// SPDX-License-Identifier: GPL-2.0-only
//
// rt1017-sdca-sdw.c -- rt1017 SDCA ALSA SoC amplifier audio driver
//
// Copyright(c) 2023 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/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include "rt1017-sdca-sdw.h"
static bool rt1017_sdca_readable_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case 0x2f55:
case 0x3206:
case 0xc000:
case 0xc001:
case 0xc022:
case 0xc030:
case 0xc104:
case 0xc10b:
case 0xc10c:
case 0xc110:
case 0xc112:
case 0xc300:
case 0xc301:
case 0xc318:
case 0xc325 ... 0xc328:
case 0xc331:
case 0xc340:
case 0xc350 ... 0xc351:
case 0xc500:
case 0xc502:
case 0xc504:
case 0xc507:
case 0xc509:
case 0xc510:
case 0xc512:
case 0xc518:
case 0xc51b:
case 0xc51d:
case 0xc520:
case 0xc540 ... 0xc542:
case 0xc550 ... 0xc552:
case 0xc600:
case 0xc602:
case 0xc612:
case 0xc622:
case 0xc632:
case 0xc642:
case 0xc651:
case 0xca00:
case 0xca09 ... 0xca0c:
case 0xca0e ... 0xca0f:
case 0xca10 ... 0xca11:
case 0xca16 ... 0xca17:
case 0xcb00:
case 0xcc00:
case 0xcc02:
case 0xd017:
case 0xd01a ... 0xd01c:
case 0xd101:
case 0xd20c:
case 0xd300:
case 0xd370:
case 0xd500:
case 0xd545 ... 0xd548:
case 0xd5a5 ... 0xd5a8:
case 0xd5aa ... 0xd5ad:
case 0xda04 ... 0xda07:
case 0xda09 ... 0xda0a:
case 0xda0c ... 0xda0f:
case 0xda11 ... 0xda14:
case 0xda16 ... 0xda19:
case 0xdab6 ... 0xdabb:
case 0xdb09 ... 0xdb0a:
case 0xdb14:
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_UDMPU21,
RT1017_SDCA_CTL_UDMPU_CLUSTER, 0):
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_FU,
RT1017_SDCA_CTL_FU_MUTE, 0x01):
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_XU22,
RT1017_SDCA_CTL_BYPASS, 0):
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_SAPU29,
RT1017_SDCA_CTL_PROT_STAT, 0):
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_CS21,
RT1017_SDCA_CTL_FS_INDEX, 0):
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_PDE23,
RT1017_SDCA_CTL_REQ_POWER_STATE, 0):
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_PDE22,
RT1017_SDCA_CTL_REQ_POWER_STATE, 0):
return true;
default:
return false;
}
}
static bool rt1017_sdca_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case 0x2f55:
case 0xc000:
case 0xc022:
case 0xc351:
case 0xc518:
case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_SAPU29,
RT1017_SDCA_CTL_PROT_STAT, 0):
return true;
default:
return false;
}
}
static const struct reg_sequence rt1017_blind_write[] = {
{ 0xc001, 0x43 },
{ 0x2f55, 0x02 },
{ 0x3206, 0x80 },
{ 0x005f, 0x7f },
{ 0xd101, 0xa0 },
{ 0xc112, 0xc0 },
{ 0xc104, 0xaa },
{ 0xc110, 0x59 },
{ 0xc112, 0xc0 },
{ 0xc340, 0x80 },
{ 0xd017, 0x2c },
{ 0xd01a, 0xc8 },
{ 0xd01b, 0xcf },
{ 0xd01c, 0x0c },
{ 0xd20c, 0x14 },
{ 0xdb09, 0x0f },
{ 0xdb0a, 0x7f },
{ 0xdb14, 0x03 },
{ 0xcb00, 0x31 },
{ 0xc318, 0x44 },
{ 0xc325, 0xce },
{ 0xc326, 0x13 },
{ 0xc327, 0x5f },
{ 0xc328, 0xf3 },
{ 0xc350, 0xe1 },
{ 0xc351, 0x88 },
{ 0xc030, 0x14 },
{ 0xc331, 0xf2 },
{ 0xc551, 0x0f },
{ 0xc552, 0xff },
{ 0xc651, 0xc0 },
{ 0xc550, 0xd0 },
{ 0xc612, 0x00 },
{ 0xc622, 0x00 },
{ 0xc632, 0x00 },
{ 0xc642, 0x00 },
{ 0xc602, 0xf0 },
{ 0xc600, 0xd0 },
{ 0xcc02, 0x78 },
{ 0xcc00, 0x90 },
{ 0xc300, 0x3f },
{ 0xc301, 0x1d },
{ 0xc10b, 0x2e },
{ 0xc10c, 0x36 },
{ 0xd5a5, 0x00 },
{ 0xd5a6, 0x6a },
{ 0xd5a7, 0xaa },
{ 0xd5a8, 0xaa },
{ 0xd5aa, 0x00 },
{ 0xd5ab, 0x16 },
{ 0xd5ac, 0xdb },
{ 0xd5ad, 0x6d },
{ 0xd545, 0x09 },
{ 0xd546, 0x30 },
{ 0xd547, 0xf0 },
{ 0xd548, 0xf0 },
{ 0xd500, 0x20 },
{ 0xc504, 0x3f },
{ 0xc540, 0x00 },
{ 0xc541, 0x0a },
{ 0xc542, 0x1a },
{ 0xc512, 0x00 },
{ 0xc520, 0x40 },
{ 0xc51b, 0x7f },
{ 0xc51d, 0x0f },
{ 0xc500, 0x40 },
{ 0xc502, 0xde },
{ 0xc507, 0x05 },
{ 0xc509, 0x05 },
{ 0xc510, 0x40 },
{ 0xc518, 0xc0 },
{ 0xc500, 0xc0 },
{ 0xda0c, 0x00 },
{ 0xda0d, 0x0b },
{ 0xda0e, 0x55 },
{ 0xda0f, 0x55 },
{ 0xda04, 0x00 },
{ 0xda05, 0x51 },
{ 0xda06, 0xeb },
{ 0xda07, 0x85 },
{ 0xca16, 0x0f },
{ 0xca17, 0x00 },
{ 0xda09, 0x5d },
{ 0xda0a, 0xc0 },
{ 0xda11, 0x26 },
{ 0xda12, 0x66 },
{ 0xda13, 0x66 },
{ 0xda14, 0x66 },
{ 0xda16, 0x79 },
{ 0xda17, 0x99 },
{ 0xda18, 0x99 },
{ 0xda19, 0x99 },
{ 0xca09, 0x00 },
{ 0xca0a, 0x07 },
{ 0xca0b, 0x89 },
{ 0xca0c, 0x61 },
{ 0xca0e, 0x00 },
{ 0xca0f, 0x03 },
{ 0xca10, 0xc4 },
{ 0xca11, 0xb0 },
{ 0xdab6, 0x00 },
{ 0xdab7, 0x01 },
{ 0xdab8, 0x00 },
{ 0xdab9, 0x00 },
{ 0xdaba, 0x00 },
{ 0xdabb, 0x00 },
{ 0xd017, 0x0e },
{ 0xca00, 0xcd },
{ 0xc022, 0x84 },
};
#define RT1017_MAX_REG_NUM 0x4108ffff
static const struct regmap_config rt1017_sdca_regmap = {
.reg_bits = 32,
.val_bits = 8,
.readable_reg = rt1017_sdca_readable_register,
.volatile_reg = rt1017_sdca_volatile_register,
.max_register = RT1017_MAX_REG_NUM,
.reg_defaults = rt1017_sdca_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(rt1017_sdca_reg_defaults),
.cache_type = REGCACHE_MAPLE,
.use_single_read = true,
.use_single_write = true,
};
static int rt1017_sdca_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
* port = 1 for AMP playback
* port = 2 for IV capture
*/
prop->source_ports = BIT(2); /* BITMAP: 00000100 */
prop->sink_ports = BIT(1); /* 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 = 64;
return 0;
}
static int rt1017_sdca_io_init(struct device *dev, struct sdw_slave *slave)
{
struct rt1017_sdca_priv *rt1017 = dev_get_drvdata(dev);
if (rt1017->hw_init)
return 0;
if (rt1017->first_hw_init) {
regcache_cache_only(rt1017->regmap, false);
regcache_cache_bypass(rt1017->regmap, true);
} else {
/*
* PM runtime is only enabled when a Slave reports as Attached
*/
/* set autosuspend parameters */
pm_runtime_set_autosuspend_delay(&slave->dev, 3000);
pm_runtime_use_autosuspend(&slave->dev);
/* update count of parent 'active' children */
pm_runtime_set_active(&slave->dev);
/* make sure the device does not suspend immediately */
pm_runtime_mark_last_busy(&slave->dev);
pm_runtime_enable(&slave->dev);
}
pm_runtime_get_noresume(&slave->dev);
/* sw reset */
regmap_write(rt1017->regmap, 0xc000, 0x02);
/* initial settings - blind write */
regmap_multi_reg_write(rt1017->regmap, rt1017_blind_write,
ARRAY_SIZE(rt1017_blind_write));
if (rt1017->first_hw_init) {
regcache_cache_bypass(rt1017->regmap, false);
regcache_mark_dirty(rt1017->regmap);
} else
rt1017->first_hw_init = true;
/* Mark Slave initialization complete */
rt1017->hw_init = true;
pm_runtime_mark_last_busy(&slave->dev);
pm_runtime_put_autosuspend(&slave->dev);
dev_dbg(&slave->dev, "hw_init complete\n");
return 0;
}
static int rt1017_sdca_update_status(struct sdw_slave *slave,
enum sdw_slave_status status)
{
struct rt1017_sdca_priv *rt1017 = dev_get_drvdata(&slave->dev);
if (status == SDW_SLAVE_UNATTACHED)
rt1017->hw_init = false;
/*
* Perform initialization only if slave status is present and
* hw_init flag is false
*/
if (rt1017->hw_init || status != SDW_SLAVE_ATTACHED)
return 0;
/* perform I/O transfers required for Slave initialization */
return rt1017_sdca_io_init(&slave->dev, slave);
}
static const char * const rt1017_rx_data_ch_select[] = {
"Bypass",
"CN1",
"CN2",
"CN3",
"CN4",
"(1+2)/2",
"(1+3)/2",
"(1+4)/2",
"(2+3)/2",
"(2+4)/2",
"(3+4)/2",
};
static SOC_ENUM_SINGLE_DECL(rt1017_rx_data_ch_enum,
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_UDMPU21,
RT1017_SDCA_CTL_UDMPU_CLUSTER, 0),
0, rt1017_rx_data_ch_select);
static const struct snd_kcontrol_new rt1017_sdca_controls[] = {
/* UDMPU Cluster Selection */
SOC_ENUM("RX Channel Select", rt1017_rx_data_ch_enum),
};
static const struct snd_kcontrol_new rt1017_sto_dac =
SOC_DAPM_SINGLE("Switch",
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_FU, RT1017_SDCA_CTL_FU_MUTE, 0x1),
0, 1, 1);
static int rt1017_sdca_pde23_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 rt1017_sdca_priv *rt1017 = snd_soc_component_get_drvdata(component);
unsigned char ps0 = 0x0, ps3 = 0x3;
switch (event) {
case SND_SOC_DAPM_POST_PMU:
regmap_write(rt1017->regmap,
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_PDE23,
RT1017_SDCA_CTL_REQ_POWER_STATE, 0),
ps0);
break;
case SND_SOC_DAPM_PRE_PMD:
regmap_write(rt1017->regmap,
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_PDE23,
RT1017_SDCA_CTL_REQ_POWER_STATE, 0),
ps3);
break;
default:
break;
}
return 0;
}
static int rt1017_sdca_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 rt1017_sdca_priv *rt1017 = snd_soc_component_get_drvdata(component);
switch (event) {
case SND_SOC_DAPM_POST_PMU:
regmap_update_bits(rt1017->regmap, RT1017_PWM_TRIM_1,
RT1017_PWM_FREQ_CTL_SRC_SEL_MASK, RT1017_PWM_FREQ_CTL_SRC_SEL_REG);
regmap_write(rt1017->regmap, RT1017_CLASSD_INT_1, 0x10);
break;
default:
break;
}
return 0;
}
static int rt1017_sdca_feedback_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 rt1017_sdca_priv *rt1017 = snd_soc_component_get_drvdata(component);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
regmap_update_bits(rt1017->regmap, 0xd017, 0x1f, 0x08);
break;
case SND_SOC_DAPM_POST_PMD:
regmap_update_bits(rt1017->regmap, 0xd017, 0x1f, 0x09);
break;
default:
break;
}
return 0;
}
static const struct snd_soc_dapm_widget rt1017_sdca_dapm_widgets[] = {
/* Audio Interface */
SND_SOC_DAPM_AIF_IN("DP1RX", "DP1 Playback", 0, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_AIF_OUT_E("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0,
rt1017_sdca_feedback_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
/* Digital Interface */
SND_SOC_DAPM_SWITCH("DAC", SND_SOC_NOPM, 0, 0, &rt1017_sto_dac),
/* Output Lines */
SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0,
rt1017_sdca_classd_event, SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_OUTPUT("SPO"),
SND_SOC_DAPM_SUPPLY("PDE23", SND_SOC_NOPM, 0, 0,
rt1017_sdca_pde23_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 rt1017_sdca_dapm_routes[] = {
{ "DAC", "Switch", "DP1RX" },
{ "CLASS D", NULL, "DAC" },
{ "CLASS D", NULL, "PDE23" },
{ "SPO", NULL, "CLASS D" },
{ "I Sense", NULL, "I Gen" },
{ "V Sense", NULL, "V Gen" },
{ "I Sense", NULL, "PDE23" },
{ "V Sense", NULL, "PDE23" },
{ "DP2TX", NULL, "I Sense" },
{ "DP2TX", NULL, "V Sense" },
};
static const struct sdw_slave_ops rt1017_sdca_slave_ops = {
.read_prop = rt1017_sdca_read_prop,
.update_status = rt1017_sdca_update_status,
};
static int rt1017_sdca_component_probe(struct snd_soc_component *component)
{
int ret;
ret = pm_runtime_resume(component->dev);
if (ret < 0 && ret != -EACCES)
return ret;
return 0;
}
static void rt1017_sdca_component_remove(struct snd_soc_component *component)
{
struct rt1017_sdca_priv *rt1017 = snd_soc_component_get_drvdata(component);
regcache_cache_only(rt1017->regmap, true);
}
static const struct snd_soc_component_driver soc_sdca_component_rt1017 = {
.probe = rt1017_sdca_component_probe,
.remove = rt1017_sdca_component_remove,
.controls = rt1017_sdca_controls,
.num_controls = ARRAY_SIZE(rt1017_sdca_controls),
.dapm_widgets = rt1017_sdca_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(rt1017_sdca_dapm_widgets),
.dapm_routes = rt1017_sdca_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(rt1017_sdca_dapm_routes),
.endianness = 1,
};
static int rt1017_sdca_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 rt1017_sdca_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
snd_soc_dai_set_dma_data(dai, substream, NULL);
}
static int rt1017_sdca_pcm_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 rt1017_sdca_priv *rt1017 = snd_soc_component_get_drvdata(component);
struct sdw_stream_config stream_config;
struct sdw_port_config port_config;
enum sdw_data_direction direction;
struct sdw_stream_runtime *sdw_stream;
int retval, port, num_channels, ch_mask;
unsigned int sampling_rate;
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 (!rt1017->sdw_slave)
return -EINVAL;
/* SoundWire specific configuration */
/* port 1 for playback */
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
direction = SDW_DATA_DIR_RX;
port = 1;
} else {
direction = SDW_DATA_DIR_TX;
port = 2;
}
num_channels = params_channels(params);
ch_mask = (1 << num_channels) - 1;
stream_config.frame_rate = params_rate(params);
stream_config.ch_count = num_channels;
stream_config.bps = snd_pcm_format_width(params_format(params));
stream_config.direction = direction;
port_config.ch_mask = ch_mask;
port_config.num = port;
dev_dbg(dai->dev, "frame_rate %d, ch_count %d, bps %d, direction %d, ch_mask %d, port: %d\n",
params_rate(params), num_channels, snd_pcm_format_width(params_format(params)),
direction, ch_mask, port);
retval = sdw_stream_add_slave(rt1017->sdw_slave, &stream_config,
&port_config, 1, sdw_stream);
if (retval) {
dev_err(dai->dev, "Unable to configure port\n");
return retval;
}
/* sampling rate configuration */
switch (params_rate(params)) {
case 44100:
sampling_rate = RT1017_SDCA_RATE_44100HZ;
break;
case 48000:
sampling_rate = RT1017_SDCA_RATE_48000HZ;
break;
case 96000:
sampling_rate = RT1017_SDCA_RATE_96000HZ;
break;
case 192000:
sampling_rate = RT1017_SDCA_RATE_192000HZ;
break;
default:
dev_err(component->dev, "Rate %d is not supported\n",
params_rate(params));
return -EINVAL;
}
/* set sampling frequency */
regmap_write(rt1017->regmap,
SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_CS21,
RT1017_SDCA_CTL_FS_INDEX, 0),
sampling_rate);
return 0;
}
static int rt1017_sdca_pcm_hw_free(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct rt1017_sdca_priv *rt1017 = snd_soc_component_get_drvdata(component);
struct sdw_stream_runtime *sdw_stream =
snd_soc_dai_get_dma_data(dai, substream);
if (!rt1017->sdw_slave)
return -EINVAL;
sdw_stream_remove_slave(rt1017->sdw_slave, sdw_stream);
return 0;
}
static const struct snd_soc_dai_ops rt1017_sdca_ops = {
.hw_params = rt1017_sdca_pcm_hw_params,
.hw_free = rt1017_sdca_pcm_hw_free,
.set_stream = rt1017_sdca_set_sdw_stream,
.shutdown = rt1017_sdca_shutdown,
};
#define RT1017_STEREO_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \
SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000)
#define RT1017_FORMATS (SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_S24_LE)
static struct snd_soc_dai_driver rt1017_sdca_dai[] = {
{
.name = "rt1017-aif",
.playback = {
.stream_name = "DP1 Playback",
.channels_min = 1,
.channels_max = 1,
.rates = RT1017_STEREO_RATES,
.formats = RT1017_FORMATS,
},
.capture = {
.stream_name = "DP2 Capture",
.channels_min = 1,
.channels_max = 1,
.rates = RT1017_STEREO_RATES,
.formats = RT1017_FORMATS,
},
.ops = &rt1017_sdca_ops,
},
};
static int rt1017_sdca_init(struct device *dev, struct regmap *regmap,
struct sdw_slave *slave)
{
struct rt1017_sdca_priv *rt1017;
int ret;
rt1017 = devm_kzalloc(dev, sizeof(*rt1017), GFP_KERNEL);
if (!rt1017)
return -ENOMEM;
dev_set_drvdata(dev, rt1017);
rt1017->sdw_slave = slave;
rt1017->regmap = regmap;
/*
* Mark hw_init to false
* HW init will be performed when device reports present
*/
rt1017->hw_init = false;
rt1017->first_hw_init = false;
ret = devm_snd_soc_register_component(dev,
&soc_sdca_component_rt1017,
rt1017_sdca_dai,
ARRAY_SIZE(rt1017_sdca_dai));
return ret;
}
static int rt1017_sdca_sdw_probe(struct sdw_slave *slave,
const struct sdw_device_id *id)
{
struct regmap *regmap;
/* Regmap Initialization */
regmap = devm_regmap_init_sdw(slave, &rt1017_sdca_regmap);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
return rt1017_sdca_init(&slave->dev, regmap, slave);
}
static int rt1017_sdca_sdw_remove(struct sdw_slave *slave)
{
struct rt1017_sdca_priv *rt1017 = dev_get_drvdata(&slave->dev);
if (rt1017->first_hw_init)
pm_runtime_disable(&slave->dev);
return 0;
}
static const struct sdw_device_id rt1017_sdca_id[] = {
SDW_SLAVE_ENTRY_EXT(0x025d, 0x1017, 0x3, 0x1, 0),
{},
};
MODULE_DEVICE_TABLE(sdw, rt1017_sdca_id);
static int __maybe_unused rt1017_sdca_dev_suspend(struct device *dev)
{
struct rt1017_sdca_priv *rt1017 = dev_get_drvdata(dev);
if (!rt1017->hw_init)
return 0;
regcache_cache_only(rt1017->regmap, true);
return 0;
}
#define RT1017_PROBE_TIMEOUT 5000
static int __maybe_unused rt1017_sdca_dev_resume(struct device *dev)
{
struct sdw_slave *slave = dev_to_sdw_dev(dev);
struct rt1017_sdca_priv *rt1017 = dev_get_drvdata(dev);
unsigned long time;
if (!rt1017->first_hw_init)
return 0;
if (!slave->unattach_request)
goto regmap_sync;
time = wait_for_completion_timeout(&slave->initialization_complete,
msecs_to_jiffies(RT1017_PROBE_TIMEOUT));
if (!time) {
dev_err(&slave->dev, "Initialization not complete, timed out\n");
sdw_show_ping_status(slave->bus, true);
return -ETIMEDOUT;
}
regmap_sync:
slave->unattach_request = 0;
regcache_cache_only(rt1017->regmap, false);
regcache_sync(rt1017->regmap);
return 0;
}
static const struct dev_pm_ops rt1017_sdca_pm = {
SET_SYSTEM_SLEEP_PM_OPS(rt1017_sdca_dev_suspend, rt1017_sdca_dev_resume)
SET_RUNTIME_PM_OPS(rt1017_sdca_dev_suspend, rt1017_sdca_dev_resume, NULL)
};
static struct sdw_driver rt1017_sdca_sdw_driver = {
.driver = {
.name = "rt1017-sdca",
.pm = &rt1017_sdca_pm,
},
.probe = rt1017_sdca_sdw_probe,
.remove = rt1017_sdca_sdw_remove,
.ops = &rt1017_sdca_slave_ops,
.id_table = rt1017_sdca_id,
};
module_sdw_driver(rt1017_sdca_sdw_driver);
MODULE_DESCRIPTION("ASoC RT1017 driver SDCA SDW");
MODULE_AUTHOR("Derek Fang <[email protected]>");
MODULE_LICENSE("GPL");
Codebase Browser
linux