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linux/sound/soc/tegra/tegra210_adx.c

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ASoC: tegra: Add Tegra210 based ADX driver The Audio Demultiplexer (ADX) block takes an input stream with up to 16 channels and demultiplexes it into four output streams of up to 16 channels each. A byte RAM helps to form output frames by any combination of bytes from the input frame. Its design is identical to that of byte RAM in the AMX except that the data flow direction is reversed. This patch registers ADX driver with ASoC framework. The component driver exposes DAPM widgets, routes and kcontrols for the device. The DAI driver exposes ADX interfaces, which can be used to connect different components in the ASoC layer. Makefile and Kconfig support is added to allow build the driver. It can be enabled in the DT via "nvidia,tegra210-adx" compatible binding. Signed-off-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/1631551342-25469-10-git-send-email-spujar@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-13 22:12:17 +05:30
// SPDX-License-Identifier: GPL-2.0-only
//
// tegra210_adx.c - Tegra210 ADX driver
//
// Copyright (c) 2021 NVIDIA CORPORATION. All rights reserved.
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.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_adx.h"
#include "tegra_cif.h"
static const struct reg_default tegra210_adx_reg_defaults[] = {
{ TEGRA210_ADX_RX_INT_MASK, 0x00000001},
{ TEGRA210_ADX_RX_CIF_CTRL, 0x00007000},
{ TEGRA210_ADX_TX_INT_MASK, 0x0000000f },
{ TEGRA210_ADX_TX1_CIF_CTRL, 0x00007000},
{ TEGRA210_ADX_TX2_CIF_CTRL, 0x00007000},
{ TEGRA210_ADX_TX3_CIF_CTRL, 0x00007000},
{ TEGRA210_ADX_TX4_CIF_CTRL, 0x00007000},
{ TEGRA210_ADX_CG, 0x1},
{ TEGRA210_ADX_CFG_RAM_CTRL, 0x00004000},
};
static void tegra210_adx_write_map_ram(struct tegra210_adx *adx)
{
int i;
regmap_write(adx->regmap, TEGRA210_ADX_CFG_RAM_CTRL,
TEGRA210_ADX_CFG_RAM_CTRL_SEQ_ACCESS_EN |
TEGRA210_ADX_CFG_RAM_CTRL_ADDR_INIT_EN |
TEGRA210_ADX_CFG_RAM_CTRL_RW_WRITE);
for (i = 0; i < TEGRA210_ADX_RAM_DEPTH; i++)
regmap_write(adx->regmap, TEGRA210_ADX_CFG_RAM_DATA,
adx->map[i]);
regmap_write(adx->regmap, TEGRA210_ADX_IN_BYTE_EN0, adx->byte_mask[0]);
regmap_write(adx->regmap, TEGRA210_ADX_IN_BYTE_EN1, adx->byte_mask[1]);
}
static int tegra210_adx_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct tegra210_adx *adx = snd_soc_dai_get_drvdata(dai);
unsigned int val;
int err;
/* Ensure if ADX status is disabled */
err = regmap_read_poll_timeout_atomic(adx->regmap, TEGRA210_ADX_STATUS,
val, !(val & 0x1), 10, 10000);
if (err < 0) {
dev_err(dai->dev, "failed to stop ADX, 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(adx->regmap, TEGRA210_ADX_SOFT_RESET,
TEGRA210_ADX_SOFT_RESET_SOFT_RESET_MASK,
TEGRA210_ADX_SOFT_RESET_SOFT_EN);
err = regmap_read_poll_timeout(adx->regmap, TEGRA210_ADX_SOFT_RESET,
val, !(val & 0x1), 10, 10000);
if (err < 0) {
dev_err(dai->dev, "failed to reset ADX, err = %d\n", err);
return err;
}
return 0;
}
static int __maybe_unused tegra210_adx_runtime_suspend(struct device *dev)
{
struct tegra210_adx *adx = dev_get_drvdata(dev);
regcache_cache_only(adx->regmap, true);
regcache_mark_dirty(adx->regmap);
return 0;
}
static int __maybe_unused tegra210_adx_runtime_resume(struct device *dev)
{
struct tegra210_adx *adx = dev_get_drvdata(dev);
regcache_cache_only(adx->regmap, false);
regcache_sync(adx->regmap);
tegra210_adx_write_map_ram(adx);
return 0;
}
static int tegra210_adx_set_audio_cif(struct snd_soc_dai *dai,
unsigned int channels,
unsigned int format,
unsigned int reg)
{
struct tegra210_adx *adx = snd_soc_dai_get_drvdata(dai);
struct tegra_cif_conf cif_conf;
int audio_bits;
memset(&cif_conf, 0, sizeof(struct tegra_cif_conf));
if (channels < 1 || channels > 16)
return -EINVAL;
switch (format) {
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(adx->regmap, reg, &cif_conf);
return 0;
}
static int tegra210_adx_out_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
return tegra210_adx_set_audio_cif(dai, params_channels(params),
params_format(params),
TEGRA210_ADX_TX1_CIF_CTRL + ((dai->id - 1) * TEGRA210_ADX_AUDIOCIF_CH_STRIDE));
}
static int tegra210_adx_in_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
return tegra210_adx_set_audio_cif(dai, params_channels(params),
params_format(params),
TEGRA210_ADX_RX_CIF_CTRL);
}
static int tegra210_adx_get_byte_map(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra210_adx *adx = snd_soc_component_get_drvdata(cmpnt);
struct soc_mixer_control *mc;
unsigned char *bytes_map = (unsigned char *)&adx->map;
int enabled;
mc = (struct soc_mixer_control *)kcontrol->private_value;
enabled = adx->byte_mask[mc->reg / 32] & (1 << (mc->reg % 32));
if (enabled)
ucontrol->value.integer.value[0] = bytes_map[mc->reg];
else
ucontrol->value.integer.value[0] = 0;
return 0;
}
static int tegra210_adx_put_byte_map(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
struct tegra210_adx *adx = snd_soc_component_get_drvdata(cmpnt);
unsigned char *bytes_map = (unsigned char *)&adx->map;
int value = ucontrol->value.integer.value[0];
struct soc_mixer_control *mc =
ASoC: tegra: delete a semicolon extra semicolons could be deleted. Signed-off-by: Li kunyu <kunyu@nfschina.com> Link: https://lore.kernel.org/r/20220630020347.7148-1-kunyu@nfschina.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-06-30 10:03:47 +08:00
(struct soc_mixer_control *)kcontrol->private_value;
ASoC: tegra: Add Tegra210 based ADX driver The Audio Demultiplexer (ADX) block takes an input stream with up to 16 channels and demultiplexes it into four output streams of up to 16 channels each. A byte RAM helps to form output frames by any combination of bytes from the input frame. Its design is identical to that of byte RAM in the AMX except that the data flow direction is reversed. This patch registers ADX driver with ASoC framework. The component driver exposes DAPM widgets, routes and kcontrols for the device. The DAI driver exposes ADX interfaces, which can be used to connect different components in the ASoC layer. Makefile and Kconfig support is added to allow build the driver. It can be enabled in the DT via "nvidia,tegra210-adx" compatible binding. Signed-off-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/1631551342-25469-10-git-send-email-spujar@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-13 22:12:17 +05:30
ASoC: tegra: Fix kcontrol put callback in ADX The kcontrol put callback is expected to return 1 when there is change in HW or when the update is acknowledged by driver. This would ensure that change notifications are sent to subscribed applications. Filter out duplicate updates in ADX driver. Fixes: a99ab6f395a9 ("ASoC: tegra: Add Tegra210 based ADX driver") Signed-off-by: Sameer Pujar <spujar@nvidia.com> Suggested-by: Jaroslav Kysela <perex@perex.cz> Suggested-by: Mark Brown <broonie@kernel.org> Reviewed-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/1637219231-406-16-git-send-email-spujar@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-11-18 12:37:10 +05:30
if (value == bytes_map[mc->reg])
return 0;
ASoC: tegra: Add Tegra210 based ADX driver The Audio Demultiplexer (ADX) block takes an input stream with up to 16 channels and demultiplexes it into four output streams of up to 16 channels each. A byte RAM helps to form output frames by any combination of bytes from the input frame. Its design is identical to that of byte RAM in the AMX except that the data flow direction is reversed. This patch registers ADX driver with ASoC framework. The component driver exposes DAPM widgets, routes and kcontrols for the device. The DAI driver exposes ADX interfaces, which can be used to connect different components in the ASoC layer. Makefile and Kconfig support is added to allow build the driver. It can be enabled in the DT via "nvidia,tegra210-adx" compatible binding. Signed-off-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/1631551342-25469-10-git-send-email-spujar@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-13 22:12:17 +05:30
if (value >= 0 && value <= 255) {
/* update byte map and enable slot */
bytes_map[mc->reg] = value;
adx->byte_mask[mc->reg / 32] |= (1 << (mc->reg % 32));
} else {
/* reset byte map and disable slot */
bytes_map[mc->reg] = 0;
adx->byte_mask[mc->reg / 32] &= ~(1 << (mc->reg % 32));
}
return 1;
}
ASoC: tegra: Constify static snd_soc_dai_ops structs The only usage of these is to assign their address to the ops field in the snd_soc_dai_driver struct, which is a pointer to const. Make them const to allow the compiler to put them in read-only memory. Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Acked-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/20210922205438.34519-1-rikard.falkeborn@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-22 22:54:38 +02:00
static const struct snd_soc_dai_ops tegra210_adx_in_dai_ops = {
ASoC: tegra: Add Tegra210 based ADX driver The Audio Demultiplexer (ADX) block takes an input stream with up to 16 channels and demultiplexes it into four output streams of up to 16 channels each. A byte RAM helps to form output frames by any combination of bytes from the input frame. Its design is identical to that of byte RAM in the AMX except that the data flow direction is reversed. This patch registers ADX driver with ASoC framework. The component driver exposes DAPM widgets, routes and kcontrols for the device. The DAI driver exposes ADX interfaces, which can be used to connect different components in the ASoC layer. Makefile and Kconfig support is added to allow build the driver. It can be enabled in the DT via "nvidia,tegra210-adx" compatible binding. Signed-off-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/1631551342-25469-10-git-send-email-spujar@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-13 22:12:17 +05:30
.hw_params = tegra210_adx_in_hw_params,
.startup = tegra210_adx_startup,
};
ASoC: tegra: Constify static snd_soc_dai_ops structs The only usage of these is to assign their address to the ops field in the snd_soc_dai_driver struct, which is a pointer to const. Make them const to allow the compiler to put them in read-only memory. Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Acked-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/20210922205438.34519-1-rikard.falkeborn@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-22 22:54:38 +02:00
static const struct snd_soc_dai_ops tegra210_adx_out_dai_ops = {
ASoC: tegra: Add Tegra210 based ADX driver The Audio Demultiplexer (ADX) block takes an input stream with up to 16 channels and demultiplexes it into four output streams of up to 16 channels each. A byte RAM helps to form output frames by any combination of bytes from the input frame. Its design is identical to that of byte RAM in the AMX except that the data flow direction is reversed. This patch registers ADX driver with ASoC framework. The component driver exposes DAPM widgets, routes and kcontrols for the device. The DAI driver exposes ADX interfaces, which can be used to connect different components in the ASoC layer. Makefile and Kconfig support is added to allow build the driver. It can be enabled in the DT via "nvidia,tegra210-adx" compatible binding. Signed-off-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/1631551342-25469-10-git-send-email-spujar@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-13 22:12:17 +05:30
.hw_params = tegra210_adx_out_hw_params,
};
#define IN_DAI \
{ \
.name = "ADX-RX-CIF", \
.playback = { \
.stream_name = "RX-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-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_adx_in_dai_ops, \
}
#define OUT_DAI(id) \
{ \
.name = "ADX-TX" #id "-CIF", \
.playback = { \
.stream_name = "TX" #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 = "TX" #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_adx_out_dai_ops, \
}
static struct snd_soc_dai_driver tegra210_adx_dais[] = {
IN_DAI,
OUT_DAI(1),
OUT_DAI(2),
OUT_DAI(3),
OUT_DAI(4),
};
static const struct snd_soc_dapm_widget tegra210_adx_widgets[] = {
SND_SOC_DAPM_AIF_IN("RX", NULL, 0, TEGRA210_ADX_ENABLE,
TEGRA210_ADX_ENABLE_SHIFT, 0),
SND_SOC_DAPM_AIF_OUT("TX1", NULL, 0, TEGRA210_ADX_CTRL, 0, 0),
SND_SOC_DAPM_AIF_OUT("TX2", NULL, 0, TEGRA210_ADX_CTRL, 1, 0),
SND_SOC_DAPM_AIF_OUT("TX3", NULL, 0, TEGRA210_ADX_CTRL, 2, 0),
SND_SOC_DAPM_AIF_OUT("TX4", NULL, 0, TEGRA210_ADX_CTRL, 3, 0),
};
#define STREAM_ROUTES(id, sname) \
{ "XBAR-" sname, NULL, "XBAR-TX" }, \
{ "RX-CIF-" sname, NULL, "XBAR-" sname }, \
{ "RX", NULL, "RX-CIF-" sname }, \
{ "TX" #id, NULL, "RX" }, \
{ "TX" #id "-CIF-" sname, NULL, "TX" #id }, \
{ "TX" #id " XBAR-" sname, NULL, "TX" #id "-CIF-" sname }, \
{ "TX" #id " XBAR-RX", NULL, "TX" #id " XBAR-" sname }
#define ADX_ROUTES(id) \
STREAM_ROUTES(id, "Playback"), \
STREAM_ROUTES(id, "Capture")
#define STREAM_ROUTES(id, sname) \
{ "XBAR-" sname, NULL, "XBAR-TX" }, \
{ "RX-CIF-" sname, NULL, "XBAR-" sname }, \
{ "RX", NULL, "RX-CIF-" sname }, \
{ "TX" #id, NULL, "RX" }, \
{ "TX" #id "-CIF-" sname, NULL, "TX" #id }, \
{ "TX" #id " XBAR-" sname, NULL, "TX" #id "-CIF-" sname }, \
{ "TX" #id " XBAR-RX", NULL, "TX" #id " XBAR-" sname }
#define ADX_ROUTES(id) \
STREAM_ROUTES(id, "Playback"), \
STREAM_ROUTES(id, "Capture")
static const struct snd_soc_dapm_route tegra210_adx_routes[] = {
ADX_ROUTES(1),
ADX_ROUTES(2),
ADX_ROUTES(3),
ADX_ROUTES(4),
};
#define TEGRA210_ADX_BYTE_MAP_CTRL(reg) \
SOC_SINGLE_EXT("Byte Map " #reg, reg, 0, 256, 0, \
tegra210_adx_get_byte_map, \
tegra210_adx_put_byte_map)
static struct snd_kcontrol_new tegra210_adx_controls[] = {
TEGRA210_ADX_BYTE_MAP_CTRL(0),
TEGRA210_ADX_BYTE_MAP_CTRL(1),
TEGRA210_ADX_BYTE_MAP_CTRL(2),
TEGRA210_ADX_BYTE_MAP_CTRL(3),
TEGRA210_ADX_BYTE_MAP_CTRL(4),
TEGRA210_ADX_BYTE_MAP_CTRL(5),
TEGRA210_ADX_BYTE_MAP_CTRL(6),
TEGRA210_ADX_BYTE_MAP_CTRL(7),
TEGRA210_ADX_BYTE_MAP_CTRL(8),
TEGRA210_ADX_BYTE_MAP_CTRL(9),
TEGRA210_ADX_BYTE_MAP_CTRL(10),
TEGRA210_ADX_BYTE_MAP_CTRL(11),
TEGRA210_ADX_BYTE_MAP_CTRL(12),
TEGRA210_ADX_BYTE_MAP_CTRL(13),
TEGRA210_ADX_BYTE_MAP_CTRL(14),
TEGRA210_ADX_BYTE_MAP_CTRL(15),
TEGRA210_ADX_BYTE_MAP_CTRL(16),
TEGRA210_ADX_BYTE_MAP_CTRL(17),
TEGRA210_ADX_BYTE_MAP_CTRL(18),
TEGRA210_ADX_BYTE_MAP_CTRL(19),
TEGRA210_ADX_BYTE_MAP_CTRL(20),
TEGRA210_ADX_BYTE_MAP_CTRL(21),
TEGRA210_ADX_BYTE_MAP_CTRL(22),
TEGRA210_ADX_BYTE_MAP_CTRL(23),
TEGRA210_ADX_BYTE_MAP_CTRL(24),
TEGRA210_ADX_BYTE_MAP_CTRL(25),
TEGRA210_ADX_BYTE_MAP_CTRL(26),
TEGRA210_ADX_BYTE_MAP_CTRL(27),
TEGRA210_ADX_BYTE_MAP_CTRL(28),
TEGRA210_ADX_BYTE_MAP_CTRL(29),
TEGRA210_ADX_BYTE_MAP_CTRL(30),
TEGRA210_ADX_BYTE_MAP_CTRL(31),
TEGRA210_ADX_BYTE_MAP_CTRL(32),
TEGRA210_ADX_BYTE_MAP_CTRL(33),
TEGRA210_ADX_BYTE_MAP_CTRL(34),
TEGRA210_ADX_BYTE_MAP_CTRL(35),
TEGRA210_ADX_BYTE_MAP_CTRL(36),
TEGRA210_ADX_BYTE_MAP_CTRL(37),
TEGRA210_ADX_BYTE_MAP_CTRL(38),
TEGRA210_ADX_BYTE_MAP_CTRL(39),
TEGRA210_ADX_BYTE_MAP_CTRL(40),
TEGRA210_ADX_BYTE_MAP_CTRL(41),
TEGRA210_ADX_BYTE_MAP_CTRL(42),
TEGRA210_ADX_BYTE_MAP_CTRL(43),
TEGRA210_ADX_BYTE_MAP_CTRL(44),
TEGRA210_ADX_BYTE_MAP_CTRL(45),
TEGRA210_ADX_BYTE_MAP_CTRL(46),
TEGRA210_ADX_BYTE_MAP_CTRL(47),
TEGRA210_ADX_BYTE_MAP_CTRL(48),
TEGRA210_ADX_BYTE_MAP_CTRL(49),
TEGRA210_ADX_BYTE_MAP_CTRL(50),
TEGRA210_ADX_BYTE_MAP_CTRL(51),
TEGRA210_ADX_BYTE_MAP_CTRL(52),
TEGRA210_ADX_BYTE_MAP_CTRL(53),
TEGRA210_ADX_BYTE_MAP_CTRL(54),
TEGRA210_ADX_BYTE_MAP_CTRL(55),
TEGRA210_ADX_BYTE_MAP_CTRL(56),
TEGRA210_ADX_BYTE_MAP_CTRL(57),
TEGRA210_ADX_BYTE_MAP_CTRL(58),
TEGRA210_ADX_BYTE_MAP_CTRL(59),
TEGRA210_ADX_BYTE_MAP_CTRL(60),
TEGRA210_ADX_BYTE_MAP_CTRL(61),
TEGRA210_ADX_BYTE_MAP_CTRL(62),
TEGRA210_ADX_BYTE_MAP_CTRL(63),
};
static const struct snd_soc_component_driver tegra210_adx_cmpnt = {
.dapm_widgets = tegra210_adx_widgets,
.num_dapm_widgets = ARRAY_SIZE(tegra210_adx_widgets),
.dapm_routes = tegra210_adx_routes,
.num_dapm_routes = ARRAY_SIZE(tegra210_adx_routes),
.controls = tegra210_adx_controls,
.num_controls = ARRAY_SIZE(tegra210_adx_controls),
};
static bool tegra210_adx_wr_reg(struct device *dev,
unsigned int reg)
{
switch (reg) {
case TEGRA210_ADX_TX_INT_MASK ... TEGRA210_ADX_TX4_CIF_CTRL:
case TEGRA210_ADX_RX_INT_MASK ... TEGRA210_ADX_RX_CIF_CTRL:
case TEGRA210_ADX_ENABLE ... TEGRA210_ADX_CG:
case TEGRA210_ADX_CTRL ... TEGRA210_ADX_IN_BYTE_EN1:
case TEGRA210_ADX_CFG_RAM_CTRL ... TEGRA210_ADX_CFG_RAM_DATA:
return true;
default:
return false;
}
}
static bool tegra210_adx_rd_reg(struct device *dev,
unsigned int reg)
{
switch (reg) {
case TEGRA210_ADX_RX_STATUS ... TEGRA210_ADX_CFG_RAM_DATA:
return true;
default:
return false;
}
}
static bool tegra210_adx_volatile_reg(struct device *dev,
unsigned int reg)
{
switch (reg) {
case TEGRA210_ADX_RX_STATUS:
case TEGRA210_ADX_RX_INT_STATUS:
case TEGRA210_ADX_RX_INT_SET:
case TEGRA210_ADX_TX_STATUS:
case TEGRA210_ADX_TX_INT_STATUS:
case TEGRA210_ADX_TX_INT_SET:
case TEGRA210_ADX_SOFT_RESET:
case TEGRA210_ADX_STATUS:
case TEGRA210_ADX_INT_STATUS:
case TEGRA210_ADX_CFG_RAM_CTRL:
case TEGRA210_ADX_CFG_RAM_DATA:
return true;
default:
break;
}
return false;
}
static const struct regmap_config tegra210_adx_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = TEGRA210_ADX_CFG_RAM_DATA,
.writeable_reg = tegra210_adx_wr_reg,
.readable_reg = tegra210_adx_rd_reg,
.volatile_reg = tegra210_adx_volatile_reg,
.reg_defaults = tegra210_adx_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(tegra210_adx_reg_defaults),
.cache_type = REGCACHE_FLAT,
};
static const struct of_device_id tegra210_adx_of_match[] = {
{ .compatible = "nvidia,tegra210-adx" },
{},
};
MODULE_DEVICE_TABLE(of, tegra210_adx_of_match);
static int tegra210_adx_platform_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct tegra210_adx *adx;
void __iomem *regs;
int err;
adx = devm_kzalloc(dev, sizeof(*adx), GFP_KERNEL);
if (!adx)
return -ENOMEM;
dev_set_drvdata(dev, adx);
regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(regs))
return PTR_ERR(regs);
adx->regmap = devm_regmap_init_mmio(dev, regs,
&tegra210_adx_regmap_config);
if (IS_ERR(adx->regmap)) {
dev_err(dev, "regmap init failed\n");
return PTR_ERR(adx->regmap);
}
regcache_cache_only(adx->regmap, true);
err = devm_snd_soc_register_component(dev, &tegra210_adx_cmpnt,
tegra210_adx_dais,
ARRAY_SIZE(tegra210_adx_dais));
if (err) {
dev_err(dev, "can't register ADX component, err: %d\n", err);
return err;
}
pm_runtime_enable(dev);
return 0;
}
static int tegra210_adx_platform_remove(struct platform_device *pdev)
{
pm_runtime_disable(&pdev->dev);
return 0;
}
static const struct dev_pm_ops tegra210_adx_pm_ops = {
SET_RUNTIME_PM_OPS(tegra210_adx_runtime_suspend,
tegra210_adx_runtime_resume, NULL)
ASoC: tegra: Use normal system sleep for ADX The driver currently subscribes for a late system sleep call. The initcall_debug log shows that suspend call for ADX device happens after the parent device (AHUB). This seems to cause suspend failure on Jetson TX2 platform. Also there is no use of having late system sleep specifically for ADX device. Fix the order by using normal system sleep. Fixes: a99ab6f395a9 ("ASoC: tegra: Add Tegra210 based ADX driver") Cc: stable@vger.kernel.org Signed-off-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/1637676459-31191-7-git-send-email-spujar@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-11-23 19:37:39 +05:30
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
ASoC: tegra: Add Tegra210 based ADX driver The Audio Demultiplexer (ADX) block takes an input stream with up to 16 channels and demultiplexes it into four output streams of up to 16 channels each. A byte RAM helps to form output frames by any combination of bytes from the input frame. Its design is identical to that of byte RAM in the AMX except that the data flow direction is reversed. This patch registers ADX driver with ASoC framework. The component driver exposes DAPM widgets, routes and kcontrols for the device. The DAI driver exposes ADX interfaces, which can be used to connect different components in the ASoC layer. Makefile and Kconfig support is added to allow build the driver. It can be enabled in the DT via "nvidia,tegra210-adx" compatible binding. Signed-off-by: Sameer Pujar <spujar@nvidia.com> Link: https://lore.kernel.org/r/1631551342-25469-10-git-send-email-spujar@nvidia.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-13 22:12:17 +05:30
};
static struct platform_driver tegra210_adx_driver = {
.driver = {
.name = "tegra210-adx",
.of_match_table = tegra210_adx_of_match,
.pm = &tegra210_adx_pm_ops,
},
.probe = tegra210_adx_platform_probe,
.remove = tegra210_adx_platform_remove,
};
module_platform_driver(tegra210_adx_driver);
MODULE_AUTHOR("Arun Shamanna Lakshmi <aruns@nvidia.com>");
MODULE_DESCRIPTION("Tegra210 ADX ASoC driver");
MODULE_LICENSE("GPL v2");
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