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linux_dsm_epyc7002/sound/soc/codecs/rt1308.c
Colin Ian King 13ab0d1ab8
ASoC: rt1308: make array pd static const, makes object smaller 
Don't populate the array pd on the stack but instead make it
static const. Makes the object code smaller by 82 bytes.

Before:
   text	   data	    bss	    dec	    hex	filename
  26548	   7288	     64	  33900	   846c	sound/soc/codecs/rt1308.o

After:
   text	   data	    bss	    dec	    hex	filename
  26370	   7384	     64	  33818	   841a	sound/soc/codecs/rt1308.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190907074634.22144-1-colin.king@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-09-09 10:52:07 +01:00

876 lines
22 KiB
C
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// 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, "Unsupport 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,
.non_legacy_dai_naming = 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 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,
const struct i2c_device_id *id)
{
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 = 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");
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