608 lines
17 KiB
C
608 lines
17 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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//
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// tegra210_amx.c - Tegra210 AMX driver
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//
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// Copyright (c) 2021-2023 NVIDIA CORPORATION. All rights reserved.
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#include <linux/clk.h>
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#include <linux/device.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/regmap.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include "tegra210_amx.h"
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#include "tegra_cif.h"
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/*
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* The counter is in terms of AHUB clock cycles. If a frame is not
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* received within these clock cycles, the AMX input channel gets
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* automatically disabled. For now the counter is calculated as a
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* function of sample rate (8 kHz) and AHUB clock (49.152 MHz).
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* If later an accurate number is needed, the counter needs to be
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* calculated at runtime.
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*
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* count = ahub_clk / sample_rate
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*/
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#define TEGRA194_MAX_FRAME_IDLE_COUNT 0x1800
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#define AMX_CH_REG(id, reg) ((reg) + ((id) * TEGRA210_AMX_AUDIOCIF_CH_STRIDE))
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static const struct reg_default tegra210_amx_reg_defaults[] = {
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{ TEGRA210_AMX_RX_INT_MASK, 0x0000000f},
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{ TEGRA210_AMX_RX1_CIF_CTRL, 0x00007000},
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{ TEGRA210_AMX_RX2_CIF_CTRL, 0x00007000},
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{ TEGRA210_AMX_RX3_CIF_CTRL, 0x00007000},
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{ TEGRA210_AMX_RX4_CIF_CTRL, 0x00007000},
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{ TEGRA210_AMX_TX_INT_MASK, 0x00000001},
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{ TEGRA210_AMX_TX_CIF_CTRL, 0x00007000},
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{ TEGRA210_AMX_CG, 0x1},
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{ TEGRA210_AMX_CFG_RAM_CTRL, 0x00004000},
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};
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static void tegra210_amx_write_map_ram(struct tegra210_amx *amx)
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{
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int i;
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regmap_write(amx->regmap, TEGRA210_AMX_CFG_RAM_CTRL,
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TEGRA210_AMX_CFG_RAM_CTRL_SEQ_ACCESS_EN |
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TEGRA210_AMX_CFG_RAM_CTRL_ADDR_INIT_EN |
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TEGRA210_AMX_CFG_RAM_CTRL_RW_WRITE);
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for (i = 0; i < TEGRA210_AMX_RAM_DEPTH; i++)
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regmap_write(amx->regmap, TEGRA210_AMX_CFG_RAM_DATA,
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amx->map[i]);
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regmap_write(amx->regmap, TEGRA210_AMX_OUT_BYTE_EN0, amx->byte_mask[0]);
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regmap_write(amx->regmap, TEGRA210_AMX_OUT_BYTE_EN1, amx->byte_mask[1]);
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}
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static int tegra210_amx_startup(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct tegra210_amx *amx = snd_soc_dai_get_drvdata(dai);
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unsigned int val;
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int err;
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/* Ensure if AMX is disabled */
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err = regmap_read_poll_timeout(amx->regmap, TEGRA210_AMX_STATUS, val,
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!(val & 0x1), 10, 10000);
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if (err < 0) {
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dev_err(dai->dev, "failed to stop AMX, err = %d\n", err);
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return err;
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}
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/*
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* Soft Reset: Below performs module soft reset which clears
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* all FSM logic, flushes flow control of FIFO and resets the
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* state register. It also brings module back to disabled
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* state (without flushing the data in the pipe).
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*/
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regmap_update_bits(amx->regmap, TEGRA210_AMX_SOFT_RESET,
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TEGRA210_AMX_SOFT_RESET_SOFT_RESET_MASK,
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TEGRA210_AMX_SOFT_RESET_SOFT_EN);
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err = regmap_read_poll_timeout(amx->regmap, TEGRA210_AMX_SOFT_RESET,
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val, !(val & 0x1), 10, 10000);
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if (err < 0) {
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dev_err(dai->dev, "failed to reset AMX, err = %d\n", err);
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return err;
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}
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return 0;
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}
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static int __maybe_unused tegra210_amx_runtime_suspend(struct device *dev)
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{
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struct tegra210_amx *amx = dev_get_drvdata(dev);
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regcache_cache_only(amx->regmap, true);
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regcache_mark_dirty(amx->regmap);
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return 0;
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}
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static int __maybe_unused tegra210_amx_runtime_resume(struct device *dev)
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{
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struct tegra210_amx *amx = dev_get_drvdata(dev);
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regcache_cache_only(amx->regmap, false);
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regcache_sync(amx->regmap);
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regmap_update_bits(amx->regmap,
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TEGRA210_AMX_CTRL,
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TEGRA210_AMX_CTRL_RX_DEP_MASK,
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TEGRA210_AMX_WAIT_ON_ANY << TEGRA210_AMX_CTRL_RX_DEP_SHIFT);
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tegra210_amx_write_map_ram(amx);
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return 0;
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}
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static int tegra210_amx_set_audio_cif(struct snd_soc_dai *dai,
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struct snd_pcm_hw_params *params,
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unsigned int reg)
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{
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struct tegra210_amx *amx = snd_soc_dai_get_drvdata(dai);
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int channels, audio_bits;
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struct tegra_cif_conf cif_conf;
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memset(&cif_conf, 0, sizeof(struct tegra_cif_conf));
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channels = params_channels(params);
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switch (params_format(params)) {
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case SNDRV_PCM_FORMAT_S8:
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audio_bits = TEGRA_ACIF_BITS_8;
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break;
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case SNDRV_PCM_FORMAT_S16_LE:
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audio_bits = TEGRA_ACIF_BITS_16;
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break;
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case SNDRV_PCM_FORMAT_S32_LE:
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audio_bits = TEGRA_ACIF_BITS_32;
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break;
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default:
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return -EINVAL;
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}
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cif_conf.audio_ch = channels;
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cif_conf.client_ch = channels;
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cif_conf.audio_bits = audio_bits;
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cif_conf.client_bits = audio_bits;
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tegra_set_cif(amx->regmap, reg, &cif_conf);
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return 0;
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}
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static int tegra210_amx_in_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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struct tegra210_amx *amx = snd_soc_dai_get_drvdata(dai);
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if (amx->soc_data->auto_disable) {
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regmap_write(amx->regmap,
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AMX_CH_REG(dai->id, TEGRA194_AMX_RX1_FRAME_PERIOD),
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TEGRA194_MAX_FRAME_IDLE_COUNT);
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regmap_write(amx->regmap, TEGRA210_AMX_CYA, 1);
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}
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return tegra210_amx_set_audio_cif(dai, params,
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AMX_CH_REG(dai->id, TEGRA210_AMX_RX1_CIF_CTRL));
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}
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static int tegra210_amx_out_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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return tegra210_amx_set_audio_cif(dai, params,
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TEGRA210_AMX_TX_CIF_CTRL);
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}
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static int tegra210_amx_get_byte_map(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
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struct soc_mixer_control *mc =
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(struct soc_mixer_control *)kcontrol->private_value;
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struct tegra210_amx *amx = snd_soc_component_get_drvdata(cmpnt);
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unsigned char *bytes_map = (unsigned char *)&amx->map;
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int reg = mc->reg;
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int enabled;
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if (reg > 31)
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enabled = amx->byte_mask[1] & (1 << (reg - 32));
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else
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enabled = amx->byte_mask[0] & (1 << reg);
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/*
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* TODO: Simplify this logic to just return from bytes_map[]
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*
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* Presently below is required since bytes_map[] is
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* tightly packed and cannot store the control value of 256.
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* Byte mask state is used to know if 256 needs to be returned.
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* Note that for control value of 256, the put() call stores 0
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* in the bytes_map[] and disables the corresponding bit in
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* byte_mask[].
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*/
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if (enabled)
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ucontrol->value.integer.value[0] = bytes_map[reg];
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else
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ucontrol->value.integer.value[0] = 256;
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return 0;
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}
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static int tegra210_amx_put_byte_map(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct soc_mixer_control *mc =
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(struct soc_mixer_control *)kcontrol->private_value;
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struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
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struct tegra210_amx *amx = snd_soc_component_get_drvdata(cmpnt);
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unsigned char *bytes_map = (unsigned char *)&amx->map;
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int reg = mc->reg;
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int value = ucontrol->value.integer.value[0];
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unsigned int mask_val = amx->byte_mask[reg / 32];
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if (value >= 0 && value <= 255)
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mask_val |= (1 << (reg % 32));
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else
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mask_val &= ~(1 << (reg % 32));
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if (mask_val == amx->byte_mask[reg / 32])
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return 0;
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/* Update byte map and slot */
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bytes_map[reg] = value % 256;
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amx->byte_mask[reg / 32] = mask_val;
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return 1;
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}
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static const struct snd_soc_dai_ops tegra210_amx_out_dai_ops = {
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.hw_params = tegra210_amx_out_hw_params,
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.startup = tegra210_amx_startup,
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};
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static const struct snd_soc_dai_ops tegra210_amx_in_dai_ops = {
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.hw_params = tegra210_amx_in_hw_params,
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};
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#define IN_DAI(id) \
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{ \
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.name = "AMX-RX-CIF" #id, \
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.playback = { \
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.stream_name = "RX" #id "-CIF-Playback",\
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.channels_min = 1, \
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.channels_max = 16, \
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.rates = SNDRV_PCM_RATE_8000_192000, \
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.formats = SNDRV_PCM_FMTBIT_S8 | \
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SNDRV_PCM_FMTBIT_S16_LE | \
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SNDRV_PCM_FMTBIT_S32_LE, \
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}, \
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.capture = { \
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.stream_name = "RX" #id "-CIF-Capture", \
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.channels_min = 1, \
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.channels_max = 16, \
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.rates = SNDRV_PCM_RATE_8000_192000, \
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.formats = SNDRV_PCM_FMTBIT_S8 | \
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SNDRV_PCM_FMTBIT_S16_LE | \
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SNDRV_PCM_FMTBIT_S32_LE, \
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}, \
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.ops = &tegra210_amx_in_dai_ops, \
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}
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#define OUT_DAI \
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{ \
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.name = "AMX-TX-CIF", \
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.playback = { \
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.stream_name = "TX-CIF-Playback", \
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.channels_min = 1, \
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.channels_max = 16, \
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.rates = SNDRV_PCM_RATE_8000_192000, \
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.formats = SNDRV_PCM_FMTBIT_S8 | \
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SNDRV_PCM_FMTBIT_S16_LE | \
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SNDRV_PCM_FMTBIT_S32_LE, \
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}, \
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.capture = { \
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.stream_name = "TX-CIF-Capture", \
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.channels_min = 1, \
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.channels_max = 16, \
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.rates = SNDRV_PCM_RATE_8000_192000, \
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.formats = SNDRV_PCM_FMTBIT_S8 | \
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SNDRV_PCM_FMTBIT_S16_LE | \
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SNDRV_PCM_FMTBIT_S32_LE, \
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}, \
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.ops = &tegra210_amx_out_dai_ops, \
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}
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static struct snd_soc_dai_driver tegra210_amx_dais[] = {
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IN_DAI(1),
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IN_DAI(2),
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IN_DAI(3),
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IN_DAI(4),
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OUT_DAI,
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};
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static const struct snd_soc_dapm_widget tegra210_amx_widgets[] = {
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SND_SOC_DAPM_AIF_IN("RX1", NULL, 0, TEGRA210_AMX_CTRL, 0, 0),
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SND_SOC_DAPM_AIF_IN("RX2", NULL, 0, TEGRA210_AMX_CTRL, 1, 0),
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SND_SOC_DAPM_AIF_IN("RX3", NULL, 0, TEGRA210_AMX_CTRL, 2, 0),
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SND_SOC_DAPM_AIF_IN("RX4", NULL, 0, TEGRA210_AMX_CTRL, 3, 0),
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SND_SOC_DAPM_AIF_OUT("TX", NULL, 0, TEGRA210_AMX_ENABLE,
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TEGRA210_AMX_ENABLE_SHIFT, 0),
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};
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#define STREAM_ROUTES(id, sname) \
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{ "RX" #id " XBAR-" sname, NULL, "RX" #id " XBAR-TX" }, \
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{ "RX" #id "-CIF-" sname, NULL, "RX" #id " XBAR-" sname },\
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{ "RX" #id, NULL, "RX" #id "-CIF-" sname }, \
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{ "TX", NULL, "RX" #id }, \
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{ "TX-CIF-" sname, NULL, "TX" }, \
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{ "XBAR-" sname, NULL, "TX-CIF-" sname }, \
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{ "XBAR-RX", NULL, "XBAR-" sname }
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#define AMX_ROUTES(id) \
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STREAM_ROUTES(id, "Playback"), \
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STREAM_ROUTES(id, "Capture")
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static const struct snd_soc_dapm_route tegra210_amx_routes[] = {
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AMX_ROUTES(1),
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AMX_ROUTES(2),
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AMX_ROUTES(3),
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AMX_ROUTES(4),
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};
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#define TEGRA210_AMX_BYTE_MAP_CTRL(reg) \
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SOC_SINGLE_EXT("Byte Map " #reg, reg, 0, 256, 0, \
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tegra210_amx_get_byte_map, \
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tegra210_amx_put_byte_map)
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static struct snd_kcontrol_new tegra210_amx_controls[] = {
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TEGRA210_AMX_BYTE_MAP_CTRL(0),
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TEGRA210_AMX_BYTE_MAP_CTRL(1),
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TEGRA210_AMX_BYTE_MAP_CTRL(2),
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TEGRA210_AMX_BYTE_MAP_CTRL(3),
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TEGRA210_AMX_BYTE_MAP_CTRL(4),
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TEGRA210_AMX_BYTE_MAP_CTRL(5),
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TEGRA210_AMX_BYTE_MAP_CTRL(6),
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TEGRA210_AMX_BYTE_MAP_CTRL(7),
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TEGRA210_AMX_BYTE_MAP_CTRL(8),
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TEGRA210_AMX_BYTE_MAP_CTRL(9),
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TEGRA210_AMX_BYTE_MAP_CTRL(10),
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TEGRA210_AMX_BYTE_MAP_CTRL(11),
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TEGRA210_AMX_BYTE_MAP_CTRL(12),
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TEGRA210_AMX_BYTE_MAP_CTRL(13),
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TEGRA210_AMX_BYTE_MAP_CTRL(14),
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TEGRA210_AMX_BYTE_MAP_CTRL(15),
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TEGRA210_AMX_BYTE_MAP_CTRL(16),
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TEGRA210_AMX_BYTE_MAP_CTRL(17),
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TEGRA210_AMX_BYTE_MAP_CTRL(18),
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TEGRA210_AMX_BYTE_MAP_CTRL(19),
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TEGRA210_AMX_BYTE_MAP_CTRL(20),
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TEGRA210_AMX_BYTE_MAP_CTRL(21),
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TEGRA210_AMX_BYTE_MAP_CTRL(22),
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TEGRA210_AMX_BYTE_MAP_CTRL(23),
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TEGRA210_AMX_BYTE_MAP_CTRL(24),
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TEGRA210_AMX_BYTE_MAP_CTRL(25),
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TEGRA210_AMX_BYTE_MAP_CTRL(26),
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TEGRA210_AMX_BYTE_MAP_CTRL(27),
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TEGRA210_AMX_BYTE_MAP_CTRL(28),
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TEGRA210_AMX_BYTE_MAP_CTRL(29),
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TEGRA210_AMX_BYTE_MAP_CTRL(30),
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TEGRA210_AMX_BYTE_MAP_CTRL(31),
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TEGRA210_AMX_BYTE_MAP_CTRL(32),
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TEGRA210_AMX_BYTE_MAP_CTRL(33),
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TEGRA210_AMX_BYTE_MAP_CTRL(34),
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TEGRA210_AMX_BYTE_MAP_CTRL(35),
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TEGRA210_AMX_BYTE_MAP_CTRL(36),
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TEGRA210_AMX_BYTE_MAP_CTRL(37),
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TEGRA210_AMX_BYTE_MAP_CTRL(38),
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TEGRA210_AMX_BYTE_MAP_CTRL(39),
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TEGRA210_AMX_BYTE_MAP_CTRL(40),
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TEGRA210_AMX_BYTE_MAP_CTRL(41),
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TEGRA210_AMX_BYTE_MAP_CTRL(42),
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TEGRA210_AMX_BYTE_MAP_CTRL(43),
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TEGRA210_AMX_BYTE_MAP_CTRL(44),
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TEGRA210_AMX_BYTE_MAP_CTRL(45),
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TEGRA210_AMX_BYTE_MAP_CTRL(46),
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TEGRA210_AMX_BYTE_MAP_CTRL(47),
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TEGRA210_AMX_BYTE_MAP_CTRL(48),
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TEGRA210_AMX_BYTE_MAP_CTRL(49),
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TEGRA210_AMX_BYTE_MAP_CTRL(50),
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TEGRA210_AMX_BYTE_MAP_CTRL(51),
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TEGRA210_AMX_BYTE_MAP_CTRL(52),
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TEGRA210_AMX_BYTE_MAP_CTRL(53),
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TEGRA210_AMX_BYTE_MAP_CTRL(54),
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TEGRA210_AMX_BYTE_MAP_CTRL(55),
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TEGRA210_AMX_BYTE_MAP_CTRL(56),
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TEGRA210_AMX_BYTE_MAP_CTRL(57),
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TEGRA210_AMX_BYTE_MAP_CTRL(58),
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TEGRA210_AMX_BYTE_MAP_CTRL(59),
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TEGRA210_AMX_BYTE_MAP_CTRL(60),
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TEGRA210_AMX_BYTE_MAP_CTRL(61),
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TEGRA210_AMX_BYTE_MAP_CTRL(62),
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TEGRA210_AMX_BYTE_MAP_CTRL(63),
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};
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static const struct snd_soc_component_driver tegra210_amx_cmpnt = {
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.dapm_widgets = tegra210_amx_widgets,
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.num_dapm_widgets = ARRAY_SIZE(tegra210_amx_widgets),
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.dapm_routes = tegra210_amx_routes,
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.num_dapm_routes = ARRAY_SIZE(tegra210_amx_routes),
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.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;
|
|
const struct of_device_id *match;
|
|
struct tegra210_amx_soc_data *soc_data;
|
|
|
|
match = of_match_device(tegra210_amx_of_match, dev);
|
|
|
|
soc_data = (struct tegra210_amx_soc_data *)match->data;
|
|
|
|
amx = devm_kzalloc(dev, sizeof(*amx), GFP_KERNEL);
|
|
if (!amx)
|
|
return -ENOMEM;
|
|
|
|
amx->soc_data = soc_data;
|
|
|
|
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,
|
|
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 int tegra210_amx_platform_remove(struct platform_device *pdev)
|
|
{
|
|
pm_runtime_disable(&pdev->dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
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 = 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");
|