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path: root/drivers/gpio/gpio-tps65219.c
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Diffstat (limited to 'drivers/gpio/gpio-tps65219.c')
-rw-r--r--drivers/gpio/gpio-tps65219.c124
1 files changed, 105 insertions, 19 deletions
diff --git a/drivers/gpio/gpio-tps65219.c b/drivers/gpio/gpio-tps65219.c
index 526640c39a11..c0177088c54c 100644
--- a/drivers/gpio/gpio-tps65219.c
+++ b/drivers/gpio/gpio-tps65219.c
@@ -1,8 +1,8 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * GPIO driver for TI TPS65219 PMICs
+ * GPIO driver for TI TPS65214/TPS65215/TPS65219 PMICs
*
- * Copyright (C) 2022 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2022, 2025 Texas Instruments Incorporated - http://www.ti.com/
*/
#include <linux/bits.h>
@@ -13,20 +13,48 @@
#include <linux/regmap.h>
#define TPS65219_GPIO0_DIR_MASK BIT(3)
-#define TPS65219_GPIO0_OFFSET 2
-#define TPS65219_GPIO0_IDX 0
+#define TPS65214_GPIO0_DIR_MASK BIT(1)
+#define TPS6521X_GPIO0_OFFSET 2
+#define TPS6521X_GPIO0_IDX 0
+
+/*
+ * TPS65214 GPIO mapping
+ * Linux gpio offset 0 -> GPIO (pin16) -> bit_offset 2
+ * Linux gpio offset 1 -> GPO1 (pin9 ) -> bit_offset 0
+ *
+ * TPS65215 & TPS65219 GPIO mapping
+ * Linux gpio offset 0 -> GPIO (pin16) -> bit_offset 2
+ * Linux gpio offset 1 -> GPO1 (pin8 ) -> bit_offset 0
+ * Linux gpio offset 2 -> GPO2 (pin17) -> bit_offset 1
+ */
struct tps65219_gpio {
+ int (*change_dir)(struct gpio_chip *gc, unsigned int offset, unsigned int dir);
struct gpio_chip gpio_chip;
struct tps65219 *tps;
};
+static int tps65214_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
+{
+ struct tps65219_gpio *gpio = gpiochip_get_data(gc);
+ int ret, val;
+
+ if (offset != TPS6521X_GPIO0_IDX)
+ return GPIO_LINE_DIRECTION_OUT;
+
+ ret = regmap_read(gpio->tps->regmap, TPS65219_REG_GENERAL_CONFIG, &val);
+ if (ret)
+ return ret;
+
+ return !(val & TPS65214_GPIO0_DIR_MASK);
+}
+
static int tps65219_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
{
struct tps65219_gpio *gpio = gpiochip_get_data(gc);
int ret, val;
- if (offset != TPS65219_GPIO0_IDX)
+ if (offset != TPS6521X_GPIO0_IDX)
return GPIO_LINE_DIRECTION_OUT;
ret = regmap_read(gpio->tps->regmap, TPS65219_REG_MFP_1_CONFIG, &val);
@@ -42,7 +70,7 @@ static int tps65219_gpio_get(struct gpio_chip *gc, unsigned int offset)
struct device *dev = gpio->tps->dev;
int ret, val;
- if (offset != TPS65219_GPIO0_IDX) {
+ if (offset != TPS6521X_GPIO0_IDX) {
dev_err(dev, "GPIO%d is output only, cannot get\n", offset);
return -ENOTSUPP;
}
@@ -65,19 +93,18 @@ static int tps65219_gpio_get(struct gpio_chip *gc, unsigned int offset)
return ret;
}
-static void tps65219_gpio_set(struct gpio_chip *gc, unsigned int offset, int value)
+static int tps65219_gpio_set(struct gpio_chip *gc, unsigned int offset, int value)
{
struct tps65219_gpio *gpio = gpiochip_get_data(gc);
- struct device *dev = gpio->tps->dev;
int v, mask, bit;
- bit = (offset == TPS65219_GPIO0_IDX) ? TPS65219_GPIO0_OFFSET : offset - 1;
+ bit = (offset == TPS6521X_GPIO0_IDX) ? TPS6521X_GPIO0_OFFSET : offset - 1;
mask = BIT(bit);
v = value ? mask : 0;
- if (regmap_update_bits(gpio->tps->regmap, TPS65219_REG_GENERAL_CONFIG, mask, v))
- dev_err(dev, "GPIO%d, set to value %d failed.\n", offset, value);
+ return regmap_update_bits(gpio->tps->regmap,
+ TPS65219_REG_GENERAL_CONFIG, mask, v);
}
static int tps65219_gpio_change_direction(struct gpio_chip *gc, unsigned int offset,
@@ -112,12 +139,39 @@ static int tps65219_gpio_change_direction(struct gpio_chip *gc, unsigned int off
return -ENOTSUPP;
}
+static int tps65214_gpio_change_direction(struct gpio_chip *gc, unsigned int offset,
+ unsigned int direction)
+{
+ struct tps65219_gpio *gpio = gpiochip_get_data(gc);
+ struct device *dev = gpio->tps->dev;
+ int val, ret;
+
+ /**
+ * Verified if GPIO or GPO in parent function
+ * Masked value: 0 = GPIO, 1 = VSEL
+ */
+ ret = regmap_read(gpio->tps->regmap, TPS65219_REG_MFP_1_CONFIG, &val);
+ if (ret)
+ return ret;
+
+ ret = !!(val & BIT(TPS65219_GPIO0_DIR_MASK));
+ if (ret)
+ dev_err(dev, "GPIO%d configured as VSEL, not GPIO\n", offset);
+
+ ret = regmap_update_bits(gpio->tps->regmap, TPS65219_REG_GENERAL_CONFIG,
+ TPS65214_GPIO0_DIR_MASK, direction);
+ if (ret)
+ dev_err(dev, "Fail to change direction to %u for GPIO%d.\n", direction, offset);
+
+ return ret;
+}
+
static int tps65219_gpio_direction_input(struct gpio_chip *gc, unsigned int offset)
{
struct tps65219_gpio *gpio = gpiochip_get_data(gc);
struct device *dev = gpio->tps->dev;
- if (offset != TPS65219_GPIO0_IDX) {
+ if (offset != TPS6521X_GPIO0_IDX) {
dev_err(dev, "GPIO%d is output only, cannot change to input\n", offset);
return -ENOTSUPP;
}
@@ -125,21 +179,36 @@ static int tps65219_gpio_direction_input(struct gpio_chip *gc, unsigned int offs
if (tps65219_gpio_get_direction(gc, offset) == GPIO_LINE_DIRECTION_IN)
return 0;
- return tps65219_gpio_change_direction(gc, offset, GPIO_LINE_DIRECTION_IN);
+ return gpio->change_dir(gc, offset, GPIO_LINE_DIRECTION_IN);
}
static int tps65219_gpio_direction_output(struct gpio_chip *gc, unsigned int offset, int value)
{
+ struct tps65219_gpio *gpio = gpiochip_get_data(gc);
+
tps65219_gpio_set(gc, offset, value);
- if (offset != TPS65219_GPIO0_IDX)
+ if (offset != TPS6521X_GPIO0_IDX)
return 0;
if (tps65219_gpio_get_direction(gc, offset) == GPIO_LINE_DIRECTION_OUT)
return 0;
- return tps65219_gpio_change_direction(gc, offset, GPIO_LINE_DIRECTION_OUT);
+ return gpio->change_dir(gc, offset, GPIO_LINE_DIRECTION_OUT);
}
+static const struct gpio_chip tps65214_template_chip = {
+ .label = "tps65214-gpio",
+ .owner = THIS_MODULE,
+ .get_direction = tps65214_gpio_get_direction,
+ .direction_input = tps65219_gpio_direction_input,
+ .direction_output = tps65219_gpio_direction_output,
+ .get = tps65219_gpio_get,
+ .set_rv = tps65219_gpio_set,
+ .base = -1,
+ .ngpio = 2,
+ .can_sleep = true,
+};
+
static const struct gpio_chip tps65219_template_chip = {
.label = "tps65219-gpio",
.owner = THIS_MODULE,
@@ -147,7 +216,7 @@ static const struct gpio_chip tps65219_template_chip = {
.direction_input = tps65219_gpio_direction_input,
.direction_output = tps65219_gpio_direction_output,
.get = tps65219_gpio_get,
- .set = tps65219_gpio_set,
+ .set_rv = tps65219_gpio_set,
.base = -1,
.ngpio = 3,
.can_sleep = true,
@@ -155,6 +224,7 @@ static const struct gpio_chip tps65219_template_chip = {
static int tps65219_gpio_probe(struct platform_device *pdev)
{
+ enum pmic_id chip = platform_get_device_id(pdev)->driver_data;
struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent);
struct tps65219_gpio *gpio;
@@ -162,22 +232,38 @@ static int tps65219_gpio_probe(struct platform_device *pdev)
if (!gpio)
return -ENOMEM;
+ if (chip == TPS65214) {
+ gpio->gpio_chip = tps65214_template_chip;
+ gpio->change_dir = tps65214_gpio_change_direction;
+ } else if (chip == TPS65219) {
+ gpio->gpio_chip = tps65219_template_chip;
+ gpio->change_dir = tps65219_gpio_change_direction;
+ } else {
+ return -ENODATA;
+ }
+
gpio->tps = tps;
- gpio->gpio_chip = tps65219_template_chip;
gpio->gpio_chip.parent = tps->dev;
return devm_gpiochip_add_data(&pdev->dev, &gpio->gpio_chip, gpio);
}
+static const struct platform_device_id tps6521x_gpio_id_table[] = {
+ { "tps65214-gpio", TPS65214 },
+ { "tps65219-gpio", TPS65219 },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, tps6521x_gpio_id_table);
+
static struct platform_driver tps65219_gpio_driver = {
.driver = {
.name = "tps65219-gpio",
},
.probe = tps65219_gpio_probe,
+ .id_table = tps6521x_gpio_id_table,
};
module_platform_driver(tps65219_gpio_driver);
-MODULE_ALIAS("platform:tps65219-gpio");
MODULE_AUTHOR("Jonathan Cormier <jcormier@criticallink.com>");
-MODULE_DESCRIPTION("TPS65219 GPIO driver");
+MODULE_DESCRIPTION("TPS65214/TPS65215/TPS65219 GPIO driver");
MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-07-30 23:32:14 +0000