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path: root/drivers/regulator/da9055-regulator.c
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Diffstat (limited to 'drivers/regulator/da9055-regulator.c')
-rw-r--r--drivers/regulator/da9055-regulator.c77
1 files changed, 39 insertions, 38 deletions
diff --git a/drivers/regulator/da9055-regulator.c b/drivers/regulator/da9055-regulator.c
index 73ff5fc7d8d7..a0d3414aa79e 100644
--- a/drivers/regulator/da9055-regulator.c
+++ b/drivers/regulator/da9055-regulator.c
@@ -9,7 +9,6 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
@@ -74,7 +73,7 @@ struct da9055_regulator_info {
struct da9055_regulator {
struct da9055 *da9055;
- struct da9055_regulator_info *info;
+ const struct da9055_regulator_info *info;
struct regulator_dev *rdev;
enum gpio_select reg_rselect;
};
@@ -82,7 +81,7 @@ struct da9055_regulator {
static unsigned int da9055_buck_get_mode(struct regulator_dev *rdev)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
- struct da9055_regulator_info *info = regulator->info;
+ const struct da9055_regulator_info *info = regulator->info;
int ret, mode = 0;
ret = da9055_reg_read(regulator->da9055, info->mode.reg);
@@ -108,7 +107,7 @@ static int da9055_buck_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
- struct da9055_regulator_info *info = regulator->info;
+ const struct da9055_regulator_info *info = regulator->info;
int val = 0;
switch (mode) {
@@ -130,7 +129,7 @@ static int da9055_buck_set_mode(struct regulator_dev *rdev,
static unsigned int da9055_ldo_get_mode(struct regulator_dev *rdev)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
- struct da9055_regulator_info *info = regulator->info;
+ const struct da9055_regulator_info *info = regulator->info;
int ret;
ret = da9055_reg_read(regulator->da9055, info->volt.reg_b);
@@ -146,7 +145,7 @@ static unsigned int da9055_ldo_get_mode(struct regulator_dev *rdev)
static int da9055_ldo_set_mode(struct regulator_dev *rdev, unsigned int mode)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
- struct da9055_regulator_info *info = regulator->info;
+ const struct da9055_regulator_info *info = regulator->info;
struct da9055_volt_reg volt = info->volt;
int val = 0;
@@ -168,7 +167,7 @@ static int da9055_ldo_set_mode(struct regulator_dev *rdev, unsigned int mode)
static int da9055_regulator_get_voltage_sel(struct regulator_dev *rdev)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
- struct da9055_regulator_info *info = regulator->info;
+ const struct da9055_regulator_info *info = regulator->info;
struct da9055_volt_reg volt = info->volt;
int ret, sel;
@@ -200,7 +199,7 @@ static int da9055_regulator_set_voltage_sel(struct regulator_dev *rdev,
unsigned int selector)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
- struct da9055_regulator_info *info = regulator->info;
+ const struct da9055_regulator_info *info = regulator->info;
int ret;
/*
@@ -243,7 +242,7 @@ static int da9055_regulator_set_suspend_voltage(struct regulator_dev *rdev,
int uV)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
- struct da9055_regulator_info *info = regulator->info;
+ const struct da9055_regulator_info *info = regulator->info;
int ret;
/* Select register set B for suspend voltage ramping. */
@@ -265,7 +264,7 @@ static int da9055_regulator_set_suspend_voltage(struct regulator_dev *rdev,
static int da9055_suspend_enable(struct regulator_dev *rdev)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
- struct da9055_regulator_info *info = regulator->info;
+ const struct da9055_regulator_info *info = regulator->info;
/* Select register set B for voltage ramping. */
if (regulator->reg_rselect == NO_GPIO)
@@ -278,7 +277,7 @@ static int da9055_suspend_enable(struct regulator_dev *rdev)
static int da9055_suspend_disable(struct regulator_dev *rdev)
{
struct da9055_regulator *regulator = rdev_get_drvdata(rdev);
- struct da9055_regulator_info *info = regulator->info;
+ const struct da9055_regulator_info *info = regulator->info;
/* Diselect register set B. */
if (regulator->reg_rselect == NO_GPIO)
@@ -397,7 +396,7 @@ static const struct regulator_ops da9055_ldo_ops = {
},\
}
-static struct da9055_regulator_info da9055_regulator_info[] = {
+static const struct da9055_regulator_info da9055_regulator_info[] = {
DA9055_BUCK(BUCK1, 25, 725, 2075, 6, 9, 0xc, 2),
DA9055_BUCK(BUCK2, 25, 925, 2500, 6, 0, 3, 0),
DA9055_LDO(LDO1, 50, 900, 3300, 6, 2),
@@ -413,31 +412,35 @@ static struct da9055_regulator_info da9055_regulator_info[] = {
* GPIO can control regulator state and/or select the regulator register
* set A/B for voltage ramping.
*/
-static int da9055_gpio_init(struct da9055_regulator *regulator,
+static int da9055_gpio_init(struct device *dev,
+ struct da9055_regulator *regulator,
struct regulator_config *config,
struct da9055_pdata *pdata, int id)
{
- struct da9055_regulator_info *info = regulator->info;
+ const struct da9055_regulator_info *info = regulator->info;
+ struct gpio_desc *ren;
+ struct gpio_desc *ena;
+ struct gpio_desc *rsel;
int ret = 0;
- if (!pdata)
- return 0;
+ /* Look for "regulator-enable-gpios" GPIOs in the regulator node */
+ ren = devm_gpiod_get_optional(dev, "regulator-enable", GPIOD_IN);
+ if (IS_ERR(ren))
+ return PTR_ERR(ren);
- if (pdata->gpio_ren && pdata->gpio_ren[id]) {
- char name[18];
- int gpio_mux = pdata->gpio_ren[id];
+ if (ren) {
+ /* This GPIO is not optional at this point */
+ ena = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
+ if (IS_ERR(ena))
+ return PTR_ERR(ena);
- config->ena_gpiod = pdata->ena_gpiods[id];
+ config->ena_gpiod = ena;
/*
* GPI pin is muxed with regulator to control the
* regulator state.
*/
- sprintf(name, "DA9055 GPI %d", gpio_mux);
- ret = devm_gpio_request_one(config->dev, gpio_mux, GPIOF_DIR_IN,
- name);
- if (ret < 0)
- goto err;
+ gpiod_set_consumer_name(ren, "DA9055 ren GPI");
/*
* Let the regulator know that its state is controlled
@@ -448,24 +451,22 @@ static int da9055_gpio_init(struct da9055_regulator *regulator,
pdata->reg_ren[id]
<< DA9055_E_GPI_SHIFT);
if (ret < 0)
- goto err;
+ return ret;
}
- if (pdata->gpio_rsel && pdata->gpio_rsel[id]) {
- char name[18];
- int gpio_mux = pdata->gpio_rsel[id];
+ /* Look for "regulator-select-gpios" GPIOs in the regulator node */
+ rsel = devm_gpiod_get_optional(dev, "regulator-select", GPIOD_IN);
+ if (IS_ERR(rsel))
+ return PTR_ERR(rsel);
+ if (rsel) {
regulator->reg_rselect = pdata->reg_rsel[id];
/*
* GPI pin is muxed with regulator to select the
* regulator register set A/B for voltage ramping.
*/
- sprintf(name, "DA9055 GPI %d", gpio_mux);
- ret = devm_gpio_request_one(config->dev, gpio_mux, GPIOF_DIR_IN,
- name);
- if (ret < 0)
- goto err;
+ gpiod_set_consumer_name(rsel, "DA9055 rsel GPI");
/*
* Let the regulator know that its register set A/B
@@ -477,7 +478,6 @@ static int da9055_gpio_init(struct da9055_regulator *regulator,
<< DA9055_V_GPI_SHIFT);
}
-err:
return ret;
}
@@ -491,9 +491,9 @@ static irqreturn_t da9055_ldo5_6_oc_irq(int irq, void *data)
return IRQ_HANDLED;
}
-static inline struct da9055_regulator_info *find_regulator_info(int id)
+static inline const struct da9055_regulator_info *find_regulator_info(int id)
{
- struct da9055_regulator_info *info;
+ const struct da9055_regulator_info *info;
int i;
for (i = 0; i < ARRAY_SIZE(da9055_regulator_info); i++) {
@@ -532,7 +532,7 @@ static int da9055_regulator_probe(struct platform_device *pdev)
if (pdata)
config.init_data = pdata->regulators[pdev->id];
- ret = da9055_gpio_init(regulator, &config, pdata, pdev->id);
+ ret = da9055_gpio_init(&pdev->dev, regulator, &config, pdata, pdev->id);
if (ret < 0)
return ret;
@@ -576,6 +576,7 @@ static struct platform_driver da9055_regulator_driver = {
.probe = da9055_regulator_probe,
.driver = {
.name = "da9055-regulator",
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
generated by cgit (git 2.34.1) at 2025-12-25 14:40:58 +0000