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regulator: max8952: Pass descriptor instead of GPIO number 

Instead of passing a global GPIO number for the enable GPIO, pass
a descriptor looked up with the standard devm_gpiod_get_optional()
call.

All users of this regulator use device tree so the transition is
pretty smooth.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Linus Walleij 2018-05-14 10:06:29 +02:00 committed by Mark Brown
parent 2468f0d515
commit d7a261c2d1
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 13 additions and 6 deletions
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18
drivers/regulator/max8952.c
View File

@ -27,6 +27,7 @@
#include <linux/regulator/driver.h>
#include <linux/regulator/max8952.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
@ -148,7 +149,6 @@ static struct max8952_platform_data *max8952_parse_dt(struct device *dev)
pd->gpio_vid0 = of_get_named_gpio(np, "max8952,vid-gpios", 0);
pd->gpio_vid1 = of_get_named_gpio(np, "max8952,vid-gpios", 1);
pd->gpio_en = of_get_named_gpio(np, "max8952,en-gpio", 0);
if (of_property_read_u32(np, "max8952,default-mode", &pd->default_mode))
dev_warn(dev, "Default mode not specified, assuming 0\n");
@ -197,6 +197,8 @@ static int max8952_pmic_probe(struct i2c_client *client,
struct regulator_config config = { };
struct max8952_data *max8952;
struct regulator_dev *rdev;
struct gpio_desc *gpiod;
enum gpiod_flags gflags;
int ret = 0, err = 0;
@ -224,11 +226,17 @@ static int max8952_pmic_probe(struct i2c_client *client,
config.driver_data = max8952;
config.of_node = client->dev.of_node;
config.ena_gpio = pdata->gpio_en;
if (client->dev.of_node)
config.ena_gpio_initialized = true;
if (pdata->reg_data->constraints.boot_on)
config.ena_gpio_flags |= GPIOF_OUT_INIT_HIGH;
gflags = GPIOD_OUT_HIGH;
else
gflags = GPIOD_OUT_LOW;
gpiod = devm_gpiod_get_optional(&client->dev,
"max8952,en",
gflags);
if (IS_ERR(gpiod))
return PTR_ERR(gpiod);
if (gpiod)
config.ena_gpiod = gpiod;
rdev = devm_regulator_register(&client->dev, &regulator, &config);
if (IS_ERR(rdev)) {

1
include/linux/regulator/max8952.h
View File

@ -120,7 +120,6 @@ enum {
struct max8952_platform_data {
int gpio_vid0;
int gpio_vid1;
int gpio_en;
u32 default_mode;
u32 dvs_mode[MAX8952_NUM_DVS_MODE]; /* MAX8952_DVS_MODEx_XXXXmV */