ret, "Failed to request supplies");
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(cs530x->supplies),
+ cs530x->supplies);
+ if (ret != 0)
+ return dev_err_probe(dev, ret, "Failed to enable supplies");
+
+ cs530x->reset_gpio = devm_gpiod_get_optional(dev, "reset",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(cs530x->reset_gpio)) {
+ ret = dev_err_probe(dev, PTR_ERR(cs530x->reset_gpio),
+ "Reset gpio not available\n");
+ goto err_regulator;
+ }
+
+ if (cs530x->reset_gpio) {
+ usleep_range(2000, 2100);
+ gpiod_set_value_cansleep(cs530x->reset_gpio, 0);
+ }
+
+ usleep_range(5000, 5100);
+ ret = cs530x_check_device_id(cs530x);
+ if (ret)
+ goto err_reset;
+
+ if (!cs530x->reset_gpio) {
+ ret = regmap_write(cs530x->regmap, CS530X_SW_RESET,
+ CS530X_SW_RST_VAL);
+ if (ret) {
+ dev_err_probe(dev, ret, "Soft Reset Failed\n");
+ goto err_reset;
+ }
+ }
+
+ ret = cs530x_parse_device_properties(cs530x);
+ if (ret)
+ goto err_reset;
+
+ cs530x->dev_dai->capture.channels_max = cs530x->num_adcs;
+
+ ret = devm_snd_soc_register_component(dev,
+ &soc_component_dev_cs530x, cs530x->dev_dai, 1);
+ if (ret) {
+ dev_err_probe(dev, ret, "Can't register cs530x component\n");
+ goto err_reset;
+ }
+
+ return 0;
+
+err_reset:
+ gpiod_set_value_cansleep(cs530x->reset_gpio, 1);
+
+err_regulator:
+ regulator_bulk_disable(ARRAY_SIZE(cs530x->supplies),
+ cs530x->supplies);
+
+ return ret;
+}
+EXPORT_SYMBOL_NS_GPL(cs530x_probe, SND_SOC_CS530X);
+
+MODULE_DESCRIPTION("CS530X CODEC Driver");
+MODULE_AUTHOR("Paul Handrigan <paulha@opensource.cirrus.com>");
+MODULE_LICENSE("GPL");
projects / users / dwmw2 / linux.git / commitdiff