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- // SPDX-License-Identifier: GPL-2.0
- //
- // rt1016.c -- RT1016 ALSA SoC audio amplifier driver
- //
- // Copyright 2020 Realtek Semiconductor Corp.
- // Author: Oder Chiou <[email protected]>
- //
- #include <linux/fs.h>
- #include <linux/module.h>
- #include <linux/moduleparam.h>
- #include <linux/init.h>
- #include <linux/delay.h>
- #include <linux/pm.h>
- #include <linux/regmap.h>
- #include <linux/i2c.h>
- #include <linux/platform_device.h>
- #include <linux/firmware.h>
- #include <linux/gpio.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 "rt1016.h"
- static const struct reg_sequence rt1016_patch[] = {
- {RT1016_VOL_CTRL_3, 0x8900},
- {RT1016_ANA_CTRL_1, 0xa002},
- {RT1016_ANA_CTRL_2, 0x0002},
- {RT1016_CLOCK_4, 0x6700},
- {RT1016_CLASSD_3, 0xdc55},
- {RT1016_CLASSD_4, 0x376a},
- {RT1016_CLASSD_5, 0x009f},
- };
- static const struct reg_default rt1016_reg[] = {
- {0x00, 0x0000},
- {0x01, 0x5400},
- {0x02, 0x5506},
- {0x03, 0xf800},
- {0x04, 0x0000},
- {0x05, 0xbfbf},
- {0x06, 0x8900},
- {0x07, 0xa002},
- {0x08, 0x0000},
- {0x09, 0x0000},
- {0x0a, 0x0000},
- {0x0c, 0x0000},
- {0x0d, 0x0000},
- {0x0e, 0x10ec},
- {0x0f, 0x6595},
- {0x11, 0x0002},
- {0x1c, 0x0000},
- {0x1d, 0x0000},
- {0x1e, 0x0000},
- {0x1f, 0xf000},
- {0x20, 0x0000},
- {0x21, 0x6000},
- {0x22, 0x0000},
- {0x23, 0x6700},
- {0x24, 0x0000},
- {0x25, 0x0000},
- {0x26, 0x0000},
- {0x40, 0x0018},
- {0x60, 0x00a5},
- {0x80, 0x0010},
- {0x81, 0x0009},
- {0x82, 0x0000},
- {0x83, 0x0000},
- {0xa0, 0x0700},
- {0xc0, 0x0080},
- {0xc1, 0x02a0},
- {0xc2, 0x1400},
- {0xc3, 0x0a4a},
- {0xc4, 0x552a},
- {0xc5, 0x087e},
- {0xc6, 0x0020},
- {0xc7, 0xa833},
- {0xc8, 0x0433},
- {0xc9, 0x8040},
- {0xca, 0xdc55},
- {0xcb, 0x376a},
- {0xcc, 0x009f},
- {0xcf, 0x0020},
- };
- static bool rt1016_volatile_register(struct device *dev, unsigned int reg)
- {
- switch (reg) {
- case RT1016_ANA_FLAG:
- case RT1016_VERSION2_ID:
- case RT1016_VERSION1_ID:
- case RT1016_VENDER_ID:
- case RT1016_DEVICE_ID:
- case RT1016_TEST_SIGNAL:
- case RT1016_SC_CTRL_1:
- return true;
- default:
- return false;
- }
- }
- static bool rt1016_readable_register(struct device *dev, unsigned int reg)
- {
- switch (reg) {
- case RT1016_RESET:
- case RT1016_PADS_CTRL_1:
- case RT1016_PADS_CTRL_2:
- case RT1016_I2C_CTRL:
- case RT1016_VOL_CTRL_1:
- case RT1016_VOL_CTRL_2:
- case RT1016_VOL_CTRL_3:
- case RT1016_ANA_CTRL_1:
- case RT1016_MUX_SEL:
- case RT1016_RX_I2S_CTRL:
- case RT1016_ANA_FLAG:
- case RT1016_VERSION2_ID:
- case RT1016_VERSION1_ID:
- case RT1016_VENDER_ID:
- case RT1016_DEVICE_ID:
- case RT1016_ANA_CTRL_2:
- case RT1016_TEST_SIGNAL:
- case RT1016_TEST_CTRL_1:
- case RT1016_TEST_CTRL_2:
- case RT1016_TEST_CTRL_3:
- case RT1016_CLOCK_1:
- case RT1016_CLOCK_2:
- case RT1016_CLOCK_3:
- case RT1016_CLOCK_4:
- case RT1016_CLOCK_5:
- case RT1016_CLOCK_6:
- case RT1016_CLOCK_7:
- case RT1016_I2S_CTRL:
- case RT1016_DAC_CTRL_1:
- case RT1016_SC_CTRL_1:
- case RT1016_SC_CTRL_2:
- case RT1016_SC_CTRL_3:
- case RT1016_SC_CTRL_4:
- case RT1016_SIL_DET:
- case RT1016_SYS_CLK:
- case RT1016_BIAS_CUR:
- case RT1016_DAC_CTRL_2:
- case RT1016_LDO_CTRL:
- case RT1016_CLASSD_1:
- case RT1016_PLL1:
- case RT1016_PLL2:
- case RT1016_PLL3:
- case RT1016_CLASSD_2:
- case RT1016_CLASSD_OUT:
- case RT1016_CLASSD_3:
- case RT1016_CLASSD_4:
- case RT1016_CLASSD_5:
- case RT1016_PWR_CTRL:
- return true;
- default:
- return false;
- }
- }
- static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -9550, 50, 0);
- static const struct snd_kcontrol_new rt1016_snd_controls[] = {
- SOC_DOUBLE_TLV("DAC Playback Volume", RT1016_VOL_CTRL_2,
- RT1016_L_VOL_SFT, RT1016_R_VOL_SFT, 191, 0, dac_vol_tlv),
- SOC_DOUBLE("DAC Playback Switch", RT1016_VOL_CTRL_1,
- RT1016_DA_MUTE_L_SFT, RT1016_DA_MUTE_R_SFT, 1, 1),
- };
- static int rt1016_is_sys_clk_from_pll(struct snd_soc_dapm_widget *source,
- struct snd_soc_dapm_widget *sink)
- {
- struct snd_soc_component *component =
- snd_soc_dapm_to_component(source->dapm);
- struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
- if (rt1016->sysclk_src == RT1016_SCLK_S_PLL)
- return 1;
- else
- return 0;
- }
- /* Interface data select */
- static const char * const rt1016_data_select[] = {
- "L/R", "R/L", "L/L", "R/R"
- };
- static SOC_ENUM_SINGLE_DECL(rt1016_if_data_swap_enum,
- RT1016_I2S_CTRL, RT1016_I2S_DATA_SWAP_SFT, rt1016_data_select);
- static const struct snd_kcontrol_new rt1016_if_data_swap_mux =
- SOC_DAPM_ENUM("Data Swap Mux", rt1016_if_data_swap_enum);
- static const struct snd_soc_dapm_widget rt1016_dapm_widgets[] = {
- SND_SOC_DAPM_MUX("Data Swap Mux", SND_SOC_NOPM, 0, 0,
- &rt1016_if_data_swap_mux),
- SND_SOC_DAPM_SUPPLY("DAC Filter", RT1016_CLOCK_3,
- RT1016_PWR_DAC_FILTER_BIT, 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY("DAMOD", RT1016_CLOCK_3, RT1016_PWR_DACMOD_BIT, 0,
- NULL, 0),
- SND_SOC_DAPM_SUPPLY("FIFO", RT1016_CLOCK_3, RT1016_PWR_CLK_FIFO_BIT, 0,
- NULL, 0),
- SND_SOC_DAPM_SUPPLY("Pure DC", RT1016_CLOCK_3,
- RT1016_PWR_CLK_PUREDC_BIT, 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY("CLK Silence Det", RT1016_CLOCK_3,
- RT1016_PWR_SIL_DET_BIT, 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY("RC 25M", RT1016_CLOCK_3, RT1016_PWR_RC_25M_BIT, 0,
- NULL, 0),
- SND_SOC_DAPM_SUPPLY("PLL1", RT1016_CLOCK_3, RT1016_PWR_PLL1_BIT, 0,
- NULL, 0),
- SND_SOC_DAPM_SUPPLY("ANA CTRL", RT1016_CLOCK_3, RT1016_PWR_ANA_CTRL_BIT,
- 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY("CLK SYS", RT1016_CLOCK_3, RT1016_PWR_CLK_SYS_BIT,
- 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY("LRCK Det", RT1016_CLOCK_4, RT1016_PWR_LRCK_DET_BIT,
- 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY("BCLK Det", RT1016_CLOCK_4, RT1016_PWR_BCLK_DET_BIT,
- 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY("CKGEN DAC", RT1016_DAC_CTRL_2,
- RT1016_CKGEN_DAC_BIT, 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY("VCM SLOW", RT1016_CLASSD_1, RT1016_VCM_SLOW_BIT, 0,
- NULL, 0),
- SND_SOC_DAPM_SUPPLY("Silence Det", RT1016_SIL_DET,
- RT1016_SIL_DET_EN_BIT, 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY("PLL2", RT1016_PLL2, RT1016_PLL2_EN_BIT, 0, NULL,
- 0),
- SND_SOC_DAPM_SUPPLY_S("BG1 BG2", 1, RT1016_PWR_CTRL,
- RT1016_PWR_BG_1_2_BIT, 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY_S("MBIAS BG", 1, RT1016_PWR_CTRL,
- RT1016_PWR_MBIAS_BG_BIT, 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY_S("PLL", 1, RT1016_PWR_CTRL, RT1016_PWR_PLL_BIT, 0,
- NULL, 0),
- SND_SOC_DAPM_SUPPLY_S("BASIC", 1, RT1016_PWR_CTRL, RT1016_PWR_BASIC_BIT,
- 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY_S("CLASS D", 1, RT1016_PWR_CTRL,
- RT1016_PWR_CLSD_BIT, 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY_S("25M", 1, RT1016_PWR_CTRL, RT1016_PWR_25M_BIT, 0,
- NULL, 0),
- SND_SOC_DAPM_SUPPLY_S("DACL", 1, RT1016_PWR_CTRL, RT1016_PWR_DACL_BIT,
- 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY_S("DACR", 1, RT1016_PWR_CTRL, RT1016_PWR_DACR_BIT,
- 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY_S("LDO2", 1, RT1016_PWR_CTRL, RT1016_PWR_LDO2_BIT,
- 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY_S("VREF", 1, RT1016_PWR_CTRL, RT1016_PWR_VREF_BIT,
- 0, NULL, 0),
- SND_SOC_DAPM_SUPPLY_S("MBIAS", 1, RT1016_PWR_CTRL, RT1016_PWR_MBIAS_BIT,
- 0, NULL, 0),
- SND_SOC_DAPM_AIF_IN("AIFRX", "AIF Playback", 0, SND_SOC_NOPM, 0, 0),
- SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0),
- SND_SOC_DAPM_OUTPUT("SPO"),
- };
- static const struct snd_soc_dapm_route rt1016_dapm_routes[] = {
- { "Data Swap Mux", "L/R", "AIFRX" },
- { "Data Swap Mux", "R/L", "AIFRX" },
- { "Data Swap Mux", "L/L", "AIFRX" },
- { "Data Swap Mux", "R/R", "AIFRX" },
- { "DAC", NULL, "DAC Filter" },
- { "DAC", NULL, "DAMOD" },
- { "DAC", NULL, "FIFO" },
- { "DAC", NULL, "Pure DC" },
- { "DAC", NULL, "Silence Det" },
- { "DAC", NULL, "ANA CTRL" },
- { "DAC", NULL, "CLK SYS" },
- { "DAC", NULL, "LRCK Det" },
- { "DAC", NULL, "BCLK Det" },
- { "DAC", NULL, "CKGEN DAC" },
- { "DAC", NULL, "VCM SLOW" },
- { "PLL", NULL, "PLL1" },
- { "PLL", NULL, "PLL2" },
- { "25M", NULL, "RC 25M" },
- { "Silence Det", NULL, "CLK Silence Det" },
- { "DAC", NULL, "Data Swap Mux" },
- { "DAC", NULL, "BG1 BG2" },
- { "DAC", NULL, "MBIAS BG" },
- { "DAC", NULL, "PLL", rt1016_is_sys_clk_from_pll},
- { "DAC", NULL, "BASIC" },
- { "DAC", NULL, "CLASS D" },
- { "DAC", NULL, "25M" },
- { "DAC", NULL, "DACL" },
- { "DAC", NULL, "DACR" },
- { "DAC", NULL, "LDO2" },
- { "DAC", NULL, "VREF" },
- { "DAC", NULL, "MBIAS" },
- { "SPO", NULL, "DAC" },
- };
- static int rt1016_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 rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
- int pre_div, bclk_ms, frame_size;
- unsigned int val_len = 0;
- rt1016->lrck = params_rate(params);
- pre_div = rl6231_get_clk_info(rt1016->sysclk, rt1016->lrck);
- if (pre_div < 0) {
- dev_err(component->dev, "Unsupported clock rate\n");
- 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;
- rt1016->bclk = rt1016->lrck * (32 << bclk_ms);
- if (bclk_ms && rt1016->master)
- snd_soc_component_update_bits(component, RT1016_I2S_CTRL,
- RT1016_I2S_BCLK_MS_MASK, RT1016_I2S_BCLK_MS_64);
- dev_dbg(component->dev, "lrck is %dHz and pre_div is %d for iis %d\n",
- rt1016->lrck, pre_div, dai->id);
- switch (params_width(params)) {
- case 16:
- val_len = RT1016_I2S_DL_16;
- break;
- case 20:
- val_len = RT1016_I2S_DL_20;
- break;
- case 24:
- val_len = RT1016_I2S_DL_24;
- break;
- case 32:
- val_len = RT1016_I2S_DL_32;
- break;
- default:
- return -EINVAL;
- }
- snd_soc_component_update_bits(component, RT1016_I2S_CTRL,
- RT1016_I2S_DL_MASK, val_len);
- snd_soc_component_update_bits(component, RT1016_CLOCK_2,
- RT1016_FS_PD_MASK | RT1016_OSR_PD_MASK,
- ((pre_div + 3) << RT1016_FS_PD_SFT) |
- (pre_div << RT1016_OSR_PD_SFT));
- return 0;
- }
- static int rt1016_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
- {
- struct snd_soc_component *component = dai->component;
- struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
- unsigned int reg_val = 0;
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
- reg_val |= RT1016_I2S_MS_M;
- rt1016->master = 1;
- break;
- case SND_SOC_DAIFMT_CBS_CFS:
- reg_val |= RT1016_I2S_MS_S;
- break;
- default:
- return -EINVAL;
- }
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_NF:
- break;
- case SND_SOC_DAIFMT_IB_NF:
- reg_val |= RT1016_I2S_BCLK_POL_INV;
- 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 |= RT1016_I2S_DF_LEFT;
- break;
- case SND_SOC_DAIFMT_DSP_A:
- reg_val |= RT1016_I2S_DF_PCM_A;
- break;
- case SND_SOC_DAIFMT_DSP_B:
- reg_val |= RT1016_I2S_DF_PCM_B;
- break;
- default:
- return -EINVAL;
- }
- snd_soc_component_update_bits(component, RT1016_I2S_CTRL,
- RT1016_I2S_MS_MASK | RT1016_I2S_BCLK_POL_MASK |
- RT1016_I2S_DF_MASK, reg_val);
- return 0;
- }
- static int rt1016_set_component_sysclk(struct snd_soc_component *component,
- int clk_id, int source, unsigned int freq, int dir)
- {
- struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
- unsigned int reg_val = 0;
- if (freq == rt1016->sysclk && clk_id == rt1016->sysclk_src)
- return 0;
- switch (clk_id) {
- case RT1016_SCLK_S_MCLK:
- reg_val |= RT1016_CLK_SYS_SEL_MCLK;
- break;
- case RT1016_SCLK_S_PLL:
- reg_val |= RT1016_CLK_SYS_SEL_PLL;
- break;
- default:
- dev_err(component->dev, "Invalid clock id (%d)\n", clk_id);
- return -EINVAL;
- }
- rt1016->sysclk = freq;
- rt1016->sysclk_src = clk_id;
- dev_dbg(component->dev, "Sysclk is %dHz and clock id is %d\n",
- freq, clk_id);
- snd_soc_component_update_bits(component, RT1016_CLOCK_1,
- RT1016_CLK_SYS_SEL_MASK, reg_val);
- return 0;
- }
- static int rt1016_set_component_pll(struct snd_soc_component *component,
- int pll_id, int source, unsigned int freq_in,
- unsigned int freq_out)
- {
- struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
- struct rl6231_pll_code pll_code;
- int ret;
- if (!freq_in || !freq_out) {
- dev_dbg(component->dev, "PLL disabled\n");
- rt1016->pll_in = 0;
- rt1016->pll_out = 0;
- return 0;
- }
- if (source == rt1016->pll_src && freq_in == rt1016->pll_in &&
- freq_out == rt1016->pll_out)
- return 0;
- switch (source) {
- case RT1016_PLL_S_MCLK:
- snd_soc_component_update_bits(component, RT1016_CLOCK_1,
- RT1016_PLL_SEL_MASK, RT1016_PLL_SEL_MCLK);
- break;
- case RT1016_PLL_S_BCLK:
- snd_soc_component_update_bits(component, RT1016_CLOCK_1,
- RT1016_PLL_SEL_MASK, RT1016_PLL_SEL_BCLK);
- break;
- default:
- dev_err(component->dev, "Unknown PLL Source %d\n", source);
- return -EINVAL;
- }
- ret = rl6231_pll_calc(freq_in, freq_out * 4, &pll_code);
- if (ret < 0) {
- dev_err(component->dev, "Unsupported input clock %d\n", freq_in);
- return ret;
- }
- dev_dbg(component->dev, "mbypass=%d m=%d n=%d kbypass=%d k=%d\n",
- pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code),
- pll_code.n_code, pll_code.k_bp,
- (pll_code.k_bp ? 0 : pll_code.k_code));
- snd_soc_component_write(component, RT1016_PLL1,
- ((pll_code.m_bp ? 0 : pll_code.m_code) << RT1016_PLL_M_SFT) |
- (pll_code.m_bp << RT1016_PLL_M_BP_SFT) |
- pll_code.n_code);
- snd_soc_component_write(component, RT1016_PLL2,
- (pll_code.k_bp << RT1016_PLL_K_BP_SFT) |
- (pll_code.k_bp ? 0 : pll_code.k_code));
- rt1016->pll_in = freq_in;
- rt1016->pll_out = freq_out;
- rt1016->pll_src = source;
- return 0;
- }
- static int rt1016_probe(struct snd_soc_component *component)
- {
- struct rt1016_priv *rt1016 =
- snd_soc_component_get_drvdata(component);
- rt1016->component = component;
- return 0;
- }
- static void rt1016_remove(struct snd_soc_component *component)
- {
- struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
- regmap_write(rt1016->regmap, RT1016_RESET, 0);
- }
- #define RT1016_STEREO_RATES SNDRV_PCM_RATE_8000_48000
- #define RT1016_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
- SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8)
- static const struct snd_soc_dai_ops rt1016_aif_dai_ops = {
- .hw_params = rt1016_hw_params,
- .set_fmt = rt1016_set_dai_fmt,
- };
- static struct snd_soc_dai_driver rt1016_dai[] = {
- {
- .name = "rt1016-aif",
- .id = 0,
- .playback = {
- .stream_name = "AIF Playback",
- .channels_min = 1,
- .channels_max = 2,
- .rates = RT1016_STEREO_RATES,
- .formats = RT1016_FORMATS,
- },
- .ops = &rt1016_aif_dai_ops,
- }
- };
- #ifdef CONFIG_PM
- static int rt1016_suspend(struct snd_soc_component *component)
- {
- struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
- regcache_cache_only(rt1016->regmap, true);
- regcache_mark_dirty(rt1016->regmap);
- return 0;
- }
- static int rt1016_resume(struct snd_soc_component *component)
- {
- struct rt1016_priv *rt1016 = snd_soc_component_get_drvdata(component);
- regcache_cache_only(rt1016->regmap, false);
- regcache_sync(rt1016->regmap);
- return 0;
- }
- #else
- #define rt1016_suspend NULL
- #define rt1016_resume NULL
- #endif
- static const struct snd_soc_component_driver soc_component_dev_rt1016 = {
- .probe = rt1016_probe,
- .remove = rt1016_remove,
- .suspend = rt1016_suspend,
- .resume = rt1016_resume,
- .controls = rt1016_snd_controls,
- .num_controls = ARRAY_SIZE(rt1016_snd_controls),
- .dapm_widgets = rt1016_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(rt1016_dapm_widgets),
- .dapm_routes = rt1016_dapm_routes,
- .num_dapm_routes = ARRAY_SIZE(rt1016_dapm_routes),
- .set_sysclk = rt1016_set_component_sysclk,
- .set_pll = rt1016_set_component_pll,
- .use_pmdown_time = 1,
- .endianness = 1,
- };
- static const struct regmap_config rt1016_regmap = {
- .reg_bits = 8,
- .val_bits = 16,
- .max_register = RT1016_PWR_CTRL,
- .volatile_reg = rt1016_volatile_register,
- .readable_reg = rt1016_readable_register,
- .cache_type = REGCACHE_RBTREE,
- .reg_defaults = rt1016_reg,
- .num_reg_defaults = ARRAY_SIZE(rt1016_reg),
- };
- static const struct i2c_device_id rt1016_i2c_id[] = {
- { "rt1016", 0 },
- { }
- };
- MODULE_DEVICE_TABLE(i2c, rt1016_i2c_id);
- #if defined(CONFIG_OF)
- static const struct of_device_id rt1016_of_match[] = {
- { .compatible = "realtek,rt1016", },
- {},
- };
- MODULE_DEVICE_TABLE(of, rt1016_of_match);
- #endif
- #ifdef CONFIG_ACPI
- static const struct acpi_device_id rt1016_acpi_match[] = {
- {"10EC1016", 0,},
- {},
- };
- MODULE_DEVICE_TABLE(acpi, rt1016_acpi_match);
- #endif
- static int rt1016_i2c_probe(struct i2c_client *i2c)
- {
- struct rt1016_priv *rt1016;
- int ret;
- unsigned int val;
- rt1016 = devm_kzalloc(&i2c->dev, sizeof(struct rt1016_priv),
- GFP_KERNEL);
- if (rt1016 == NULL)
- return -ENOMEM;
- i2c_set_clientdata(i2c, rt1016);
- rt1016->regmap = devm_regmap_init_i2c(i2c, &rt1016_regmap);
- if (IS_ERR(rt1016->regmap)) {
- ret = PTR_ERR(rt1016->regmap);
- dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
- ret);
- return ret;
- }
- regmap_read(rt1016->regmap, RT1016_DEVICE_ID, &val);
- if (val != RT1016_DEVICE_ID_VAL) {
- dev_err(&i2c->dev,
- "Device with ID register %x is not rt1016\n", val);
- return -ENODEV;
- }
- regmap_write(rt1016->regmap, RT1016_RESET, 0);
- ret = regmap_register_patch(rt1016->regmap, rt1016_patch,
- ARRAY_SIZE(rt1016_patch));
- if (ret != 0)
- dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret);
- return devm_snd_soc_register_component(&i2c->dev,
- &soc_component_dev_rt1016,
- rt1016_dai, ARRAY_SIZE(rt1016_dai));
- }
- static void rt1016_i2c_shutdown(struct i2c_client *client)
- {
- struct rt1016_priv *rt1016 = i2c_get_clientdata(client);
- regmap_write(rt1016->regmap, RT1016_RESET, 0);
- }
- static struct i2c_driver rt1016_i2c_driver = {
- .driver = {
- .name = "rt1016",
- .of_match_table = of_match_ptr(rt1016_of_match),
- .acpi_match_table = ACPI_PTR(rt1016_acpi_match),
- },
- .probe_new = rt1016_i2c_probe,
- .shutdown = rt1016_i2c_shutdown,
- .id_table = rt1016_i2c_id,
- };
- module_i2c_driver(rt1016_i2c_driver);
- MODULE_DESCRIPTION("ASoC RT1016 driver");
- MODULE_AUTHOR("Oder Chiou <[email protected]>");
- MODULE_LICENSE("GPL v2");
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