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-rw-r--r--sound/soc/tegra/tegra210_mixer.c684
1 files changed, 684 insertions, 0 deletions
diff --git a/sound/soc/tegra/tegra210_mixer.c b/sound/soc/tegra/tegra210_mixer.c
new file mode 100644
index 0000000000..035e9035b5
--- /dev/null
+++ b/sound/soc/tegra/tegra210_mixer.c
@@ -0,0 +1,684 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// tegra210_mixer.c - Tegra210 MIXER 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_mixer.h"
+#include "tegra_cif.h"
+
+#define MIXER_REG(reg, id) ((reg) + ((id) * TEGRA210_MIXER_REG_STRIDE))
+#define MIXER_REG_BASE(reg) ((reg) % TEGRA210_MIXER_REG_STRIDE)
+
+#define MIXER_GAIN_CFG_RAM_ADDR(id) \
+ (TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_0 + \
+ ((id) * TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_STRIDE))
+
+#define MIXER_RX_REG_DEFAULTS(id) \
+ { MIXER_REG(TEGRA210_MIXER_RX1_CIF_CTRL, id), 0x00007700}, \
+ { MIXER_REG(TEGRA210_MIXER_RX1_CTRL, id), 0x00010823}, \
+ { MIXER_REG(TEGRA210_MIXER_RX1_PEAK_CTRL, id), 0x000012c0}
+
+#define MIXER_TX_REG_DEFAULTS(id) \
+ { MIXER_REG(TEGRA210_MIXER_TX1_INT_MASK, (id)), 0x00000001}, \
+ { MIXER_REG(TEGRA210_MIXER_TX1_CIF_CTRL, (id)), 0x00007700}
+
+#define REG_DURATION_PARAM(reg, i) ((reg) + NUM_GAIN_POLY_COEFFS + 1 + (i))
+
+static const struct reg_default tegra210_mixer_reg_defaults[] = {
+ /* Inputs */
+ MIXER_RX_REG_DEFAULTS(0),
+ MIXER_RX_REG_DEFAULTS(1),
+ MIXER_RX_REG_DEFAULTS(2),
+ MIXER_RX_REG_DEFAULTS(3),
+ MIXER_RX_REG_DEFAULTS(4),
+ MIXER_RX_REG_DEFAULTS(5),
+ MIXER_RX_REG_DEFAULTS(6),
+ MIXER_RX_REG_DEFAULTS(7),
+ MIXER_RX_REG_DEFAULTS(8),
+ MIXER_RX_REG_DEFAULTS(9),
+ /* Outputs */
+ MIXER_TX_REG_DEFAULTS(0),
+ MIXER_TX_REG_DEFAULTS(1),
+ MIXER_TX_REG_DEFAULTS(2),
+ MIXER_TX_REG_DEFAULTS(3),
+ MIXER_TX_REG_DEFAULTS(4),
+
+ { TEGRA210_MIXER_CG, 0x00000001},
+ { TEGRA210_MIXER_GAIN_CFG_RAM_CTRL, 0x00004000},
+ { TEGRA210_MIXER_PEAKM_RAM_CTRL, 0x00004000},
+ { TEGRA210_MIXER_ENABLE, 0x1 },
+};
+
+/* Default gain parameters */
+static const struct tegra210_mixer_gain_params gain_params = {
+ /* Polynomial coefficients */
+ { 0, 0, 0, 0, 0, 0, 0, 0x1000000, 0 },
+ /* Gain value */
+ 0x10000,
+ /* Duration Parameters */
+ { 0, 0, 0x400, 0x8000000 },
+};
+
+static int __maybe_unused tegra210_mixer_runtime_suspend(struct device *dev)
+{
+ struct tegra210_mixer *mixer = dev_get_drvdata(dev);
+
+ regcache_cache_only(mixer->regmap, true);
+ regcache_mark_dirty(mixer->regmap);
+
+ return 0;
+}
+
+static int __maybe_unused tegra210_mixer_runtime_resume(struct device *dev)
+{
+ struct tegra210_mixer *mixer = dev_get_drvdata(dev);
+
+ regcache_cache_only(mixer->regmap, false);
+ regcache_sync(mixer->regmap);
+
+ return 0;
+}
+
+static int tegra210_mixer_write_ram(struct tegra210_mixer *mixer,
+ unsigned int addr,
+ unsigned int coef)
+{
+ unsigned int reg, val;
+ int err;
+
+ /* Check if busy */
+ err = regmap_read_poll_timeout(mixer->regmap,
+ TEGRA210_MIXER_GAIN_CFG_RAM_CTRL,
+ val, !(val & 0x80000000), 10, 10000);
+ if (err < 0)
+ return err;
+
+ reg = (addr << TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_SHIFT) &
+ TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_MASK;
+ reg |= TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_INIT_EN;
+ reg |= TEGRA210_MIXER_GAIN_CFG_RAM_RW_WRITE;
+ reg |= TEGRA210_MIXER_GAIN_CFG_RAM_SEQ_ACCESS_EN;
+
+ regmap_write(mixer->regmap,
+ TEGRA210_MIXER_GAIN_CFG_RAM_CTRL,
+ reg);
+ regmap_write(mixer->regmap,
+ TEGRA210_MIXER_GAIN_CFG_RAM_DATA,
+ coef);
+
+ return 0;
+}
+
+static int tegra210_mixer_configure_gain(struct snd_soc_component *cmpnt,
+ unsigned int id, bool instant_gain)
+{
+ struct tegra210_mixer *mixer = snd_soc_component_get_drvdata(cmpnt);
+ unsigned int reg = MIXER_GAIN_CFG_RAM_ADDR(id);
+ int err, i;
+
+ pm_runtime_get_sync(cmpnt->dev);
+
+ /* Write default gain poly coefficients */
+ for (i = 0; i < NUM_GAIN_POLY_COEFFS; i++) {
+ err = tegra210_mixer_write_ram(mixer, reg + i,
+ gain_params.poly_coeff[i]);
+
+ if (err < 0)
+ goto rpm_put;
+ }
+
+ /* Write stored gain value */
+ err = tegra210_mixer_write_ram(mixer, reg + NUM_GAIN_POLY_COEFFS,
+ mixer->gain_value[id]);
+ if (err < 0)
+ goto rpm_put;
+
+ /* Write duration parameters */
+ for (i = 0; i < NUM_DURATION_PARMS; i++) {
+ int val;
+
+ if (instant_gain)
+ val = 1;
+ else
+ val = gain_params.duration[i];
+
+ err = tegra210_mixer_write_ram(mixer,
+ REG_DURATION_PARAM(reg, i),
+ val);
+ if (err < 0)
+ goto rpm_put;
+ }
+
+ /* Trigger to apply gain configurations */
+ err = tegra210_mixer_write_ram(mixer, reg + REG_CFG_DONE_TRIGGER,
+ VAL_CFG_DONE_TRIGGER);
+
+rpm_put:
+ pm_runtime_put(cmpnt->dev);
+
+ return err;
+}
+
+static int tegra210_mixer_get_gain(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_mixer *mixer = snd_soc_component_get_drvdata(cmpnt);
+ unsigned int reg = mc->reg;
+ unsigned int i;
+
+ i = (reg - TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_0) /
+ TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_STRIDE;
+
+ ucontrol->value.integer.value[0] = mixer->gain_value[i];
+
+ return 0;
+}
+
+static int tegra210_mixer_apply_gain(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol,
+ bool instant_gain)
+{
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_mixer *mixer = snd_soc_component_get_drvdata(cmpnt);
+ unsigned int reg = mc->reg, id;
+ int err;
+
+ /* Save gain value for specific MIXER input */
+ id = (reg - TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_0) /
+ TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_STRIDE;
+
+ if (mixer->gain_value[id] == ucontrol->value.integer.value[0])
+ return 0;
+
+ mixer->gain_value[id] = ucontrol->value.integer.value[0];
+
+ err = tegra210_mixer_configure_gain(cmpnt, id, instant_gain);
+ if (err) {
+ dev_err(cmpnt->dev, "Failed to apply gain\n");
+ return err;
+ }
+
+ return 1;
+}
+
+static int tegra210_mixer_put_gain(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return tegra210_mixer_apply_gain(kcontrol, ucontrol, false);
+}
+
+static int tegra210_mixer_put_instant_gain(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ return tegra210_mixer_apply_gain(kcontrol, ucontrol, true);
+}
+
+static int tegra210_mixer_set_audio_cif(struct tegra210_mixer *mixer,
+ struct snd_pcm_hw_params *params,
+ unsigned int reg,
+ unsigned int id)
+{
+ unsigned 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_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(mixer->regmap,
+ reg + (id * TEGRA210_MIXER_REG_STRIDE),
+ &cif_conf);
+
+ return 0;
+}
+
+static int tegra210_mixer_in_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct tegra210_mixer *mixer = snd_soc_dai_get_drvdata(dai);
+ int err;
+
+ err = tegra210_mixer_set_audio_cif(mixer, params,
+ TEGRA210_MIXER_RX1_CIF_CTRL,
+ dai->id);
+ if (err < 0)
+ return err;
+
+ return tegra210_mixer_configure_gain(dai->component, dai->id, false);
+}
+
+static int tegra210_mixer_out_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct tegra210_mixer *mixer = snd_soc_dai_get_drvdata(dai);
+
+ return tegra210_mixer_set_audio_cif(mixer, params,
+ TEGRA210_MIXER_TX1_CIF_CTRL,
+ dai->id - TEGRA210_MIXER_RX_MAX);
+}
+
+static const struct snd_soc_dai_ops tegra210_mixer_out_dai_ops = {
+ .hw_params = tegra210_mixer_out_hw_params,
+};
+
+static const struct snd_soc_dai_ops tegra210_mixer_in_dai_ops = {
+ .hw_params = tegra210_mixer_in_hw_params,
+};
+
+#define IN_DAI(id) \
+ { \
+ .name = "MIXER-RX-CIF"#id, \
+ .playback = { \
+ .stream_name = "RX" #id "-CIF-Playback",\
+ .channels_min = 1, \
+ .channels_max = 8, \
+ .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 = 8, \
+ .rates = SNDRV_PCM_RATE_8000_192000, \
+ .formats = SNDRV_PCM_FMTBIT_S8 | \
+ SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE, \
+ }, \
+ .ops = &tegra210_mixer_in_dai_ops, \
+ }
+
+#define OUT_DAI(id) \
+ { \
+ .name = "MIXER-TX-CIF" #id, \
+ .playback = { \
+ .stream_name = "TX" #id "-CIF-Playback",\
+ .channels_min = 1, \
+ .channels_max = 8, \
+ .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 = 8, \
+ .rates = SNDRV_PCM_RATE_8000_192000, \
+ .formats = SNDRV_PCM_FMTBIT_S8 | \
+ SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE, \
+ }, \
+ .ops = &tegra210_mixer_out_dai_ops, \
+ }
+
+static struct snd_soc_dai_driver tegra210_mixer_dais[] = {
+ /* Mixer Input */
+ IN_DAI(1),
+ IN_DAI(2),
+ IN_DAI(3),
+ IN_DAI(4),
+ IN_DAI(5),
+ IN_DAI(6),
+ IN_DAI(7),
+ IN_DAI(8),
+ IN_DAI(9),
+ IN_DAI(10),
+
+ /* Mixer Output */
+ OUT_DAI(1),
+ OUT_DAI(2),
+ OUT_DAI(3),
+ OUT_DAI(4),
+ OUT_DAI(5),
+};
+
+#define ADDER_CTRL_DECL(name, reg) \
+ static const struct snd_kcontrol_new name[] = { \
+ SOC_DAPM_SINGLE("RX1", reg, 0, 1, 0), \
+ SOC_DAPM_SINGLE("RX2", reg, 1, 1, 0), \
+ SOC_DAPM_SINGLE("RX3", reg, 2, 1, 0), \
+ SOC_DAPM_SINGLE("RX4", reg, 3, 1, 0), \
+ SOC_DAPM_SINGLE("RX5", reg, 4, 1, 0), \
+ SOC_DAPM_SINGLE("RX6", reg, 5, 1, 0), \
+ SOC_DAPM_SINGLE("RX7", reg, 6, 1, 0), \
+ SOC_DAPM_SINGLE("RX8", reg, 7, 1, 0), \
+ SOC_DAPM_SINGLE("RX9", reg, 8, 1, 0), \
+ SOC_DAPM_SINGLE("RX10", reg, 9, 1, 0), \
+ }
+
+ADDER_CTRL_DECL(adder1, TEGRA210_MIXER_TX1_ADDER_CONFIG);
+ADDER_CTRL_DECL(adder2, TEGRA210_MIXER_TX2_ADDER_CONFIG);
+ADDER_CTRL_DECL(adder3, TEGRA210_MIXER_TX3_ADDER_CONFIG);
+ADDER_CTRL_DECL(adder4, TEGRA210_MIXER_TX4_ADDER_CONFIG);
+ADDER_CTRL_DECL(adder5, TEGRA210_MIXER_TX5_ADDER_CONFIG);
+
+#define GAIN_CTRL(id) \
+ SOC_SINGLE_EXT("RX" #id " Gain Volume", \
+ MIXER_GAIN_CFG_RAM_ADDR((id) - 1), 0, \
+ 0x20000, 0, tegra210_mixer_get_gain, \
+ tegra210_mixer_put_gain), \
+ SOC_SINGLE_EXT("RX" #id " Instant Gain Volume", \
+ MIXER_GAIN_CFG_RAM_ADDR((id) - 1), 0, \
+ 0x20000, 0, tegra210_mixer_get_gain, \
+ tegra210_mixer_put_instant_gain),
+
+/* Volume controls for all MIXER inputs */
+static const struct snd_kcontrol_new tegra210_mixer_gain_ctls[] = {
+ GAIN_CTRL(1)
+ GAIN_CTRL(2)
+ GAIN_CTRL(3)
+ GAIN_CTRL(4)
+ GAIN_CTRL(5)
+ GAIN_CTRL(6)
+ GAIN_CTRL(7)
+ GAIN_CTRL(8)
+ GAIN_CTRL(9)
+ GAIN_CTRL(10)
+};
+
+static const struct snd_soc_dapm_widget tegra210_mixer_widgets[] = {
+ SND_SOC_DAPM_AIF_IN("RX1", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("RX2", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("RX3", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("RX4", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("RX5", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("RX6", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("RX7", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("RX8", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("RX9", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("RX10", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_OUT("TX1", NULL, 0, TEGRA210_MIXER_TX1_ENABLE, 0, 0),
+ SND_SOC_DAPM_AIF_OUT("TX2", NULL, 0, TEGRA210_MIXER_TX2_ENABLE, 0, 0),
+ SND_SOC_DAPM_AIF_OUT("TX3", NULL, 0, TEGRA210_MIXER_TX3_ENABLE, 0, 0),
+ SND_SOC_DAPM_AIF_OUT("TX4", NULL, 0, TEGRA210_MIXER_TX4_ENABLE, 0, 0),
+ SND_SOC_DAPM_AIF_OUT("TX5", NULL, 0, TEGRA210_MIXER_TX5_ENABLE, 0, 0),
+ SND_SOC_DAPM_MIXER("Adder1", SND_SOC_NOPM, 1, 0, adder1,
+ ARRAY_SIZE(adder1)),
+ SND_SOC_DAPM_MIXER("Adder2", SND_SOC_NOPM, 1, 0, adder2,
+ ARRAY_SIZE(adder2)),
+ SND_SOC_DAPM_MIXER("Adder3", SND_SOC_NOPM, 1, 0, adder3,
+ ARRAY_SIZE(adder3)),
+ SND_SOC_DAPM_MIXER("Adder4", SND_SOC_NOPM, 1, 0, adder4,
+ ARRAY_SIZE(adder4)),
+ SND_SOC_DAPM_MIXER("Adder5", SND_SOC_NOPM, 1, 0, adder5,
+ ARRAY_SIZE(adder5)),
+};
+
+#define RX_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 }
+
+#define MIXER_RX_ROUTES(id) \
+ RX_ROUTES(id, "Playback"), \
+ RX_ROUTES(id, "Capture")
+
+#define ADDER_ROUTES(id, sname) \
+ { "Adder" #id, "RX1", "RX1" }, \
+ { "Adder" #id, "RX2", "RX2" }, \
+ { "Adder" #id, "RX3", "RX3" }, \
+ { "Adder" #id, "RX4", "RX4" }, \
+ { "Adder" #id, "RX5", "RX5" }, \
+ { "Adder" #id, "RX6", "RX6" }, \
+ { "Adder" #id, "RX7", "RX7" }, \
+ { "Adder" #id, "RX8", "RX8" }, \
+ { "Adder" #id, "RX9", "RX9" }, \
+ { "Adder" #id, "RX10", "RX10" }, \
+ { "TX" #id, NULL, "Adder" #id }, \
+ { "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 TX_ROUTES(id, sname) \
+ ADDER_ROUTES(1, sname), \
+ ADDER_ROUTES(2, sname), \
+ ADDER_ROUTES(3, sname), \
+ ADDER_ROUTES(4, sname), \
+ ADDER_ROUTES(5, sname)
+
+#define MIXER_TX_ROUTES(id) \
+ TX_ROUTES(id, "Playback"), \
+ TX_ROUTES(id, "Capture")
+
+static const struct snd_soc_dapm_route tegra210_mixer_routes[] = {
+ /* Input */
+ MIXER_RX_ROUTES(1),
+ MIXER_RX_ROUTES(2),
+ MIXER_RX_ROUTES(3),
+ MIXER_RX_ROUTES(4),
+ MIXER_RX_ROUTES(5),
+ MIXER_RX_ROUTES(6),
+ MIXER_RX_ROUTES(7),
+ MIXER_RX_ROUTES(8),
+ MIXER_RX_ROUTES(9),
+ MIXER_RX_ROUTES(10),
+ /* Output */
+ MIXER_TX_ROUTES(1),
+ MIXER_TX_ROUTES(2),
+ MIXER_TX_ROUTES(3),
+ MIXER_TX_ROUTES(4),
+ MIXER_TX_ROUTES(5),
+};
+
+static const struct snd_soc_component_driver tegra210_mixer_cmpnt = {
+ .dapm_widgets = tegra210_mixer_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(tegra210_mixer_widgets),
+ .dapm_routes = tegra210_mixer_routes,
+ .num_dapm_routes = ARRAY_SIZE(tegra210_mixer_routes),
+ .controls = tegra210_mixer_gain_ctls,
+ .num_controls = ARRAY_SIZE(tegra210_mixer_gain_ctls),
+};
+
+static bool tegra210_mixer_wr_reg(struct device *dev,
+ unsigned int reg)
+{
+ if (reg < TEGRA210_MIXER_RX_LIMIT)
+ reg = MIXER_REG_BASE(reg);
+ else if (reg < TEGRA210_MIXER_TX_LIMIT)
+ reg = MIXER_REG_BASE(reg) + TEGRA210_MIXER_TX1_ENABLE;
+
+ switch (reg) {
+ case TEGRA210_MIXER_RX1_SOFT_RESET:
+ case TEGRA210_MIXER_RX1_CIF_CTRL ... TEGRA210_MIXER_RX1_PEAK_CTRL:
+
+ case TEGRA210_MIXER_TX1_ENABLE:
+ case TEGRA210_MIXER_TX1_SOFT_RESET:
+ case TEGRA210_MIXER_TX1_INT_MASK ... TEGRA210_MIXER_TX1_ADDER_CONFIG:
+
+ case TEGRA210_MIXER_ENABLE ... TEGRA210_MIXER_CG:
+ case TEGRA210_MIXER_GAIN_CFG_RAM_CTRL ... TEGRA210_MIXER_CTRL:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool tegra210_mixer_rd_reg(struct device *dev,
+ unsigned int reg)
+{
+ if (reg < TEGRA210_MIXER_RX_LIMIT)
+ reg = MIXER_REG_BASE(reg);
+ else if (reg < TEGRA210_MIXER_TX_LIMIT)
+ reg = MIXER_REG_BASE(reg) + TEGRA210_MIXER_TX1_ENABLE;
+
+ switch (reg) {
+ case TEGRA210_MIXER_RX1_SOFT_RESET ... TEGRA210_MIXER_RX1_SAMPLE_COUNT:
+ case TEGRA210_MIXER_TX1_ENABLE ... TEGRA210_MIXER_TX1_ADDER_CONFIG:
+ case TEGRA210_MIXER_ENABLE ... TEGRA210_MIXER_CTRL:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool tegra210_mixer_volatile_reg(struct device *dev,
+ unsigned int reg)
+{
+ if (reg < TEGRA210_MIXER_RX_LIMIT)
+ reg = MIXER_REG_BASE(reg);
+ else if (reg < TEGRA210_MIXER_TX_LIMIT)
+ reg = MIXER_REG_BASE(reg) + TEGRA210_MIXER_TX1_ENABLE;
+
+ switch (reg) {
+ case TEGRA210_MIXER_RX1_SOFT_RESET:
+ case TEGRA210_MIXER_RX1_STATUS:
+
+ case TEGRA210_MIXER_TX1_SOFT_RESET:
+ case TEGRA210_MIXER_TX1_STATUS:
+ case TEGRA210_MIXER_TX1_INT_STATUS:
+ case TEGRA210_MIXER_TX1_INT_SET:
+
+ case TEGRA210_MIXER_SOFT_RESET:
+ case TEGRA210_MIXER_STATUS:
+ case TEGRA210_MIXER_INT_STATUS:
+ case TEGRA210_MIXER_GAIN_CFG_RAM_CTRL:
+ case TEGRA210_MIXER_GAIN_CFG_RAM_DATA:
+ case TEGRA210_MIXER_PEAKM_RAM_CTRL:
+ case TEGRA210_MIXER_PEAKM_RAM_DATA:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool tegra210_mixer_precious_reg(struct device *dev,
+ unsigned int reg)
+{
+ switch (reg) {
+ case TEGRA210_MIXER_GAIN_CFG_RAM_DATA:
+ case TEGRA210_MIXER_PEAKM_RAM_DATA:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config tegra210_mixer_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = TEGRA210_MIXER_CTRL,
+ .writeable_reg = tegra210_mixer_wr_reg,
+ .readable_reg = tegra210_mixer_rd_reg,
+ .volatile_reg = tegra210_mixer_volatile_reg,
+ .precious_reg = tegra210_mixer_precious_reg,
+ .reg_defaults = tegra210_mixer_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(tegra210_mixer_reg_defaults),
+ .cache_type = REGCACHE_FLAT,
+};
+
+static const struct of_device_id tegra210_mixer_of_match[] = {
+ { .compatible = "nvidia,tegra210-amixer" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, tegra210_mixer_of_match);
+
+static int tegra210_mixer_platform_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct tegra210_mixer *mixer;
+ void __iomem *regs;
+ int err, i;
+
+ mixer = devm_kzalloc(dev, sizeof(*mixer), GFP_KERNEL);
+ if (!mixer)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev, mixer);
+
+ /* Use default gain value for all MIXER inputs */
+ for (i = 0; i < TEGRA210_MIXER_RX_MAX; i++)
+ mixer->gain_value[i] = gain_params.gain_value;
+
+ regs = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(regs))
+ return PTR_ERR(regs);
+
+ mixer->regmap = devm_regmap_init_mmio(dev, regs,
+ &tegra210_mixer_regmap_config);
+ if (IS_ERR(mixer->regmap)) {
+ dev_err(dev, "regmap init failed\n");
+ return PTR_ERR(mixer->regmap);
+ }
+
+ regcache_cache_only(mixer->regmap, true);
+
+ err = devm_snd_soc_register_component(dev, &tegra210_mixer_cmpnt,
+ tegra210_mixer_dais,
+ ARRAY_SIZE(tegra210_mixer_dais));
+ if (err) {
+ dev_err(dev, "can't register MIXER component, err: %d\n", err);
+ return err;
+ }
+
+ pm_runtime_enable(dev);
+
+ return 0;
+}
+
+static void tegra210_mixer_platform_remove(struct platform_device *pdev)
+{
+ pm_runtime_disable(&pdev->dev);
+}
+
+static const struct dev_pm_ops tegra210_mixer_pm_ops = {
+ SET_RUNTIME_PM_OPS(tegra210_mixer_runtime_suspend,
+ tegra210_mixer_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
+};
+
+static struct platform_driver tegra210_mixer_driver = {
+ .driver = {
+ .name = "tegra210_mixer",
+ .of_match_table = tegra210_mixer_of_match,
+ .pm = &tegra210_mixer_pm_ops,
+ },
+ .probe = tegra210_mixer_platform_probe,
+ .remove_new = tegra210_mixer_platform_remove,
+};
+module_platform_driver(tegra210_mixer_driver);
+
+MODULE_AUTHOR("Arun Shamanna Lakshmi <aruns@nvidia.com>");
+MODULE_DESCRIPTION("Tegra210 MIXER ASoC driver");
+MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 17:03:37 +0000