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Unverified Commit c183fec1 authored by Akshu Agrawal's avatar Akshu Agrawal Committed by Mark Brown
Browse files

ASoC: AMD: Add a fix voltage regulator for DA7219 and ADAU7002 



DA7219 for our platform need to be configured for 1.8V.
Hence, we add a volatge regulator with supplies
of 1.8V in the machine driver.

Signed-off-by: default avatarAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: default avatarAkshu Agrawal <akshu.agrawal@amd.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent fe65324e

sound/soc/amd/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ config SND_SOC_AMD_CZ_DA7219MX98357_MACH 
	select SND_SOC_DA7219

	select SND_SOC_MAX98357A

	select SND_SOC_ADAU7002

	select REGULATOR

	depends on SND_SOC_AMD_ACP && I2C

	help

	 This option enables machine driver for DA7219 and MAX9835.

sound/soc/amd/acp-da7219-max98357a.c

+43 −0
Original line number Diff line number Diff line
@@ -32,6 +32,8 @@ 
#include <linux/clk.h>

#include <linux/gpio.h>

#include <linux/module.h>

#include <linux/regulator/machine.h>

#include <linux/regulator/driver.h>

#include <linux/i2c.h>

#include <linux/input.h>

#include <linux/acpi.h>
@@ -320,11 +322,52 @@ static struct snd_soc_card cz_card = { 
	.num_controls = ARRAY_SIZE(cz_mc_controls),

};



static struct regulator_consumer_supply acp_da7219_supplies[] = {

	REGULATOR_SUPPLY("VDD", "i2c-DLGS7219:00"),

	REGULATOR_SUPPLY("VDDMIC", "i2c-DLGS7219:00"),

	REGULATOR_SUPPLY("VDDIO", "i2c-DLGS7219:00"),

	REGULATOR_SUPPLY("IOVDD", "ADAU7002:00"),

};



static struct regulator_init_data acp_da7219_data = {

	.constraints = {

		.always_on = 1,

	},

	.num_consumer_supplies = ARRAY_SIZE(acp_da7219_supplies),

	.consumer_supplies = acp_da7219_supplies,

};



static struct regulator_config acp_da7219_cfg = {

	.init_data = &acp_da7219_data,

};



static struct regulator_ops acp_da7219_ops = {

};



static struct regulator_desc acp_da7219_desc = {

	.name = "reg-fixed-1.8V",

	.type = REGULATOR_VOLTAGE,

	.owner = THIS_MODULE,

	.ops = &acp_da7219_ops,

	.fixed_uV = 1800000, /* 1.8V */

	.n_voltages = 1,

};



static int cz_probe(struct platform_device *pdev)

{

	int ret;

	struct snd_soc_card *card;

	struct acp_platform_info *machine;

	struct regulator_dev *rdev;



	acp_da7219_cfg.dev = &pdev->dev;

	rdev = devm_regulator_register(&pdev->dev, &acp_da7219_desc,

				       &acp_da7219_cfg);

	if (IS_ERR(rdev)) {

		dev_err(&pdev->dev, "Failed to register regulator: %d\n",

			ret);

		return -EINVAL;

	}



	machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),

			       GFP_KERNEL);