--- /dev/null
+// 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 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",
+ .owner = THIS_MODULE,
+ .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 <derek.fang@realtek.com>");
+MODULE_LICENSE("GPL");
projects / platform / kernel / linux-starfive.git / commitdiff