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path: root/drivers/regulator/tps62360-regulator.c
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Diffstat (limited to 'drivers/regulator/tps62360-regulator.c')
-rw-r--r--drivers/regulator/tps62360-regulator.c98
1 files changed, 36 insertions, 62 deletions
diff --git a/drivers/regulator/tps62360-regulator.c b/drivers/regulator/tps62360-regulator.c
index f6a6d36a6533..be6a6702cbfa 100644
--- a/drivers/regulator/tps62360-regulator.c
+++ b/drivers/regulator/tps62360-regulator.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* tps62360.c -- TI tps62360
*
@@ -6,20 +7,6 @@
* Copyright (c) 2012, NVIDIA Corporation.
*
* Author: Laxman Dewangan <ldewangan@nvidia.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation version 2.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
- * whether express or implied; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- * 02111-1307, USA
*/
#include <linux/kernel.h>
@@ -28,13 +15,12 @@
#include <linux/err.h>
#include <linux/of.h>
#include <linux/of_device.h>
-#include <linux/of_gpio.h>
#include <linux/regulator/of_regulator.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/tps62360.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/regmap.h>
@@ -65,8 +51,8 @@ struct tps62360_chip {
struct regulator_desc desc;
struct regulator_dev *rdev;
struct regmap *regmap;
- int vsel0_gpio;
- int vsel1_gpio;
+ struct gpio_desc *vsel0_gpio;
+ struct gpio_desc *vsel1_gpio;
u8 voltage_reg_mask;
bool en_internal_pulldn;
bool en_discharge;
@@ -165,8 +151,8 @@ static int tps62360_dcdc_set_voltage_sel(struct regulator_dev *dev,
/* Select proper VSET register vio gpios */
if (tps->valid_gpios) {
- gpio_set_value_cansleep(tps->vsel0_gpio, new_vset_id & 0x1);
- gpio_set_value_cansleep(tps->vsel1_gpio,
+ gpiod_set_value_cansleep(tps->vsel0_gpio, new_vset_id & 0x1);
+ gpiod_set_value_cansleep(tps->vsel1_gpio,
(new_vset_id >> 1) & 0x1);
}
return 0;
@@ -233,7 +219,7 @@ static unsigned int tps62360_get_mode(struct regulator_dev *rdev)
REGULATOR_MODE_FAST : REGULATOR_MODE_NORMAL;
}
-static struct regulator_ops tps62360_dcdc_ops = {
+static const struct regulator_ops tps62360_dcdc_ops = {
.get_voltage_sel = tps62360_dcdc_get_voltage_sel,
.set_voltage_sel = tps62360_dcdc_set_voltage_sel,
.list_voltage = regulator_list_voltage_linear,
@@ -289,7 +275,7 @@ static const struct regmap_config tps62360_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = REG_CHIPID,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
};
static struct tps62360_regulator_platform_data *
@@ -310,20 +296,10 @@ static struct tps62360_regulator_platform_data *
return NULL;
}
- pdata->vsel0_gpio = of_get_named_gpio(np, "vsel0-gpio", 0);
- pdata->vsel1_gpio = of_get_named_gpio(np, "vsel1-gpio", 0);
-
- if (of_find_property(np, "ti,vsel0-state-high", NULL))
- pdata->vsel0_def_state = 1;
-
- if (of_find_property(np, "ti,vsel1-state-high", NULL))
- pdata->vsel1_def_state = 1;
-
- if (of_find_property(np, "ti,enable-pull-down", NULL))
- pdata->en_internal_pulldn = true;
-
- if (of_find_property(np, "ti,enable-vout-discharge", NULL))
- pdata->en_discharge = true;
+ pdata->vsel0_def_state = of_property_read_bool(np, "ti,vsel0-state-high");
+ pdata->vsel1_def_state = of_property_read_bool(np, "ti,vsel1-state-high");
+ pdata->en_internal_pulldn = of_property_read_bool(np, "ti,enable-pull-down");
+ pdata->en_discharge = of_property_read_bool(np, "ti,enable-vout-discharge");
return pdata;
}
@@ -339,9 +315,9 @@ static const struct of_device_id tps62360_of_match[] = {
MODULE_DEVICE_TABLE(of, tps62360_of_match);
#endif
-static int tps62360_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int tps62360_probe(struct i2c_client *client)
{
+ const struct i2c_device_id *id = i2c_client_get_device_id(client);
struct regulator_config config = { };
struct tps62360_regulator_platform_data *pdata;
struct regulator_dev *rdev;
@@ -349,6 +325,7 @@ static int tps62360_probe(struct i2c_client *client,
int ret;
int i;
int chip_id;
+ int gpio_flags;
pdata = dev_get_platdata(&client->dev);
@@ -390,8 +367,6 @@ static int tps62360_probe(struct i2c_client *client,
tps->en_discharge = pdata->en_discharge;
tps->en_internal_pulldn = pdata->en_internal_pulldn;
- tps->vsel0_gpio = pdata->vsel0_gpio;
- tps->vsel1_gpio = pdata->vsel1_gpio;
tps->dev = &client->dev;
switch (chip_id) {
@@ -426,29 +401,27 @@ static int tps62360_probe(struct i2c_client *client,
tps->lru_index[0] = tps->curr_vset_id;
tps->valid_gpios = false;
- if (gpio_is_valid(tps->vsel0_gpio) && gpio_is_valid(tps->vsel1_gpio)) {
- int gpio_flags;
- gpio_flags = (pdata->vsel0_def_state) ?
- GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW;
- ret = devm_gpio_request_one(&client->dev, tps->vsel0_gpio,
- gpio_flags, "tps62360-vsel0");
- if (ret) {
- dev_err(&client->dev,
- "%s(): Could not obtain vsel0 GPIO %d: %d\n",
- __func__, tps->vsel0_gpio, ret);
- return ret;
- }
+ gpio_flags = (pdata->vsel0_def_state) ?
+ GPIOD_OUT_HIGH : GPIOD_OUT_LOW;
+ tps->vsel0_gpio = devm_gpiod_get_optional(&client->dev, "vsel0", gpio_flags);
+ if (IS_ERR(tps->vsel0_gpio)) {
+ dev_err(&client->dev,
+ "%s(): Could not obtain vsel0 GPIO: %ld\n",
+ __func__, PTR_ERR(tps->vsel0_gpio));
+ return PTR_ERR(tps->vsel0_gpio);
+ }
- gpio_flags = (pdata->vsel1_def_state) ?
- GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW;
- ret = devm_gpio_request_one(&client->dev, tps->vsel1_gpio,
- gpio_flags, "tps62360-vsel1");
- if (ret) {
- dev_err(&client->dev,
- "%s(): Could not obtain vsel1 GPIO %d: %d\n",
- __func__, tps->vsel1_gpio, ret);
- return ret;
- }
+ gpio_flags = (pdata->vsel1_def_state) ?
+ GPIOD_OUT_HIGH : GPIOD_OUT_LOW;
+ tps->vsel1_gpio = devm_gpiod_get_optional(&client->dev, "vsel1", gpio_flags);
+ if (IS_ERR(tps->vsel1_gpio)) {
+ dev_err(&client->dev,
+ "%s(): Could not obtain vsel1 GPIO: %ld\n",
+ __func__, PTR_ERR(tps->vsel1_gpio));
+ return PTR_ERR(tps->vsel1_gpio);
+ }
+
+ if (tps->vsel0_gpio != NULL && tps->vsel1_gpio != NULL) {
tps->valid_gpios = true;
/*
@@ -515,6 +488,7 @@ MODULE_DEVICE_TABLE(i2c, tps62360_id);
static struct i2c_driver tps62360_i2c_driver = {
.driver = {
.name = "tps62360",
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(tps62360_of_match),
},
.probe = tps62360_probe,
generated by cgit (git 2.34.1) at 2025-12-25 10:10:35 +0000