diff options
Diffstat (limited to 'sound/soc/codecs/rt1316-sdw.c')
| -rw-r--r-- | sound/soc/codecs/rt1316-sdw.c | 796 |
1 files changed, 796 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt1316-sdw.c b/sound/soc/codecs/rt1316-sdw.c new file mode 100644 index 0000000000..47511f7011 --- /dev/null +++ b/sound/soc/codecs/rt1316-sdw.c @@ -0,0 +1,796 @@ +// 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, "Unable to configure port\n"); + 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, "Could not allocate bq_params memory\n"); + 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, "Could not read list of realtek,bq-params\n"); + } + } + + 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, "Initialization not complete, timed out\n"); + 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", + .owner = THIS_MODULE, + .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 <shumingf@realtek.com>"); +MODULE_LICENSE("GPL"); |