--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * rt5575-spi.c -- ALC5575 SPI driver
+ *
+ * Copyright(c) 2025 Realtek Semiconductor Corp.
+ *
+ */
+
+#include <linux/firmware.h>
+#include <linux/of.h>
+#include <linux/spi/spi.h>
+
+#include "rt5575-spi.h"
+
+#define RT5575_SPI_CMD_BURST_WRITE 5
+#define RT5575_SPI_BUF_LEN 240
+
+struct rt5575_spi_burst_write {
+ u8 cmd;
+ u32 addr;
+ u8 data[RT5575_SPI_BUF_LEN];
+ u8 dummy;
+} __packed;
+
+struct spi_device *rt5575_spi_get_device(struct device *dev)
+{
+ struct spi_device *spi;
+ struct spi_controller *ctlr;
+ struct device_node *spi_np;
+ u32 cs;
+
+ spi_np = of_parse_phandle(dev->of_node, "spi-parent", 0);
+ if (!spi_np) {
+ dev_err(dev, "Failed to get spi-parent phandle\n");
+ return NULL;
+ }
+
+ if (of_property_read_u32_index(dev->of_node, "spi-parent", 1, &cs))
+ cs = 0;
+
+ ctlr = of_find_spi_controller_by_node(spi_np);
+ of_node_put(spi_np);
+ if (!ctlr) {
+ dev_err(dev, "Failed to get spi_controller\n");
+ return NULL;
+ }
+
+ if (cs >= ctlr->num_chipselect) {
+ dev_err(dev, "Chip select has wrong number %d\n", cs);
+ spi_controller_put(ctlr);
+ return NULL;
+ }
+
+ spi = spi_new_device(ctlr, &(struct spi_board_info){
+ .modalias = "rt5575",
+ .chip_select = cs,
+ .max_speed_hz = 10000000,
+ });
+
+ spi_controller_put(ctlr);
+ return spi;
+}
+
+/**
+ * rt5575_spi_burst_write - Write data to SPI by rt5575 address.
+ * @spi: SPI device.
+ * @addr: Start address.
+ * @txbuf: Data buffer for writing.
+ * @len: Data length.
+ *
+ */
+static void rt5575_spi_burst_write(struct spi_device *spi, u32 addr, const u8 *txbuf, size_t len)
+{
+ struct rt5575_spi_burst_write buf = {
+ .cmd = RT5575_SPI_CMD_BURST_WRITE,
+ };
+ unsigned int end, offset = 0;
+
+ while (offset < len) {
+ if (offset + RT5575_SPI_BUF_LEN <= len)
+ end = RT5575_SPI_BUF_LEN;
+ else
+ end = len % RT5575_SPI_BUF_LEN;
+
+ buf.addr = cpu_to_le32(addr + offset);
+ memcpy(&buf.data, &txbuf[offset], end);
+ spi_write(spi, &buf, sizeof(buf));
+
+ offset += RT5575_SPI_BUF_LEN;
+ }
+}
+
+int rt5575_spi_fw_load(struct spi_device *spi)
+{
+ struct device *dev = &spi->dev;
+ const struct firmware *firmware;
+ int i, ret;
+ static const char * const fw_path[] = {
+ "realtek/rt5575/rt5575_fw1.bin",
+ "realtek/rt5575/rt5575_fw2.bin",
+ "realtek/rt5575/rt5575_fw3.bin",
+ "realtek/rt5575/rt5575_fw4.bin",
+ };
+ static const u32 fw_addr[] = { 0x5f400000, 0x5f600000, 0x5f7fe000, 0x5f7ff000 };
+
+ for (i = 0; i < ARRAY_SIZE(fw_addr); i++) {
+ ret = request_firmware(&firmware, fw_path[i], dev);
+ if (ret) {
+ dev_err(dev, "Request firmware failure: %d\n", ret);
+ return ret;
+ }
+
+ rt5575_spi_burst_write(spi, fw_addr[i], firmware->data, firmware->size);
+ release_firmware(firmware);
+ }
+
+ return 0;
+}
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * rt5575.c -- ALC5575 ALSA SoC audio component driver
+ *
+ * Copyright(c) 2025 Realtek Semiconductor Corp.
+ *
+ */
+
+#include <linux/i2c.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#include "rt5575.h"
+#include "rt5575-spi.h"
+
+static bool rt5575_readable_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case RT5575_BOOT:
+ case RT5575_ID:
+ case RT5575_ID_1:
+ case RT5575_MIXL_VOL:
+ case RT5575_MIXR_VOL:
+ case RT5575_PROMPT_VOL:
+ case RT5575_SPK01_VOL:
+ case RT5575_SPK23_VOL:
+ case RT5575_MIC1_VOL:
+ case RT5575_MIC2_VOL:
+ case RT5575_WNC_CTRL:
+ case RT5575_MODE_CTRL:
+ case RT5575_I2S_RATE_CTRL:
+ case RT5575_SLEEP_CTRL:
+ case RT5575_ALG_BYPASS_CTRL:
+ case RT5575_PINMUX_CTRL_2:
+ case RT5575_GPIO_CTRL_1:
+ case RT5575_DSP_BUS_CTRL:
+ case RT5575_SW_INT:
+ case RT5575_DSP_BOOT_ERR:
+ case RT5575_DSP_READY:
+ case RT5575_DSP_CMD_ADDR:
+ case RT5575_EFUSE_DATA_2:
+ case RT5575_EFUSE_DATA_3:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const DECLARE_TLV_DB_SCALE(ob_tlv, -9525, 75, 0);
+
+static const struct snd_kcontrol_new rt5575_snd_controls[] = {
+ SOC_DOUBLE("Speaker CH-01 Playback Switch", RT5575_SPK01_VOL, 31, 15, 1, 1),
+ SOC_DOUBLE_TLV("Speaker CH-01 Playback Volume", RT5575_SPK01_VOL, 17, 1, 167, 0, ob_tlv),
+ SOC_DOUBLE("Speaker CH-23 Playback Switch", RT5575_SPK23_VOL, 31, 15, 1, 1),
+ SOC_DOUBLE_TLV("Speaker CH-23 Playback Volume", RT5575_SPK23_VOL, 17, 1, 167, 0, ob_tlv),
+ SOC_DOUBLE("Mic1 Capture Switch", RT5575_MIC1_VOL, 31, 15, 1, 1),
+ SOC_DOUBLE_TLV("Mic1 Capture Volume", RT5575_MIC1_VOL, 17, 1, 167, 0, ob_tlv),
+ SOC_DOUBLE("Mic2 Capture Switch", RT5575_MIC2_VOL, 31, 15, 1, 1),
+ SOC_DOUBLE_TLV("Mic2 Capture Volume", RT5575_MIC2_VOL, 17, 1, 167, 0, ob_tlv),
+ SOC_DOUBLE_R("Mix Playback Switch", RT5575_MIXL_VOL, RT5575_MIXR_VOL, 31, 1, 1),
+ SOC_DOUBLE_R_TLV("Mix Playback Volume", RT5575_MIXL_VOL, RT5575_MIXR_VOL, 1, 127, 0,
+ ob_tlv),
+ SOC_DOUBLE("Prompt Playback Switch", RT5575_PROMPT_VOL, 31, 15, 1, 1),
+ SOC_DOUBLE_TLV("Prompt Playback Volume", RT5575_PROMPT_VOL, 17, 1, 167, 0, ob_tlv),
+};
+
+static const struct snd_soc_dapm_widget rt5575_dapm_widgets[] = {
+ SND_SOC_DAPM_AIF_IN("AIF1RX", "AIF1 Playback", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_OUT("AIF1TX", "AIF1 Capture", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("AIF2RX", "AIF2 Playback", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_OUT("AIF2TX", "AIF2 Capture", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("AIF3RX", "AIF3 Playback", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_OUT("AIF3TX", "AIF3 Capture", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("AIF4RX", "AIF4 Playback", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_OUT("AIF4TX", "AIF4 Capture", 0, SND_SOC_NOPM, 0, 0),
+
+ SND_SOC_DAPM_INPUT("INPUT"),
+ SND_SOC_DAPM_OUTPUT("OUTPUT"),
+};
+
+static const struct snd_soc_dapm_route rt5575_dapm_routes[] = {
+ { "AIF1TX", NULL, "INPUT" },
+ { "AIF2TX", NULL, "INPUT" },
+ { "AIF3TX", NULL, "INPUT" },
+ { "AIF4TX", NULL, "INPUT" },
+ { "OUTPUT", NULL, "AIF1RX" },
+ { "OUTPUT", NULL, "AIF2RX" },
+ { "OUTPUT", NULL, "AIF3RX" },
+ { "OUTPUT", NULL, "AIF4RX" },
+};
+
+static long long rt5575_get_priv_id(struct rt5575_priv *rt5575)
+{
+ int priv_id_low, priv_id_high;
+
+ regmap_write(rt5575->regmap, RT5575_EFUSE_PID, 0xa0000000);
+ regmap_read(rt5575->regmap, RT5575_EFUSE_DATA_2, &priv_id_low);
+ regmap_read(rt5575->regmap, RT5575_EFUSE_DATA_3, &priv_id_high);
+ regmap_write(rt5575->regmap, RT5575_EFUSE_PID, 0);
+
+ return ((long long)priv_id_high << 32) | (long long)priv_id_low;
+}
+
+static int rt5575_probe(struct snd_soc_component *component)
+{
+ struct rt5575_priv *rt5575 = snd_soc_component_get_drvdata(component);
+ struct device *dev = component->dev;
+
+ rt5575->component = component;
+
+ dev_info(dev, "Private ID: %llx\n", rt5575_get_priv_id(rt5575));
+
+ return 0;
+}
+
+#define RT5575_STEREO_RATES SNDRV_PCM_RATE_8000_192000
+#define RT5575_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
+ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8 | \
+ SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_driver rt5575_dai[] = {
+ {
+ .name = "rt5575-aif1",
+ .id = RT5575_AIF1,
+ .playback = {
+ .stream_name = "AIF1 Playback",
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = RT5575_STEREO_RATES,
+ .formats = RT5575_FORMATS,
+ },
+ .capture = {
+ .stream_name = "AIF1 Capture",
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = RT5575_STEREO_RATES,
+ .formats = RT5575_FORMATS,
+ },
+ },
+ {
+ .name = "rt5575-aif2",
+ .id = RT5575_AIF2,
+ .playback = {
+ .stream_name = "AIF2 Playback",
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = RT5575_STEREO_RATES,
+ .formats = RT5575_FORMATS,
+ },
+ .capture = {
+ .stream_name = "AIF2 Capture",
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = RT5575_STEREO_RATES,
+ .formats = RT5575_FORMATS,
+ },
+ },
+ {
+ .name = "rt5575-aif3",
+ .id = RT5575_AIF3,
+ .playback = {
+ .stream_name = "AIF3 Playback",
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = RT5575_STEREO_RATES,
+ .formats = RT5575_FORMATS,
+ },
+ .capture = {
+ .stream_name = "AIF3 Capture",
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = RT5575_STEREO_RATES,
+ .formats = RT5575_FORMATS,
+ },
+ },
+ {
+ .name = "rt5575-aif4",
+ .id = RT5575_AIF4,
+ .playback = {
+ .stream_name = "AIF4 Playback",
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = RT5575_STEREO_RATES,
+ .formats = RT5575_FORMATS,
+ },
+ .capture = {
+ .stream_name = "AIF4 Capture",
+ .channels_min = 1,
+ .channels_max = 8,
+ .rates = RT5575_STEREO_RATES,
+ .formats = RT5575_FORMATS,
+ },
+ },
+};
+
+static const struct snd_soc_component_driver rt5575_soc_component_dev = {
+ .probe = rt5575_probe,
+ .controls = rt5575_snd_controls,
+ .num_controls = ARRAY_SIZE(rt5575_snd_controls),
+ .dapm_widgets = rt5575_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(rt5575_dapm_widgets),
+ .dapm_routes = rt5575_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(rt5575_dapm_routes),
+ .use_pmdown_time = 1,
+ .endianness = 1,
+};
+
+static const struct regmap_config rt5575_dsp_regmap = {
+ .name = "dsp",
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = 2,
+};
+
+static int rt5575_i2c_read(void *context, unsigned int reg, unsigned int *val)
+{
+ struct i2c_client *client = context;
+ struct rt5575_priv *rt5575 = i2c_get_clientdata(client);
+
+ return regmap_read(rt5575->dsp_regmap, reg | RT5575_DSP_MAPPING, val);
+}
+
+static int rt5575_i2c_write(void *context, unsigned int reg, unsigned int val)
+{
+ struct i2c_client *client = context;
+ struct rt5575_priv *rt5575 = i2c_get_clientdata(client);
+
+ return regmap_write(rt5575->dsp_regmap, reg | RT5575_DSP_MAPPING, val);
+}
+
+static const struct regmap_config rt5575_regmap = {
+ .reg_bits = 16,
+ .val_bits = 32,
+ .reg_stride = 4,
+ .max_register = 0xfffc,
+ .readable_reg = rt5575_readable_register,
+ .reg_read = rt5575_i2c_read,
+ .reg_write = rt5575_i2c_write,
+ .use_single_read = true,
+ .use_single_write = true,
+};
+
+static int rt5575_fw_load_by_spi(struct rt5575_priv *rt5575)
+{
+ struct i2c_client *i2c = rt5575->i2c;
+ struct spi_device *spi;
+ struct device *dev = &i2c->dev;
+ int ret;
+
+ spi = rt5575_spi_get_device(dev);
+ if (!spi) {
+ dev_err(dev, "Failed to get spi_device\n");
+ return -ENODEV;
+ }
+
+ regmap_write(rt5575->dsp_regmap, 0xfafafafa, 0x00000004);
+ regmap_write(rt5575->dsp_regmap, 0x18008064, 0x00000000);
+ regmap_write(rt5575->dsp_regmap, 0x18008068, 0x0002ffff);
+
+ ret = rt5575_spi_fw_load(spi);
+ if (ret) {
+ dev_err(dev, "Load firmware failure: %d\n", ret);
+ return -ENODEV;
+ }
+
+ regmap_write(rt5575->dsp_regmap, 0x18000000, 0x00000000);
+ regmap_update_bits(rt5575->regmap, RT5575_SW_INT, 1, 1);
+
+ regmap_read_poll_timeout(rt5575->regmap, RT5575_SW_INT, ret, !ret, 100000, 10000000);
+ if (ret) {
+ dev_err(dev, "Run firmware failure: %d\n", ret);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static int rt5575_i2c_probe(struct i2c_client *i2c)
+{
+ struct rt5575_priv *rt5575;
+ int ret, val, boot;
+ struct device *dev = &i2c->dev;
+
+ rt5575 = devm_kzalloc(dev, sizeof(struct rt5575_priv), GFP_KERNEL);
+ if (!rt5575)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, rt5575);
+
+ rt5575->i2c = i2c;
+
+ rt5575->dsp_regmap = devm_regmap_init_i2c(i2c, &rt5575_dsp_regmap);
+ if (IS_ERR(rt5575->dsp_regmap)) {
+ ret = PTR_ERR(rt5575->dsp_regmap);
+ dev_err(dev, "Failed to allocate DSP register map: %d\n", ret);
+ return ret;
+ }
+
+ rt5575->regmap = devm_regmap_init(dev, NULL, i2c, &rt5575_regmap);
+ if (IS_ERR(rt5575->regmap)) {
+ ret = PTR_ERR(rt5575->regmap);
+ dev_err(dev, "Failed to allocate register map: %d\n", ret);
+ return ret;
+ }
+
+ regmap_read(rt5575->regmap, RT5575_ID, &val);
+ if (val != RT5575_DEVICE_ID) {
+ dev_err(dev, "Device with ID register %08x is not rt5575\n", val);
+ return -ENODEV;
+ }
+
+ regmap_read(rt5575->regmap, RT5575_BOOT, &boot);
+ if ((boot & RT5575_BOOT_MASK) == RT5575_BOOT_SPI) {
+ if (!IS_ENABLED(CONFIG_SND_SOC_RT5575_SPI)) {
+ dev_err(dev, "Please enable CONFIG_SND_SOC_RT5575_SPI\n");
+ return -ENODEV;
+ }
+
+ if (rt5575_fw_load_by_spi(rt5575))
+ return -ENODEV;
+ }
+
+ return devm_snd_soc_register_component(dev, &rt5575_soc_component_dev, rt5575_dai,
+ ARRAY_SIZE(rt5575_dai));
+}
+
+static const struct i2c_device_id rt5575_i2c_id[] = {
+ { "rt5575" },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, rt5575_i2c_id);
+
+static const struct of_device_id rt5575_of_match[] = {
+ { .compatible = "realtek,rt5575" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, rt5575_of_match);
+
+static struct i2c_driver rt5575_i2c_driver = {
+ .driver = {
+ .name = "rt5575",
+ .owner = THIS_MODULE,
+ .of_match_table = rt5575_of_match,
+ },
+ .probe = rt5575_i2c_probe,
+ .id_table = rt5575_i2c_id,
+};
+module_i2c_driver(rt5575_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC ALC5575 driver");
+MODULE_AUTHOR("Oder Chiou <oder_chiou@realtek.com>");
+MODULE_LICENSE("GPL");
projects / thirdparty / kernel / linux.git / commitdiff
