| /* |
| * cs35l35.c -- CS35L35 ALSA SoC audio driver |
| * |
| * Copyright 2017 Cirrus Logic, Inc. |
| * |
| * Author: Brian Austin <brian.austin@cirrus.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/version.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/delay.h> |
| #include <linux/i2c.h> |
| #include <linux/slab.h> |
| #include <linux/platform_device.h> |
| #include <linux/regulator/consumer.h> |
| #include <linux/gpio/consumer.h> |
| #include <linux/of_device.h> |
| #include <linux/of_gpio.h> |
| #include <linux/regmap.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/soc.h> |
| #include <sound/soc-dapm.h> |
| #include <linux/gpio.h> |
| #include <sound/initval.h> |
| #include <sound/tlv.h> |
| #include <sound/cs35l35.h> |
| #include <linux/of_irq.h> |
| #include <linux/completion.h> |
| |
| #include "cs35l35.h" |
| |
| /* |
| * Some fields take zero as a valid value so use a high bit flag that won't |
| * get written to the device to mark those. |
| */ |
| #define CS35L35_VALID_PDATA 0x80000000 |
| |
| static const struct reg_default cs35l35_reg[] = { |
| {CS35L35_PWRCTL1, 0x01}, |
| {CS35L35_PWRCTL2, 0x11}, |
| {CS35L35_PWRCTL3, 0x00}, |
| {CS35L35_CLK_CTL1, 0x04}, |
| {CS35L35_CLK_CTL2, 0x12}, |
| {CS35L35_CLK_CTL3, 0xCF}, |
| {CS35L35_SP_FMT_CTL1, 0x20}, |
| {CS35L35_SP_FMT_CTL2, 0x00}, |
| {CS35L35_SP_FMT_CTL3, 0x02}, |
| {CS35L35_MAG_COMP_CTL, 0x00}, |
| {CS35L35_AMP_INP_DRV_CTL, 0x01}, |
| {CS35L35_AMP_DIG_VOL_CTL, 0x12}, |
| {CS35L35_AMP_DIG_VOL, 0x00}, |
| {CS35L35_ADV_DIG_VOL, 0x00}, |
| {CS35L35_PROTECT_CTL, 0x06}, |
| {CS35L35_AMP_GAIN_AUD_CTL, 0x13}, |
| {CS35L35_AMP_GAIN_PDM_CTL, 0x00}, |
| {CS35L35_AMP_GAIN_ADV_CTL, 0x00}, |
| {CS35L35_GPI_CTL, 0x00}, |
| {CS35L35_BST_CVTR_V_CTL, 0x00}, |
| {CS35L35_BST_PEAK_I, 0x07}, |
| {CS35L35_BST_RAMP_CTL, 0x85}, |
| {CS35L35_BST_CONV_COEF_1, 0x24}, |
| {CS35L35_BST_CONV_COEF_2, 0x24}, |
| {CS35L35_BST_CONV_SLOPE_COMP, 0x4E}, |
| {CS35L35_BST_CONV_SW_FREQ, 0x04}, |
| {CS35L35_CLASS_H_CTL, 0x0B}, |
| {CS35L35_CLASS_H_HEADRM_CTL, 0x0B}, |
| {CS35L35_CLASS_H_RELEASE_RATE, 0x08}, |
| {CS35L35_CLASS_H_FET_DRIVE_CTL, 0x41}, |
| {CS35L35_CLASS_H_VP_CTL, 0xC5}, |
| {CS35L35_VPBR_CTL, 0x0A}, |
| {CS35L35_VPBR_VOL_CTL, 0x90}, |
| {CS35L35_VPBR_TIMING_CTL, 0x6A}, |
| {CS35L35_VPBR_MODE_VOL_CTL, 0x00}, |
| {CS35L35_SPKR_MON_CTL, 0xC0}, |
| {CS35L35_IMON_SCALE_CTL, 0x30}, |
| {CS35L35_AUDIN_RXLOC_CTL, 0x00}, |
| {CS35L35_ADVIN_RXLOC_CTL, 0x80}, |
| {CS35L35_VMON_TXLOC_CTL, 0x00}, |
| {CS35L35_IMON_TXLOC_CTL, 0x80}, |
| {CS35L35_VPMON_TXLOC_CTL, 0x04}, |
| {CS35L35_VBSTMON_TXLOC_CTL, 0x84}, |
| {CS35L35_VPBR_STATUS_TXLOC_CTL, 0x04}, |
| {CS35L35_ZERO_FILL_LOC_CTL, 0x00}, |
| {CS35L35_AUDIN_DEPTH_CTL, 0x0F}, |
| {CS35L35_SPKMON_DEPTH_CTL, 0x0F}, |
| {CS35L35_SUPMON_DEPTH_CTL, 0x0F}, |
| {CS35L35_ZEROFILL_DEPTH_CTL, 0x00}, |
| {CS35L35_MULT_DEV_SYNCH1, 0x02}, |
| {CS35L35_MULT_DEV_SYNCH2, 0x80}, |
| {CS35L35_PROT_RELEASE_CTL, 0x00}, |
| {CS35L35_DIAG_MODE_REG_LOCK, 0x00}, |
| {CS35L35_DIAG_MODE_CTL_1, 0x40}, |
| {CS35L35_DIAG_MODE_CTL_2, 0x00}, |
| {CS35L35_INT_MASK_1, 0xFF}, |
| {CS35L35_INT_MASK_2, 0xFF}, |
| {CS35L35_INT_MASK_3, 0xFF}, |
| {CS35L35_INT_MASK_4, 0xFF}, |
| |
| }; |
| |
| static bool cs35l35_volatile_register(struct device *dev, unsigned int reg) |
| { |
| switch (reg) { |
| case CS35L35_INT_STATUS_1: |
| case CS35L35_INT_STATUS_2: |
| case CS35L35_INT_STATUS_3: |
| case CS35L35_INT_STATUS_4: |
| case CS35L35_PLL_STATUS: |
| case CS35L35_OTP_TRIM_STATUS: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static bool cs35l35_readable_register(struct device *dev, unsigned int reg) |
| { |
| switch (reg) { |
| case CS35L35_DEVID_AB ... CS35L35_PWRCTL3: |
| case CS35L35_CLK_CTL1 ... CS35L35_SP_FMT_CTL3: |
| case CS35L35_MAG_COMP_CTL ... CS35L35_AMP_GAIN_AUD_CTL: |
| case CS35L35_AMP_GAIN_PDM_CTL ... CS35L35_BST_PEAK_I: |
| case CS35L35_BST_RAMP_CTL ... CS35L35_BST_CONV_SW_FREQ: |
| case CS35L35_CLASS_H_CTL ... CS35L35_CLASS_H_VP_CTL: |
| case CS35L35_CLASS_H_STATUS: |
| case CS35L35_VPBR_CTL ... CS35L35_VPBR_MODE_VOL_CTL: |
| case CS35L35_VPBR_ATTEN_STATUS: |
| case CS35L35_SPKR_MON_CTL: |
| case CS35L35_IMON_SCALE_CTL ... CS35L35_ZEROFILL_DEPTH_CTL: |
| case CS35L35_MULT_DEV_SYNCH1 ... CS35L35_PROT_RELEASE_CTL: |
| case CS35L35_DIAG_MODE_REG_LOCK ... CS35L35_DIAG_MODE_CTL_2: |
| case CS35L35_INT_MASK_1 ... CS35L35_PLL_STATUS: |
| case CS35L35_OTP_TRIM_STATUS: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static bool cs35l35_precious_register(struct device *dev, unsigned int reg) |
| { |
| switch (reg) { |
| case CS35L35_INT_STATUS_1: |
| case CS35L35_INT_STATUS_2: |
| case CS35L35_INT_STATUS_3: |
| case CS35L35_INT_STATUS_4: |
| case CS35L35_PLL_STATUS: |
| case CS35L35_OTP_TRIM_STATUS: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static void cs35l35_reset(struct cs35l35_private *cs35l35) |
| { |
| gpiod_set_value_cansleep(cs35l35->reset_gpio, 0); |
| usleep_range(2000, 2100); |
| gpiod_set_value_cansleep(cs35l35->reset_gpio, 1); |
| usleep_range(1000, 1100); |
| } |
| |
| static int cs35l35_wait_for_pdn(struct cs35l35_private *cs35l35) |
| { |
| int ret; |
| |
| if (cs35l35->pdata.ext_bst) { |
| usleep_range(5000, 5500); |
| return 0; |
| } |
| |
| reinit_completion(&cs35l35->pdn_done); |
| |
| ret = wait_for_completion_timeout(&cs35l35->pdn_done, |
| msecs_to_jiffies(100)); |
| if (ret == 0) { |
| dev_err(cs35l35->dev, "PDN_DONE did not complete\n"); |
| return -ETIMEDOUT; |
| } |
| |
| return 0; |
| } |
| |
| static int cs35l35_sdin_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 cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component); |
| int ret = 0; |
| |
| switch (event) { |
| case SND_SOC_DAPM_PRE_PMU: |
| regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1, |
| CS35L35_MCLK_DIS_MASK, |
| 0 << CS35L35_MCLK_DIS_SHIFT); |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1, |
| CS35L35_DISCHG_FILT_MASK, |
| 0 << CS35L35_DISCHG_FILT_SHIFT); |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1, |
| CS35L35_PDN_ALL_MASK, 0); |
| break; |
| case SND_SOC_DAPM_POST_PMD: |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1, |
| CS35L35_DISCHG_FILT_MASK, |
| 1 << CS35L35_DISCHG_FILT_SHIFT); |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1, |
| CS35L35_PDN_ALL_MASK, 1); |
| |
| /* Already muted, so disable volume ramp for faster shutdown */ |
| regmap_update_bits(cs35l35->regmap, CS35L35_AMP_DIG_VOL_CTL, |
| CS35L35_AMP_DIGSFT_MASK, 0); |
| |
| ret = cs35l35_wait_for_pdn(cs35l35); |
| |
| regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1, |
| CS35L35_MCLK_DIS_MASK, |
| 1 << CS35L35_MCLK_DIS_SHIFT); |
| |
| regmap_update_bits(cs35l35->regmap, CS35L35_AMP_DIG_VOL_CTL, |
| CS35L35_AMP_DIGSFT_MASK, |
| 1 << CS35L35_AMP_DIGSFT_SHIFT); |
| break; |
| default: |
| dev_err(component->dev, "Invalid event = 0x%x\n", event); |
| ret = -EINVAL; |
| } |
| return ret; |
| } |
| |
| static int cs35l35_main_amp_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 cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component); |
| unsigned int reg[4]; |
| int i; |
| |
| switch (event) { |
| case SND_SOC_DAPM_PRE_PMU: |
| if (cs35l35->pdata.bst_pdn_fet_on) |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2, |
| CS35L35_PDN_BST_MASK, |
| 0 << CS35L35_PDN_BST_FETON_SHIFT); |
| else |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2, |
| CS35L35_PDN_BST_MASK, |
| 0 << CS35L35_PDN_BST_FETOFF_SHIFT); |
| break; |
| case SND_SOC_DAPM_POST_PMU: |
| usleep_range(5000, 5100); |
| /* If in PDM mode we must use VP for Voltage control */ |
| if (cs35l35->pdm_mode) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_BST_CVTR_V_CTL, |
| CS35L35_BST_CTL_MASK, |
| 0 << CS35L35_BST_CTL_SHIFT); |
| |
| regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL, |
| CS35L35_AMP_MUTE_MASK, 0); |
| |
| for (i = 0; i < 2; i++) |
| regmap_bulk_read(cs35l35->regmap, CS35L35_INT_STATUS_1, |
| ®, ARRAY_SIZE(reg)); |
| |
| break; |
| case SND_SOC_DAPM_PRE_PMD: |
| regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL, |
| CS35L35_AMP_MUTE_MASK, |
| 1 << CS35L35_AMP_MUTE_SHIFT); |
| if (cs35l35->pdata.bst_pdn_fet_on) |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2, |
| CS35L35_PDN_BST_MASK, |
| 1 << CS35L35_PDN_BST_FETON_SHIFT); |
| else |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2, |
| CS35L35_PDN_BST_MASK, |
| 1 << CS35L35_PDN_BST_FETOFF_SHIFT); |
| break; |
| case SND_SOC_DAPM_POST_PMD: |
| usleep_range(5000, 5100); |
| /* |
| * If PDM mode we should switch back to pdata value |
| * for Voltage control when we go down |
| */ |
| if (cs35l35->pdm_mode) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_BST_CVTR_V_CTL, |
| CS35L35_BST_CTL_MASK, |
| cs35l35->pdata.bst_vctl |
| << CS35L35_BST_CTL_SHIFT); |
| |
| break; |
| default: |
| dev_err(component->dev, "Invalid event = 0x%x\n", event); |
| } |
| return 0; |
| } |
| |
| static DECLARE_TLV_DB_SCALE(amp_gain_tlv, 0, 1, 1); |
| static DECLARE_TLV_DB_SCALE(dig_vol_tlv, -10200, 50, 0); |
| |
| static const struct snd_kcontrol_new cs35l35_aud_controls[] = { |
| SOC_SINGLE_SX_TLV("Digital Audio Volume", CS35L35_AMP_DIG_VOL, |
| 0, 0x34, 0xE4, dig_vol_tlv), |
| SOC_SINGLE_TLV("Analog Audio Volume", CS35L35_AMP_GAIN_AUD_CTL, 0, 19, 0, |
| amp_gain_tlv), |
| SOC_SINGLE_TLV("PDM Volume", CS35L35_AMP_GAIN_PDM_CTL, 0, 19, 0, |
| amp_gain_tlv), |
| }; |
| |
| static const struct snd_kcontrol_new cs35l35_adv_controls[] = { |
| SOC_SINGLE_SX_TLV("Digital Advisory Volume", CS35L35_ADV_DIG_VOL, |
| 0, 0x34, 0xE4, dig_vol_tlv), |
| SOC_SINGLE_TLV("Analog Advisory Volume", CS35L35_AMP_GAIN_ADV_CTL, 0, 19, 0, |
| amp_gain_tlv), |
| }; |
| |
| static const struct snd_soc_dapm_widget cs35l35_dapm_widgets[] = { |
| SND_SOC_DAPM_AIF_IN_E("SDIN", NULL, 0, CS35L35_PWRCTL3, 1, 1, |
| cs35l35_sdin_event, SND_SOC_DAPM_PRE_PMU | |
| SND_SOC_DAPM_POST_PMD), |
| SND_SOC_DAPM_AIF_OUT("SDOUT", NULL, 0, CS35L35_PWRCTL3, 2, 1), |
| |
| SND_SOC_DAPM_OUTPUT("SPK"), |
| |
| SND_SOC_DAPM_INPUT("VP"), |
| SND_SOC_DAPM_INPUT("VBST"), |
| SND_SOC_DAPM_INPUT("ISENSE"), |
| SND_SOC_DAPM_INPUT("VSENSE"), |
| |
| SND_SOC_DAPM_ADC("VMON ADC", NULL, CS35L35_PWRCTL2, 7, 1), |
| SND_SOC_DAPM_ADC("IMON ADC", NULL, CS35L35_PWRCTL2, 6, 1), |
| SND_SOC_DAPM_ADC("VPMON ADC", NULL, CS35L35_PWRCTL3, 3, 1), |
| SND_SOC_DAPM_ADC("VBSTMON ADC", NULL, CS35L35_PWRCTL3, 4, 1), |
| SND_SOC_DAPM_ADC("CLASS H", NULL, CS35L35_PWRCTL2, 5, 1), |
| |
| SND_SOC_DAPM_OUT_DRV_E("Main AMP", CS35L35_PWRCTL2, 0, 1, NULL, 0, |
| cs35l35_main_amp_event, SND_SOC_DAPM_PRE_PMU | |
| SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_POST_PMU | |
| SND_SOC_DAPM_PRE_PMD), |
| }; |
| |
| static const struct snd_soc_dapm_route cs35l35_audio_map[] = { |
| {"VPMON ADC", NULL, "VP"}, |
| {"VBSTMON ADC", NULL, "VBST"}, |
| {"IMON ADC", NULL, "ISENSE"}, |
| {"VMON ADC", NULL, "VSENSE"}, |
| {"SDOUT", NULL, "IMON ADC"}, |
| {"SDOUT", NULL, "VMON ADC"}, |
| {"SDOUT", NULL, "VBSTMON ADC"}, |
| {"SDOUT", NULL, "VPMON ADC"}, |
| {"AMP Capture", NULL, "SDOUT"}, |
| |
| {"SDIN", NULL, "AMP Playback"}, |
| {"CLASS H", NULL, "SDIN"}, |
| {"Main AMP", NULL, "CLASS H"}, |
| {"SPK", NULL, "Main AMP"}, |
| }; |
| |
| static int cs35l35_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) |
| { |
| struct snd_soc_component *component = codec_dai->component; |
| struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component); |
| |
| switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
| case SND_SOC_DAIFMT_CBM_CFM: |
| regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1, |
| CS35L35_MS_MASK, 1 << CS35L35_MS_SHIFT); |
| cs35l35->slave_mode = false; |
| break; |
| case SND_SOC_DAIFMT_CBS_CFS: |
| regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1, |
| CS35L35_MS_MASK, 0 << CS35L35_MS_SHIFT); |
| cs35l35->slave_mode = true; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
| case SND_SOC_DAIFMT_I2S: |
| cs35l35->i2s_mode = true; |
| cs35l35->pdm_mode = false; |
| break; |
| case SND_SOC_DAIFMT_PDM: |
| cs35l35->pdm_mode = true; |
| cs35l35->i2s_mode = false; |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| struct cs35l35_sysclk_config { |
| int sysclk; |
| int srate; |
| u8 clk_cfg; |
| }; |
| |
| static struct cs35l35_sysclk_config cs35l35_clk_ctl[] = { |
| |
| /* SYSCLK, Sample Rate, Serial Port Cfg */ |
| {5644800, 44100, 0x00}, |
| {5644800, 88200, 0x40}, |
| {6144000, 48000, 0x10}, |
| {6144000, 96000, 0x50}, |
| {11289600, 44100, 0x01}, |
| {11289600, 88200, 0x41}, |
| {11289600, 176400, 0x81}, |
| {12000000, 44100, 0x03}, |
| {12000000, 48000, 0x13}, |
| {12000000, 88200, 0x43}, |
| {12000000, 96000, 0x53}, |
| {12000000, 176400, 0x83}, |
| {12000000, 192000, 0x93}, |
| {12288000, 48000, 0x11}, |
| {12288000, 96000, 0x51}, |
| {12288000, 192000, 0x91}, |
| {13000000, 44100, 0x07}, |
| {13000000, 48000, 0x17}, |
| {13000000, 88200, 0x47}, |
| {13000000, 96000, 0x57}, |
| {13000000, 176400, 0x87}, |
| {13000000, 192000, 0x97}, |
| {22579200, 44100, 0x02}, |
| {22579200, 88200, 0x42}, |
| {22579200, 176400, 0x82}, |
| {24000000, 44100, 0x0B}, |
| {24000000, 48000, 0x1B}, |
| {24000000, 88200, 0x4B}, |
| {24000000, 96000, 0x5B}, |
| {24000000, 176400, 0x8B}, |
| {24000000, 192000, 0x9B}, |
| {24576000, 48000, 0x12}, |
| {24576000, 96000, 0x52}, |
| {24576000, 192000, 0x92}, |
| {26000000, 44100, 0x0F}, |
| {26000000, 48000, 0x1F}, |
| {26000000, 88200, 0x4F}, |
| {26000000, 96000, 0x5F}, |
| {26000000, 176400, 0x8F}, |
| {26000000, 192000, 0x9F}, |
| }; |
| |
| static int cs35l35_get_clk_config(int sysclk, int srate) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(cs35l35_clk_ctl); i++) { |
| if (cs35l35_clk_ctl[i].sysclk == sysclk && |
| cs35l35_clk_ctl[i].srate == srate) |
| return cs35l35_clk_ctl[i].clk_cfg; |
| } |
| return -EINVAL; |
| } |
| |
| static int cs35l35_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 cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component); |
| struct classh_cfg *classh = &cs35l35->pdata.classh_algo; |
| int srate = params_rate(params); |
| int ret = 0; |
| u8 sp_sclks; |
| int audin_format; |
| int errata_chk; |
| |
| int clk_ctl = cs35l35_get_clk_config(cs35l35->sysclk, srate); |
| |
| if (clk_ctl < 0) { |
| dev_err(component->dev, "Invalid CLK:Rate %d:%d\n", |
| cs35l35->sysclk, srate); |
| return -EINVAL; |
| } |
| |
| ret = regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL2, |
| CS35L35_CLK_CTL2_MASK, clk_ctl); |
| if (ret != 0) { |
| dev_err(component->dev, "Failed to set port config %d\n", ret); |
| return ret; |
| } |
| |
| /* |
| * Rev A0 Errata |
| * When configured for the weak-drive detection path (CH_WKFET_DIS = 0) |
| * the Class H algorithm does not enable weak-drive operation for |
| * nonzero values of CH_WKFET_DELAY if SP_RATE = 01 or 10 |
| */ |
| errata_chk = clk_ctl & CS35L35_SP_RATE_MASK; |
| |
| if (classh->classh_wk_fet_disable == 0x00 && |
| (errata_chk == 0x01 || errata_chk == 0x03)) { |
| ret = regmap_update_bits(cs35l35->regmap, |
| CS35L35_CLASS_H_FET_DRIVE_CTL, |
| CS35L35_CH_WKFET_DEL_MASK, |
| 0 << CS35L35_CH_WKFET_DEL_SHIFT); |
| if (ret != 0) { |
| dev_err(component->dev, "Failed to set fet config %d\n", |
| ret); |
| return ret; |
| } |
| } |
| |
| /* |
| * You can pull more Monitor data from the SDOUT pin than going to SDIN |
| * Just make sure your SCLK is fast enough to fill the frame |
| */ |
| if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
| switch (params_width(params)) { |
| case 8: |
| audin_format = CS35L35_SDIN_DEPTH_8; |
| break; |
| case 16: |
| audin_format = CS35L35_SDIN_DEPTH_16; |
| break; |
| case 24: |
| audin_format = CS35L35_SDIN_DEPTH_24; |
| break; |
| default: |
| dev_err(component->dev, "Unsupported Width %d\n", |
| params_width(params)); |
| return -EINVAL; |
| } |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_AUDIN_DEPTH_CTL, |
| CS35L35_AUDIN_DEPTH_MASK, |
| audin_format << |
| CS35L35_AUDIN_DEPTH_SHIFT); |
| if (cs35l35->pdata.stereo) { |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_AUDIN_DEPTH_CTL, |
| CS35L35_ADVIN_DEPTH_MASK, |
| audin_format << |
| CS35L35_ADVIN_DEPTH_SHIFT); |
| } |
| } |
| |
| if (cs35l35->i2s_mode) { |
| /* We have to take the SCLK to derive num sclks |
| * to configure the CLOCK_CTL3 register correctly |
| */ |
| if ((cs35l35->sclk / srate) % 4) { |
| dev_err(component->dev, "Unsupported sclk/fs ratio %d:%d\n", |
| cs35l35->sclk, srate); |
| return -EINVAL; |
| } |
| sp_sclks = ((cs35l35->sclk / srate) / 4) - 1; |
| |
| /* Only certain ratios are supported in I2S Slave Mode */ |
| if (cs35l35->slave_mode) { |
| switch (sp_sclks) { |
| case CS35L35_SP_SCLKS_32FS: |
| case CS35L35_SP_SCLKS_48FS: |
| case CS35L35_SP_SCLKS_64FS: |
| break; |
| default: |
| dev_err(component->dev, "ratio not supported\n"); |
| return -EINVAL; |
| } |
| } else { |
| /* Only certain ratios supported in I2S MASTER Mode */ |
| switch (sp_sclks) { |
| case CS35L35_SP_SCLKS_32FS: |
| case CS35L35_SP_SCLKS_64FS: |
| break; |
| default: |
| dev_err(component->dev, "ratio not supported\n"); |
| return -EINVAL; |
| } |
| } |
| ret = regmap_update_bits(cs35l35->regmap, |
| CS35L35_CLK_CTL3, |
| CS35L35_SP_SCLKS_MASK, sp_sclks << |
| CS35L35_SP_SCLKS_SHIFT); |
| if (ret != 0) { |
| dev_err(component->dev, "Failed to set fsclk %d\n", ret); |
| return ret; |
| } |
| } |
| |
| return ret; |
| } |
| |
| static const unsigned int cs35l35_src_rates[] = { |
| 44100, 48000, 88200, 96000, 176400, 192000 |
| }; |
| |
| static const struct snd_pcm_hw_constraint_list cs35l35_constraints = { |
| .count = ARRAY_SIZE(cs35l35_src_rates), |
| .list = cs35l35_src_rates, |
| }; |
| |
| static int cs35l35_pcm_startup(struct snd_pcm_substream *substream, |
| struct snd_soc_dai *dai) |
| { |
| struct snd_soc_component *component = dai->component; |
| struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component); |
| |
| if (!substream->runtime) |
| return 0; |
| |
| snd_pcm_hw_constraint_list(substream->runtime, 0, |
| SNDRV_PCM_HW_PARAM_RATE, &cs35l35_constraints); |
| |
| regmap_update_bits(cs35l35->regmap, CS35L35_AMP_INP_DRV_CTL, |
| CS35L35_PDM_MODE_MASK, |
| 0 << CS35L35_PDM_MODE_SHIFT); |
| |
| return 0; |
| } |
| |
| static const unsigned int cs35l35_pdm_rates[] = { |
| 44100, 48000, 88200, 96000 |
| }; |
| |
| static const struct snd_pcm_hw_constraint_list cs35l35_pdm_constraints = { |
| .count = ARRAY_SIZE(cs35l35_pdm_rates), |
| .list = cs35l35_pdm_rates, |
| }; |
| |
| static int cs35l35_pdm_startup(struct snd_pcm_substream *substream, |
| struct snd_soc_dai *dai) |
| { |
| struct snd_soc_component *component = dai->component; |
| struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component); |
| |
| if (!substream->runtime) |
| return 0; |
| |
| snd_pcm_hw_constraint_list(substream->runtime, 0, |
| SNDRV_PCM_HW_PARAM_RATE, |
| &cs35l35_pdm_constraints); |
| |
| regmap_update_bits(cs35l35->regmap, CS35L35_AMP_INP_DRV_CTL, |
| CS35L35_PDM_MODE_MASK, |
| 1 << CS35L35_PDM_MODE_SHIFT); |
| |
| return 0; |
| } |
| |
| static int cs35l35_dai_set_sysclk(struct snd_soc_dai *dai, |
| int clk_id, unsigned int freq, int dir) |
| { |
| struct snd_soc_component *component = dai->component; |
| struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component); |
| |
| /* Need the SCLK Frequency regardless of sysclk source for I2S */ |
| cs35l35->sclk = freq; |
| |
| return 0; |
| } |
| |
| static const struct snd_soc_dai_ops cs35l35_ops = { |
| .startup = cs35l35_pcm_startup, |
| .set_fmt = cs35l35_set_dai_fmt, |
| .hw_params = cs35l35_hw_params, |
| .set_sysclk = cs35l35_dai_set_sysclk, |
| }; |
| |
| static const struct snd_soc_dai_ops cs35l35_pdm_ops = { |
| .startup = cs35l35_pdm_startup, |
| .set_fmt = cs35l35_set_dai_fmt, |
| .hw_params = cs35l35_hw_params, |
| }; |
| |
| static struct snd_soc_dai_driver cs35l35_dai[] = { |
| { |
| .name = "cs35l35-pcm", |
| .id = 0, |
| .playback = { |
| .stream_name = "AMP Playback", |
| .channels_min = 1, |
| .channels_max = 8, |
| .rates = SNDRV_PCM_RATE_KNOT, |
| .formats = CS35L35_FORMATS, |
| }, |
| .capture = { |
| .stream_name = "AMP Capture", |
| .channels_min = 1, |
| .channels_max = 8, |
| .rates = SNDRV_PCM_RATE_KNOT, |
| .formats = CS35L35_FORMATS, |
| }, |
| .ops = &cs35l35_ops, |
| .symmetric_rates = 1, |
| }, |
| { |
| .name = "cs35l35-pdm", |
| .id = 1, |
| .playback = { |
| .stream_name = "PDM Playback", |
| .channels_min = 1, |
| .channels_max = 2, |
| .rates = SNDRV_PCM_RATE_KNOT, |
| .formats = CS35L35_FORMATS, |
| }, |
| .ops = &cs35l35_pdm_ops, |
| }, |
| }; |
| |
| static int cs35l35_component_set_sysclk(struct snd_soc_component *component, |
| int clk_id, int source, unsigned int freq, |
| int dir) |
| { |
| struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component); |
| int clksrc; |
| int ret = 0; |
| |
| switch (clk_id) { |
| case 0: |
| clksrc = CS35L35_CLK_SOURCE_MCLK; |
| break; |
| case 1: |
| clksrc = CS35L35_CLK_SOURCE_SCLK; |
| break; |
| case 2: |
| clksrc = CS35L35_CLK_SOURCE_PDM; |
| break; |
| default: |
| dev_err(component->dev, "Invalid CLK Source\n"); |
| return -EINVAL; |
| } |
| |
| switch (freq) { |
| case 5644800: |
| case 6144000: |
| case 11289600: |
| case 12000000: |
| case 12288000: |
| case 13000000: |
| case 22579200: |
| case 24000000: |
| case 24576000: |
| case 26000000: |
| cs35l35->sysclk = freq; |
| break; |
| default: |
| dev_err(component->dev, "Invalid CLK Frequency Input : %d\n", freq); |
| return -EINVAL; |
| } |
| |
| ret = regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1, |
| CS35L35_CLK_SOURCE_MASK, |
| clksrc << CS35L35_CLK_SOURCE_SHIFT); |
| if (ret != 0) { |
| dev_err(component->dev, "Failed to set sysclk %d\n", ret); |
| return ret; |
| } |
| |
| return ret; |
| } |
| |
| static int cs35l35_boost_inductor(struct cs35l35_private *cs35l35, |
| int inductor) |
| { |
| struct regmap *regmap = cs35l35->regmap; |
| unsigned int bst_ipk = 0; |
| |
| /* |
| * Digital Boost Converter Configuration for feedback, |
| * ramping, switching frequency, and estimation block seeding. |
| */ |
| |
| regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ, |
| CS35L35_BST_CONV_SWFREQ_MASK, 0x00); |
| |
| regmap_read(regmap, CS35L35_BST_PEAK_I, &bst_ipk); |
| bst_ipk &= CS35L35_BST_IPK_MASK; |
| |
| switch (inductor) { |
| case 1000: /* 1 uH */ |
| regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x24); |
| regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x24); |
| regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ, |
| CS35L35_BST_CONV_LBST_MASK, 0x00); |
| |
| if (bst_ipk < 0x04) |
| regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B); |
| else |
| regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x4E); |
| break; |
| case 1200: /* 1.2 uH */ |
| regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x20); |
| regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x20); |
| regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ, |
| CS35L35_BST_CONV_LBST_MASK, 0x01); |
| |
| if (bst_ipk < 0x04) |
| regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B); |
| else |
| regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x47); |
| break; |
| case 1500: /* 1.5uH */ |
| regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x20); |
| regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x20); |
| regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ, |
| CS35L35_BST_CONV_LBST_MASK, 0x02); |
| |
| if (bst_ipk < 0x04) |
| regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B); |
| else |
| regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x3C); |
| break; |
| case 2200: /* 2.2uH */ |
| regmap_write(regmap, CS35L35_BST_CONV_COEF_1, 0x19); |
| regmap_write(regmap, CS35L35_BST_CONV_COEF_2, 0x25); |
| regmap_update_bits(regmap, CS35L35_BST_CONV_SW_FREQ, |
| CS35L35_BST_CONV_LBST_MASK, 0x03); |
| |
| if (bst_ipk < 0x04) |
| regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x1B); |
| else |
| regmap_write(regmap, CS35L35_BST_CONV_SLOPE_COMP, 0x23); |
| break; |
| default: |
| dev_err(cs35l35->dev, "Invalid Inductor Value %d uH\n", |
| inductor); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static int cs35l35_component_probe(struct snd_soc_component *component) |
| { |
| struct cs35l35_private *cs35l35 = snd_soc_component_get_drvdata(component); |
| struct classh_cfg *classh = &cs35l35->pdata.classh_algo; |
| struct monitor_cfg *monitor_config = &cs35l35->pdata.mon_cfg; |
| int ret; |
| |
| /* Set Platform Data */ |
| if (cs35l35->pdata.bst_vctl) |
| regmap_update_bits(cs35l35->regmap, CS35L35_BST_CVTR_V_CTL, |
| CS35L35_BST_CTL_MASK, |
| cs35l35->pdata.bst_vctl); |
| |
| if (cs35l35->pdata.bst_ipk) |
| regmap_update_bits(cs35l35->regmap, CS35L35_BST_PEAK_I, |
| CS35L35_BST_IPK_MASK, |
| cs35l35->pdata.bst_ipk << |
| CS35L35_BST_IPK_SHIFT); |
| |
| ret = cs35l35_boost_inductor(cs35l35, cs35l35->pdata.boost_ind); |
| if (ret) |
| return ret; |
| |
| if (cs35l35->pdata.gain_zc) |
| regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL, |
| CS35L35_AMP_GAIN_ZC_MASK, |
| cs35l35->pdata.gain_zc << |
| CS35L35_AMP_GAIN_ZC_SHIFT); |
| |
| if (cs35l35->pdata.aud_channel) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_AUDIN_RXLOC_CTL, |
| CS35L35_AUD_IN_LR_MASK, |
| cs35l35->pdata.aud_channel << |
| CS35L35_AUD_IN_LR_SHIFT); |
| |
| if (cs35l35->pdata.stereo) { |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_ADVIN_RXLOC_CTL, |
| CS35L35_ADV_IN_LR_MASK, |
| cs35l35->pdata.adv_channel << |
| CS35L35_ADV_IN_LR_SHIFT); |
| if (cs35l35->pdata.shared_bst) |
| regmap_update_bits(cs35l35->regmap, CS35L35_CLASS_H_CTL, |
| CS35L35_CH_STEREO_MASK, |
| 1 << CS35L35_CH_STEREO_SHIFT); |
| ret = snd_soc_add_component_controls(component, cs35l35_adv_controls, |
| ARRAY_SIZE(cs35l35_adv_controls)); |
| if (ret) |
| return ret; |
| } |
| |
| if (cs35l35->pdata.sp_drv_str) |
| regmap_update_bits(cs35l35->regmap, CS35L35_CLK_CTL1, |
| CS35L35_SP_DRV_MASK, |
| cs35l35->pdata.sp_drv_str << |
| CS35L35_SP_DRV_SHIFT); |
| if (cs35l35->pdata.sp_drv_unused) |
| regmap_update_bits(cs35l35->regmap, CS35L35_SP_FMT_CTL3, |
| CS35L35_SP_I2S_DRV_MASK, |
| cs35l35->pdata.sp_drv_unused << |
| CS35L35_SP_I2S_DRV_SHIFT); |
| |
| if (classh->classh_algo_enable) { |
| if (classh->classh_bst_override) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_CLASS_H_CTL, |
| CS35L35_CH_BST_OVR_MASK, |
| classh->classh_bst_override << |
| CS35L35_CH_BST_OVR_SHIFT); |
| if (classh->classh_bst_max_limit) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_CLASS_H_CTL, |
| CS35L35_CH_BST_LIM_MASK, |
| classh->classh_bst_max_limit << |
| CS35L35_CH_BST_LIM_SHIFT); |
| if (classh->classh_mem_depth) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_CLASS_H_CTL, |
| CS35L35_CH_MEM_DEPTH_MASK, |
| classh->classh_mem_depth << |
| CS35L35_CH_MEM_DEPTH_SHIFT); |
| if (classh->classh_headroom) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_CLASS_H_HEADRM_CTL, |
| CS35L35_CH_HDRM_CTL_MASK, |
| classh->classh_headroom << |
| CS35L35_CH_HDRM_CTL_SHIFT); |
| if (classh->classh_release_rate) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_CLASS_H_RELEASE_RATE, |
| CS35L35_CH_REL_RATE_MASK, |
| classh->classh_release_rate << |
| CS35L35_CH_REL_RATE_SHIFT); |
| if (classh->classh_wk_fet_disable) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_CLASS_H_FET_DRIVE_CTL, |
| CS35L35_CH_WKFET_DIS_MASK, |
| classh->classh_wk_fet_disable << |
| CS35L35_CH_WKFET_DIS_SHIFT); |
| if (classh->classh_wk_fet_delay) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_CLASS_H_FET_DRIVE_CTL, |
| CS35L35_CH_WKFET_DEL_MASK, |
| classh->classh_wk_fet_delay << |
| CS35L35_CH_WKFET_DEL_SHIFT); |
| if (classh->classh_wk_fet_thld) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_CLASS_H_FET_DRIVE_CTL, |
| CS35L35_CH_WKFET_THLD_MASK, |
| classh->classh_wk_fet_thld << |
| CS35L35_CH_WKFET_THLD_SHIFT); |
| if (classh->classh_vpch_auto) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_CLASS_H_VP_CTL, |
| CS35L35_CH_VP_AUTO_MASK, |
| classh->classh_vpch_auto << |
| CS35L35_CH_VP_AUTO_SHIFT); |
| if (classh->classh_vpch_rate) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_CLASS_H_VP_CTL, |
| CS35L35_CH_VP_RATE_MASK, |
| classh->classh_vpch_rate << |
| CS35L35_CH_VP_RATE_SHIFT); |
| if (classh->classh_vpch_man) |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_CLASS_H_VP_CTL, |
| CS35L35_CH_VP_MAN_MASK, |
| classh->classh_vpch_man << |
| CS35L35_CH_VP_MAN_SHIFT); |
| } |
| |
| if (monitor_config->is_present) { |
| if (monitor_config->vmon_specs) { |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_SPKMON_DEPTH_CTL, |
| CS35L35_VMON_DEPTH_MASK, |
| monitor_config->vmon_dpth << |
| CS35L35_VMON_DEPTH_SHIFT); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_VMON_TXLOC_CTL, |
| CS35L35_MON_TXLOC_MASK, |
| monitor_config->vmon_loc << |
| CS35L35_MON_TXLOC_SHIFT); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_VMON_TXLOC_CTL, |
| CS35L35_MON_FRM_MASK, |
| monitor_config->vmon_frm << |
| CS35L35_MON_FRM_SHIFT); |
| } |
| if (monitor_config->imon_specs) { |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_SPKMON_DEPTH_CTL, |
| CS35L35_IMON_DEPTH_MASK, |
| monitor_config->imon_dpth << |
| CS35L35_IMON_DEPTH_SHIFT); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_IMON_TXLOC_CTL, |
| CS35L35_MON_TXLOC_MASK, |
| monitor_config->imon_loc << |
| CS35L35_MON_TXLOC_SHIFT); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_IMON_TXLOC_CTL, |
| CS35L35_MON_FRM_MASK, |
| monitor_config->imon_frm << |
| CS35L35_MON_FRM_SHIFT); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_IMON_SCALE_CTL, |
| CS35L35_IMON_SCALE_MASK, |
| monitor_config->imon_scale << |
| CS35L35_IMON_SCALE_SHIFT); |
| } |
| if (monitor_config->vpmon_specs) { |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_SUPMON_DEPTH_CTL, |
| CS35L35_VPMON_DEPTH_MASK, |
| monitor_config->vpmon_dpth << |
| CS35L35_VPMON_DEPTH_SHIFT); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_VPMON_TXLOC_CTL, |
| CS35L35_MON_TXLOC_MASK, |
| monitor_config->vpmon_loc << |
| CS35L35_MON_TXLOC_SHIFT); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_VPMON_TXLOC_CTL, |
| CS35L35_MON_FRM_MASK, |
| monitor_config->vpmon_frm << |
| CS35L35_MON_FRM_SHIFT); |
| } |
| if (monitor_config->vbstmon_specs) { |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_SUPMON_DEPTH_CTL, |
| CS35L35_VBSTMON_DEPTH_MASK, |
| monitor_config->vpmon_dpth << |
| CS35L35_VBSTMON_DEPTH_SHIFT); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_VBSTMON_TXLOC_CTL, |
| CS35L35_MON_TXLOC_MASK, |
| monitor_config->vbstmon_loc << |
| CS35L35_MON_TXLOC_SHIFT); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_VBSTMON_TXLOC_CTL, |
| CS35L35_MON_FRM_MASK, |
| monitor_config->vbstmon_frm << |
| CS35L35_MON_FRM_SHIFT); |
| } |
| if (monitor_config->vpbrstat_specs) { |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_SUPMON_DEPTH_CTL, |
| CS35L35_VPBRSTAT_DEPTH_MASK, |
| monitor_config->vpbrstat_dpth << |
| CS35L35_VPBRSTAT_DEPTH_SHIFT); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_VPBR_STATUS_TXLOC_CTL, |
| CS35L35_MON_TXLOC_MASK, |
| monitor_config->vpbrstat_loc << |
| CS35L35_MON_TXLOC_SHIFT); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_VPBR_STATUS_TXLOC_CTL, |
| CS35L35_MON_FRM_MASK, |
| monitor_config->vpbrstat_frm << |
| CS35L35_MON_FRM_SHIFT); |
| } |
| if (monitor_config->zerofill_specs) { |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_SUPMON_DEPTH_CTL, |
| CS35L35_ZEROFILL_DEPTH_MASK, |
| monitor_config->zerofill_dpth << |
| CS35L35_ZEROFILL_DEPTH_SHIFT); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_ZERO_FILL_LOC_CTL, |
| CS35L35_MON_TXLOC_MASK, |
| monitor_config->zerofill_loc << |
| CS35L35_MON_TXLOC_SHIFT); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_ZERO_FILL_LOC_CTL, |
| CS35L35_MON_FRM_MASK, |
| monitor_config->zerofill_frm << |
| CS35L35_MON_FRM_SHIFT); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static const struct snd_soc_component_driver soc_component_dev_cs35l35 = { |
| .probe = cs35l35_component_probe, |
| .set_sysclk = cs35l35_component_set_sysclk, |
| .dapm_widgets = cs35l35_dapm_widgets, |
| .num_dapm_widgets = ARRAY_SIZE(cs35l35_dapm_widgets), |
| .dapm_routes = cs35l35_audio_map, |
| .num_dapm_routes = ARRAY_SIZE(cs35l35_audio_map), |
| .controls = cs35l35_aud_controls, |
| .num_controls = ARRAY_SIZE(cs35l35_aud_controls), |
| .idle_bias_on = 1, |
| .use_pmdown_time = 1, |
| .endianness = 1, |
| .non_legacy_dai_naming = 1, |
| }; |
| |
| static struct regmap_config cs35l35_regmap = { |
| .reg_bits = 8, |
| .val_bits = 8, |
| |
| .max_register = CS35L35_MAX_REGISTER, |
| .reg_defaults = cs35l35_reg, |
| .num_reg_defaults = ARRAY_SIZE(cs35l35_reg), |
| .volatile_reg = cs35l35_volatile_register, |
| .readable_reg = cs35l35_readable_register, |
| .precious_reg = cs35l35_precious_register, |
| .cache_type = REGCACHE_RBTREE, |
| .use_single_rw = true, |
| }; |
| |
| static irqreturn_t cs35l35_irq(int irq, void *data) |
| { |
| struct cs35l35_private *cs35l35 = data; |
| unsigned int sticky1, sticky2, sticky3, sticky4; |
| unsigned int mask1, mask2, mask3, mask4, current1; |
| |
| /* ack the irq by reading all status registers */ |
| regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_4, &sticky4); |
| regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_3, &sticky3); |
| regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_2, &sticky2); |
| regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_1, &sticky1); |
| |
| regmap_read(cs35l35->regmap, CS35L35_INT_MASK_4, &mask4); |
| regmap_read(cs35l35->regmap, CS35L35_INT_MASK_3, &mask3); |
| regmap_read(cs35l35->regmap, CS35L35_INT_MASK_2, &mask2); |
| regmap_read(cs35l35->regmap, CS35L35_INT_MASK_1, &mask1); |
| |
| /* Check to see if unmasked bits are active */ |
| if (!(sticky1 & ~mask1) && !(sticky2 & ~mask2) && !(sticky3 & ~mask3) |
| && !(sticky4 & ~mask4)) |
| return IRQ_NONE; |
| |
| if (sticky2 & CS35L35_PDN_DONE) |
| complete(&cs35l35->pdn_done); |
| |
| /* read the current values */ |
| regmap_read(cs35l35->regmap, CS35L35_INT_STATUS_1, ¤t1); |
| |
| /* handle the interrupts */ |
| if (sticky1 & CS35L35_CAL_ERR) { |
| dev_crit(cs35l35->dev, "Calibration Error\n"); |
| |
| /* error is no longer asserted; safe to reset */ |
| if (!(current1 & CS35L35_CAL_ERR)) { |
| pr_debug("%s : Cal error release\n", __func__); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_PROT_RELEASE_CTL, |
| CS35L35_CAL_ERR_RLS, 0); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_PROT_RELEASE_CTL, |
| CS35L35_CAL_ERR_RLS, |
| CS35L35_CAL_ERR_RLS); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_PROT_RELEASE_CTL, |
| CS35L35_CAL_ERR_RLS, 0); |
| } |
| } |
| |
| if (sticky1 & CS35L35_AMP_SHORT) { |
| dev_crit(cs35l35->dev, "AMP Short Error\n"); |
| /* error is no longer asserted; safe to reset */ |
| if (!(current1 & CS35L35_AMP_SHORT)) { |
| dev_dbg(cs35l35->dev, "Amp short error release\n"); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_PROT_RELEASE_CTL, |
| CS35L35_SHORT_RLS, 0); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_PROT_RELEASE_CTL, |
| CS35L35_SHORT_RLS, |
| CS35L35_SHORT_RLS); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_PROT_RELEASE_CTL, |
| CS35L35_SHORT_RLS, 0); |
| } |
| } |
| |
| if (sticky1 & CS35L35_OTW) { |
| dev_warn(cs35l35->dev, "Over temperature warning\n"); |
| |
| /* error is no longer asserted; safe to reset */ |
| if (!(current1 & CS35L35_OTW)) { |
| dev_dbg(cs35l35->dev, "Over temperature warn release\n"); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_PROT_RELEASE_CTL, |
| CS35L35_OTW_RLS, 0); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_PROT_RELEASE_CTL, |
| CS35L35_OTW_RLS, |
| CS35L35_OTW_RLS); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_PROT_RELEASE_CTL, |
| CS35L35_OTW_RLS, 0); |
| } |
| } |
| |
| if (sticky1 & CS35L35_OTE) { |
| dev_crit(cs35l35->dev, "Over temperature error\n"); |
| /* error is no longer asserted; safe to reset */ |
| if (!(current1 & CS35L35_OTE)) { |
| dev_dbg(cs35l35->dev, "Over temperature error release\n"); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_PROT_RELEASE_CTL, |
| CS35L35_OTE_RLS, 0); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_PROT_RELEASE_CTL, |
| CS35L35_OTE_RLS, |
| CS35L35_OTE_RLS); |
| regmap_update_bits(cs35l35->regmap, |
| CS35L35_PROT_RELEASE_CTL, |
| CS35L35_OTE_RLS, 0); |
| } |
| } |
| |
| if (sticky3 & CS35L35_BST_HIGH) { |
| dev_crit(cs35l35->dev, "VBST error: powering off!\n"); |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2, |
| CS35L35_PDN_AMP, CS35L35_PDN_AMP); |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1, |
| CS35L35_PDN_ALL, CS35L35_PDN_ALL); |
| } |
| |
| if (sticky3 & CS35L35_LBST_SHORT) { |
| dev_crit(cs35l35->dev, "LBST error: powering off!\n"); |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2, |
| CS35L35_PDN_AMP, CS35L35_PDN_AMP); |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL1, |
| CS35L35_PDN_ALL, CS35L35_PDN_ALL); |
| } |
| |
| if (sticky2 & CS35L35_VPBR_ERR) |
| dev_dbg(cs35l35->dev, "Error: Reactive Brownout\n"); |
| |
| if (sticky4 & CS35L35_VMON_OVFL) |
| dev_dbg(cs35l35->dev, "Error: VMON overflow\n"); |
| |
| if (sticky4 & CS35L35_IMON_OVFL) |
| dev_dbg(cs35l35->dev, "Error: IMON overflow\n"); |
| |
| return IRQ_HANDLED; |
| } |
| |
| |
| static int cs35l35_handle_of_data(struct i2c_client *i2c_client, |
| struct cs35l35_platform_data *pdata) |
| { |
| struct device_node *np = i2c_client->dev.of_node; |
| struct device_node *classh, *signal_format; |
| struct classh_cfg *classh_config = &pdata->classh_algo; |
| struct monitor_cfg *monitor_config = &pdata->mon_cfg; |
| unsigned int val32 = 0; |
| u8 monitor_array[4]; |
| const int imon_array_size = ARRAY_SIZE(monitor_array); |
| const int mon_array_size = imon_array_size - 1; |
| int ret = 0; |
| |
| if (!np) |
| return 0; |
| |
| pdata->bst_pdn_fet_on = of_property_read_bool(np, |
| "cirrus,boost-pdn-fet-on"); |
| |
| ret = of_property_read_u32(np, "cirrus,boost-ctl-millivolt", &val32); |
| if (ret >= 0) { |
| if (val32 < 2600 || val32 > 9000) { |
| dev_err(&i2c_client->dev, |
| "Invalid Boost Voltage %d mV\n", val32); |
| return -EINVAL; |
| } |
| pdata->bst_vctl = ((val32 - 2600) / 100) + 1; |
| } |
| |
| ret = of_property_read_u32(np, "cirrus,boost-peak-milliamp", &val32); |
| if (ret >= 0) { |
| if (val32 < 1680 || val32 > 4480) { |
| dev_err(&i2c_client->dev, |
| "Invalid Boost Peak Current %u mA\n", val32); |
| return -EINVAL; |
| } |
| |
| pdata->bst_ipk = ((val32 - 1680) / 110) | CS35L35_VALID_PDATA; |
| } |
| |
| ret = of_property_read_u32(np, "cirrus,boost-ind-nanohenry", &val32); |
| if (ret >= 0) { |
| pdata->boost_ind = val32; |
| } else { |
| dev_err(&i2c_client->dev, "Inductor not specified.\n"); |
| return -EINVAL; |
| } |
| |
| if (of_property_read_u32(np, "cirrus,sp-drv-strength", &val32) >= 0) |
| pdata->sp_drv_str = val32; |
| if (of_property_read_u32(np, "cirrus,sp-drv-unused", &val32) >= 0) |
| pdata->sp_drv_unused = val32 | CS35L35_VALID_PDATA; |
| |
| pdata->stereo = of_property_read_bool(np, "cirrus,stereo-config"); |
| |
| if (pdata->stereo) { |
| ret = of_property_read_u32(np, "cirrus,audio-channel", &val32); |
| if (ret >= 0) |
| pdata->aud_channel = val32; |
| |
| ret = of_property_read_u32(np, "cirrus,advisory-channel", |
| &val32); |
| if (ret >= 0) |
| pdata->adv_channel = val32; |
| |
| pdata->shared_bst = of_property_read_bool(np, |
| "cirrus,shared-boost"); |
| } |
| |
| pdata->ext_bst = of_property_read_bool(np, "cirrus,external-boost"); |
| |
| pdata->gain_zc = of_property_read_bool(np, "cirrus,amp-gain-zc"); |
| |
| classh = of_get_child_by_name(np, "cirrus,classh-internal-algo"); |
| classh_config->classh_algo_enable = classh ? true : false; |
| |
| if (classh_config->classh_algo_enable) { |
| classh_config->classh_bst_override = |
| of_property_read_bool(np, "cirrus,classh-bst-overide"); |
| |
| ret = of_property_read_u32(classh, |
| "cirrus,classh-bst-max-limit", |
| &val32); |
| if (ret >= 0) { |
| val32 |= CS35L35_VALID_PDATA; |
| classh_config->classh_bst_max_limit = val32; |
| } |
| |
| ret = of_property_read_u32(classh, |
| "cirrus,classh-bst-max-limit", |
| &val32); |
| if (ret >= 0) { |
| val32 |= CS35L35_VALID_PDATA; |
| classh_config->classh_bst_max_limit = val32; |
| } |
| |
| ret = of_property_read_u32(classh, "cirrus,classh-mem-depth", |
| &val32); |
| if (ret >= 0) { |
| val32 |= CS35L35_VALID_PDATA; |
| classh_config->classh_mem_depth = val32; |
| } |
| |
| ret = of_property_read_u32(classh, "cirrus,classh-release-rate", |
| &val32); |
| if (ret >= 0) |
| classh_config->classh_release_rate = val32; |
| |
| ret = of_property_read_u32(classh, "cirrus,classh-headroom", |
| &val32); |
| if (ret >= 0) { |
| val32 |= CS35L35_VALID_PDATA; |
| classh_config->classh_headroom = val32; |
| } |
| |
| ret = of_property_read_u32(classh, |
| "cirrus,classh-wk-fet-disable", |
| &val32); |
| if (ret >= 0) |
| classh_config->classh_wk_fet_disable = val32; |
| |
| ret = of_property_read_u32(classh, "cirrus,classh-wk-fet-delay", |
| &val32); |
| if (ret >= 0) { |
| val32 |= CS35L35_VALID_PDATA; |
| classh_config->classh_wk_fet_delay = val32; |
| } |
| |
| ret = of_property_read_u32(classh, "cirrus,classh-wk-fet-thld", |
| &val32); |
| if (ret >= 0) |
| classh_config->classh_wk_fet_thld = val32; |
| |
| ret = of_property_read_u32(classh, "cirrus,classh-vpch-auto", |
| &val32); |
| if (ret >= 0) { |
| val32 |= CS35L35_VALID_PDATA; |
| classh_config->classh_vpch_auto = val32; |
| } |
| |
| ret = of_property_read_u32(classh, "cirrus,classh-vpch-rate", |
| &val32); |
| if (ret >= 0) { |
| val32 |= CS35L35_VALID_PDATA; |
| classh_config->classh_vpch_rate = val32; |
| } |
| |
| ret = of_property_read_u32(classh, "cirrus,classh-vpch-man", |
| &val32); |
| if (ret >= 0) |
| classh_config->classh_vpch_man = val32; |
| } |
| of_node_put(classh); |
| |
| /* frame depth location */ |
| signal_format = of_get_child_by_name(np, "cirrus,monitor-signal-format"); |
| monitor_config->is_present = signal_format ? true : false; |
| if (monitor_config->is_present) { |
| ret = of_property_read_u8_array(signal_format, "cirrus,imon", |
| monitor_array, imon_array_size); |
| if (!ret) { |
| monitor_config->imon_specs = true; |
| monitor_config->imon_dpth = monitor_array[0]; |
| monitor_config->imon_loc = monitor_array[1]; |
| monitor_config->imon_frm = monitor_array[2]; |
| monitor_config->imon_scale = monitor_array[3]; |
| } |
| ret = of_property_read_u8_array(signal_format, "cirrus,vmon", |
| monitor_array, mon_array_size); |
| if (!ret) { |
| monitor_config->vmon_specs = true; |
| monitor_config->vmon_dpth = monitor_array[0]; |
| monitor_config->vmon_loc = monitor_array[1]; |
| monitor_config->vmon_frm = monitor_array[2]; |
| } |
| ret = of_property_read_u8_array(signal_format, "cirrus,vpmon", |
| monitor_array, mon_array_size); |
| if (!ret) { |
| monitor_config->vpmon_specs = true; |
| monitor_config->vpmon_dpth = monitor_array[0]; |
| monitor_config->vpmon_loc = monitor_array[1]; |
| monitor_config->vpmon_frm = monitor_array[2]; |
| } |
| ret = of_property_read_u8_array(signal_format, "cirrus,vbstmon", |
| monitor_array, mon_array_size); |
| if (!ret) { |
| monitor_config->vbstmon_specs = true; |
| monitor_config->vbstmon_dpth = monitor_array[0]; |
| monitor_config->vbstmon_loc = monitor_array[1]; |
| monitor_config->vbstmon_frm = monitor_array[2]; |
| } |
| ret = of_property_read_u8_array(signal_format, "cirrus,vpbrstat", |
| monitor_array, mon_array_size); |
| if (!ret) { |
| monitor_config->vpbrstat_specs = true; |
| monitor_config->vpbrstat_dpth = monitor_array[0]; |
| monitor_config->vpbrstat_loc = monitor_array[1]; |
| monitor_config->vpbrstat_frm = monitor_array[2]; |
| } |
| ret = of_property_read_u8_array(signal_format, "cirrus,zerofill", |
| monitor_array, mon_array_size); |
| if (!ret) { |
| monitor_config->zerofill_specs = true; |
| monitor_config->zerofill_dpth = monitor_array[0]; |
| monitor_config->zerofill_loc = monitor_array[1]; |
| monitor_config->zerofill_frm = monitor_array[2]; |
| } |
| } |
| of_node_put(signal_format); |
| |
| return 0; |
| } |
| |
| /* Errata Rev A0 */ |
| static const struct reg_sequence cs35l35_errata_patch[] = { |
| |
| { 0x7F, 0x99 }, |
| { 0x00, 0x99 }, |
| { 0x52, 0x22 }, |
| { 0x04, 0x14 }, |
| { 0x6D, 0x44 }, |
| { 0x24, 0x10 }, |
| { 0x58, 0xC4 }, |
| { 0x00, 0x98 }, |
| { 0x18, 0x08 }, |
| { 0x00, 0x00 }, |
| { 0x7F, 0x00 }, |
| }; |
| |
| static int cs35l35_i2c_probe(struct i2c_client *i2c_client, |
| const struct i2c_device_id *id) |
| { |
| struct cs35l35_private *cs35l35; |
| struct device *dev = &i2c_client->dev; |
| struct cs35l35_platform_data *pdata = dev_get_platdata(dev); |
| int i; |
| int ret; |
| unsigned int devid = 0; |
| unsigned int reg; |
| |
| cs35l35 = devm_kzalloc(dev, sizeof(struct cs35l35_private), GFP_KERNEL); |
| if (!cs35l35) |
| return -ENOMEM; |
| |
| cs35l35->dev = dev; |
| |
| i2c_set_clientdata(i2c_client, cs35l35); |
| cs35l35->regmap = devm_regmap_init_i2c(i2c_client, &cs35l35_regmap); |
| if (IS_ERR(cs35l35->regmap)) { |
| ret = PTR_ERR(cs35l35->regmap); |
| dev_err(dev, "regmap_init() failed: %d\n", ret); |
| goto err; |
| } |
| |
| for (i = 0; i < ARRAY_SIZE(cs35l35_supplies); i++) |
| cs35l35->supplies[i].supply = cs35l35_supplies[i]; |
| |
| cs35l35->num_supplies = ARRAY_SIZE(cs35l35_supplies); |
| |
| ret = devm_regulator_bulk_get(dev, cs35l35->num_supplies, |
| cs35l35->supplies); |
| if (ret != 0) { |
| dev_err(dev, "Failed to request core supplies: %d\n", ret); |
| return ret; |
| } |
| |
| if (pdata) { |
| cs35l35->pdata = *pdata; |
| } else { |
| pdata = devm_kzalloc(dev, sizeof(struct cs35l35_platform_data), |
| GFP_KERNEL); |
| if (!pdata) |
| return -ENOMEM; |
| if (i2c_client->dev.of_node) { |
| ret = cs35l35_handle_of_data(i2c_client, pdata); |
| if (ret != 0) |
| return ret; |
| |
| } |
| cs35l35->pdata = *pdata; |
| } |
| |
| ret = regulator_bulk_enable(cs35l35->num_supplies, |
| cs35l35->supplies); |
| if (ret != 0) { |
| dev_err(dev, "Failed to enable core supplies: %d\n", ret); |
| return ret; |
| } |
| |
| /* returning NULL can be valid if in stereo mode */ |
| cs35l35->reset_gpio = devm_gpiod_get_optional(dev, "reset", |
| GPIOD_OUT_LOW); |
| if (IS_ERR(cs35l35->reset_gpio)) { |
| ret = PTR_ERR(cs35l35->reset_gpio); |
| cs35l35->reset_gpio = NULL; |
| if (ret == -EBUSY) { |
| dev_info(dev, |
| "Reset line busy, assuming shared reset\n"); |
| } else { |
| dev_err(dev, "Failed to get reset GPIO: %d\n", ret); |
| goto err; |
| } |
| } |
| |
| cs35l35_reset(cs35l35); |
| |
| init_completion(&cs35l35->pdn_done); |
| |
| ret = devm_request_threaded_irq(dev, i2c_client->irq, NULL, cs35l35_irq, |
| IRQF_ONESHOT | IRQF_TRIGGER_LOW | |
| IRQF_SHARED, "cs35l35", cs35l35); |
| if (ret != 0) { |
| dev_err(dev, "Failed to request IRQ: %d\n", ret); |
| goto err; |
| } |
| /* initialize codec */ |
| ret = regmap_read(cs35l35->regmap, CS35L35_DEVID_AB, ®); |
| |
| devid = (reg & 0xFF) << 12; |
| ret = regmap_read(cs35l35->regmap, CS35L35_DEVID_CD, ®); |
| devid |= (reg & 0xFF) << 4; |
| ret = regmap_read(cs35l35->regmap, CS35L35_DEVID_E, ®); |
| devid |= (reg & 0xF0) >> 4; |
| |
| if (devid != CS35L35_CHIP_ID) { |
| dev_err(dev, "CS35L35 Device ID (%X). Expected ID %X\n", |
| devid, CS35L35_CHIP_ID); |
| ret = -ENODEV; |
| goto err; |
| } |
| |
| ret = regmap_read(cs35l35->regmap, CS35L35_REV_ID, ®); |
| if (ret < 0) { |
| dev_err(dev, "Get Revision ID failed: %d\n", ret); |
| goto err; |
| } |
| |
| ret = regmap_register_patch(cs35l35->regmap, cs35l35_errata_patch, |
| ARRAY_SIZE(cs35l35_errata_patch)); |
| if (ret < 0) { |
| dev_err(dev, "Failed to apply errata patch: %d\n", ret); |
| goto err; |
| } |
| |
| dev_info(dev, "Cirrus Logic CS35L35 (%x), Revision: %02X\n", |
| devid, reg & 0xFF); |
| |
| /* Set the INT Masks for critical errors */ |
| regmap_write(cs35l35->regmap, CS35L35_INT_MASK_1, |
| CS35L35_INT1_CRIT_MASK); |
| regmap_write(cs35l35->regmap, CS35L35_INT_MASK_2, |
| CS35L35_INT2_CRIT_MASK); |
| regmap_write(cs35l35->regmap, CS35L35_INT_MASK_3, |
| CS35L35_INT3_CRIT_MASK); |
| regmap_write(cs35l35->regmap, CS35L35_INT_MASK_4, |
| CS35L35_INT4_CRIT_MASK); |
| |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2, |
| CS35L35_PWR2_PDN_MASK, |
| CS35L35_PWR2_PDN_MASK); |
| |
| if (cs35l35->pdata.bst_pdn_fet_on) |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2, |
| CS35L35_PDN_BST_MASK, |
| 1 << CS35L35_PDN_BST_FETON_SHIFT); |
| else |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL2, |
| CS35L35_PDN_BST_MASK, |
| 1 << CS35L35_PDN_BST_FETOFF_SHIFT); |
| |
| regmap_update_bits(cs35l35->regmap, CS35L35_PWRCTL3, |
| CS35L35_PWR3_PDN_MASK, |
| CS35L35_PWR3_PDN_MASK); |
| |
| regmap_update_bits(cs35l35->regmap, CS35L35_PROTECT_CTL, |
| CS35L35_AMP_MUTE_MASK, 1 << CS35L35_AMP_MUTE_SHIFT); |
| |
| ret = devm_snd_soc_register_component(dev, &soc_component_dev_cs35l35, |
| cs35l35_dai, ARRAY_SIZE(cs35l35_dai)); |
| if (ret < 0) { |
| dev_err(dev, "Failed to register component: %d\n", ret); |
| goto err; |
| } |
| |
| return 0; |
| |
| err: |
| regulator_bulk_disable(cs35l35->num_supplies, |
| cs35l35->supplies); |
| gpiod_set_value_cansleep(cs35l35->reset_gpio, 0); |
| |
| return ret; |
| } |
| |
| static int cs35l35_i2c_remove(struct i2c_client *i2c_client) |
| { |
| struct cs35l35_private *cs35l35 = i2c_get_clientdata(i2c_client); |
| |
| regulator_bulk_disable(cs35l35->num_supplies, cs35l35->supplies); |
| gpiod_set_value_cansleep(cs35l35->reset_gpio, 0); |
| |
| return 0; |
| } |
| |
| static const struct of_device_id cs35l35_of_match[] = { |
| {.compatible = "cirrus,cs35l35"}, |
| {}, |
| }; |
| MODULE_DEVICE_TABLE(of, cs35l35_of_match); |
| |
| static const struct i2c_device_id cs35l35_id[] = { |
| {"cs35l35", 0}, |
| {} |
| }; |
| |
| MODULE_DEVICE_TABLE(i2c, cs35l35_id); |
| |
| static struct i2c_driver cs35l35_i2c_driver = { |
| .driver = { |
| .name = "cs35l35", |
| .of_match_table = cs35l35_of_match, |
| }, |
| .id_table = cs35l35_id, |
| .probe = cs35l35_i2c_probe, |
| .remove = cs35l35_i2c_remove, |
| }; |
| |
| module_i2c_driver(cs35l35_i2c_driver); |
| |
| MODULE_DESCRIPTION("ASoC CS35L35 driver"); |
| MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>"); |
| MODULE_LICENSE("GPL"); |
