diff options
Diffstat (limited to 'sound/soc/tegra/tegra210_amx.c')
| -rw-r--r-- | sound/soc/tegra/tegra210_amx.c | 598 |
1 files changed, 598 insertions, 0 deletions
diff --git a/sound/soc/tegra/tegra210_amx.c b/sound/soc/tegra/tegra210_amx.c new file mode 100644 index 000000000000..91e405909e0f --- /dev/null +++ b/sound/soc/tegra/tegra210_amx.c @@ -0,0 +1,598 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// tegra210_amx.c - Tegra210 AMX driver +// +// Copyright (c) 2021-2023 NVIDIA CORPORATION. All rights reserved. + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/mod_devicetable.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> + +#include "tegra210_amx.h" +#include "tegra_cif.h" + +/* + * The counter is in terms of AHUB clock cycles. If a frame is not + * received within these clock cycles, the AMX input channel gets + * automatically disabled. For now the counter is calculated as a + * function of sample rate (8 kHz) and AHUB clock (49.152 MHz). + * If later an accurate number is needed, the counter needs to be + * calculated at runtime. + * + * count = ahub_clk / sample_rate + */ +#define TEGRA194_MAX_FRAME_IDLE_COUNT 0x1800 + +#define AMX_CH_REG(id, reg) ((reg) + ((id) * TEGRA210_AMX_AUDIOCIF_CH_STRIDE)) + +static const struct reg_default tegra210_amx_reg_defaults[] = { + { TEGRA210_AMX_RX_INT_MASK, 0x0000000f}, + { TEGRA210_AMX_RX1_CIF_CTRL, 0x00007000}, + { TEGRA210_AMX_RX2_CIF_CTRL, 0x00007000}, + { TEGRA210_AMX_RX3_CIF_CTRL, 0x00007000}, + { TEGRA210_AMX_RX4_CIF_CTRL, 0x00007000}, + { TEGRA210_AMX_TX_INT_MASK, 0x00000001}, + { TEGRA210_AMX_TX_CIF_CTRL, 0x00007000}, + { TEGRA210_AMX_CG, 0x1}, + { TEGRA210_AMX_CFG_RAM_CTRL, 0x00004000}, +}; + +static void tegra210_amx_write_map_ram(struct tegra210_amx *amx) +{ + int i; + + regmap_write(amx->regmap, TEGRA210_AMX_CFG_RAM_CTRL, + TEGRA210_AMX_CFG_RAM_CTRL_SEQ_ACCESS_EN | + TEGRA210_AMX_CFG_RAM_CTRL_ADDR_INIT_EN | + TEGRA210_AMX_CFG_RAM_CTRL_RW_WRITE); + + for (i = 0; i < TEGRA210_AMX_RAM_DEPTH; i++) + regmap_write(amx->regmap, TEGRA210_AMX_CFG_RAM_DATA, + amx->map[i]); + + regmap_write(amx->regmap, TEGRA210_AMX_OUT_BYTE_EN0, amx->byte_mask[0]); + regmap_write(amx->regmap, TEGRA210_AMX_OUT_BYTE_EN1, amx->byte_mask[1]); +} + +static int tegra210_amx_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct tegra210_amx *amx = snd_soc_dai_get_drvdata(dai); + unsigned int val; + int err; + + /* Ensure if AMX is disabled */ + err = regmap_read_poll_timeout(amx->regmap, TEGRA210_AMX_STATUS, val, + !(val & 0x1), 10, 10000); + if (err < 0) { + dev_err(dai->dev, "failed to stop AMX, err = %d\n", err); + return err; + } + + /* + * Soft Reset: Below performs module soft reset which clears + * all FSM logic, flushes flow control of FIFO and resets the + * state register. It also brings module back to disabled + * state (without flushing the data in the pipe). + */ + regmap_update_bits(amx->regmap, TEGRA210_AMX_SOFT_RESET, + TEGRA210_AMX_SOFT_RESET_SOFT_RESET_MASK, + TEGRA210_AMX_SOFT_RESET_SOFT_EN); + + err = regmap_read_poll_timeout(amx->regmap, TEGRA210_AMX_SOFT_RESET, + val, !(val & 0x1), 10, 10000); + if (err < 0) { + dev_err(dai->dev, "failed to reset AMX, err = %d\n", err); + return err; + } + + return 0; +} + +static int __maybe_unused tegra210_amx_runtime_suspend(struct device *dev) +{ + struct tegra210_amx *amx = dev_get_drvdata(dev); + + regcache_cache_only(amx->regmap, true); + regcache_mark_dirty(amx->regmap); + + return 0; +} + +static int __maybe_unused tegra210_amx_runtime_resume(struct device *dev) +{ + struct tegra210_amx *amx = dev_get_drvdata(dev); + + regcache_cache_only(amx->regmap, false); + regcache_sync(amx->regmap); + + regmap_update_bits(amx->regmap, + TEGRA210_AMX_CTRL, + TEGRA210_AMX_CTRL_RX_DEP_MASK, + TEGRA210_AMX_WAIT_ON_ANY << TEGRA210_AMX_CTRL_RX_DEP_SHIFT); + + tegra210_amx_write_map_ram(amx); + + return 0; +} + +static int tegra210_amx_set_audio_cif(struct snd_soc_dai *dai, + struct snd_pcm_hw_params *params, + unsigned int reg) +{ + struct tegra210_amx *amx = snd_soc_dai_get_drvdata(dai); + int channels, audio_bits; + struct tegra_cif_conf cif_conf; + + memset(&cif_conf, 0, sizeof(struct tegra_cif_conf)); + + channels = params_channels(params); + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S8: + audio_bits = TEGRA_ACIF_BITS_8; + break; + case SNDRV_PCM_FORMAT_S16_LE: + audio_bits = TEGRA_ACIF_BITS_16; + break; + case SNDRV_PCM_FORMAT_S32_LE: + audio_bits = TEGRA_ACIF_BITS_32; + break; + default: + return -EINVAL; + } + + cif_conf.audio_ch = channels; + cif_conf.client_ch = channels; + cif_conf.audio_bits = audio_bits; + cif_conf.client_bits = audio_bits; + + tegra_set_cif(amx->regmap, reg, &cif_conf); + + return 0; +} + +static int tegra210_amx_in_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct tegra210_amx *amx = snd_soc_dai_get_drvdata(dai); + + if (amx->soc_data->auto_disable) { + regmap_write(amx->regmap, + AMX_CH_REG(dai->id, TEGRA194_AMX_RX1_FRAME_PERIOD), + TEGRA194_MAX_FRAME_IDLE_COUNT); + regmap_write(amx->regmap, TEGRA210_AMX_CYA, 1); + } + + return tegra210_amx_set_audio_cif(dai, params, + AMX_CH_REG(dai->id, TEGRA210_AMX_RX1_CIF_CTRL)); +} + +static int tegra210_amx_out_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + return tegra210_amx_set_audio_cif(dai, params, + TEGRA210_AMX_TX_CIF_CTRL); +} + +static int tegra210_amx_get_byte_map(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct tegra210_amx *amx = snd_soc_component_get_drvdata(cmpnt); + unsigned char *bytes_map = (unsigned char *)&amx->map; + int reg = mc->reg; + int enabled; + + if (reg > 31) + enabled = amx->byte_mask[1] & (1 << (reg - 32)); + else + enabled = amx->byte_mask[0] & (1 << reg); + + /* + * TODO: Simplify this logic to just return from bytes_map[] + * + * Presently below is required since bytes_map[] is + * tightly packed and cannot store the control value of 256. + * Byte mask state is used to know if 256 needs to be returned. + * Note that for control value of 256, the put() call stores 0 + * in the bytes_map[] and disables the corresponding bit in + * byte_mask[]. + */ + if (enabled) + ucontrol->value.integer.value[0] = bytes_map[reg]; + else + ucontrol->value.integer.value[0] = 256; + + return 0; +} + +static int tegra210_amx_put_byte_map(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct tegra210_amx *amx = snd_soc_component_get_drvdata(cmpnt); + unsigned char *bytes_map = (unsigned char *)&amx->map; + int reg = mc->reg; + int value = ucontrol->value.integer.value[0]; + unsigned int mask_val = amx->byte_mask[reg / 32]; + + if (value >= 0 && value <= 255) + mask_val |= (1 << (reg % 32)); + else + mask_val &= ~(1 << (reg % 32)); + + if (mask_val == amx->byte_mask[reg / 32]) + return 0; + + /* Update byte map and slot */ + bytes_map[reg] = value % 256; + amx->byte_mask[reg / 32] = mask_val; + + return 1; +} + +static const struct snd_soc_dai_ops tegra210_amx_out_dai_ops = { + .hw_params = tegra210_amx_out_hw_params, + .startup = tegra210_amx_startup, +}; + +static const struct snd_soc_dai_ops tegra210_amx_in_dai_ops = { + .hw_params = tegra210_amx_in_hw_params, +}; + +#define IN_DAI(id) \ + { \ + .name = "AMX-RX-CIF" #id, \ + .playback = { \ + .stream_name = "RX" #id "-CIF-Playback",\ + .channels_min = 1, \ + .channels_max = 16, \ + .rates = SNDRV_PCM_RATE_8000_192000, \ + .formats = SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S32_LE, \ + }, \ + .capture = { \ + .stream_name = "RX" #id "-CIF-Capture", \ + .channels_min = 1, \ + .channels_max = 16, \ + .rates = SNDRV_PCM_RATE_8000_192000, \ + .formats = SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S32_LE, \ + }, \ + .ops = &tegra210_amx_in_dai_ops, \ + } + +#define OUT_DAI \ + { \ + .name = "AMX-TX-CIF", \ + .playback = { \ + .stream_name = "TX-CIF-Playback", \ + .channels_min = 1, \ + .channels_max = 16, \ + .rates = SNDRV_PCM_RATE_8000_192000, \ + .formats = SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S32_LE, \ + }, \ + .capture = { \ + .stream_name = "TX-CIF-Capture", \ + .channels_min = 1, \ + .channels_max = 16, \ + .rates = SNDRV_PCM_RATE_8000_192000, \ + .formats = SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S32_LE, \ + }, \ + .ops = &tegra210_amx_out_dai_ops, \ + } + +static struct snd_soc_dai_driver tegra210_amx_dais[] = { + IN_DAI(1), + IN_DAI(2), + IN_DAI(3), + IN_DAI(4), + OUT_DAI, +}; + +static const struct snd_soc_dapm_widget tegra210_amx_widgets[] = { + SND_SOC_DAPM_AIF_IN("RX1", NULL, 0, TEGRA210_AMX_CTRL, 0, 0), + SND_SOC_DAPM_AIF_IN("RX2", NULL, 0, TEGRA210_AMX_CTRL, 1, 0), + SND_SOC_DAPM_AIF_IN("RX3", NULL, 0, TEGRA210_AMX_CTRL, 2, 0), + SND_SOC_DAPM_AIF_IN("RX4", NULL, 0, TEGRA210_AMX_CTRL, 3, 0), + SND_SOC_DAPM_AIF_OUT("TX", NULL, 0, TEGRA210_AMX_ENABLE, + TEGRA210_AMX_ENABLE_SHIFT, 0), +}; + +#define STREAM_ROUTES(id, sname) \ + { "RX" #id " XBAR-" sname, NULL, "RX" #id " XBAR-TX" }, \ + { "RX" #id "-CIF-" sname, NULL, "RX" #id " XBAR-" sname },\ + { "RX" #id, NULL, "RX" #id "-CIF-" sname }, \ + { "TX", NULL, "RX" #id }, \ + { "TX-CIF-" sname, NULL, "TX" }, \ + { "XBAR-" sname, NULL, "TX-CIF-" sname }, \ + { "XBAR-RX", NULL, "XBAR-" sname } + +#define AMX_ROUTES(id) \ + STREAM_ROUTES(id, "Playback"), \ + STREAM_ROUTES(id, "Capture") + +static const struct snd_soc_dapm_route tegra210_amx_routes[] = { + AMX_ROUTES(1), + AMX_ROUTES(2), + AMX_ROUTES(3), + AMX_ROUTES(4), +}; + +#define TEGRA210_AMX_BYTE_MAP_CTRL(reg) \ + SOC_SINGLE_EXT("Byte Map " #reg, reg, 0, 256, 0, \ + tegra210_amx_get_byte_map, \ + tegra210_amx_put_byte_map) + +static struct snd_kcontrol_new tegra210_amx_controls[] = { + TEGRA210_AMX_BYTE_MAP_CTRL(0), + TEGRA210_AMX_BYTE_MAP_CTRL(1), + TEGRA210_AMX_BYTE_MAP_CTRL(2), + TEGRA210_AMX_BYTE_MAP_CTRL(3), + TEGRA210_AMX_BYTE_MAP_CTRL(4), + TEGRA210_AMX_BYTE_MAP_CTRL(5), + TEGRA210_AMX_BYTE_MAP_CTRL(6), + TEGRA210_AMX_BYTE_MAP_CTRL(7), + TEGRA210_AMX_BYTE_MAP_CTRL(8), + TEGRA210_AMX_BYTE_MAP_CTRL(9), + TEGRA210_AMX_BYTE_MAP_CTRL(10), + TEGRA210_AMX_BYTE_MAP_CTRL(11), + TEGRA210_AMX_BYTE_MAP_CTRL(12), + TEGRA210_AMX_BYTE_MAP_CTRL(13), + TEGRA210_AMX_BYTE_MAP_CTRL(14), + TEGRA210_AMX_BYTE_MAP_CTRL(15), + TEGRA210_AMX_BYTE_MAP_CTRL(16), + TEGRA210_AMX_BYTE_MAP_CTRL(17), + TEGRA210_AMX_BYTE_MAP_CTRL(18), + TEGRA210_AMX_BYTE_MAP_CTRL(19), + TEGRA210_AMX_BYTE_MAP_CTRL(20), + TEGRA210_AMX_BYTE_MAP_CTRL(21), + TEGRA210_AMX_BYTE_MAP_CTRL(22), + TEGRA210_AMX_BYTE_MAP_CTRL(23), + TEGRA210_AMX_BYTE_MAP_CTRL(24), + TEGRA210_AMX_BYTE_MAP_CTRL(25), + TEGRA210_AMX_BYTE_MAP_CTRL(26), + TEGRA210_AMX_BYTE_MAP_CTRL(27), + TEGRA210_AMX_BYTE_MAP_CTRL(28), + TEGRA210_AMX_BYTE_MAP_CTRL(29), + TEGRA210_AMX_BYTE_MAP_CTRL(30), + TEGRA210_AMX_BYTE_MAP_CTRL(31), + TEGRA210_AMX_BYTE_MAP_CTRL(32), + TEGRA210_AMX_BYTE_MAP_CTRL(33), + TEGRA210_AMX_BYTE_MAP_CTRL(34), + TEGRA210_AMX_BYTE_MAP_CTRL(35), + TEGRA210_AMX_BYTE_MAP_CTRL(36), + TEGRA210_AMX_BYTE_MAP_CTRL(37), + TEGRA210_AMX_BYTE_MAP_CTRL(38), + TEGRA210_AMX_BYTE_MAP_CTRL(39), + TEGRA210_AMX_BYTE_MAP_CTRL(40), + TEGRA210_AMX_BYTE_MAP_CTRL(41), + TEGRA210_AMX_BYTE_MAP_CTRL(42), + TEGRA210_AMX_BYTE_MAP_CTRL(43), + TEGRA210_AMX_BYTE_MAP_CTRL(44), + TEGRA210_AMX_BYTE_MAP_CTRL(45), + TEGRA210_AMX_BYTE_MAP_CTRL(46), + TEGRA210_AMX_BYTE_MAP_CTRL(47), + TEGRA210_AMX_BYTE_MAP_CTRL(48), + TEGRA210_AMX_BYTE_MAP_CTRL(49), + TEGRA210_AMX_BYTE_MAP_CTRL(50), + TEGRA210_AMX_BYTE_MAP_CTRL(51), + TEGRA210_AMX_BYTE_MAP_CTRL(52), + TEGRA210_AMX_BYTE_MAP_CTRL(53), + TEGRA210_AMX_BYTE_MAP_CTRL(54), + TEGRA210_AMX_BYTE_MAP_CTRL(55), + TEGRA210_AMX_BYTE_MAP_CTRL(56), + TEGRA210_AMX_BYTE_MAP_CTRL(57), + TEGRA210_AMX_BYTE_MAP_CTRL(58), + TEGRA210_AMX_BYTE_MAP_CTRL(59), + TEGRA210_AMX_BYTE_MAP_CTRL(60), + TEGRA210_AMX_BYTE_MAP_CTRL(61), + TEGRA210_AMX_BYTE_MAP_CTRL(62), + TEGRA210_AMX_BYTE_MAP_CTRL(63), +}; + +static const struct snd_soc_component_driver tegra210_amx_cmpnt = { + .dapm_widgets = tegra210_amx_widgets, + .num_dapm_widgets = ARRAY_SIZE(tegra210_amx_widgets), + .dapm_routes = tegra210_amx_routes, + .num_dapm_routes = ARRAY_SIZE(tegra210_amx_routes), + .controls = tegra210_amx_controls, + .num_controls = ARRAY_SIZE(tegra210_amx_controls), +}; + +static bool tegra210_amx_wr_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA210_AMX_RX_INT_MASK ... TEGRA210_AMX_RX4_CIF_CTRL: + case TEGRA210_AMX_TX_INT_MASK ... TEGRA210_AMX_CG: + case TEGRA210_AMX_CTRL ... TEGRA210_AMX_CYA: + case TEGRA210_AMX_CFG_RAM_CTRL ... TEGRA210_AMX_CFG_RAM_DATA: + return true; + default: + return false; + } +} + +static bool tegra194_amx_wr_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA194_AMX_RX1_FRAME_PERIOD ... TEGRA194_AMX_RX4_FRAME_PERIOD: + return true; + default: + return tegra210_amx_wr_reg(dev, reg); + } +} + +static bool tegra210_amx_rd_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA210_AMX_RX_STATUS ... TEGRA210_AMX_CFG_RAM_DATA: + return true; + default: + return false; + } +} + +static bool tegra194_amx_rd_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA194_AMX_RX1_FRAME_PERIOD ... TEGRA194_AMX_RX4_FRAME_PERIOD: + return true; + default: + return tegra210_amx_rd_reg(dev, reg); + } +} + +static bool tegra210_amx_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TEGRA210_AMX_RX_STATUS: + case TEGRA210_AMX_RX_INT_STATUS: + case TEGRA210_AMX_RX_INT_SET: + case TEGRA210_AMX_TX_STATUS: + case TEGRA210_AMX_TX_INT_STATUS: + case TEGRA210_AMX_TX_INT_SET: + case TEGRA210_AMX_SOFT_RESET: + case TEGRA210_AMX_STATUS: + case TEGRA210_AMX_INT_STATUS: + case TEGRA210_AMX_CFG_RAM_CTRL: + case TEGRA210_AMX_CFG_RAM_DATA: + return true; + default: + break; + } + + return false; +} + +static const struct regmap_config tegra210_amx_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = TEGRA210_AMX_CFG_RAM_DATA, + .writeable_reg = tegra210_amx_wr_reg, + .readable_reg = tegra210_amx_rd_reg, + .volatile_reg = tegra210_amx_volatile_reg, + .reg_defaults = tegra210_amx_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(tegra210_amx_reg_defaults), + .cache_type = REGCACHE_FLAT, +}; + +static const struct regmap_config tegra194_amx_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = TEGRA194_AMX_RX4_LAST_FRAME_PERIOD, + .writeable_reg = tegra194_amx_wr_reg, + .readable_reg = tegra194_amx_rd_reg, + .volatile_reg = tegra210_amx_volatile_reg, + .reg_defaults = tegra210_amx_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(tegra210_amx_reg_defaults), + .cache_type = REGCACHE_FLAT, +}; + +static const struct tegra210_amx_soc_data soc_data_tegra210 = { + .regmap_conf = &tegra210_amx_regmap_config, +}; + +static const struct tegra210_amx_soc_data soc_data_tegra194 = { + .regmap_conf = &tegra194_amx_regmap_config, + .auto_disable = true, +}; + +static const struct of_device_id tegra210_amx_of_match[] = { + { .compatible = "nvidia,tegra210-amx", .data = &soc_data_tegra210 }, + { .compatible = "nvidia,tegra194-amx", .data = &soc_data_tegra194 }, + {}, +}; +MODULE_DEVICE_TABLE(of, tegra210_amx_of_match); + +static int tegra210_amx_platform_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct tegra210_amx *amx; + void __iomem *regs; + int err; + + amx = devm_kzalloc(dev, sizeof(*amx), GFP_KERNEL); + if (!amx) + return -ENOMEM; + + amx->soc_data = device_get_match_data(dev); + + dev_set_drvdata(dev, amx); + + regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + amx->regmap = devm_regmap_init_mmio(dev, regs, + amx->soc_data->regmap_conf); + if (IS_ERR(amx->regmap)) { + dev_err(dev, "regmap init failed\n"); + return PTR_ERR(amx->regmap); + } + + regcache_cache_only(amx->regmap, true); + + err = devm_snd_soc_register_component(dev, &tegra210_amx_cmpnt, + tegra210_amx_dais, + ARRAY_SIZE(tegra210_amx_dais)); + if (err) { + dev_err(dev, "can't register AMX component, err: %d\n", err); + return err; + } + + pm_runtime_enable(dev); + + return 0; +} + +static void tegra210_amx_platform_remove(struct platform_device *pdev) +{ + pm_runtime_disable(&pdev->dev); +} + +static const struct dev_pm_ops tegra210_amx_pm_ops = { + SET_RUNTIME_PM_OPS(tegra210_amx_runtime_suspend, + tegra210_amx_runtime_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) +}; + +static struct platform_driver tegra210_amx_driver = { + .driver = { + .name = "tegra210-amx", + .of_match_table = tegra210_amx_of_match, + .pm = &tegra210_amx_pm_ops, + }, + .probe = tegra210_amx_platform_probe, + .remove_new = tegra210_amx_platform_remove, +}; +module_platform_driver(tegra210_amx_driver); + +MODULE_AUTHOR("Songhee Baek <sbaek@nvidia.com>"); +MODULE_DESCRIPTION("Tegra210 AMX ASoC driver"); +MODULE_LICENSE("GPL v2"); |