forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
609 lines
15 KiB
609 lines
15 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
// |
|
// rt1019.c -- RT1019 ALSA SoC audio amplifier driver |
|
// Author: Jack Yu <[email protected]> |
|
// |
|
// Copyright(c) 2021 Realtek Semiconductor Corp. |
|
// |
|
// |
|
|
|
#include <linux/acpi.h> |
|
#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 "rt1019.h" |
|
|
|
static const struct reg_default rt1019_reg[] = { |
|
{ 0x0000, 0x00 }, |
|
{ 0x0011, 0x04 }, |
|
{ 0x0013, 0x00 }, |
|
{ 0x0019, 0x30 }, |
|
{ 0x001b, 0x01 }, |
|
{ 0x005c, 0x00 }, |
|
{ 0x005e, 0x10 }, |
|
{ 0x005f, 0xec }, |
|
{ 0x0061, 0x10 }, |
|
{ 0x0062, 0x19 }, |
|
{ 0x0066, 0x08 }, |
|
{ 0x0100, 0x80 }, |
|
{ 0x0100, 0x51 }, |
|
{ 0x0102, 0x23 }, |
|
{ 0x0311, 0x00 }, |
|
{ 0x0312, 0x3e }, |
|
{ 0x0313, 0x86 }, |
|
{ 0x0400, 0x03 }, |
|
{ 0x0401, 0x02 }, |
|
{ 0x0402, 0x01 }, |
|
{ 0x0504, 0xff }, |
|
{ 0x0505, 0x24 }, |
|
{ 0x0b00, 0x50 }, |
|
{ 0x0b01, 0xc3 }, |
|
}; |
|
|
|
static bool rt1019_volatile_register(struct device *dev, unsigned int reg) |
|
{ |
|
switch (reg) { |
|
case RT1019_PWR_STRP_2: |
|
case RT1019_VER_ID: |
|
case RT1019_VEND_ID_1: |
|
case RT1019_VEND_ID_2: |
|
case RT1019_DEV_ID_1: |
|
case RT1019_DEV_ID_2: |
|
return true; |
|
|
|
default: |
|
return false; |
|
} |
|
} |
|
|
|
static bool rt1019_readable_register(struct device *dev, unsigned int reg) |
|
{ |
|
switch (reg) { |
|
case RT1019_RESET: |
|
case RT1019_IDS_CTRL: |
|
case RT1019_ASEL_CTRL: |
|
case RT1019_PWR_STRP_2: |
|
case RT1019_BEEP_TONE: |
|
case RT1019_VER_ID: |
|
case RT1019_VEND_ID_1: |
|
case RT1019_VEND_ID_2: |
|
case RT1019_DEV_ID_1: |
|
case RT1019_DEV_ID_2: |
|
case RT1019_SDB_CTRL: |
|
case RT1019_CLK_TREE_1: |
|
case RT1019_CLK_TREE_2: |
|
case RT1019_CLK_TREE_3: |
|
case RT1019_PLL_1: |
|
case RT1019_PLL_2: |
|
case RT1019_PLL_3: |
|
case RT1019_TDM_1: |
|
case RT1019_TDM_2: |
|
case RT1019_TDM_3: |
|
case RT1019_DMIX_MONO_1: |
|
case RT1019_DMIX_MONO_2: |
|
case RT1019_BEEP_1: |
|
case RT1019_BEEP_2: |
|
return true; |
|
default: |
|
return false; |
|
} |
|
} |
|
|
|
static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -9525, 75, 0); |
|
|
|
static const char * const rt1019_din_source_select[] = { |
|
"Left", |
|
"Right", |
|
"Left + Right average", |
|
}; |
|
|
|
static SOC_ENUM_SINGLE_DECL(rt1019_mono_lr_sel, RT1019_IDS_CTRL, 0, |
|
rt1019_din_source_select); |
|
|
|
static const struct snd_kcontrol_new rt1019_snd_controls[] = { |
|
SOC_SINGLE_TLV("DAC Playback Volume", RT1019_DMIX_MONO_1, 0, |
|
127, 0, dac_vol_tlv), |
|
SOC_ENUM("Mono LR Select", rt1019_mono_lr_sel), |
|
}; |
|
|
|
static int r1019_dac_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_PRE_PMU: |
|
snd_soc_component_write(component, RT1019_SDB_CTRL, 0xb); |
|
break; |
|
case SND_SOC_DAPM_POST_PMD: |
|
snd_soc_component_write(component, RT1019_SDB_CTRL, 0xa); |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static const struct snd_soc_dapm_widget rt1019_dapm_widgets[] = { |
|
SND_SOC_DAPM_AIF_IN("AIFRX", "AIF Playback", 0, SND_SOC_NOPM, 0, 0), |
|
SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, |
|
r1019_dac_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), |
|
SND_SOC_DAPM_OUTPUT("SPO"), |
|
}; |
|
|
|
static const struct snd_soc_dapm_route rt1019_dapm_routes[] = { |
|
{ "DAC", NULL, "AIFRX" }, |
|
{ "SPO", NULL, "DAC" }, |
|
}; |
|
|
|
static int rt1019_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 rt1019_priv *rt1019 = snd_soc_component_get_drvdata(component); |
|
int pre_div, bclk_ms, frame_size; |
|
unsigned int val_len = 0, sys_div_da_filter = 0; |
|
unsigned int sys_dac_osr = 0, sys_fifo_clk = 0; |
|
unsigned int sys_clk_cal = 0, sys_asrc_in = 0; |
|
|
|
rt1019->lrck = params_rate(params); |
|
pre_div = rl6231_get_clk_info(rt1019->sysclk, rt1019->lrck); |
|
if (pre_div < 0) { |
|
dev_err(component->dev, "Unsupported clock setting\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; |
|
rt1019->bclk = rt1019->lrck * (32 << bclk_ms); |
|
|
|
dev_dbg(dai->dev, "bclk is %dHz and lrck is %dHz\n", |
|
rt1019->bclk, rt1019->lrck); |
|
dev_dbg(dai->dev, "bclk_ms is %d and pre_div is %d for iis %d\n", |
|
bclk_ms, pre_div, dai->id); |
|
|
|
switch (pre_div) { |
|
case 0: |
|
sys_div_da_filter = RT1019_SYS_DIV_DA_FIL_DIV1; |
|
sys_dac_osr = RT1019_SYS_DA_OSR_DIV1; |
|
sys_asrc_in = RT1019_ASRC_256FS_DIV1; |
|
sys_fifo_clk = RT1019_SEL_FIFO_DIV1; |
|
sys_clk_cal = RT1019_SEL_CLK_CAL_DIV1; |
|
break; |
|
case 1: |
|
sys_div_da_filter = RT1019_SYS_DIV_DA_FIL_DIV2; |
|
sys_dac_osr = RT1019_SYS_DA_OSR_DIV2; |
|
sys_asrc_in = RT1019_ASRC_256FS_DIV2; |
|
sys_fifo_clk = RT1019_SEL_FIFO_DIV2; |
|
sys_clk_cal = RT1019_SEL_CLK_CAL_DIV2; |
|
break; |
|
case 3: |
|
sys_div_da_filter = RT1019_SYS_DIV_DA_FIL_DIV4; |
|
sys_dac_osr = RT1019_SYS_DA_OSR_DIV4; |
|
sys_asrc_in = RT1019_ASRC_256FS_DIV4; |
|
sys_fifo_clk = RT1019_SEL_FIFO_DIV4; |
|
sys_clk_cal = RT1019_SEL_CLK_CAL_DIV4; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
switch (params_width(params)) { |
|
case 16: |
|
break; |
|
case 20: |
|
val_len = RT1019_I2S_DL_20; |
|
break; |
|
case 24: |
|
val_len = RT1019_I2S_DL_24; |
|
break; |
|
case 32: |
|
val_len = RT1019_I2S_DL_32; |
|
break; |
|
case 8: |
|
val_len = RT1019_I2S_DL_8; |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
snd_soc_component_update_bits(component, RT1019_TDM_2, RT1019_I2S_DL_MASK, |
|
val_len); |
|
snd_soc_component_update_bits(component, RT1019_CLK_TREE_1, |
|
RT1019_SEL_FIFO_MASK, sys_fifo_clk); |
|
snd_soc_component_update_bits(component, RT1019_CLK_TREE_2, |
|
RT1019_SYS_DIV_DA_FIL_MASK | RT1019_SYS_DA_OSR_MASK | |
|
RT1019_ASRC_256FS_MASK, sys_div_da_filter | sys_dac_osr | |
|
sys_asrc_in); |
|
snd_soc_component_update_bits(component, RT1019_CLK_TREE_3, |
|
RT1019_SEL_CLK_CAL_MASK, sys_clk_cal); |
|
|
|
return 0; |
|
} |
|
|
|
static int rt1019_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) |
|
{ |
|
struct snd_soc_component *component = dai->component; |
|
unsigned int reg_val = 0, reg_val2 = 0; |
|
|
|
switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
|
case SND_SOC_DAIFMT_NB_NF: |
|
break; |
|
case SND_SOC_DAIFMT_IB_NF: |
|
reg_val2 |= RT1019_TDM_BCLK_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 |= RT1019_I2S_DF_LEFT; |
|
break; |
|
|
|
case SND_SOC_DAIFMT_DSP_A: |
|
reg_val |= RT1019_I2S_DF_PCM_A_R; |
|
break; |
|
|
|
case SND_SOC_DAIFMT_DSP_B: |
|
reg_val |= RT1019_I2S_DF_PCM_B_R; |
|
break; |
|
|
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
snd_soc_component_update_bits(component, RT1019_TDM_2, |
|
RT1019_I2S_DF_MASK, reg_val); |
|
snd_soc_component_update_bits(component, RT1019_TDM_1, |
|
RT1019_TDM_BCLK_MASK, reg_val2); |
|
|
|
return 0; |
|
} |
|
|
|
static int rt1019_set_dai_sysclk(struct snd_soc_dai *dai, |
|
int clk_id, unsigned int freq, int dir) |
|
{ |
|
struct snd_soc_component *component = dai->component; |
|
struct rt1019_priv *rt1019 = snd_soc_component_get_drvdata(component); |
|
unsigned int reg_val = 0; |
|
|
|
if (freq == rt1019->sysclk && clk_id == rt1019->sysclk_src) |
|
return 0; |
|
|
|
switch (clk_id) { |
|
case RT1019_SCLK_S_BCLK: |
|
reg_val |= RT1019_CLK_SYS_PRE_SEL_BCLK; |
|
break; |
|
|
|
case RT1019_SCLK_S_PLL: |
|
reg_val |= RT1019_CLK_SYS_PRE_SEL_PLL; |
|
break; |
|
|
|
default: |
|
dev_err(component->dev, "Invalid clock id (%d)\n", clk_id); |
|
return -EINVAL; |
|
} |
|
|
|
rt1019->sysclk = freq; |
|
rt1019->sysclk_src = clk_id; |
|
|
|
dev_dbg(dai->dev, "Sysclk is %dHz and clock id is %d\n", freq, clk_id); |
|
|
|
snd_soc_component_update_bits(component, RT1019_CLK_TREE_1, |
|
RT1019_CLK_SYS_PRE_SEL_MASK, reg_val); |
|
|
|
return 0; |
|
} |
|
|
|
static int rt1019_set_dai_pll(struct snd_soc_dai *dai, int pll_id, int source, |
|
unsigned int freq_in, unsigned int freq_out) |
|
{ |
|
struct snd_soc_component *component = dai->component; |
|
struct rt1019_priv *rt1019 = 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"); |
|
rt1019->pll_in = 0; |
|
rt1019->pll_out = 0; |
|
return 0; |
|
} |
|
|
|
if (source == rt1019->pll_src && freq_in == rt1019->pll_in && |
|
freq_out == rt1019->pll_out) |
|
return 0; |
|
|
|
switch (source) { |
|
case RT1019_PLL_S_BCLK: |
|
snd_soc_component_update_bits(component, RT1019_CLK_TREE_1, |
|
RT1019_PLL_SRC_MASK, RT1019_PLL_SRC_SEL_BCLK); |
|
break; |
|
|
|
case RT1019_PLL_S_RC25M: |
|
snd_soc_component_update_bits(component, RT1019_CLK_TREE_1, |
|
RT1019_PLL_SRC_MASK, RT1019_PLL_SRC_SEL_RC); |
|
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_update_bits(component, RT1019_PWR_STRP_2, |
|
RT1019_AUTO_BITS_SEL_MASK | RT1019_AUTO_CLK_SEL_MASK, |
|
RT1019_AUTO_BITS_SEL_MANU | RT1019_AUTO_CLK_SEL_MANU); |
|
snd_soc_component_update_bits(component, RT1019_PLL_1, |
|
RT1019_PLL_M_MASK | RT1019_PLL_M_BP_MASK | RT1019_PLL_Q_8_8_MASK, |
|
((pll_code.m_bp ? 0 : pll_code.m_code) << RT1019_PLL_M_SFT) | |
|
(pll_code.m_bp << RT1019_PLL_M_BP_SFT) | |
|
((pll_code.n_code >> 8) & RT1019_PLL_Q_8_8_MASK)); |
|
snd_soc_component_update_bits(component, RT1019_PLL_2, |
|
RT1019_PLL_Q_7_0_MASK, pll_code.n_code & RT1019_PLL_Q_7_0_MASK); |
|
snd_soc_component_update_bits(component, RT1019_PLL_3, |
|
RT1019_PLL_K_MASK, pll_code.k_code); |
|
|
|
rt1019->pll_in = freq_in; |
|
rt1019->pll_out = freq_out; |
|
rt1019->pll_src = source; |
|
|
|
return 0; |
|
} |
|
|
|
static int rt1019_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, |
|
unsigned int rx_mask, int slots, int slot_width) |
|
{ |
|
struct snd_soc_component *component = dai->component; |
|
unsigned int val = 0, rx_slotnum; |
|
int ret = 0, first_bit; |
|
|
|
switch (slots) { |
|
case 4: |
|
val |= RT1019_I2S_TX_4CH; |
|
break; |
|
case 6: |
|
val |= RT1019_I2S_TX_6CH; |
|
break; |
|
case 8: |
|
val |= RT1019_I2S_TX_8CH; |
|
break; |
|
case 2: |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
switch (slot_width) { |
|
case 20: |
|
val |= RT1019_I2S_DL_20; |
|
break; |
|
case 24: |
|
val |= RT1019_I2S_DL_24; |
|
break; |
|
case 32: |
|
val |= RT1019_I2S_DL_32; |
|
break; |
|
case 8: |
|
val |= RT1019_I2S_DL_8; |
|
break; |
|
case 16: |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
/* Rx slot configuration */ |
|
rx_slotnum = hweight_long(rx_mask); |
|
if (rx_slotnum != 1) { |
|
ret = -EINVAL; |
|
dev_err(component->dev, "too many rx slots or zero slot\n"); |
|
goto _set_tdm_err_; |
|
} |
|
/* This is an assumption that the system sends stereo audio to the |
|
* amplifier typically. And the stereo audio is placed in slot 0/2/4/6 |
|
* as the starting slot. The users could select the channel from |
|
* L/R/L+R by "Mono LR Select" control. |
|
*/ |
|
first_bit = __ffs(rx_mask); |
|
switch (first_bit) { |
|
case 0: |
|
case 2: |
|
case 4: |
|
case 6: |
|
snd_soc_component_update_bits(component, |
|
RT1019_TDM_3, |
|
RT1019_TDM_I2S_TX_L_DAC1_1_MASK | |
|
RT1019_TDM_I2S_TX_R_DAC1_1_MASK, |
|
(first_bit << RT1019_TDM_I2S_TX_L_DAC1_1_SFT) | |
|
((first_bit + 1) << RT1019_TDM_I2S_TX_R_DAC1_1_SFT)); |
|
break; |
|
case 1: |
|
case 3: |
|
case 5: |
|
case 7: |
|
snd_soc_component_update_bits(component, |
|
RT1019_TDM_3, |
|
RT1019_TDM_I2S_TX_L_DAC1_1_MASK | |
|
RT1019_TDM_I2S_TX_R_DAC1_1_MASK, |
|
((first_bit - 1) << RT1019_TDM_I2S_TX_L_DAC1_1_SFT) | |
|
(first_bit << RT1019_TDM_I2S_TX_R_DAC1_1_SFT)); |
|
break; |
|
default: |
|
ret = -EINVAL; |
|
goto _set_tdm_err_; |
|
} |
|
|
|
snd_soc_component_update_bits(component, RT1019_TDM_2, |
|
RT1019_I2S_CH_TX_MASK | RT1019_I2S_DF_MASK, val); |
|
|
|
_set_tdm_err_: |
|
return ret; |
|
} |
|
|
|
static int rt1019_probe(struct snd_soc_component *component) |
|
{ |
|
struct rt1019_priv *rt1019 = snd_soc_component_get_drvdata(component); |
|
|
|
rt1019->component = component; |
|
snd_soc_component_write(component, RT1019_SDB_CTRL, 0xa); |
|
|
|
return 0; |
|
} |
|
|
|
#define RT1019_STEREO_RATES SNDRV_PCM_RATE_8000_192000 |
|
#define RT1019_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 rt1019_aif_dai_ops = { |
|
.hw_params = rt1019_hw_params, |
|
.set_fmt = rt1019_set_dai_fmt, |
|
.set_sysclk = rt1019_set_dai_sysclk, |
|
.set_pll = rt1019_set_dai_pll, |
|
.set_tdm_slot = rt1019_set_tdm_slot, |
|
}; |
|
|
|
static struct snd_soc_dai_driver rt1019_dai[] = { |
|
{ |
|
.name = "rt1019-aif", |
|
.id = 0, |
|
.playback = { |
|
.stream_name = "AIF Playback", |
|
.channels_min = 1, |
|
.channels_max = 2, |
|
.rates = RT1019_STEREO_RATES, |
|
.formats = RT1019_FORMATS, |
|
}, |
|
.ops = &rt1019_aif_dai_ops, |
|
} |
|
}; |
|
|
|
static const struct snd_soc_component_driver soc_component_dev_rt1019 = { |
|
.probe = rt1019_probe, |
|
.controls = rt1019_snd_controls, |
|
.num_controls = ARRAY_SIZE(rt1019_snd_controls), |
|
.dapm_widgets = rt1019_dapm_widgets, |
|
.num_dapm_widgets = ARRAY_SIZE(rt1019_dapm_widgets), |
|
.dapm_routes = rt1019_dapm_routes, |
|
.num_dapm_routes = ARRAY_SIZE(rt1019_dapm_routes), |
|
.non_legacy_dai_naming = 1, |
|
}; |
|
|
|
static const struct regmap_config rt1019_regmap = { |
|
.reg_bits = 16, |
|
.val_bits = 8, |
|
.use_single_read = true, |
|
.use_single_write = true, |
|
.max_register = RT1019_BEEP_2, |
|
.volatile_reg = rt1019_volatile_register, |
|
.readable_reg = rt1019_readable_register, |
|
.cache_type = REGCACHE_RBTREE, |
|
.reg_defaults = rt1019_reg, |
|
.num_reg_defaults = ARRAY_SIZE(rt1019_reg), |
|
}; |
|
|
|
static const struct i2c_device_id rt1019_i2c_id[] = { |
|
{ "rt1019", 0 }, |
|
{ } |
|
}; |
|
MODULE_DEVICE_TABLE(i2c, rt1019_i2c_id); |
|
|
|
static const struct of_device_id rt1019_of_match[] = { |
|
{ .compatible = "realtek,rt1019", }, |
|
{}, |
|
}; |
|
MODULE_DEVICE_TABLE(of, rt1019_of_match); |
|
|
|
#ifdef CONFIG_ACPI |
|
static const struct acpi_device_id rt1019_acpi_match[] = { |
|
{ "10EC1019", 0}, |
|
{ }, |
|
}; |
|
MODULE_DEVICE_TABLE(acpi, rt1019_acpi_match); |
|
#endif |
|
|
|
static int rt1019_i2c_probe(struct i2c_client *i2c, |
|
const struct i2c_device_id *id) |
|
{ |
|
struct rt1019_priv *rt1019; |
|
int ret; |
|
unsigned int val, val2, dev_id; |
|
|
|
rt1019 = devm_kzalloc(&i2c->dev, sizeof(struct rt1019_priv), |
|
GFP_KERNEL); |
|
if (!rt1019) |
|
return -ENOMEM; |
|
|
|
i2c_set_clientdata(i2c, rt1019); |
|
|
|
rt1019->regmap = devm_regmap_init_i2c(i2c, &rt1019_regmap); |
|
if (IS_ERR(rt1019->regmap)) { |
|
ret = PTR_ERR(rt1019->regmap); |
|
dev_err(&i2c->dev, "Failed to allocate register map: %d\n", |
|
ret); |
|
return ret; |
|
} |
|
|
|
regmap_read(rt1019->regmap, RT1019_DEV_ID_1, &val); |
|
regmap_read(rt1019->regmap, RT1019_DEV_ID_2, &val2); |
|
dev_id = val << 8 | val2; |
|
if (dev_id != RT1019_DEVICE_ID_VAL && dev_id != RT1019_DEVICE_ID_VAL2) { |
|
dev_err(&i2c->dev, |
|
"Device with ID register 0x%x is not rt1019\n", dev_id); |
|
return -ENODEV; |
|
} |
|
|
|
return devm_snd_soc_register_component(&i2c->dev, |
|
&soc_component_dev_rt1019, rt1019_dai, ARRAY_SIZE(rt1019_dai)); |
|
} |
|
|
|
static struct i2c_driver rt1019_i2c_driver = { |
|
.driver = { |
|
.name = "rt1019", |
|
.of_match_table = of_match_ptr(rt1019_of_match), |
|
.acpi_match_table = ACPI_PTR(rt1019_acpi_match), |
|
}, |
|
.probe = rt1019_i2c_probe, |
|
.id_table = rt1019_i2c_id, |
|
}; |
|
module_i2c_driver(rt1019_i2c_driver); |
|
|
|
MODULE_DESCRIPTION("ASoC RT1019 driver"); |
|
MODULE_AUTHOR("Jack Yu <[email protected]>"); |
|
MODULE_LICENSE("GPL v2");
|
|
|