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Diffstat (limited to 'sound/soc/codecs/rt9120.c')
-rw-r--r--sound/soc/codecs/rt9120.c114
1 files changed, 107 insertions, 7 deletions
diff --git a/sound/soc/codecs/rt9120.c b/sound/soc/codecs/rt9120.c
index 6e0d7cf0c8c9..da495bdc8415 100644
--- a/sound/soc/codecs/rt9120.c
+++ b/sound/soc/codecs/rt9120.c
@@ -7,6 +7,7 @@
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <sound/pcm.h>
@@ -75,6 +76,7 @@ enum {
struct rt9120_data {
struct device *dev;
struct regmap *regmap;
+ struct gpio_desc *pwdnn_gpio;
int chip_idx;
};
@@ -160,6 +162,8 @@ static int rt9120_codec_probe(struct snd_soc_component *comp)
snd_soc_component_init_regmap(comp, data->regmap);
+ pm_runtime_get_sync(comp->dev);
+
/* Internal setting */
if (data->chip_idx == CHIP_IDX_RT9120S) {
snd_soc_component_write(comp, RT9120_REG_INTERCFG, 0xde);
@@ -167,6 +171,9 @@ static int rt9120_codec_probe(struct snd_soc_component *comp)
} else
snd_soc_component_write(comp, RT9120_REG_INTERNAL0, 0x04);
+ pm_runtime_mark_last_busy(comp->dev);
+ pm_runtime_put(comp->dev);
+
return 0;
}
@@ -178,6 +185,7 @@ static const struct snd_soc_component_driver rt9120_component_driver = {
.num_dapm_widgets = ARRAY_SIZE(rt9120_dapm_widgets),
.dapm_routes = rt9120_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(rt9120_dapm_routes),
+ .endianness = 1,
};
static int rt9120_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
@@ -337,6 +345,18 @@ static const struct regmap_access_table rt9120_wr_table = {
.n_yes_ranges = ARRAY_SIZE(rt9120_wr_yes_ranges),
};
+static bool rt9120_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case 0x00 ... 0x01:
+ case 0x10:
+ case 0x30 ... 0x40:
+ return true;
+ default:
+ return false;
+ }
+}
+
static int rt9120_get_reg_size(unsigned int reg)
{
switch (reg) {
@@ -371,7 +391,7 @@ static int rt9120_reg_read(void *context, unsigned int reg, unsigned int *val)
*val = be32_to_cpup((__be32 *)raw);
break;
case 3:
- *val = raw[0] << 16 | raw[1] << 8 | raw[0];
+ *val = raw[0] << 16 | raw[1] << 8 | raw[2];
break;
case 2:
*val = be16_to_cpup((__be16 *)raw);
@@ -396,14 +416,49 @@ static int rt9120_reg_write(void *context, unsigned int reg, unsigned int val)
return i2c_smbus_write_i2c_block_data(i2c, reg, size, rawp + offs);
}
+static const struct reg_default rt9120_reg_defaults[] = {
+ { .reg = 0x02, .def = 0x02 },
+ { .reg = 0x03, .def = 0xf2 },
+ { .reg = 0x04, .def = 0x01 },
+ { .reg = 0x05, .def = 0xc0 },
+ { .reg = 0x06, .def = 0x28 },
+ { .reg = 0x07, .def = 0x04 },
+ { .reg = 0x08, .def = 0xff },
+ { .reg = 0x09, .def = 0x01 },
+ { .reg = 0x0a, .def = 0x01 },
+ { .reg = 0x0b, .def = 0x00 },
+ { .reg = 0x0c, .def = 0x04 },
+ { .reg = 0x11, .def = 0x30 },
+ { .reg = 0x12, .def = 0x08 },
+ { .reg = 0x13, .def = 0x12 },
+ { .reg = 0x14, .def = 0x09 },
+ { .reg = 0x15, .def = 0x00 },
+ { .reg = 0x20, .def = 0x7ff },
+ { .reg = 0x21, .def = 0x180 },
+ { .reg = 0x22, .def = 0x180 },
+ { .reg = 0x23, .def = 0x00 },
+ { .reg = 0x24, .def = 0x80 },
+ { .reg = 0x25, .def = 0x180 },
+ { .reg = 0x26, .def = 0x640 },
+ { .reg = 0x27, .def = 0x180 },
+ { .reg = 0x63, .def = 0x5e },
+ { .reg = 0x65, .def = 0x66 },
+ { .reg = 0x6c, .def = 0xe0 },
+ { .reg = 0xf8, .def = 0x44 },
+};
+
static const struct regmap_config rt9120_regmap_config = {
.reg_bits = 8,
.val_bits = 32,
.max_register = RT9120_REG_DIGCFG,
+ .reg_defaults = rt9120_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(rt9120_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
.reg_read = rt9120_reg_read,
.reg_write = rt9120_reg_write,
+ .volatile_reg = rt9120_volatile_reg,
.wr_table = &rt9120_wr_table,
.rd_table = &rt9120_rd_table,
};
@@ -449,7 +504,6 @@ static int rt9120_do_register_reset(struct rt9120_data *data)
static int rt9120_probe(struct i2c_client *i2c)
{
struct rt9120_data *data;
- struct gpio_desc *pwdnn_gpio;
struct regulator *dvdd_supply;
int dvdd_supply_volt, ret;
@@ -460,12 +514,12 @@ static int rt9120_probe(struct i2c_client *i2c)
data->dev = &i2c->dev;
i2c_set_clientdata(i2c, data);
- pwdnn_gpio = devm_gpiod_get_optional(&i2c->dev, "pwdnn",
- GPIOD_OUT_HIGH);
- if (IS_ERR(pwdnn_gpio)) {
+ data->pwdnn_gpio = devm_gpiod_get_optional(&i2c->dev, "pwdnn",
+ GPIOD_OUT_HIGH);
+ if (IS_ERR(data->pwdnn_gpio)) {
dev_err(&i2c->dev, "Failed to initialize 'pwdnn' gpio\n");
- return PTR_ERR(pwdnn_gpio);
- } else if (pwdnn_gpio) {
+ return PTR_ERR(data->pwdnn_gpio);
+ } else if (data->pwdnn_gpio) {
dev_dbg(&i2c->dev, "'pwdnn' from low to high, wait chip on\n");
msleep(RT9120_CHIPON_WAITMS);
}
@@ -507,11 +561,55 @@ static int rt9120_probe(struct i2c_client *i2c)
}
}
+ pm_runtime_set_autosuspend_delay(&i2c->dev, 1000);
+ pm_runtime_use_autosuspend(&i2c->dev);
+ pm_runtime_set_active(&i2c->dev);
+ pm_runtime_mark_last_busy(&i2c->dev);
+ pm_runtime_enable(&i2c->dev);
+
return devm_snd_soc_register_component(&i2c->dev,
&rt9120_component_driver,
&rt9120_dai, 1);
}
+static int rt9120_remove(struct i2c_client *i2c)
+{
+ pm_runtime_disable(&i2c->dev);
+ pm_runtime_set_suspended(&i2c->dev);
+ return 0;
+}
+
+static int __maybe_unused rt9120_runtime_suspend(struct device *dev)
+{
+ struct rt9120_data *data = dev_get_drvdata(dev);
+
+ if (data->pwdnn_gpio) {
+ regcache_cache_only(data->regmap, true);
+ regcache_mark_dirty(data->regmap);
+ gpiod_set_value(data->pwdnn_gpio, 0);
+ }
+
+ return 0;
+}
+
+static int __maybe_unused rt9120_runtime_resume(struct device *dev)
+{
+ struct rt9120_data *data = dev_get_drvdata(dev);
+
+ if (data->pwdnn_gpio) {
+ gpiod_set_value(data->pwdnn_gpio, 1);
+ msleep(RT9120_CHIPON_WAITMS);
+ regcache_cache_only(data->regmap, false);
+ regcache_sync(data->regmap);
+ }
+
+ return 0;
+}
+
+static const struct dev_pm_ops rt9120_pm_ops = {
+ SET_RUNTIME_PM_OPS(rt9120_runtime_suspend, rt9120_runtime_resume, NULL)
+};
+
static const struct of_device_id __maybe_unused rt9120_device_table[] = {
{ .compatible = "richtek,rt9120", },
{ }
@@ -522,8 +620,10 @@ static struct i2c_driver rt9120_driver = {
.driver = {
.name = "rt9120",
.of_match_table = rt9120_device_table,
+ .pm = &rt9120_pm_ops,
},
.probe_new = rt9120_probe,
+ .remove = rt9120_remove,
};
module_i2c_driver(rt9120_driver);