ASoC: rt1015: add delay to fix pop noise from speaker (93bd813c) · Commits · 戴 / test

Documentation/devicetree/bindings/sound/rt1015.txt

+6 −0

Original line number	Diff line number	Diff line
		@@ -8,10 +8,16 @@ Required properties:

		- reg : The I2C address of the device.

		Optional properties:

		- realtek,power-up-delay-ms
		Set a delay time for flush work to be completed,
		this value is adjustable depending on platform.

		Example:

		rt1015: codec@28 {
		compatible = "realtek,rt1015";
		reg = <0x28>;
		realtek,power-up-delay-ms = <50>;
		};

0 → 100644

+15 −0

Original line number	Diff line number	Diff line
		/* SPDX-License-Identifier: GPL-2.0-only */
		/*
		* linux/sound/rt1015.h -- Platform data for RT1015
		*
		* Copyright 2020 Realtek Microelectronics
		*/

		#ifndef __LINUX_SND_RT1015_H
		#define __LINUX_SND_RT1015_H

		struct rt1015_platform_data {
		unsigned int power_up_delay_ms;
		};

		#endif

+20 −0

Original line number	Diff line number	Diff line
		@@ -27,10 +27,15 @@
		#include <sound/soc-dapm.h>
		#include <sound/soc.h>
		#include <sound/tlv.h>
		#include <sound/rt1015.h>

		#include "rl6231.h"
		#include "rt1015.h"

		static const struct rt1015_platform_data i2s_default_platform_data = {
		.power_up_delay_ms = 50,
		};

		static const struct reg_default rt1015_reg[] = {
		{ 0x0000, 0x0000 },
		{ 0x0004, 0xa000 },
		@@ -650,6 +655,7 @@ static int rt1015_amp_drv_event(struct snd_soc_dapm_widget *w,
		case SND_SOC_DAPM_POST_PMU:
		if (rt1015->hw_config == RT1015_HW_28)
		schedule_delayed_work(&rt1015->flush_work, msecs_to_jiffies(10));
		msleep(rt1015->pdata.power_up_delay_ms);
		break;
		default:
		break;
		@@ -1067,9 +1073,16 @@ static struct acpi_device_id rt1015_acpi_match[] = {
		MODULE_DEVICE_TABLE(acpi, rt1015_acpi_match);
		#endif

		static void rt1015_parse_dt(struct rt1015_priv rt1015, struct device dev)
		{
		device_property_read_u32(dev, "realtek,power-up-delay-ms",
		&rt1015->pdata.power_up_delay_ms);
		}

		static int rt1015_i2c_probe(struct i2c_client *i2c,
		const struct i2c_device_id *id)
		{
		struct rt1015_platform_data *pdata = dev_get_platdata(&i2c->dev);
		struct rt1015_priv *rt1015;
		int ret;
		unsigned int val;
		@@ -1081,6 +1094,13 @@ static int rt1015_i2c_probe(struct i2c_client *i2c,

		i2c_set_clientdata(i2c, rt1015);

		rt1015->pdata = i2s_default_platform_data;

		if (pdata)
		rt1015->pdata = *pdata;
		else
		rt1015_parse_dt(rt1015, &i2c->dev);

		rt1015->regmap = devm_regmap_init_i2c(i2c, &rt1015_regmap);
		if (IS_ERR(rt1015->regmap)) {
		ret = PTR_ERR(rt1015->regmap);

+2 −0

Original line number	Diff line number	Diff line
		@@ -12,6 +12,7 @@

		#ifndef __RT1015_H__
		#define __RT1015_H__
		#include <sound/rt1015.h>

		#define RT1015_DEVICE_ID_VAL 0x1011
		#define RT1015_DEVICE_ID_VAL2 0x1015
		@@ -380,6 +381,7 @@ enum {

		struct rt1015_priv {
		struct snd_soc_component *component;
		struct rt1015_platform_data pdata;
		struct regmap *regmap;
		int sysclk;
		int sysclk_src;