diff options
Diffstat (limited to 'sound/soc/codecs/rt1308.c')
| -rw-r--r-- | sound/soc/codecs/rt1308.c | 873 |
1 files changed, 873 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt1308.c b/sound/soc/codecs/rt1308.c new file mode 100644 index 000000000..d2a8e9fe3 --- /dev/null +++ b/sound/soc/codecs/rt1308.c @@ -0,0 +1,873 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// rt1308.c -- RT1308 ALSA SoC amplifier component driver +// +// Copyright 2019 Realtek Semiconductor Corp. +// Author: Derek Fang <derek.fang@realtek.com> +// + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/gpio.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/of_gpio.h> +#include <linux/acpi.h> +#include <linux/platform_device.h> +#include <linux/firmware.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/initval.h> +#include <sound/tlv.h> + +#include "rl6231.h" +#include "rt1308.h" + +static const struct reg_sequence init_list[] = { + + { RT1308_I2C_I2S_SDW_SET, 0x01014005 }, + { RT1308_CLASS_D_SET_2, 0x227f5501 }, + { RT1308_PADS_1, 0x50150505 }, + { RT1308_VREF, 0x18100000 }, + { RT1308_IV_SENSE, 0x87010000 }, + { RT1308_DUMMY_REG, 0x00000200 }, + { RT1308_SIL_DET, 0xe1c30000 }, + { RT1308_DC_CAL_2, 0x00ffff00 }, + { RT1308_CLK_DET, 0x01000000 }, + { RT1308_POWER_STATUS, 0x08800000 }, + { RT1308_DAC_SET, 0xafaf0700 }, + +}; +#define RT1308_INIT_REG_LEN ARRAY_SIZE(init_list) + +struct rt1308_priv { + struct snd_soc_component *component; + struct regmap *regmap; + + int sysclk; + int sysclk_src; + int lrck; + int bclk; + int master; + + int pll_src; + int pll_in; + int pll_out; +}; + +static const struct reg_default rt1308_reg[] = { + + { 0x01, 0x1f3f5f00 }, + { 0x02, 0x07000000 }, + { 0x03, 0x80003e00 }, + { 0x04, 0x80800600 }, + { 0x05, 0x0aaa1a0a }, + { 0x06, 0x52000000 }, + { 0x07, 0x00000000 }, + { 0x08, 0x00600000 }, + { 0x09, 0xe1030000 }, + { 0x0a, 0x00000000 }, + { 0x0b, 0x30000000 }, + { 0x0c, 0x7fff7000 }, + { 0x10, 0xffff0700 }, + { 0x11, 0x0a000000 }, + { 0x12, 0x60040000 }, + { 0x13, 0x00000000 }, + { 0x14, 0x0f300000 }, + { 0x15, 0x00000022 }, + { 0x16, 0x02000000 }, + { 0x17, 0x01004045 }, + { 0x18, 0x00000000 }, + { 0x19, 0x00000000 }, + { 0x1a, 0x80000000 }, + { 0x1b, 0x10325476 }, + { 0x1c, 0x1d1d0000 }, + { 0x20, 0xd2101300 }, + { 0x21, 0xf3ffff00 }, + { 0x22, 0x00000000 }, + { 0x23, 0x00000000 }, + { 0x24, 0x00000000 }, + { 0x25, 0x00000000 }, + { 0x26, 0x00000000 }, + { 0x27, 0x00000000 }, + { 0x28, 0x00000000 }, + { 0x29, 0x00000000 }, + { 0x2a, 0x00000000 }, + { 0x2b, 0x00000000 }, + { 0x2c, 0x00000000 }, + { 0x2d, 0x00000000 }, + { 0x2e, 0x00000000 }, + { 0x2f, 0x00000000 }, + { 0x30, 0x01000000 }, + { 0x31, 0x20025501 }, + { 0x32, 0x00000000 }, + { 0x33, 0x105a0000 }, + { 0x34, 0x10100000 }, + { 0x35, 0x2aaa52aa }, + { 0x36, 0x00c00000 }, + { 0x37, 0x20046100 }, + { 0x50, 0x10022f00 }, + { 0x51, 0x003c0000 }, + { 0x54, 0x04000000 }, + { 0x55, 0x01000000 }, + { 0x56, 0x02000000 }, + { 0x57, 0x02000000 }, + { 0x58, 0x02000000 }, + { 0x59, 0x02000000 }, + { 0x5b, 0x02000000 }, + { 0x5c, 0x00000000 }, + { 0x5d, 0x00000000 }, + { 0x5e, 0x00000000 }, + { 0x5f, 0x00000000 }, + { 0x60, 0x02000000 }, + { 0x61, 0x00000000 }, + { 0x62, 0x00000000 }, + { 0x63, 0x00000000 }, + { 0x64, 0x00000000 }, + { 0x65, 0x02000000 }, + { 0x66, 0x00000000 }, + { 0x67, 0x00000000 }, + { 0x68, 0x00000000 }, + { 0x69, 0x00000000 }, + { 0x6a, 0x02000000 }, + { 0x6c, 0x00000000 }, + { 0x6d, 0x00000000 }, + { 0x6e, 0x00000000 }, + { 0x70, 0x10EC1308 }, + { 0x71, 0x00000000 }, + { 0x72, 0x00000000 }, + { 0x73, 0x00000000 }, + { 0x74, 0x00000000 }, + { 0x75, 0x00000000 }, + { 0x76, 0x00000000 }, + { 0x77, 0x00000000 }, + { 0x78, 0x00000000 }, + { 0x79, 0x00000000 }, + { 0x7a, 0x00000000 }, + { 0x7b, 0x00000000 }, + { 0x7c, 0x00000000 }, + { 0x7d, 0x00000000 }, + { 0x7e, 0x00000000 }, + { 0x7f, 0x00020f00 }, + { 0x80, 0x00000000 }, + { 0x81, 0x00000000 }, + { 0x82, 0x00000000 }, + { 0x83, 0x00000000 }, + { 0x84, 0x00000000 }, + { 0x85, 0x00000000 }, + { 0x86, 0x00000000 }, + { 0x87, 0x00000000 }, + { 0x88, 0x00000000 }, + { 0x89, 0x00000000 }, + { 0x8a, 0x00000000 }, + { 0x8b, 0x00000000 }, + { 0x8c, 0x00000000 }, + { 0x8d, 0x00000000 }, + { 0x8e, 0x00000000 }, + { 0x90, 0x50250905 }, + { 0x91, 0x15050000 }, + { 0xa0, 0x00000000 }, + { 0xa1, 0x00000000 }, + { 0xa2, 0x00000000 }, + { 0xa3, 0x00000000 }, + { 0xa4, 0x00000000 }, + { 0xb0, 0x00000000 }, + { 0xb1, 0x00000000 }, + { 0xb2, 0x00000000 }, + { 0xb3, 0x00000000 }, + { 0xb4, 0x00000000 }, + { 0xb5, 0x00000000 }, + { 0xb6, 0x00000000 }, + { 0xb7, 0x00000000 }, + { 0xb8, 0x00000000 }, + { 0xb9, 0x00000000 }, + { 0xba, 0x00000000 }, + { 0xbb, 0x00000000 }, + { 0xc0, 0x01000000 }, + { 0xc1, 0x00000000 }, + { 0xf0, 0x00000000 }, +}; + +static int rt1308_reg_init(struct snd_soc_component *component) +{ + struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); + + return regmap_multi_reg_write(rt1308->regmap, init_list, + RT1308_INIT_REG_LEN); +} + +static bool rt1308_volatile_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case RT1308_RESET: + case RT1308_RESET_N: + case RT1308_CLK_2: + case RT1308_SIL_DET: + case RT1308_CLK_DET: + case RT1308_DC_DET: + case RT1308_DAC_SET: + case RT1308_DAC_BUF: + case RT1308_SDW_REG_RDATA: + case RT1308_DC_CAL_1: + case RT1308_PVDD_OFFSET_CTL: + case RT1308_CAL_OFFSET_DAC_PBTL: + case RT1308_CAL_OFFSET_DAC_L: + case RT1308_CAL_OFFSET_DAC_R: + case RT1308_CAL_OFFSET_PWM_L: + case RT1308_CAL_OFFSET_PWM_R: + case RT1308_CAL_PWM_VOS_ADC_L: + case RT1308_CAL_PWM_VOS_ADC_R: + case RT1308_MBIAS: + case RT1308_POWER_STATUS: + case RT1308_POWER_INT: + case RT1308_SINE_TONE_GEN_2: + case RT1308_BQ_SET: + case RT1308_BQ_PARA_UPDATE: + case RT1308_VEN_DEV_ID: + case RT1308_VERSION_ID: + case RT1308_EFUSE_1: + case RT1308_EFUSE_READ_PVDD_L: + case RT1308_EFUSE_READ_PVDD_R: + case RT1308_EFUSE_READ_PVDD_PTBL: + case RT1308_EFUSE_READ_DEV: + case RT1308_EFUSE_READ_R0: + case RT1308_EFUSE_READ_ADC_L: + case RT1308_EFUSE_READ_ADC_R: + case RT1308_EFUSE_READ_ADC_PBTL: + case RT1308_EFUSE_RESERVE: + case RT1308_EFUSE_DATA_0_MSB: + case RT1308_EFUSE_DATA_0_LSB: + case RT1308_EFUSE_DATA_1_MSB: + case RT1308_EFUSE_DATA_1_LSB: + case RT1308_EFUSE_DATA_2_MSB: + case RT1308_EFUSE_DATA_2_LSB: + case RT1308_EFUSE_DATA_3_MSB: + case RT1308_EFUSE_DATA_3_LSB: + case RT1308_EFUSE_STATUS_1: + case RT1308_EFUSE_STATUS_2: + case RT1308_DUMMY_REG: + return true; + default: + return false; + } +} + +static bool rt1308_readable_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case RT1308_RESET: + case RT1308_RESET_N: + case RT1308_CLK_GATING ... RT1308_DC_DET_THRES: + case RT1308_DAC_SET ... RT1308_AD_FILTER_SET: + case RT1308_DC_CAL_1 ... RT1308_POWER_INT: + case RT1308_SINE_TONE_GEN_1: + case RT1308_SINE_TONE_GEN_2: + case RT1308_BQ_SET: + case RT1308_BQ_PARA_UPDATE: + case RT1308_BQ_PRE_VOL_L ... RT1308_BQ_POST_VOL_R: + case RT1308_BQ1_L_H0 ... RT1308_BQ2_R_A2: + case RT1308_VEN_DEV_ID: + case RT1308_VERSION_ID: + case RT1308_SPK_BOUND: + case RT1308_BQ1_EQ_L_1 ... RT1308_BQ2_EQ_R_3: + case RT1308_EFUSE_1 ... RT1308_EFUSE_RESERVE: + case RT1308_PADS_1: + case RT1308_PADS_2: + case RT1308_TEST_MODE: + case RT1308_TEST_1: + case RT1308_TEST_2: + case RT1308_TEST_3: + case RT1308_TEST_4: + case RT1308_EFUSE_DATA_0_MSB ... RT1308_EFUSE_STATUS_2: + case RT1308_TCON_1: + case RT1308_TCON_2: + case RT1308_DUMMY_REG: + case RT1308_MAX_REG: + return true; + default: + return false; + } +} + +static int rt1308_classd_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); + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + msleep(30); + snd_soc_component_update_bits(component, RT1308_POWER_STATUS, + RT1308_POW_PDB_REG_BIT | RT1308_POW_PDB_MN_BIT, + RT1308_POW_PDB_REG_BIT | RT1308_POW_PDB_MN_BIT); + msleep(40); + break; + case SND_SOC_DAPM_PRE_PMD: + snd_soc_component_update_bits(component, RT1308_POWER_STATUS, + RT1308_POW_PDB_REG_BIT | RT1308_POW_PDB_MN_BIT, 0); + usleep_range(150000, 200000); + break; + + default: + break; + } + + return 0; +} + +static const char * const rt1308_rx_data_ch_select[] = { + "LR", + "LL", + "RL", + "RR", +}; + +static SOC_ENUM_SINGLE_DECL(rt1308_rx_data_ch_enum, RT1308_DATA_PATH, 24, + rt1308_rx_data_ch_select); + +static const struct snd_kcontrol_new rt1308_snd_controls[] = { + + /* I2S Data Channel Selection */ + SOC_ENUM("RX Channel Select", rt1308_rx_data_ch_enum), +}; + +static const struct snd_kcontrol_new rt1308_sto_dac_l = + SOC_DAPM_SINGLE("Switch", RT1308_DAC_SET, + RT1308_DVOL_MUTE_L_EN_SFT, 1, 1); + +static const struct snd_kcontrol_new rt1308_sto_dac_r = + SOC_DAPM_SINGLE("Switch", RT1308_DAC_SET, + RT1308_DVOL_MUTE_R_EN_SFT, 1, 1); + +static const struct snd_soc_dapm_widget rt1308_dapm_widgets[] = { + /* Audio Interface */ + SND_SOC_DAPM_AIF_IN("AIF1RX", "AIF1 Playback", 0, SND_SOC_NOPM, 0, 0), + + /* Supply Widgets */ + SND_SOC_DAPM_SUPPLY("MBIAS20U", RT1308_POWER, + RT1308_POW_MBIAS20U_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ALDO", RT1308_POWER, + RT1308_POW_ALDO_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("DBG", RT1308_POWER, + RT1308_POW_DBG_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("DACL", RT1308_POWER, + RT1308_POW_DACL_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("CLK25M", RT1308_POWER, + RT1308_POW_CLK25M_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC_R", RT1308_POWER, + RT1308_POW_ADC_R_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("ADC_L", RT1308_POWER, + RT1308_POW_ADC_L_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("DLDO", RT1308_POWER, + RT1308_POW_DLDO_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("VREF", RT1308_POWER, + RT1308_POW_VREF_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("MIXER_R", RT1308_POWER, + RT1308_POW_MIXER_R_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("MIXER_L", RT1308_POWER, + RT1308_POW_MIXER_L_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("MBIAS4U", RT1308_POWER, + RT1308_POW_MBIAS4U_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("PLL2_LDO", RT1308_POWER, + RT1308_POW_PLL2_LDO_EN_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("PLL2B", RT1308_POWER, + RT1308_POW_PLL2B_EN_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("PLL2F", RT1308_POWER, + RT1308_POW_PLL2F_EN_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("PLL2F2", RT1308_POWER, + RT1308_POW_PLL2F2_EN_BIT, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("PLL2B2", RT1308_POWER, + RT1308_POW_PLL2B2_EN_BIT, 0, NULL, 0), + + /* Digital Interface */ + SND_SOC_DAPM_SUPPLY("DAC Power", RT1308_POWER, + RT1308_POW_DAC1_BIT, 0, NULL, 0), + SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_SWITCH("DAC L", SND_SOC_NOPM, 0, 0, &rt1308_sto_dac_l), + SND_SOC_DAPM_SWITCH("DAC R", SND_SOC_NOPM, 0, 0, &rt1308_sto_dac_r), + + /* Output Lines */ + SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0, + rt1308_classd_event, + SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), + SND_SOC_DAPM_OUTPUT("SPOL"), + SND_SOC_DAPM_OUTPUT("SPOR"), +}; + +static const struct snd_soc_dapm_route rt1308_dapm_routes[] = { + + { "DAC", NULL, "AIF1RX" }, + + { "DAC", NULL, "MBIAS20U" }, + { "DAC", NULL, "ALDO" }, + { "DAC", NULL, "DBG" }, + { "DAC", NULL, "DACL" }, + { "DAC", NULL, "CLK25M" }, + { "DAC", NULL, "ADC_R" }, + { "DAC", NULL, "ADC_L" }, + { "DAC", NULL, "DLDO" }, + { "DAC", NULL, "VREF" }, + { "DAC", NULL, "MIXER_R" }, + { "DAC", NULL, "MIXER_L" }, + { "DAC", NULL, "MBIAS4U" }, + { "DAC", NULL, "PLL2_LDO" }, + { "DAC", NULL, "PLL2B" }, + { "DAC", NULL, "PLL2F" }, + { "DAC", NULL, "PLL2F2" }, + { "DAC", NULL, "PLL2B2" }, + + { "DAC L", "Switch", "DAC" }, + { "DAC R", "Switch", "DAC" }, + { "DAC L", NULL, "DAC Power" }, + { "DAC R", NULL, "DAC Power" }, + + { "CLASS D", NULL, "DAC L" }, + { "CLASS D", NULL, "DAC R" }, + { "SPOL", NULL, "CLASS D" }, + { "SPOR", NULL, "CLASS D" }, +}; + +static int rt1308_get_clk_info(int sclk, int rate) +{ + int i; + static const int pd[] = {1, 2, 3, 4, 6, 8, 12, 16}; + + if (sclk <= 0 || rate <= 0) + return -EINVAL; + + rate = rate << 8; + for (i = 0; i < ARRAY_SIZE(pd); i++) + if (sclk == rate * pd[i]) + return i; + + return -EINVAL; +} + +static int rt1308_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 rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); + unsigned int val_len = 0, val_clk, mask_clk; + int pre_div, bclk_ms, frame_size; + + rt1308->lrck = params_rate(params); + pre_div = rt1308_get_clk_info(rt1308->sysclk, rt1308->lrck); + if (pre_div < 0) { + dev_err(component->dev, + "Unsupported clock setting %d\n", rt1308->lrck); + return -EINVAL; + } + + frame_size = snd_soc_params_to_frame_size(params); + if (frame_size < 0) { + dev_err(component->dev, "Unsupported frame size: %d\n", + frame_size); + return -EINVAL; + } + + bclk_ms = frame_size > 32; + rt1308->bclk = rt1308->lrck * (32 << bclk_ms); + + dev_dbg(component->dev, "bclk_ms is %d and pre_div is %d for iis %d\n", + bclk_ms, pre_div, dai->id); + + dev_dbg(component->dev, "lrck is %dHz and pre_div is %d for iis %d\n", + rt1308->lrck, pre_div, dai->id); + + switch (params_width(params)) { + case 16: + val_len |= RT1308_I2S_DL_SEL_16B; + break; + case 20: + val_len |= RT1308_I2S_DL_SEL_20B; + break; + case 24: + val_len |= RT1308_I2S_DL_SEL_24B; + break; + case 8: + val_len |= RT1308_I2S_DL_SEL_8B; + break; + default: + return -EINVAL; + } + + switch (dai->id) { + case RT1308_AIF1: + mask_clk = RT1308_DIV_FS_SYS_MASK; + val_clk = pre_div << RT1308_DIV_FS_SYS_SFT; + snd_soc_component_update_bits(component, + RT1308_I2S_SET_2, RT1308_I2S_DL_SEL_MASK, + val_len); + break; + default: + dev_err(component->dev, "Invalid dai->id: %d\n", dai->id); + return -EINVAL; + } + + snd_soc_component_update_bits(component, RT1308_CLK_1, + mask_clk, val_clk); + + return 0; +} + +static int rt1308_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_component *component = dai->component; + struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); + unsigned int reg_val = 0, reg1_val = 0; + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + rt1308->master = 0; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + break; + case SND_SOC_DAIFMT_LEFT_J: + reg_val |= RT1308_I2S_DF_SEL_LEFT; + break; + case SND_SOC_DAIFMT_DSP_A: + reg_val |= RT1308_I2S_DF_SEL_PCM_A; + break; + case SND_SOC_DAIFMT_DSP_B: + reg_val |= RT1308_I2S_DF_SEL_PCM_B; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_NF: + reg1_val |= RT1308_I2S_BCLK_INV; + break; + default: + return -EINVAL; + } + + switch (dai->id) { + case RT1308_AIF1: + snd_soc_component_update_bits(component, + RT1308_I2S_SET_1, RT1308_I2S_DF_SEL_MASK, + reg_val); + snd_soc_component_update_bits(component, + RT1308_I2S_SET_2, RT1308_I2S_BCLK_MASK, + reg1_val); + break; + default: + dev_err(component->dev, "Invalid dai->id: %d\n", dai->id); + return -EINVAL; + } + return 0; +} + +static int rt1308_set_component_sysclk(struct snd_soc_component *component, + int clk_id, int source, unsigned int freq, int dir) +{ + struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); + unsigned int reg_val = 0; + + if (freq == rt1308->sysclk && clk_id == rt1308->sysclk_src) + return 0; + + switch (clk_id) { + case RT1308_FS_SYS_S_MCLK: + reg_val |= RT1308_SEL_FS_SYS_SRC_MCLK; + snd_soc_component_update_bits(component, + RT1308_CLK_DET, RT1308_MCLK_DET_EN_MASK, + RT1308_MCLK_DET_EN); + break; + case RT1308_FS_SYS_S_BCLK: + reg_val |= RT1308_SEL_FS_SYS_SRC_BCLK; + break; + case RT1308_FS_SYS_S_PLL: + reg_val |= RT1308_SEL_FS_SYS_SRC_PLL; + break; + case RT1308_FS_SYS_S_RCCLK: + reg_val |= RT1308_SEL_FS_SYS_SRC_RCCLK; + break; + default: + dev_err(component->dev, "Invalid clock id (%d)\n", clk_id); + return -EINVAL; + } + snd_soc_component_update_bits(component, RT1308_CLK_1, + RT1308_SEL_FS_SYS_MASK, reg_val); + rt1308->sysclk = freq; + rt1308->sysclk_src = clk_id; + + dev_dbg(component->dev, "Sysclk is %dHz and clock id is %d\n", + freq, clk_id); + + return 0; +} + +static int rt1308_set_component_pll(struct snd_soc_component *component, + int pll_id, int source, unsigned int freq_in, + unsigned int freq_out) +{ + struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); + struct rl6231_pll_code pll_code; + int ret; + + if (source == rt1308->pll_src && freq_in == rt1308->pll_in && + freq_out == rt1308->pll_out) + return 0; + + if (!freq_in || !freq_out) { + dev_dbg(component->dev, "PLL disabled\n"); + + rt1308->pll_in = 0; + rt1308->pll_out = 0; + snd_soc_component_update_bits(component, + RT1308_CLK_1, RT1308_SEL_FS_SYS_MASK, + RT1308_SEL_FS_SYS_SRC_MCLK); + return 0; + } + + switch (source) { + case RT1308_PLL_S_MCLK: + snd_soc_component_update_bits(component, + RT1308_CLK_2, RT1308_SEL_PLL_SRC_MASK, + RT1308_SEL_PLL_SRC_MCLK); + snd_soc_component_update_bits(component, + RT1308_CLK_DET, RT1308_MCLK_DET_EN_MASK, + RT1308_MCLK_DET_EN); + break; + case RT1308_PLL_S_BCLK: + snd_soc_component_update_bits(component, + RT1308_CLK_2, RT1308_SEL_PLL_SRC_MASK, + RT1308_SEL_PLL_SRC_BCLK); + break; + case RT1308_PLL_S_RCCLK: + snd_soc_component_update_bits(component, + RT1308_CLK_2, RT1308_SEL_PLL_SRC_MASK, + RT1308_SEL_PLL_SRC_RCCLK); + freq_in = 25000000; + break; + default: + dev_err(component->dev, "Unknown PLL Source %d\n", source); + return -EINVAL; + } + + ret = rl6231_pll_calc(freq_in, freq_out, &pll_code); + if (ret < 0) { + dev_err(component->dev, "Unsupported input clock %d\n", freq_in); + return ret; + } + + dev_dbg(component->dev, "bypass=%d m=%d n=%d k=%d\n", + pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code), + pll_code.n_code, pll_code.k_code); + + snd_soc_component_write(component, RT1308_PLL_1, + (pll_code.k_code << RT1308_PLL1_K_SFT) | + (pll_code.m_bp << RT1308_PLL1_M_BYPASS_SFT) | + ((pll_code.m_bp ? 0 : pll_code.m_code) << RT1308_PLL1_M_SFT) | + (pll_code.n_code << RT1308_PLL1_N_SFT)); + + rt1308->pll_in = freq_in; + rt1308->pll_out = freq_out; + rt1308->pll_src = source; + + return 0; +} + +static int rt1308_probe(struct snd_soc_component *component) +{ + struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); + + rt1308->component = component; + + return rt1308_reg_init(component); +} + +static void rt1308_remove(struct snd_soc_component *component) +{ + struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); + + regmap_write(rt1308->regmap, RT1308_RESET, 0); +} + +#ifdef CONFIG_PM +static int rt1308_suspend(struct snd_soc_component *component) +{ + struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); + + regcache_cache_only(rt1308->regmap, true); + regcache_mark_dirty(rt1308->regmap); + + return 0; +} + +static int rt1308_resume(struct snd_soc_component *component) +{ + struct rt1308_priv *rt1308 = snd_soc_component_get_drvdata(component); + + regcache_cache_only(rt1308->regmap, false); + regcache_sync(rt1308->regmap); + + return 0; +} +#else +#define rt1308_suspend NULL +#define rt1308_resume NULL +#endif + +#define RT1308_STEREO_RATES SNDRV_PCM_RATE_48000 +#define RT1308_FORMATS (SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S24_LE) + +static const struct snd_soc_dai_ops rt1308_aif_dai_ops = { + .hw_params = rt1308_hw_params, + .set_fmt = rt1308_set_dai_fmt, +}; + +static struct snd_soc_dai_driver rt1308_dai[] = { + { + .name = "rt1308-aif", + .playback = { + .stream_name = "AIF1 Playback", + .channels_min = 1, + .channels_max = 2, + .rates = RT1308_STEREO_RATES, + .formats = RT1308_FORMATS, + }, + .ops = &rt1308_aif_dai_ops, + }, +}; + +static const struct snd_soc_component_driver soc_component_dev_rt1308 = { + .probe = rt1308_probe, + .remove = rt1308_remove, + .suspend = rt1308_suspend, + .resume = rt1308_resume, + .controls = rt1308_snd_controls, + .num_controls = ARRAY_SIZE(rt1308_snd_controls), + .dapm_widgets = rt1308_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(rt1308_dapm_widgets), + .dapm_routes = rt1308_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(rt1308_dapm_routes), + .set_sysclk = rt1308_set_component_sysclk, + .set_pll = rt1308_set_component_pll, + .use_pmdown_time = 1, + .endianness = 1, +}; + +static const struct regmap_config rt1308_regmap = { + .reg_bits = 8, + .val_bits = 32, + .max_register = RT1308_MAX_REG, + .volatile_reg = rt1308_volatile_register, + .readable_reg = rt1308_readable_register, + .cache_type = REGCACHE_RBTREE, + .reg_defaults = rt1308_reg, + .num_reg_defaults = ARRAY_SIZE(rt1308_reg), + .use_single_read = true, + .use_single_write = true, +}; + +#ifdef CONFIG_OF +static const struct of_device_id rt1308_of_match[] = { + { .compatible = "realtek,rt1308", }, + { }, +}; +MODULE_DEVICE_TABLE(of, rt1308_of_match); +#endif + +#ifdef CONFIG_ACPI +static const struct acpi_device_id rt1308_acpi_match[] = { + { "10EC1308", 0, }, + { }, +}; +MODULE_DEVICE_TABLE(acpi, rt1308_acpi_match); +#endif + +static const struct i2c_device_id rt1308_i2c_id[] = { + { "rt1308", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, rt1308_i2c_id); + +static void rt1308_efuse(struct rt1308_priv *rt1308) +{ + regmap_write(rt1308->regmap, RT1308_RESET, 0); + + regmap_write(rt1308->regmap, RT1308_POWER_STATUS, 0x01800000); + msleep(100); + regmap_write(rt1308->regmap, RT1308_EFUSE_1, 0x44fe0f00); + msleep(20); + regmap_write(rt1308->regmap, RT1308_PVDD_OFFSET_CTL, 0x10000000); +} + +static int rt1308_i2c_probe(struct i2c_client *i2c) +{ + struct rt1308_priv *rt1308; + int ret; + unsigned int val; + + rt1308 = devm_kzalloc(&i2c->dev, sizeof(struct rt1308_priv), + GFP_KERNEL); + if (rt1308 == NULL) + return -ENOMEM; + + i2c_set_clientdata(i2c, rt1308); + + rt1308->regmap = devm_regmap_init_i2c(i2c, &rt1308_regmap); + if (IS_ERR(rt1308->regmap)) { + ret = PTR_ERR(rt1308->regmap); + dev_err(&i2c->dev, "Failed to allocate register map: %d\n", + ret); + return ret; + } + + regmap_read(rt1308->regmap, RT1308_VEN_DEV_ID, &val); + /* ignore last byte difference */ + if ((val & 0xFFFFFF00) != RT1308_DEVICE_ID_NUM) { + dev_err(&i2c->dev, + "Device with ID register %x is not rt1308\n", val); + return -ENODEV; + } + + rt1308_efuse(rt1308); + + return devm_snd_soc_register_component(&i2c->dev, + &soc_component_dev_rt1308, + rt1308_dai, ARRAY_SIZE(rt1308_dai)); +} + +static void rt1308_i2c_shutdown(struct i2c_client *client) +{ + struct rt1308_priv *rt1308 = i2c_get_clientdata(client); + + regmap_write(rt1308->regmap, RT1308_RESET, 0); +} + +static struct i2c_driver rt1308_i2c_driver = { + .driver = { + .name = "rt1308", + .of_match_table = of_match_ptr(rt1308_of_match), + .acpi_match_table = ACPI_PTR(rt1308_acpi_match), + }, + .probe_new = rt1308_i2c_probe, + .shutdown = rt1308_i2c_shutdown, + .id_table = rt1308_i2c_id, +}; +module_i2c_driver(rt1308_i2c_driver); + +MODULE_DESCRIPTION("ASoC RT1308 amplifier driver"); +MODULE_AUTHOR("Derek Fang <derek.fang@realtek.com>"); +MODULE_LICENSE("GPL v2"); |