@@ -13,6 +13,9 @@ Optional properties:
- clocks: The phandle of the master clock to the CODEC
- clock-names: Should be "mclk"
+- realtek,dmic-init-delay-ms
+ Set the DMIC initial delay (ms) to wait it ready.
+
Pins on the device (for linking into audio routes) for RT5514:
* DMIC1L
new file mode 100644
@@ -0,0 +1,20 @@
+/*
+ * linux/sound/rt5514.h -- Platform data for RT5514
+ *
+ * Copyright 2016 Realtek Semiconductor Corp.
+ * Author: Oder Chiou <oder_chiou@realtek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __LINUX_SND_RT5514_H
+#define __LINUX_SND_RT5514_H
+
+struct rt5514_platform_data {
+ unsigned int dmic_init_delay;
+};
+
+#endif
+
@@ -452,6 +452,9 @@ static int rt5514_set_dmic_clk(struct snd_soc_dapm_widget *w,
RT5514_CLK_DMIC_OUT_SEL_MASK,
idx << RT5514_CLK_DMIC_OUT_SEL_SFT);
+ if (rt5514->pdata.dmic_init_delay)
+ msleep(rt5514->pdata.dmic_init_delay);
+
return idx;
}
@@ -1073,9 +1076,18 @@ static const struct of_device_id rt5514_of_match[] = {
MODULE_DEVICE_TABLE(of, rt5514_of_match);
#endif
+static int rt5514_parse_dt(struct rt5514_priv *rt5514, struct device *dev)
+{
+ device_property_read_u32(dev, "realtek,dmic-init-delay-ms",
+ &rt5514->pdata.dmic_init_delay);
+
+ return 0;
+}
+
static int rt5514_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
+ struct rt5514_platform_data *pdata = dev_get_platdata(&i2c->dev);
struct rt5514_priv *rt5514;
int ret;
unsigned int val;
@@ -1087,6 +1099,11 @@ static int rt5514_i2c_probe(struct i2c_client *i2c,
i2c_set_clientdata(i2c, rt5514);
+ if (pdata)
+ rt5514->pdata = *pdata;
+ else if (i2c->dev.of_node)
+ rt5514_parse_dt(rt5514, &i2c->dev);
+
rt5514->i2c_regmap = devm_regmap_init_i2c(i2c, &rt5514_i2c_regmap);
if (IS_ERR(rt5514->i2c_regmap)) {
ret = PTR_ERR(rt5514->i2c_regmap);
@@ -13,6 +13,7 @@
#define __RT5514_H__
#include <linux/clk.h>
+#include <sound/rt5514.h>
#define RT5514_DEVICE_ID 0x10ec5514
@@ -243,6 +244,7 @@ enum {
};
struct rt5514_priv {
+ struct rt5514_platform_data pdata;
struct snd_soc_codec *codec;
struct regmap *i2c_regmap, *regmap;
struct clk *mclk;