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1// SPDX-License-Identifier: GPL-2.0-only2//3// rt1017-sdca-sdw.c -- rt1017 SDCA ALSA SoC amplifier audio driver4//5// Copyright(c) 2023 Realtek Semiconductor Corp.6//7//8#include <linux/delay.h>9#include <linux/device.h>10#include <linux/pm_runtime.h>11#include <linux/mod_devicetable.h>12#include <linux/module.h>13#include <linux/regmap.h>14#include <sound/core.h>15#include <sound/pcm.h>16#include <sound/pcm_params.h>17#include <sound/soc.h>18#include <sound/soc-dapm.h>19#include <sound/initval.h>20#include <sound/tlv.h>21 22#include "rt1017-sdca-sdw.h"23 24static bool rt1017_sdca_readable_register(struct device *dev, unsigned int reg)25{26	switch (reg) {27	case 0x2f55:28	case 0x3206:29	case 0xc000:30	case 0xc001:31	case 0xc022:32	case 0xc030:33	case 0xc104:34	case 0xc10b:35	case 0xc10c:36	case 0xc110:37	case 0xc112:38	case 0xc300:39	case 0xc301:40	case 0xc318:41	case 0xc325 ... 0xc328:42	case 0xc331:43	case 0xc340:44	case 0xc350 ... 0xc351:45	case 0xc500:46	case 0xc502:47	case 0xc504:48	case 0xc507:49	case 0xc509:50	case 0xc510:51	case 0xc512:52	case 0xc518:53	case 0xc51b:54	case 0xc51d:55	case 0xc520:56	case 0xc540 ... 0xc542:57	case 0xc550 ... 0xc552:58	case 0xc600:59	case 0xc602:60	case 0xc612:61	case 0xc622:62	case 0xc632:63	case 0xc642:64	case 0xc651:65	case 0xca00:66	case 0xca09 ... 0xca0c:67	case 0xca0e ... 0xca0f:68	case 0xca10 ... 0xca11:69	case 0xca16 ... 0xca17:70	case 0xcb00:71	case 0xcc00:72	case 0xcc02:73	case 0xd017:74	case 0xd01a ... 0xd01c:75	case 0xd101:76	case 0xd20c:77	case 0xd300:78	case 0xd370:79	case 0xd500:80	case 0xd545 ... 0xd548:81	case 0xd5a5 ... 0xd5a8:82	case 0xd5aa ... 0xd5ad:83	case 0xda04 ... 0xda07:84	case 0xda09 ... 0xda0a:85	case 0xda0c ... 0xda0f:86	case 0xda11 ... 0xda14:87	case 0xda16 ... 0xda19:88	case 0xdab6 ... 0xdabb:89	case 0xdb09 ... 0xdb0a:90	case 0xdb14:91 92	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_UDMPU21,93			RT1017_SDCA_CTL_UDMPU_CLUSTER, 0):94	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_FU,95			RT1017_SDCA_CTL_FU_MUTE, 0x01):96	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_XU22,97			RT1017_SDCA_CTL_BYPASS, 0):98	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_SAPU29,99			RT1017_SDCA_CTL_PROT_STAT, 0):100	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_CS21,101			RT1017_SDCA_CTL_FS_INDEX, 0):102	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_PDE23,103			RT1017_SDCA_CTL_REQ_POWER_STATE, 0):104	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_PDE22,105			RT1017_SDCA_CTL_REQ_POWER_STATE, 0):106		return true;107	default:108		return false;109	}110}111 112static bool rt1017_sdca_volatile_register(struct device *dev, unsigned int reg)113{114	switch (reg) {115	case 0x2f55:116	case 0xc000:117	case 0xc022:118	case 0xc351:119	case 0xc518:120	case SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_SAPU29,121			RT1017_SDCA_CTL_PROT_STAT, 0):122		return true;123	default:124		return false;125	}126}127 128static const struct reg_sequence rt1017_blind_write[] = {129	{ 0xc001, 0x43 },130	{ 0x2f55, 0x02 },131	{ 0x3206, 0x80 },132	{ 0x005f, 0x7f },133	{ 0xd101, 0xa0 },134	{ 0xc112, 0xc0 },135	{ 0xc104, 0xaa },136	{ 0xc110, 0x59 },137	{ 0xc112, 0xc0 },138	{ 0xc340, 0x80 },139	{ 0xd017, 0x2c },140	{ 0xd01a, 0xc8 },141	{ 0xd01b, 0xcf },142	{ 0xd01c, 0x0c },143	{ 0xd20c, 0x14 },144	{ 0xdb09, 0x0f },145	{ 0xdb0a, 0x7f },146	{ 0xdb14, 0x03 },147	{ 0xcb00, 0x31 },148	{ 0xc318, 0x44 },149	{ 0xc325, 0xce },150	{ 0xc326, 0x13 },151	{ 0xc327, 0x5f },152	{ 0xc328, 0xf3 },153	{ 0xc350, 0xe1 },154	{ 0xc351, 0x88 },155	{ 0xc030, 0x14 },156	{ 0xc331, 0xf2 },157	{ 0xc551, 0x0f },158	{ 0xc552, 0xff },159	{ 0xc651, 0xc0 },160	{ 0xc550, 0xd0 },161	{ 0xc612, 0x00 },162	{ 0xc622, 0x00 },163	{ 0xc632, 0x00 },164	{ 0xc642, 0x00 },165	{ 0xc602, 0xf0 },166	{ 0xc600, 0xd0 },167	{ 0xcc02, 0x78 },168	{ 0xcc00, 0x90 },169	{ 0xc300, 0x3f },170	{ 0xc301, 0x1d },171	{ 0xc10b, 0x2e },172	{ 0xc10c, 0x36 },173 174	{ 0xd5a5, 0x00 },175	{ 0xd5a6, 0x6a },176	{ 0xd5a7, 0xaa },177	{ 0xd5a8, 0xaa },178	{ 0xd5aa, 0x00 },179	{ 0xd5ab, 0x16 },180	{ 0xd5ac, 0xdb },181	{ 0xd5ad, 0x6d },182	{ 0xd545, 0x09 },183	{ 0xd546, 0x30 },184	{ 0xd547, 0xf0 },185	{ 0xd548, 0xf0 },186	{ 0xd500, 0x20 },187	{ 0xc504, 0x3f },188	{ 0xc540, 0x00 },189	{ 0xc541, 0x0a },190	{ 0xc542, 0x1a },191	{ 0xc512, 0x00 },192	{ 0xc520, 0x40 },193	{ 0xc51b, 0x7f },194	{ 0xc51d, 0x0f },195	{ 0xc500, 0x40 },196	{ 0xc502, 0xde },197	{ 0xc507, 0x05 },198	{ 0xc509, 0x05 },199	{ 0xc510, 0x40 },200	{ 0xc518, 0xc0 },201	{ 0xc500, 0xc0 },202 203	{ 0xda0c, 0x00 },204	{ 0xda0d, 0x0b },205	{ 0xda0e, 0x55 },206	{ 0xda0f, 0x55 },207	{ 0xda04, 0x00 },208	{ 0xda05, 0x51 },209	{ 0xda06, 0xeb },210	{ 0xda07, 0x85 },211	{ 0xca16, 0x0f },212	{ 0xca17, 0x00 },213	{ 0xda09, 0x5d },214	{ 0xda0a, 0xc0 },215	{ 0xda11, 0x26 },216	{ 0xda12, 0x66 },217	{ 0xda13, 0x66 },218	{ 0xda14, 0x66 },219	{ 0xda16, 0x79 },220	{ 0xda17, 0x99 },221	{ 0xda18, 0x99 },222	{ 0xda19, 0x99 },223	{ 0xca09, 0x00 },224	{ 0xca0a, 0x07 },225	{ 0xca0b, 0x89 },226	{ 0xca0c, 0x61 },227	{ 0xca0e, 0x00 },228	{ 0xca0f, 0x03 },229	{ 0xca10, 0xc4 },230	{ 0xca11, 0xb0 },231	{ 0xdab6, 0x00 },232	{ 0xdab7, 0x01 },233	{ 0xdab8, 0x00 },234	{ 0xdab9, 0x00 },235	{ 0xdaba, 0x00 },236	{ 0xdabb, 0x00 },237	{ 0xd017, 0x0e },238	{ 0xca00, 0xcd },239	{ 0xc022, 0x84 },240};241 242#define RT1017_MAX_REG_NUM 0x4108ffff243 244static const struct regmap_config rt1017_sdca_regmap = {245	.reg_bits = 32,246	.val_bits = 8,247	.readable_reg = rt1017_sdca_readable_register,248	.volatile_reg = rt1017_sdca_volatile_register,249	.max_register = RT1017_MAX_REG_NUM,250	.reg_defaults = rt1017_sdca_reg_defaults,251	.num_reg_defaults = ARRAY_SIZE(rt1017_sdca_reg_defaults),252	.cache_type = REGCACHE_MAPLE,253	.use_single_read = true,254	.use_single_write = true,255};256 257static int rt1017_sdca_read_prop(struct sdw_slave *slave)258{259	struct sdw_slave_prop *prop = &slave->prop;260	int nval;261	int i, j;262	u32 bit;263	unsigned long addr;264	struct sdw_dpn_prop *dpn;265 266	prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;267	prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;268 269	prop->paging_support = true;270 271	/* first we need to allocate memory for set bits in port lists272	 * port = 1 for AMP playback273	 * port = 2 for IV capture274	 */275	prop->source_ports = BIT(2); /* BITMAP: 00000100 */276	prop->sink_ports = BIT(1);   /* BITMAP: 00000010 */277 278	nval = hweight32(prop->source_ports);279	prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,280		sizeof(*prop->src_dpn_prop), GFP_KERNEL);281	if (!prop->src_dpn_prop)282		return -ENOMEM;283 284	i = 0;285	dpn = prop->src_dpn_prop;286	addr = prop->source_ports;287	for_each_set_bit(bit, &addr, 32) {288		dpn[i].num = bit;289		dpn[i].type = SDW_DPN_FULL;290		dpn[i].simple_ch_prep_sm = true;291		dpn[i].ch_prep_timeout = 10;292		i++;293	}294 295	/* do this again for sink now */296	nval = hweight32(prop->sink_ports);297	prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,298		sizeof(*prop->sink_dpn_prop), GFP_KERNEL);299	if (!prop->sink_dpn_prop)300		return -ENOMEM;301 302	j = 0;303	dpn = prop->sink_dpn_prop;304	addr = prop->sink_ports;305	for_each_set_bit(bit, &addr, 32) {306		dpn[j].num = bit;307		dpn[j].type = SDW_DPN_FULL;308		dpn[j].simple_ch_prep_sm = true;309		dpn[j].ch_prep_timeout = 10;310		j++;311	}312 313	/* set the timeout values */314	prop->clk_stop_timeout = 64;315 316	return 0;317}318 319static int rt1017_sdca_io_init(struct device *dev, struct sdw_slave *slave)320{321	struct rt1017_sdca_priv *rt1017 = dev_get_drvdata(dev);322 323	if (rt1017->hw_init)324		return 0;325 326	if (rt1017->first_hw_init) {327		regcache_cache_only(rt1017->regmap, false);328		regcache_cache_bypass(rt1017->regmap, true);329	} else {330		/*331		 * PM runtime is only enabled when a Slave reports as Attached332		 */333 334		/* set autosuspend parameters */335		pm_runtime_set_autosuspend_delay(&slave->dev, 3000);336		pm_runtime_use_autosuspend(&slave->dev);337 338		/* update count of parent 'active' children */339		pm_runtime_set_active(&slave->dev);340 341		/* make sure the device does not suspend immediately */342		pm_runtime_mark_last_busy(&slave->dev);343 344		pm_runtime_enable(&slave->dev);345	}346 347	pm_runtime_get_noresume(&slave->dev);348 349	/* sw reset */350	regmap_write(rt1017->regmap, 0xc000, 0x02);351 352	/* initial settings - blind write */353	regmap_multi_reg_write(rt1017->regmap, rt1017_blind_write,354		ARRAY_SIZE(rt1017_blind_write));355 356	if (rt1017->first_hw_init) {357		regcache_cache_bypass(rt1017->regmap, false);358		regcache_mark_dirty(rt1017->regmap);359	} else360		rt1017->first_hw_init = true;361 362	/* Mark Slave initialization complete */363	rt1017->hw_init = true;364 365	pm_runtime_mark_last_busy(&slave->dev);366	pm_runtime_put_autosuspend(&slave->dev);367 368	dev_dbg(&slave->dev, "hw_init complete\n");369	return 0;370}371 372static int rt1017_sdca_update_status(struct sdw_slave *slave,373				enum sdw_slave_status status)374{375	struct  rt1017_sdca_priv *rt1017 = dev_get_drvdata(&slave->dev);376 377	if (status == SDW_SLAVE_UNATTACHED)378		rt1017->hw_init = false;379 380	/*381	 * Perform initialization only if slave status is present and382	 * hw_init flag is false383	 */384	if (rt1017->hw_init || status != SDW_SLAVE_ATTACHED)385		return 0;386 387	/* perform I/O transfers required for Slave initialization */388	return rt1017_sdca_io_init(&slave->dev, slave);389}390 391static const char * const rt1017_rx_data_ch_select[] = {392	"Bypass",393	"CN1",394	"CN2",395	"CN3",396	"CN4",397	"(1+2)/2",398	"(1+3)/2",399	"(1+4)/2",400	"(2+3)/2",401	"(2+4)/2",402	"(3+4)/2",403};404 405static SOC_ENUM_SINGLE_DECL(rt1017_rx_data_ch_enum,406			SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_UDMPU21,407				RT1017_SDCA_CTL_UDMPU_CLUSTER, 0),408			0, rt1017_rx_data_ch_select);409 410static const struct snd_kcontrol_new rt1017_sdca_controls[] = {411	/* UDMPU Cluster Selection */412	SOC_ENUM("RX Channel Select", rt1017_rx_data_ch_enum),413};414 415static const struct snd_kcontrol_new rt1017_sto_dac =416	SOC_DAPM_SINGLE("Switch",417		SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_FU, RT1017_SDCA_CTL_FU_MUTE, 0x1),418		0, 1, 1);419 420static int rt1017_sdca_pde23_event(struct snd_soc_dapm_widget *w,421				struct snd_kcontrol *kcontrol, int event)422{423	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);424	struct rt1017_sdca_priv *rt1017 = snd_soc_component_get_drvdata(component);425	unsigned char ps0 = 0x0, ps3 = 0x3;426 427	switch (event) {428	case SND_SOC_DAPM_POST_PMU:429		regmap_write(rt1017->regmap,430			SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_PDE23,431				RT1017_SDCA_CTL_REQ_POWER_STATE, 0),432				ps0);433		break;434	case SND_SOC_DAPM_PRE_PMD:435		regmap_write(rt1017->regmap,436			SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_PDE23,437				RT1017_SDCA_CTL_REQ_POWER_STATE, 0),438				ps3);439		break;440	default:441		break;442	}443	return 0;444}445 446static int rt1017_sdca_classd_event(struct snd_soc_dapm_widget *w,447				struct snd_kcontrol *kcontrol, int event)448{449	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);450	struct rt1017_sdca_priv *rt1017 = snd_soc_component_get_drvdata(component);451 452	switch (event) {453	case SND_SOC_DAPM_POST_PMU:454		regmap_update_bits(rt1017->regmap, RT1017_PWM_TRIM_1,455			RT1017_PWM_FREQ_CTL_SRC_SEL_MASK, RT1017_PWM_FREQ_CTL_SRC_SEL_REG);456		regmap_write(rt1017->regmap, RT1017_CLASSD_INT_1, 0x10);457		break;458	default:459		break;460	}461 462	return 0;463}464 465static int rt1017_sdca_feedback_event(struct snd_soc_dapm_widget *w,466				struct snd_kcontrol *kcontrol, int event)467{468	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);469	struct rt1017_sdca_priv *rt1017 = snd_soc_component_get_drvdata(component);470 471	switch (event) {472	case SND_SOC_DAPM_PRE_PMU:473		regmap_update_bits(rt1017->regmap, 0xd017, 0x1f, 0x08);474		break;475	case SND_SOC_DAPM_POST_PMD:476		regmap_update_bits(rt1017->regmap, 0xd017, 0x1f, 0x09);477		break;478	default:479		break;480	}481 482	return 0;483}484 485static const struct snd_soc_dapm_widget rt1017_sdca_dapm_widgets[] = {486	/* Audio Interface */487	SND_SOC_DAPM_AIF_IN("DP1RX", "DP1 Playback", 0, SND_SOC_NOPM, 0, 0),488	SND_SOC_DAPM_AIF_OUT_E("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0,489		rt1017_sdca_feedback_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),490 491	/* Digital Interface */492	SND_SOC_DAPM_SWITCH("DAC", SND_SOC_NOPM, 0, 0, &rt1017_sto_dac),493 494	/* Output Lines */495	SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0,496		rt1017_sdca_classd_event, SND_SOC_DAPM_POST_PMU),497	SND_SOC_DAPM_OUTPUT("SPO"),498 499	SND_SOC_DAPM_SUPPLY("PDE23", SND_SOC_NOPM, 0, 0,500		rt1017_sdca_pde23_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),501 502	SND_SOC_DAPM_PGA("I Sense", SND_SOC_NOPM, 0, 0, NULL, 0),503	SND_SOC_DAPM_PGA("V Sense", SND_SOC_NOPM, 0, 0, NULL, 0),504	SND_SOC_DAPM_SIGGEN("I Gen"),505	SND_SOC_DAPM_SIGGEN("V Gen"),506};507 508static const struct snd_soc_dapm_route rt1017_sdca_dapm_routes[] = {509 510	{ "DAC", "Switch", "DP1RX" },511	{ "CLASS D", NULL, "DAC" },512	{ "CLASS D", NULL, "PDE23" },513	{ "SPO", NULL, "CLASS D" },514 515	{ "I Sense", NULL, "I Gen" },516	{ "V Sense", NULL, "V Gen" },517	{ "I Sense", NULL, "PDE23" },518	{ "V Sense", NULL, "PDE23" },519	{ "DP2TX", NULL, "I Sense" },520	{ "DP2TX", NULL, "V Sense" },521};522 523static const struct sdw_slave_ops rt1017_sdca_slave_ops = {524	.read_prop = rt1017_sdca_read_prop,525	.update_status = rt1017_sdca_update_status,526};527 528static int rt1017_sdca_component_probe(struct snd_soc_component *component)529{530	int ret;531 532	ret = pm_runtime_resume(component->dev);533	if (ret < 0 && ret != -EACCES)534		return ret;535 536	return 0;537}538 539static void rt1017_sdca_component_remove(struct snd_soc_component *component)540{541	struct rt1017_sdca_priv *rt1017 = snd_soc_component_get_drvdata(component);542 543	regcache_cache_only(rt1017->regmap, true);544}545 546static const struct snd_soc_component_driver soc_sdca_component_rt1017 = {547	.probe = rt1017_sdca_component_probe,548	.remove = rt1017_sdca_component_remove,549	.controls = rt1017_sdca_controls,550	.num_controls = ARRAY_SIZE(rt1017_sdca_controls),551	.dapm_widgets = rt1017_sdca_dapm_widgets,552	.num_dapm_widgets = ARRAY_SIZE(rt1017_sdca_dapm_widgets),553	.dapm_routes = rt1017_sdca_dapm_routes,554	.num_dapm_routes = ARRAY_SIZE(rt1017_sdca_dapm_routes),555	.endianness = 1,556};557 558static int rt1017_sdca_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,559				int direction)560{561	snd_soc_dai_dma_data_set(dai, direction, sdw_stream);562 563	return 0;564}565 566static void rt1017_sdca_shutdown(struct snd_pcm_substream *substream,567				struct snd_soc_dai *dai)568{569	snd_soc_dai_set_dma_data(dai, substream, NULL);570}571 572static int rt1017_sdca_pcm_hw_params(struct snd_pcm_substream *substream,573				struct snd_pcm_hw_params *params,574				struct snd_soc_dai *dai)575{576	struct snd_soc_component *component = dai->component;577	struct rt1017_sdca_priv *rt1017 = snd_soc_component_get_drvdata(component);578	struct sdw_stream_config stream_config;579	struct sdw_port_config port_config;580	enum sdw_data_direction direction;581	struct sdw_stream_runtime *sdw_stream;582	int retval, port, num_channels, ch_mask;583	unsigned int sampling_rate;584 585	dev_dbg(dai->dev, "%s %s", __func__, dai->name);586	sdw_stream = snd_soc_dai_get_dma_data(dai, substream);587 588	if (!sdw_stream)589		return -EINVAL;590 591	if (!rt1017->sdw_slave)592		return -EINVAL;593 594	/* SoundWire specific configuration */595	/* port 1 for playback */596	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {597		direction = SDW_DATA_DIR_RX;598		port = 1;599	} else {600		direction = SDW_DATA_DIR_TX;601		port = 2;602	}603 604	num_channels = params_channels(params);605	ch_mask = (1 << num_channels) - 1;606 607	stream_config.frame_rate = params_rate(params);608	stream_config.ch_count = num_channels;609	stream_config.bps = snd_pcm_format_width(params_format(params));610	stream_config.direction = direction;611 612	port_config.ch_mask = ch_mask;613	port_config.num = port;614 615	dev_dbg(dai->dev, "frame_rate %d, ch_count %d, bps %d, direction %d, ch_mask %d, port: %d\n",616		params_rate(params), num_channels, snd_pcm_format_width(params_format(params)),617		direction, ch_mask, port);618 619	retval = sdw_stream_add_slave(rt1017->sdw_slave, &stream_config,620				&port_config, 1, sdw_stream);621	if (retval) {622		dev_err(dai->dev, "Unable to configure port\n");623		return retval;624	}625 626	/* sampling rate configuration */627	switch (params_rate(params)) {628	case 44100:629		sampling_rate = RT1017_SDCA_RATE_44100HZ;630		break;631	case 48000:632		sampling_rate = RT1017_SDCA_RATE_48000HZ;633		break;634	case 96000:635		sampling_rate = RT1017_SDCA_RATE_96000HZ;636		break;637	case 192000:638		sampling_rate = RT1017_SDCA_RATE_192000HZ;639		break;640	default:641		dev_err(component->dev, "Rate %d is not supported\n",642			params_rate(params));643		return -EINVAL;644	}645 646	/* set sampling frequency */647	regmap_write(rt1017->regmap,648		SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1017_SDCA_ENT_CS21,649			RT1017_SDCA_CTL_FS_INDEX, 0),650		sampling_rate);651 652	return 0;653}654 655static int rt1017_sdca_pcm_hw_free(struct snd_pcm_substream *substream,656				struct snd_soc_dai *dai)657{658	struct snd_soc_component *component = dai->component;659	struct rt1017_sdca_priv *rt1017 = snd_soc_component_get_drvdata(component);660	struct sdw_stream_runtime *sdw_stream =661		snd_soc_dai_get_dma_data(dai, substream);662 663	if (!rt1017->sdw_slave)664		return -EINVAL;665 666	sdw_stream_remove_slave(rt1017->sdw_slave, sdw_stream);667	return 0;668}669 670static const struct snd_soc_dai_ops rt1017_sdca_ops = {671	.hw_params	= rt1017_sdca_pcm_hw_params,672	.hw_free	= rt1017_sdca_pcm_hw_free,673	.set_stream	= rt1017_sdca_set_sdw_stream,674	.shutdown	= rt1017_sdca_shutdown,675};676 677#define RT1017_STEREO_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \678			     SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_192000)679#define RT1017_FORMATS (SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \680			SNDRV_PCM_FMTBIT_S24_LE)681 682static struct snd_soc_dai_driver rt1017_sdca_dai[] = {683	{684		.name = "rt1017-aif",685		.playback = {686			.stream_name = "DP1 Playback",687			.channels_min = 1,688			.channels_max = 1,689			.rates = RT1017_STEREO_RATES,690			.formats = RT1017_FORMATS,691		},692		.capture = {693			.stream_name = "DP2 Capture",694			.channels_min = 1,695			.channels_max = 1,696			.rates = RT1017_STEREO_RATES,697			.formats = RT1017_FORMATS,698		},699		.ops = &rt1017_sdca_ops,700	},701};702 703static int rt1017_sdca_init(struct device *dev, struct regmap *regmap,704			struct sdw_slave *slave)705{706	struct rt1017_sdca_priv *rt1017;707	int ret;708 709	rt1017 = devm_kzalloc(dev, sizeof(*rt1017), GFP_KERNEL);710	if (!rt1017)711		return -ENOMEM;712 713	dev_set_drvdata(dev, rt1017);714	rt1017->sdw_slave = slave;715	rt1017->regmap = regmap;716 717	/*718	 * Mark hw_init to false719	 * HW init will be performed when device reports present720	 */721	rt1017->hw_init = false;722	rt1017->first_hw_init = false;723 724	ret =  devm_snd_soc_register_component(dev,725				&soc_sdca_component_rt1017,726				rt1017_sdca_dai,727				ARRAY_SIZE(rt1017_sdca_dai));728 729	return ret;730}731 732static int rt1017_sdca_sdw_probe(struct sdw_slave *slave,733				const struct sdw_device_id *id)734{735	struct regmap *regmap;736 737	/* Regmap Initialization */738	regmap = devm_regmap_init_sdw(slave, &rt1017_sdca_regmap);739	if (IS_ERR(regmap))740		return PTR_ERR(regmap);741 742	return rt1017_sdca_init(&slave->dev, regmap, slave);743}744 745static int rt1017_sdca_sdw_remove(struct sdw_slave *slave)746{747	struct rt1017_sdca_priv *rt1017 = dev_get_drvdata(&slave->dev);748 749	if (rt1017->first_hw_init)750		pm_runtime_disable(&slave->dev);751 752	return 0;753}754 755static const struct sdw_device_id rt1017_sdca_id[] = {756	SDW_SLAVE_ENTRY_EXT(0x025d, 0x1017, 0x3, 0x1, 0),757	{},758};759MODULE_DEVICE_TABLE(sdw, rt1017_sdca_id);760 761static int __maybe_unused rt1017_sdca_dev_suspend(struct device *dev)762{763	struct rt1017_sdca_priv *rt1017 = dev_get_drvdata(dev);764 765	if (!rt1017->hw_init)766		return 0;767 768	regcache_cache_only(rt1017->regmap, true);769 770	return 0;771}772 773#define RT1017_PROBE_TIMEOUT 5000774 775static int __maybe_unused rt1017_sdca_dev_resume(struct device *dev)776{777	struct sdw_slave *slave = dev_to_sdw_dev(dev);778	struct rt1017_sdca_priv *rt1017 = dev_get_drvdata(dev);779	unsigned long time;780 781	if (!rt1017->first_hw_init)782		return 0;783 784	if (!slave->unattach_request)785		goto regmap_sync;786 787	time = wait_for_completion_timeout(&slave->initialization_complete,788				msecs_to_jiffies(RT1017_PROBE_TIMEOUT));789	if (!time) {790		dev_err(&slave->dev, "Initialization not complete, timed out\n");791		sdw_show_ping_status(slave->bus, true);792 793		return -ETIMEDOUT;794	}795 796regmap_sync:797	slave->unattach_request = 0;798	regcache_cache_only(rt1017->regmap, false);799	regcache_sync(rt1017->regmap);800 801	return 0;802}803 804static const struct dev_pm_ops rt1017_sdca_pm = {805	SET_SYSTEM_SLEEP_PM_OPS(rt1017_sdca_dev_suspend, rt1017_sdca_dev_resume)806	SET_RUNTIME_PM_OPS(rt1017_sdca_dev_suspend, rt1017_sdca_dev_resume, NULL)807};808 809static struct sdw_driver rt1017_sdca_sdw_driver = {810	.driver = {811		.name = "rt1017-sdca",812		.pm = &rt1017_sdca_pm,813	},814	.probe = rt1017_sdca_sdw_probe,815	.remove = rt1017_sdca_sdw_remove,816	.ops = &rt1017_sdca_slave_ops,817	.id_table = rt1017_sdca_id,818};819module_sdw_driver(rt1017_sdca_sdw_driver);820 821MODULE_DESCRIPTION("ASoC RT1017 driver SDCA SDW");822MODULE_AUTHOR("Derek Fang <derek.fang@realtek.com>");823MODULE_LICENSE("GPL");824