kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

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

Browse source 
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: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Akshu Agrawal 2018-07-25 17:00:59 +08:00 committed by Mark Brown
parent fe65324e3f
commit c183fec10a
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
2 changed files with 44 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
sound/soc/amd/Kconfig
View file

@ -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.

43
sound/soc/amd/acp-da7219-max98357a.c
View file

@ -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);