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Diffstat (limited to 'sound/soc/codecs/max98396.c')
-rw-r--r--sound/soc/codecs/max98396.c281
1 files changed, 230 insertions, 51 deletions
diff --git a/sound/soc/codecs/max98396.c b/sound/soc/codecs/max98396.c
index 56eb62bb041f..364b4b7ee033 100644
--- a/sound/soc/codecs/max98396.c
+++ b/sound/soc/codecs/max98396.c
@@ -5,11 +5,18 @@
#include <linux/i2c.h>
#include <linux/module.h>
#include <sound/pcm_params.h>
+#include <linux/regulator/consumer.h>
#include <sound/soc.h>
#include <linux/gpio.h>
#include <sound/tlv.h>
#include "max98396.h"
+static const char * const max98396_core_supplies[MAX98396_NUM_CORE_SUPPLIES] = {
+ "avdd",
+ "dvdd",
+ "dvddio",
+};
+
static struct reg_default max98396_reg[] = {
{MAX98396_R2000_SW_RESET, 0x00},
{MAX98396_R2001_INT_RAW1, 0x00},
@@ -342,12 +349,15 @@ static int max98396_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
{
struct snd_soc_component *component = codec_dai->component;
struct max98396_priv *max98396 = snd_soc_component_get_drvdata(component);
- unsigned int format = 0;
+ unsigned int format_mask, format = 0;
unsigned int bclk_pol = 0;
int ret, status;
int reg;
bool update = false;
+ format_mask = MAX98396_PCM_MODE_CFG_FORMAT_MASK |
+ MAX98396_PCM_MODE_CFG_LRCLKEDGE;
+
dev_dbg(component->dev, "%s: fmt 0x%08X\n", __func__, fmt);
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
@@ -365,7 +375,8 @@ static int max98396_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
break;
default:
- dev_err(component->dev, "DAI invert mode unsupported\n");
+ dev_err(component->dev, "DAI invert mode %d unsupported\n",
+ fmt & SND_SOC_DAIFMT_INV_MASK);
return -EINVAL;
}
@@ -384,6 +395,8 @@ static int max98396_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
format |= MAX98396_PCM_FORMAT_TDM_MODE0;
break;
default:
+ dev_err(component->dev, "DAI format %d unsupported\n",
+ fmt & SND_SOC_DAIFMT_FORMAT_MASK);
return -EINVAL;
}
@@ -395,7 +408,7 @@ static int max98396_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
ret = regmap_read(max98396->regmap, MAX98396_R2041_PCM_MODE_CFG, &reg);
if (ret < 0)
return -EINVAL;
- if (format != (reg & MAX98396_PCM_BCLKEDGE_BSEL_MASK)) {
+ if (format != (reg & format_mask)) {
update = true;
} else {
ret = regmap_read(max98396->regmap,
@@ -412,8 +425,7 @@ static int max98396_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
regmap_update_bits(max98396->regmap,
MAX98396_R2041_PCM_MODE_CFG,
- MAX98396_PCM_BCLKEDGE_BSEL_MASK,
- format);
+ format_mask, format);
regmap_update_bits(max98396->regmap,
MAX98396_R2042_PCM_CLK_SETUP,
@@ -426,46 +438,68 @@ static int max98396_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
return 0;
}
-/* BCLKs per LRCLK */
-static const int bclk_sel_table[] = {
- 32, 48, 64, 96, 128, 192, 256, 384, 512, 320,
+#define MAX98396_BSEL_32 0x2
+#define MAX98396_BSEL_48 0x3
+#define MAX98396_BSEL_64 0x4
+#define MAX98396_BSEL_96 0x5
+#define MAX98396_BSEL_128 0x6
+#define MAX98396_BSEL_192 0x7
+#define MAX98396_BSEL_256 0x8
+#define MAX98396_BSEL_384 0x9
+#define MAX98396_BSEL_512 0xa
+#define MAX98396_BSEL_320 0xb
+#define MAX98396_BSEL_250 0xc
+#define MAX98396_BSEL_125 0xd
+
+/* Refer to table 5 in the datasheet */
+static const struct max98396_pcm_config {
+ int in, out, width, bsel, max_sr;
+} max98396_pcm_configs[] = {
+ { .in = 2, .out = 4, .width = 16, .bsel = MAX98396_BSEL_32, .max_sr = 192000 },
+ { .in = 2, .out = 6, .width = 24, .bsel = MAX98396_BSEL_48, .max_sr = 192000 },
+ { .in = 2, .out = 8, .width = 32, .bsel = MAX98396_BSEL_64, .max_sr = 192000 },
+ { .in = 3, .out = 15, .width = 32, .bsel = MAX98396_BSEL_125, .max_sr = 192000 },
+ { .in = 4, .out = 8, .width = 16, .bsel = MAX98396_BSEL_64, .max_sr = 192000 },
+ { .in = 4, .out = 12, .width = 24, .bsel = MAX98396_BSEL_96, .max_sr = 192000 },
+ { .in = 4, .out = 16, .width = 32, .bsel = MAX98396_BSEL_128, .max_sr = 192000 },
+ { .in = 5, .out = 15, .width = 24, .bsel = MAX98396_BSEL_125, .max_sr = 192000 },
+ { .in = 7, .out = 15, .width = 16, .bsel = MAX98396_BSEL_125, .max_sr = 192000 },
+ { .in = 2, .out = 4, .width = 16, .bsel = MAX98396_BSEL_32, .max_sr = 96000 },
+ { .in = 2, .out = 6, .width = 24, .bsel = MAX98396_BSEL_48, .max_sr = 96000 },
+ { .in = 2, .out = 8, .width = 32, .bsel = MAX98396_BSEL_64, .max_sr = 96000 },
+ { .in = 3, .out = 15, .width = 32, .bsel = MAX98396_BSEL_125, .max_sr = 96000 },
+ { .in = 4, .out = 8, .width = 16, .bsel = MAX98396_BSEL_64, .max_sr = 96000 },
+ { .in = 4, .out = 12, .width = 24, .bsel = MAX98396_BSEL_96, .max_sr = 96000 },
+ { .in = 4, .out = 16, .width = 32, .bsel = MAX98396_BSEL_128, .max_sr = 96000 },
+ { .in = 5, .out = 15, .width = 24, .bsel = MAX98396_BSEL_125, .max_sr = 96000 },
+ { .in = 7, .out = 15, .width = 16, .bsel = MAX98396_BSEL_125, .max_sr = 96000 },
+ { .in = 7, .out = 31, .width = 32, .bsel = MAX98396_BSEL_250, .max_sr = 96000 },
+ { .in = 8, .out = 16, .width = 16, .bsel = MAX98396_BSEL_128, .max_sr = 96000 },
+ { .in = 8, .out = 24, .width = 24, .bsel = MAX98396_BSEL_192, .max_sr = 96000 },
+ { .in = 8, .out = 32, .width = 32, .bsel = MAX98396_BSEL_256, .max_sr = 96000 },
+ { .in = 10, .out = 31, .width = 24, .bsel = MAX98396_BSEL_250, .max_sr = 96000 },
+ { .in = 15, .out = 31, .width = 16, .bsel = MAX98396_BSEL_250, .max_sr = 96000 },
+ { .in = 16, .out = 32, .width = 16, .bsel = MAX98396_BSEL_256, .max_sr = 96000 },
+ { .in = 7, .out = 31, .width = 32, .bsel = MAX98396_BSEL_250, .max_sr = 48000 },
+ { .in = 10, .out = 31, .width = 24, .bsel = MAX98396_BSEL_250, .max_sr = 48000 },
+ { .in = 10, .out = 40, .width = 32, .bsel = MAX98396_BSEL_320, .max_sr = 48000 },
+ { .in = 15, .out = 31, .width = 16, .bsel = MAX98396_BSEL_250, .max_sr = 48000 },
+ { .in = 16, .out = 48, .width = 24, .bsel = MAX98396_BSEL_384, .max_sr = 48000 },
+ { .in = 16, .out = 64, .width = 32, .bsel = MAX98396_BSEL_512, .max_sr = 48000 },
};
-static int max98396_get_bclk_sel(int bclk)
+static int max98396_pcm_config_index(int in_slots, int out_slots, int width)
{
int i;
- /* match BCLKs per LRCLK */
- for (i = 0; i < ARRAY_SIZE(bclk_sel_table); i++) {
- if (bclk_sel_table[i] == bclk)
- return i + 2;
- }
- return 0;
-}
-static int max98396_set_clock(struct snd_soc_component *component,
- struct snd_pcm_hw_params *params)
-{
- struct max98396_priv *max98396 = snd_soc_component_get_drvdata(component);
- /* BCLK/LRCLK ratio calculation */
- int blr_clk_ratio = params_channels(params) * max98396->ch_size;
- int value;
-
- if (!max98396->tdm_mode) {
- /* BCLK configuration */
- value = max98396_get_bclk_sel(blr_clk_ratio);
- if (!value) {
- dev_err(component->dev, "format unsupported %d\n",
- params_format(params));
- return -EINVAL;
- }
+ for (i = 0; i < ARRAY_SIZE(max98396_pcm_configs); i++) {
+ const struct max98396_pcm_config *c = &max98396_pcm_configs[i];
- regmap_update_bits(max98396->regmap,
- MAX98396_R2042_PCM_CLK_SETUP,
- MAX98396_PCM_CLK_SETUP_BSEL_MASK,
- value);
+ if (in_slots == c->in && out_slots <= c->out && width == c->width)
+ return i;
}
- return 0;
+ return -1;
}
static int max98396_dai_hw_params(struct snd_pcm_substream *substream,
@@ -476,8 +510,7 @@ static int max98396_dai_hw_params(struct snd_pcm_substream *substream,
struct max98396_priv *max98396 = snd_soc_component_get_drvdata(component);
unsigned int sampling_rate = 0;
unsigned int chan_sz = 0;
- int ret, reg;
- int status;
+ int ret, reg, status, bsel = 0;
bool update = false;
/* pcm mode configuration */
@@ -497,8 +530,6 @@ static int max98396_dai_hw_params(struct snd_pcm_substream *substream,
goto err;
}
- max98396->ch_size = snd_pcm_format_width(params_format(params));
-
dev_dbg(component->dev, "format supported %d",
params_format(params));
@@ -546,6 +577,33 @@ static int max98396_dai_hw_params(struct snd_pcm_substream *substream,
goto err;
}
+ if (max98396->tdm_mode) {
+ if (params_rate(params) > max98396->tdm_max_samplerate) {
+ dev_err(component->dev, "TDM sample rate %d too high",
+ params_rate(params));
+ goto err;
+ }
+ } else {
+ /* BCLK configuration */
+ ret = max98396_pcm_config_index(params_channels(params),
+ params_channels(params),
+ snd_pcm_format_width(params_format(params)));
+ if (ret < 0) {
+ dev_err(component->dev,
+ "no PCM config for %d channels, format %d\n",
+ params_channels(params), params_format(params));
+ goto err;
+ }
+
+ bsel = max98396_pcm_configs[ret].bsel;
+
+ if (params_rate(params) > max98396_pcm_configs[ret].max_sr) {
+ dev_err(component->dev, "sample rate %d too high",
+ params_rate(params));
+ goto err;
+ }
+ }
+
ret = regmap_read(max98396->regmap, MAX98396_R210F_GLOBAL_EN, &status);
if (ret < 0)
goto err;
@@ -591,12 +649,16 @@ static int max98396_dai_hw_params(struct snd_pcm_substream *substream,
MAX98396_IVADC_SR_MASK,
sampling_rate << MAX98396_IVADC_SR_SHIFT);
- ret = max98396_set_clock(component, params);
+ if (bsel)
+ regmap_update_bits(max98396->regmap,
+ MAX98396_R2042_PCM_CLK_SETUP,
+ MAX98396_PCM_CLK_SETUP_BSEL_MASK,
+ bsel);
if (status && update)
max98396_global_enable_onoff(max98396->regmap, true);
- return ret;
+ return 0;
err:
return -EINVAL;
@@ -621,13 +683,16 @@ static int max98396_dai_tdm_slot(struct snd_soc_dai *dai,
max98396->tdm_mode = true;
/* BCLK configuration */
- bsel = max98396_get_bclk_sel(slots * slot_width);
- if (bsel == 0) {
- dev_err(component->dev, "BCLK %d not supported\n",
- slots * slot_width);
+ ret = max98396_pcm_config_index(slots, slots, slot_width);
+ if (ret < 0) {
+ dev_err(component->dev, "no TDM config for %d slots %d bits\n",
+ slots, slot_width);
return -EINVAL;
}
+ bsel = max98396_pcm_configs[ret].bsel;
+ max98396->tdm_max_samplerate = max98396_pcm_configs[ret].max_sr;
+
/* Channel size configuration */
switch (slot_width) {
case 16:
@@ -640,7 +705,7 @@ static int max98396_dai_tdm_slot(struct snd_soc_dai *dai,
chan_sz = MAX98396_PCM_MODE_CFG_CHANSZ_32;
break;
default:
- dev_err(component->dev, "format unsupported %d\n",
+ dev_err(component->dev, "slot width %d unsupported\n",
slot_width);
return -EINVAL;
}
@@ -1329,6 +1394,12 @@ static int max98396_probe(struct snd_soc_component *component)
regmap_write(max98396->regmap,
MAX98397_R2057_PCM_RX_SRC2, 0x10);
}
+ /* Supply control */
+ regmap_update_bits(max98396->regmap,
+ MAX98396_R20A0_AMP_SUPPLY_CTL,
+ MAX98396_AMP_SUPPLY_NOVBAT,
+ (max98396->vbat == NULL) ?
+ MAX98396_AMP_SUPPLY_NOVBAT : 0);
/* Enable DC blocker */
regmap_update_bits(max98396->regmap,
MAX98396_R2092_AMP_DSP_CFG, 1, 1);
@@ -1358,6 +1429,9 @@ static int max98396_probe(struct snd_soc_component *component)
regmap_write(max98396->regmap,
MAX98396_R2045_PCM_TX_CTRL_2,
max98396->i_slot);
+ regmap_write(max98396->regmap,
+ MAX98396_R204A_PCM_TX_CTRL_7,
+ max98396->spkfb_slot);
if (max98396->v_slot < 8)
if (max98396->device_id == CODEC_TYPE_MAX98396)
@@ -1424,12 +1498,38 @@ static int max98396_suspend(struct device *dev)
regcache_cache_only(max98396->regmap, true);
regcache_mark_dirty(max98396->regmap);
+ regulator_bulk_disable(MAX98396_NUM_CORE_SUPPLIES,
+ max98396->core_supplies);
+ if (max98396->pvdd)
+ regulator_disable(max98396->pvdd);
+
+ if (max98396->vbat)
+ regulator_disable(max98396->vbat);
+
return 0;
}
static int max98396_resume(struct device *dev)
{
struct max98396_priv *max98396 = dev_get_drvdata(dev);
+ int ret;
+
+ ret = regulator_bulk_enable(MAX98396_NUM_CORE_SUPPLIES,
+ max98396->core_supplies);
+ if (ret < 0)
+ return ret;
+
+ if (max98396->pvdd) {
+ ret = regulator_enable(max98396->pvdd);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (max98396->vbat) {
+ ret = regulator_enable(max98396->vbat);
+ if (ret < 0)
+ return ret;
+ }
regcache_cache_only(max98396->regmap, false);
max98396_reset(max98396, dev);
@@ -1453,7 +1553,6 @@ static const struct snd_soc_component_driver soc_codec_dev_max98396 = {
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
- .non_legacy_dai_naming = 1,
};
static const struct snd_soc_component_driver soc_codec_dev_max98397 = {
@@ -1467,7 +1566,6 @@ static const struct snd_soc_component_driver soc_codec_dev_max98397 = {
.idle_bias_on = 1,
.use_pmdown_time = 1,
.endianness = 1,
- .non_legacy_dai_naming = 1,
};
static const struct regmap_config max98396_regmap = {
@@ -1507,17 +1605,35 @@ static void max98396_read_device_property(struct device *dev,
else
max98396->i_slot = 1;
+ if (!device_property_read_u32(dev, "adi,spkfb-slot-no", &value))
+ max98396->spkfb_slot = value & 0xF;
+ else
+ max98396->spkfb_slot = 2;
+
if (!device_property_read_u32(dev, "adi,bypass-slot-no", &value))
max98396->bypass_slot = value & 0xF;
else
max98396->bypass_slot = 0;
}
+static void max98396_core_supplies_disable(void *priv)
+{
+ struct max98396_priv *max98396 = priv;
+
+ regulator_bulk_disable(MAX98396_NUM_CORE_SUPPLIES,
+ max98396->core_supplies);
+}
+
+static void max98396_supply_disable(void *r)
+{
+ regulator_disable((struct regulator *) r);
+}
+
static int max98396_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct max98396_priv *max98396 = NULL;
- int ret, reg;
+ int i, ret, reg;
max98396 = devm_kzalloc(&i2c->dev, sizeof(*max98396), GFP_KERNEL);
@@ -1543,6 +1659,69 @@ static int max98396_i2c_probe(struct i2c_client *i2c,
return ret;
}
+ /* Obtain regulator supplies */
+ for (i = 0; i < MAX98396_NUM_CORE_SUPPLIES; i++)
+ max98396->core_supplies[i].supply = max98396_core_supplies[i];
+
+ ret = devm_regulator_bulk_get(&i2c->dev, MAX98396_NUM_CORE_SUPPLIES,
+ max98396->core_supplies);
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Failed to request core supplies: %d\n", ret);
+ return ret;
+ }
+
+ max98396->vbat = devm_regulator_get_optional(&i2c->dev, "vbat");
+ if (IS_ERR(max98396->vbat)) {
+ if (PTR_ERR(max98396->vbat) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
+ max98396->vbat = NULL;
+ }
+
+ max98396->pvdd = devm_regulator_get_optional(&i2c->dev, "pvdd");
+ if (IS_ERR(max98396->pvdd)) {
+ if (PTR_ERR(max98396->pvdd) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
+ max98396->pvdd = NULL;
+ }
+
+ ret = regulator_bulk_enable(MAX98396_NUM_CORE_SUPPLIES,
+ max98396->core_supplies);
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Unable to enable core supplies: %d", ret);
+ return ret;
+ }
+
+ ret = devm_add_action_or_reset(&i2c->dev, max98396_core_supplies_disable,
+ max98396);
+ if (ret < 0)
+ return ret;
+
+ if (max98396->pvdd) {
+ ret = regulator_enable(max98396->pvdd);
+ if (ret < 0)
+ return ret;
+
+ ret = devm_add_action_or_reset(&i2c->dev,
+ max98396_supply_disable,
+ max98396->pvdd);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (max98396->vbat) {
+ ret = regulator_enable(max98396->vbat);
+ if (ret < 0)
+ return ret;
+
+ ret = devm_add_action_or_reset(&i2c->dev,
+ max98396_supply_disable,
+ max98396->vbat);
+ if (ret < 0)
+ return ret;
+ }
+
/* update interleave mode info */
if (device_property_read_bool(&i2c->dev, "adi,interleave_mode"))
max98396->interleave_mode = true;
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-23 03:42:44 +0300