// SPDX-License-Identifier: GPL-2.0-only
//
// rt1316-sdw.c -- rt1316 SDCA ALSA SoC amplifier audio driver
//
// Copyright(c) 2021 Realtek Semiconductor Corp.
//
//
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/pm_runtime.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/sdw.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include "rt1316-sdw.h"
static const struct reg_default rt1316_reg_defaults[] = {
{ 0x3004, 0x00 },
{ 0x3005, 0x00 },
{ 0x3206, 0x00 },
{ 0xc001, 0x00 },
{ 0xc002, 0x00 },
{ 0xc003, 0x00 },
{ 0xc004, 0x00 },
{ 0xc005, 0x00 },
{ 0xc006, 0x00 },
{ 0xc007, 0x00 },
{ 0xc008, 0x00 },
{ 0xc009, 0x00 },
{ 0xc00a, 0x00 },
{ 0xc00b, 0x00 },
{ 0xc00c, 0x00 },
{ 0xc00d, 0x00 },
{ 0xc00e, 0x00 },
{ 0xc00f, 0x00 },
{ 0xc010, 0xa5 },
{ 0xc011, 0x00 },
{ 0xc012, 0xff },
{ 0xc013, 0xff },
{ 0xc014, 0x40 },
{ 0xc015, 0x00 },
{ 0xc016, 0x00 },
{ 0xc017, 0x00 },
{ 0xc605, 0x30 },
{ 0xc700, 0x0a },
{ 0xc701, 0xaa },
{ 0xc702, 0x1a },
{ 0xc703, 0x0a },
{ 0xc710, 0x80 },
{ 0xc711, 0x00 },
{ 0xc712, 0x3e },
{ 0xc713, 0x80 },
{ 0xc714, 0x80 },
{ 0xc715, 0x06 },
{ 0xd101, 0x00 },
{ 0xd102, 0x30 },
{ 0xd103, 0x00 },
{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0), 0x00 },
{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L), 0x01 },
{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R), 0x01 },
{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0x01 },
{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 },
{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 },
{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, RT1316_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 },
};
static const struct reg_sequence rt1316_blind_write[] = {
{ 0xc710, 0x17 },
{ 0xc711, 0x80 },
{ 0xc712, 0x26 },
{ 0xc713, 0x06 },
{ 0xc714, 0x80 },
{ 0xc715, 0x06 },
{ 0xc702, 0x0a },
{ 0xc703, 0x0a },
{ 0xc001, 0x45 },
{ 0xc003, 0x00 },
{ 0xc004, 0x11 },
{ 0xc005, 0x00 },
{ 0xc006, 0x00 },
{ 0xc106, 0x00 },
{ 0xc007, 0x11 },
{ 0xc008, 0x11 },
{ 0xc009, 0x00 },
{ 0x2f0a, 0x00 },
{ 0xd101, 0xf0 },
{ 0xd103, 0x9b },
{ 0x2f36, 0x8e },
{ 0x3206, 0x80 },
{ 0x3211, 0x0b },
{ 0x3216, 0x06 },
{ 0xc614, 0x20 },
{ 0xc615, 0x0a },
{ 0xc616, 0x02 },
{ 0xc617, 0x00 },
{ 0xc60b, 0x10 },
{ 0xc60e, 0x05 },
{ 0xc102, 0x00 },
{ 0xc090, 0xb0 },
{ 0xc00f, 0x01 },
{ 0xc09c, 0x7b },
{ 0xc602, 0x07 },
{ 0xc603, 0x07 },
{ 0xc0a3, 0x71 },
{ 0xc00b, 0x30 },
{ 0xc093, 0x80 },
{ 0xc09d, 0x80 },
{ 0xc0b0, 0x77 },
{ 0xc010, 0xa5 },
{ 0xc050, 0x83 },
{ 0x2f55, 0x03 },
{ 0x3217, 0xb5 },
{ 0x3202, 0x02 },
{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0x00 },
/* for IV sense */
{ 0x2232, 0x80 },
{ 0xc0b0, 0x77 },
{ 0xc011, 0x00 },
{ 0xc020, 0x00 },
{ 0xc023, 0x00 },
{ 0x3101, 0x00 },
{ 0x3004, 0xa0 },
{ 0x3005, 0xb1 },
{ 0xc007, 0x11 },
{ 0xc008, 0x11 },
{ 0xc009, 0x00 },
{ 0xc022, 0xd6 },
{ 0xc025, 0xd6 },
{ 0xd001, 0x03 },
{ 0xd002, 0xbf },
{ 0xd003, 0x03 },
{ 0xd004, 0xbf },
};
static bool rt1316_readable_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case 0x2f0a:
case 0x2f36:
case 0x3203 ... 0x320e:
case 0xc000 ... 0xc7b4:
case 0xcf00 ... 0xcf03:
case 0xd101 ... 0xd103:
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0):
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L):
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R):
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24, RT1316_SDCA_CTL_REQ_POWER_STATE, 0):
return true;
default:
return false;
}
}
static bool rt1316_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case 0xc000:
case 0xc093:
case 0xc09d:
case 0xc0a3:
case 0xc201:
case 0xc427 ... 0xc428:
case 0xd102:
return true;
default:
return false;
}
}
static const struct regmap_config rt1316_sdw_regmap = {
.reg_bits = 32,
.val_bits = 8,
.readable_reg = rt1316_readable_register,
.volatile_reg = rt1316_volatile_register,
.max_register = 0x4108ffff,
.reg_defaults = rt1316_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(rt1316_reg_defaults),
.cache_type = REGCACHE_MAPLE,
.use_single_read = true,
.use_single_write = true,
};
static int rt1316_read_prop(struct sdw_slave *slave)
{
struct sdw_slave_prop *prop = &slave->prop;
int nval;
int i, j;
u32 bit;
unsigned long addr;
struct sdw_dpn_prop *dpn;
prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
prop->paging_support = true;
/* first we need to allocate memory for set bits in port lists */
prop->source_ports = 0x04; /* BITMAP: 00000100 */
prop->sink_ports = 0x2; /* BITMAP: 00000010 */
nval = hweight32(prop->source_ports);
prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,
sizeof(*prop->src_dpn_prop), GFP_KERNEL);
if (!prop->src_dpn_prop)
return -ENOMEM;
i = 0;
dpn = prop->src_dpn_prop;
addr = prop->source_ports;
for_each_set_bit(bit, &addr, 32) {
dpn[i].num = bit;
dpn[i].type = SDW_DPN_FULL;
dpn[i].simple_ch_prep_sm = true;
dpn[i].ch_prep_timeout = 10;
i++;
}
/* do this again for sink now */
nval = hweight32(prop->sink_ports);
prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,
sizeof(*prop->sink_dpn_prop), GFP_KERNEL);
if (!prop->sink_dpn_prop)
return -ENOMEM;
j = 0;
dpn = prop->sink_dpn_prop;
addr = prop->sink_ports;
for_each_set_bit(bit, &addr, 32) {
dpn[j].num = bit;
dpn[j].type = SDW_DPN_FULL;
dpn[j].simple_ch_prep_sm = true;
dpn[j].ch_prep_timeout = 10;
j++;
}
/* set the timeout values */
prop->clk_stop_timeout = 20;
dev_dbg(&slave->dev, "%s\n", __func__);
return 0;
}
static void rt1316_apply_bq_params(struct rt1316_sdw_priv *rt1316)
{
unsigned int i, reg, data;
for (i = 0; i < rt1316->bq_params_cnt; i += 3) {
reg = rt1316->bq_params[i] | (rt1316->bq_params[i + 1] << 8);
data = rt1316->bq_params[i + 2];
regmap_write(rt1316->regmap, reg, data);
}
}
static int rt1316_io_init(struct device *dev, struct sdw_slave *slave)
{
struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev);
if (rt1316->hw_init)
return 0;
regcache_cache_only(rt1316->regmap, false);
if (rt1316->first_hw_init) {
regcache_cache_bypass(rt1316->regmap, true);
} else {
/*
* PM runtime status is marked as 'active' only when a Slave reports as Attached
*/
/* update count of parent 'active' children */
pm_runtime_set_active(&slave->dev);
}
pm_runtime_get_noresume(&slave->dev);
/* sw reset */
regmap_write(rt1316->regmap, 0xc000, 0x02);
/* initial settings - blind write */
regmap_multi_reg_write(rt1316->regmap, rt1316_blind_write,
ARRAY_SIZE(rt1316_blind_write));
if (rt1316->first_hw_init) {
regcache_cache_bypass(rt1316->regmap, false);
regcache_mark_dirty(rt1316->regmap);
} else
rt1316->first_hw_init = true;
/* Mark Slave initialization complete */
rt1316->hw_init = true;
pm_runtime_mark_last_busy(&slave->dev);
pm_runtime_put_autosuspend(&slave->dev);
dev_dbg(&slave->dev, "%s hw_init complete\n", __func__);
return 0;
}
static int rt1316_update_status(struct sdw_slave *slave,
enum sdw_slave_status status)
{
struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(&slave->dev);
if (status == SDW_SLAVE_UNATTACHED)
rt1316->hw_init = false;
/*
* Perform initialization only if slave status is present and
* hw_init flag is false
*/
if (rt1316->hw_init || status != SDW_SLAVE_ATTACHED)
return 0;
/* perform I/O transfers required for Slave initialization */
return rt1316_io_init(&slave->dev, slave);
}
static int rt1316_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);
struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component);
unsigned char ps0 = 0x0, ps3 = 0x3;
switch (event) {
case SND_SOC_DAPM_POST_PMU:
regmap_write(rt1316->regmap,
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23,
RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
ps0);
regmap_write(rt1316->regmap,
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27,
RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
ps0);
regmap_write(rt1316->regmap,
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22,
RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
ps0);
break;
case SND_SOC_DAPM_PRE_PMD:
regmap_write(rt1316->regmap,
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE23,
RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
ps3);
regmap_write(rt1316->regmap,
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE27,
RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
ps3);
regmap_write(rt1316->regmap,
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE22,
RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
ps3);
break;
default:
break;
}
return 0;
}
static int rt1316_pde24_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 rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component);
unsigned char ps0 = 0x0, ps3 = 0x3;
switch (event) {
case SND_SOC_DAPM_POST_PMU:
regmap_write(rt1316->regmap,
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24,
RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
ps0);
break;
case SND_SOC_DAPM_PRE_PMD:
regmap_write(rt1316->regmap,
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_PDE24,
RT1316_SDCA_CTL_REQ_POWER_STATE, 0),
ps3);
break;
}
return 0;
}
static const char * const rt1316_rx_data_ch_select[] = {
"L,R",
"L,L",
"L,R",
"L,L+R",
"R,L",
"R,R",
"R,L+R",
"L+R,L",
"L+R,R",
"L+R,L+R",
};
static SOC_ENUM_SINGLE_DECL(rt1316_rx_data_ch_enum,
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_UDMPU21, RT1316_SDCA_CTL_UDMPU_CLUSTER, 0), 0,
rt1316_rx_data_ch_select);
static const char * const rt1316_dac_output_vol_select[] = {
"immediately",
"zero crossing",
"zero crossing with soft ramp",
};
static SOC_ENUM_SINGLE_DECL(rt1316_dac_vol_ctl_enum,
0xc010, 6, rt1316_dac_output_vol_select);
static const struct snd_kcontrol_new rt1316_snd_controls[] = {
/* I2S Data Channel Selection */
SOC_ENUM("RX Channel Select", rt1316_rx_data_ch_enum),
/* XU24 Bypass Control */
SOC_SINGLE("XU24 Bypass Switch",
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_XU24, RT1316_SDCA_CTL_BYPASS, 0), 0, 1, 0),
/* Left/Right IV tag */
SOC_SINGLE("Left V Tag Select", 0x3004, 0, 7, 0),
SOC_SINGLE("Left I Tag Select", 0x3004, 4, 7, 0),
SOC_SINGLE("Right V Tag Select", 0x3005, 0, 7, 0),
SOC_SINGLE("Right I Tag Select", 0x3005, 4, 7, 0),
/* IV mixer Control */
SOC_DOUBLE("Isense Mixer Switch", 0xc605, 2, 0, 1, 1),
SOC_DOUBLE("Vsense Mixer Switch", 0xc605, 3, 1, 1, 1),
/* DAC Output Volume Control */
SOC_ENUM("DAC Output Vol Control", rt1316_dac_vol_ctl_enum),
};
static const struct snd_kcontrol_new rt1316_sto_dac =
SOC_DAPM_DOUBLE_R("Switch",
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_L),
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1316_SDCA_ENT_FU21, RT1316_SDCA_CTL_FU_MUTE, CH_R),
0, 1, 1);
static const struct snd_soc_dapm_widget rt1316_dapm_widgets[] = {
/* Audio Interface */
SND_SOC_DAPM_AIF_IN("DP1RX", "DP1 Playback", 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_OUT("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0),
/* Digital Interface */
SND_SOC_DAPM_SWITCH("DAC", SND_SOC_NOPM, 0, 0, &rt1316_sto_dac),
/* Output Lines */
SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0,
rt1316_classd_event,
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_OUTPUT("SPOL"),
SND_SOC_DAPM_OUTPUT("SPOR"),
SND_SOC_DAPM_SUPPLY("PDE 24", SND_SOC_NOPM, 0, 0,
rt1316_pde24_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_PGA("I Sense", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("V Sense", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_SIGGEN("I Gen"),
SND_SOC_DAPM_SIGGEN("V Gen"),
};
static const struct snd_soc_dapm_route rt1316_dapm_routes[] = {
{ "DAC", "Switch", "DP1RX" },
{ "CLASS D", NULL, "DAC" },
{ "SPOL", NULL, "CLASS D" },
{ "SPOR", NULL, "CLASS D" },
{ "I Sense", NULL, "I Gen" },
{ "V Sense", NULL, "V Gen" },
{ "I Sense", NULL, "PDE 24" },
{ "V Sense", NULL, "PDE 24" },
{ "DP2TX", NULL, "I Sense" },
{ "DP2TX", NULL, "V Sense" },
};
static int rt1316_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
int direction)
{
snd_soc_dai_dma_data_set(dai, direction, sdw_stream);
return 0;
}
static void rt1316_sdw_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
snd_soc_dai_set_dma_data(dai, substream, NULL);
}
static int rt1316_sdw_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 rt1316_sdw_priv *rt1316 =
snd_soc_component_get_drvdata(component);
struct sdw_stream_config stream_config = {0};
struct sdw_port_config port_config = {0};
struct sdw_stream_runtime *sdw_stream;
int retval;
dev_dbg(dai->dev, "%s %s", __func__, dai->name);
sdw_stream = snd_soc_dai_get_dma_data(dai, substream);
if (!sdw_stream)
return -EINVAL;
if (!rt1316->sdw_slave)
return -EINVAL;
/* SoundWire specific configuration */
snd_sdw_params_to_config(substream, params, &stream_config, &port_config);
/* port 1 for playback */
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
port_config.num = 1;
else
port_config.num = 2;
retval = sdw_stream_add_slave(rt1316->sdw_slave, &stream_config,
&port_config, 1, sdw_stream);
if (retval) {
dev_err(dai->dev, "%s: Unable to configure port\n", __func__);
return retval;
}
return 0;
}
static int rt1316_sdw_pcm_hw_free(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct rt1316_sdw_priv *rt1316 =
snd_soc_component_get_drvdata(component);
struct sdw_stream_runtime *sdw_stream =
snd_soc_dai_get_dma_data(dai, substream);
if (!rt1316->sdw_slave)
return -EINVAL;
sdw_stream_remove_slave(rt1316->sdw_slave, sdw_stream);
return 0;
}
/*
* slave_ops: callbacks for get_clock_stop_mode, clock_stop and
* port_prep are not defined for now
*/
static const struct sdw_slave_ops rt1316_slave_ops = {
.read_prop = rt1316_read_prop,
.update_status = rt1316_update_status,
};
static int rt1316_sdw_parse_dt(struct rt1316_sdw_priv *rt1316, struct device *dev)
{
int ret = 0;
device_property_read_u32(dev, "realtek,bq-params-cnt", &rt1316->bq_params_cnt);
if (rt1316->bq_params_cnt) {
rt1316->bq_params = devm_kzalloc(dev, rt1316->bq_params_cnt, GFP_KERNEL);
if (!rt1316->bq_params) {
dev_err(dev, "%s: Could not allocate bq_params memory\n", __func__);
ret = -ENOMEM;
} else {
ret = device_property_read_u8_array(dev, "realtek,bq-params", rt1316->bq_params, rt1316->bq_params_cnt);
if (ret < 0)
dev_err(dev, "%s: Could not read list of realtek,bq-params\n", __func__);
}
}
dev_dbg(dev, "bq_params_cnt=%d\n", rt1316->bq_params_cnt);
return ret;
}
static int rt1316_sdw_component_probe(struct snd_soc_component *component)
{
struct rt1316_sdw_priv *rt1316 = snd_soc_component_get_drvdata(component);
int ret;
rt1316->component = component;
rt1316_sdw_parse_dt(rt1316, &rt1316->sdw_slave->dev);
if (!rt1316->first_hw_init)
return 0;
ret = pm_runtime_resume(component->dev);
if (ret < 0 && ret != -EACCES)
return ret;
/* apply BQ params */
rt1316_apply_bq_params(rt1316);
return 0;
}
static const struct snd_soc_component_driver soc_component_sdw_rt1316 = {
.probe = rt1316_sdw_component_probe,
.controls = rt1316_snd_controls,
.num_controls = ARRAY_SIZE(rt1316_snd_controls),
.dapm_widgets = rt1316_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(rt1316_dapm_widgets),
.dapm_routes = rt1316_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(rt1316_dapm_routes),
.endianness = 1,
};
static const struct snd_soc_dai_ops rt1316_aif_dai_ops = {
.hw_params = rt1316_sdw_hw_params,
.hw_free = rt1316_sdw_pcm_hw_free,
.set_stream = rt1316_set_sdw_stream,
.shutdown = rt1316_sdw_shutdown,
};
#define RT1316_STEREO_RATES SNDRV_PCM_RATE_48000
#define RT1316_FORMATS (SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_S24_LE)
static struct snd_soc_dai_driver rt1316_sdw_dai[] = {
{
.name = "rt1316-aif",
.playback = {
.stream_name = "DP1 Playback",
.channels_min = 1,
.channels_max = 2,
.rates = RT1316_STEREO_RATES,
.formats = RT1316_FORMATS,
},
.capture = {
.stream_name = "DP2 Capture",
.channels_min = 1,
.channels_max = 2,
.rates = RT1316_STEREO_RATES,
.formats = RT1316_FORMATS,
},
.ops = &rt1316_aif_dai_ops,
},
};
static int rt1316_sdw_init(struct device *dev, struct regmap *regmap,
struct sdw_slave *slave)
{
struct rt1316_sdw_priv *rt1316;
int ret;
rt1316 = devm_kzalloc(dev, sizeof(*rt1316), GFP_KERNEL);
if (!rt1316)
return -ENOMEM;
dev_set_drvdata(dev, rt1316);
rt1316->sdw_slave = slave;
rt1316->regmap = regmap;
regcache_cache_only(rt1316->regmap, true);
/*
* Mark hw_init to false
* HW init will be performed when device reports present
*/
rt1316->hw_init = false;
rt1316->first_hw_init = false;
ret = devm_snd_soc_register_component(dev,
&soc_component_sdw_rt1316,
rt1316_sdw_dai,
ARRAY_SIZE(rt1316_sdw_dai));
if (ret < 0)
return ret;
/* set autosuspend parameters */
pm_runtime_set_autosuspend_delay(dev, 3000);
pm_runtime_use_autosuspend(dev);
/* make sure the device does not suspend immediately */
pm_runtime_mark_last_busy(dev);
pm_runtime_enable(dev);
/* important note: the device is NOT tagged as 'active' and will remain
* 'suspended' until the hardware is enumerated/initialized. This is required
* to make sure the ASoC framework use of pm_runtime_get_sync() does not silently
* fail with -EACCESS because of race conditions between card creation and enumeration
*/
dev_dbg(dev, "%s\n", __func__);
return 0;
}
static int rt1316_sdw_probe(struct sdw_slave *slave,
const struct sdw_device_id *id)
{
struct regmap *regmap;
/* Regmap Initialization */
regmap = devm_regmap_init_sdw(slave, &rt1316_sdw_regmap);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
return rt1316_sdw_init(&slave->dev, regmap, slave);
}
static int rt1316_sdw_remove(struct sdw_slave *slave)
{
pm_runtime_disable(&slave->dev);
return 0;
}
static const struct sdw_device_id rt1316_id[] = {
SDW_SLAVE_ENTRY_EXT(0x025d, 0x1316, 0x3, 0x1, 0),
{},
};
MODULE_DEVICE_TABLE(sdw, rt1316_id);
static int __maybe_unused rt1316_dev_suspend(struct device *dev)
{
struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev);
if (!rt1316->hw_init)
return 0;
regcache_cache_only(rt1316->regmap, true);
return 0;
}
#define RT1316_PROBE_TIMEOUT 5000
static int __maybe_unused rt1316_dev_resume(struct device *dev)
{
struct sdw_slave *slave = dev_to_sdw_dev(dev);
struct rt1316_sdw_priv *rt1316 = dev_get_drvdata(dev);
unsigned long time;
if (!rt1316->first_hw_init)
return 0;
if (!slave->unattach_request)
goto regmap_sync;
time = wait_for_completion_timeout(&slave->initialization_complete,
msecs_to_jiffies(RT1316_PROBE_TIMEOUT));
if (!time) {
dev_err(&slave->dev, "%s: Initialization not complete, timed out\n", __func__);
sdw_show_ping_status(slave->bus, true);
return -ETIMEDOUT;
}
regmap_sync:
slave->unattach_request = 0;
regcache_cache_only(rt1316->regmap, false);
regcache_sync(rt1316->regmap);
return 0;
}
static const struct dev_pm_ops rt1316_pm = {
SET_SYSTEM_SLEEP_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume)
SET_RUNTIME_PM_OPS(rt1316_dev_suspend, rt1316_dev_resume, NULL)
};
static struct sdw_driver rt1316_sdw_driver = {
.driver = {
.name = "rt1316-sdca",
.pm = &rt1316_pm,
},
.probe = rt1316_sdw_probe,
.remove = rt1316_sdw_remove,
.ops = &rt1316_slave_ops,
.id_table = rt1316_id,
};
module_sdw_driver(rt1316_sdw_driver);
MODULE_DESCRIPTION("ASoC RT1316 driver SDCA SDW");
MODULE_AUTHOR("Shuming Fan <[email protected]>");
MODULE_LICENSE("GPL");
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