From: Jeff Chang <jeff_chang@xxxxxxxxxxx>
1. add parsing register initial table via device tree.
2. add applying initial register value function at component driver.
Signed-off-by: Jeff Chang <jeff_chang@xxxxxxxxxxx>
---
Documentation/devicetree/bindings/sound/mt6660.txt | 53 ++++++++++
sound/soc/codecs/mt6660.c | 114 ++++++++++++++++++++-
2 files changed, 164 insertions(+), 3 deletions(-)
create mode 100644 Documentation/devicetree/bindings/sound/mt6660.txt
Following Mr. Mark's Suggestion, I create another patch for applying our chip INIT SETTING.
diff --git a/Documentation/devicetree/bindings/sound/mt6660.txt b/Documentation/devicetree/bindings/sound/mt6660.txt
new file mode 100644
index 0000000..2a1736b
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/mt6660.txt
@@ -0,0 +1,53 @@
+MT6660 MediaTek Speaker Amplifier
+
+This device supports I2C mode only.
+
+Required properties:
+
+ - compatible : "mediatek,mt6660"
+
+ - reg : The I2C slave address
+
+Optional properties:
+
+ - rt,init_setting_num : The initial register setting element number.
+
+ - rt,init_setting_addr : the addreses array for INIT Setting table.
+
+ - rt,init_setting_mask : the mask array for INIT Setting table.
+
+ - rt,init_setting_val : the value array for INIT Setting table.
+
+Example:
+
+ mt6660@34 {
+ status = "ok";
+ compatible = "mediatek,mt6660";
+ reg = <0x34>;
+ rt,init_setting_num = <26>;
+ rt,init_setting_addr =
+ <0x20 0x30 0x50 0xB1
+ 0xD3 0xE0 0x98 0xB9
+ 0xB7 0xB6 0x6B 0x07
+ 0xBB 0x69 0xBD 0x70
+ 0x7C 0x46 0x1A 0x1B
+ 0x51 0xA2 0x33 0x4C
+ 0x15 0x68>;
+ rt,init_setting_mask =
+ <0x80 0x01 0x1c 0x0c
+ 0x03 0x01 0x44 0xff
+ 0x7777 0x07 0xe0 0xff
+ 0xff 0xff 0xffff 0xff
+ 0xff 0xff 0xffffffff 0xffffffff
+ 0xff 0xff 0xffff 0xffff
+ 0x1800 0x1f>;
+ rt,init_setting_val =
+ <0x00 0x00 0x04 0x00
+ 0x03 0x00 0x04 0x82
+ 0x7273 0x03 0x20 0x70
+ 0x20 0x40 0x17f8 0x15
+ 0x00 0x1d 0x7fdb7ffe 0x7fdb7ffe
+ 0x58 0xce 0x7fff 0x0116
+ 0x0800 0x07>;
+ };
+
diff --git a/sound/soc/codecs/mt6660.c b/sound/soc/codecs/mt6660.c
index a36c416..5df2780 100644
--- a/sound/soc/codecs/mt6660.c
+++ b/sound/soc/codecs/mt6660.c
@@ -9,7 +9,6 @@
#include <linux/i2c.h>
#include <linux/pm_runtime.h>
#include <linux/delay.h>
-#include <linux/debugfs.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include <sound/pcm_params.h>
@@ -225,14 +224,48 @@ static int _mt6660_chip_power_on(struct mt6660_chip *chip, int on_off)
0x01, on_off ? 0x00 : 0x01);
}
+static int mt6660_apply_plat_data(struct mt6660_chip *chip,
+ struct snd_soc_component *component)
+{
+ size_t i;
+ int num = chip->plat_data.init_setting_num;
+ int ret;
+
+ ret = _mt6660_chip_power_on(chip, 1);
+ if (ret < 0) {
+ dev_err(chip->dev, "%s power on failed\n", __func__);
+ return ret;
+ }
+
+ for (i = 0; i < num; i++) {
+ ret = snd_soc_component_update_bits(component,
+ chip->plat_data.init_setting_addr[i],
+ chip->plat_data.init_setting_mask[i],
+ chip->plat_data.init_setting_val[i]);
+ if (ret < 0)
+ return ret;
+ }
+ ret = _mt6660_chip_power_on(chip, 0);
+ if (ret < 0) {
+ dev_err(chip->dev, "%s power on failed\n", __func__);
+ return ret;
+ }
+ return 0;
+}
+
static int mt6660_component_probe(struct snd_soc_component *component)
{
struct mt6660_chip *chip = snd_soc_component_get_drvdata(component);
+ int ret;
dev_dbg(component->dev, "%s\n", __func__);
snd_soc_component_init_regmap(component, chip->regmap);
- return 0;
+ ret = mt6660_apply_plat_data(chip, component);
+ if (ret < 0)
+ dev_err(chip->dev, "mt6660 apply plat data failed\n");
+
+ return ret;
}
static void mt6660_component_remove(struct snd_soc_component *component)
@@ -386,6 +419,75 @@ static int _mt6660_read_chip_revision(struct mt6660_chip *chip)
return 0;
}
+static int mt6660_parse_dt(struct mt6660_chip *chip, struct device *dev)
+{
+ struct device_node *np = dev->of_node;
+ u32 val;
+ size_t i;
+
+ if (!np) {
+ dev_err(dev, "no device node\n");
+ return -EINVAL;
+ }
+
+ if (of_property_read_u32(np, "rt,init_setting_num", &val)) {
+ dev_err(dev, "no init setting\n");
+ chip->plat_data.init_setting_num = 0;
+ } else {
+ chip->plat_data.init_setting_num = val;
+ }
+
+ if (chip->plat_data.init_setting_num) {
+ chip->plat_data.init_setting_addr =
+ devm_kzalloc(dev, sizeof(u32) *
+ chip->plat_data.init_setting_num, GFP_KERNEL);
+ if (!chip->plat_data.init_setting_addr) {
+ dev_err(dev, "%s addr memory alloc failed\n", __func__);
+ return -ENOMEM;
+ }
+ chip->plat_data.init_setting_mask =
+ devm_kzalloc(dev, sizeof(u32) *
+ chip->plat_data.init_setting_num, GFP_KERNEL);
+ if (!chip->plat_data.init_setting_mask) {
+ dev_err(dev, "%s mask memory alloc failed\n", __func__);
+ return -ENOMEM;
+ }
+ chip->plat_data.init_setting_val =
+ devm_kzalloc(dev, sizeof(u32) *
+ chip->plat_data.init_setting_num, GFP_KERNEL);
+ if (!chip->plat_data.init_setting_val) {
+ dev_err(dev, "%s val memory alloc failed\n", __func__);
+ return -ENOMEM;
+ }
+
+ if (of_property_read_u32_array(np, "rt,init_setting_addr",
+ chip->plat_data.init_setting_addr,
+ chip->plat_data.init_setting_num)) {
+ dev_err(dev, "no init setting addr\n");
+ }
+ if (of_property_read_u32_array(np, "rt,init_setting_mask",
+ chip->plat_data.init_setting_mask,
+ chip->plat_data.init_setting_num)) {
+ dev_err(dev, "no init setting mask\n");
+ }
+ if (of_property_read_u32_array(np, "rt,init_setting_val",
+ chip->plat_data.init_setting_val,
+ chip->plat_data.init_setting_num)) {
+ dev_err(dev, "no init setting val\n");
+ }
+ }
+
+ dev_dbg(dev, "%s, init stting table, num = %d\n", __func__,
+ chip->plat_data.init_setting_num);
+ for (i = 0; i < chip->plat_data.init_setting_num; i++) {
+ dev_dbg(dev, "0x%02x, 0x%08x, 0x%08x\n",
+ chip->plat_data.init_setting_addr[i],
+ chip->plat_data.init_setting_mask[i],
+ chip->plat_data.init_setting_val[i]);
+ }
+ return 0;
+}
+
static int mt6660_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -401,6 +503,12 @@ static int mt6660_i2c_probe(struct i2c_client *client,
mutex_init(&chip->io_lock);
i2c_set_clientdata(client, chip);
+ ret = mt6660_parse_dt(chip, &client->dev);
+ if (ret < 0) {
+ dev_err(&client->dev, "parsing dts failed\n");
+ return ret;
+ }
+
chip->regmap = devm_regmap_init(&client->dev,
NULL, chip, &mt6660_regmap_config);
if (IS_ERR(chip->regmap)) {
@@ -506,4 +614,4 @@ module_i2c_driver(mt6660_i2c_driver);
MODULE_AUTHOR("Jeff Chang <jeff_chang@xxxxxxxxxxx>");
MODULE_DESCRIPTION("MT6660 SPKAMP Driver");
MODULE_LICENSE("GPL");
-MODULE_VERSION("1.0.7_G");
+MODULE_VERSION("1.0.8_G");
--
2.7.4
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