diff options
| -rw-r--r-- | drivers/gpio/gpio-max77620.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-max77620.c b/drivers/gpio/gpio-max77620.c index 35f365c36df9..8658c32c4690 100644 --- a/drivers/gpio/gpio-max77620.c +++ b/drivers/gpio/gpio-max77620.c @@ -202,6 +202,28 @@ static void max77620_gpio_set(struct gpio_chip *gc, unsigned int offset, dev_err(mgpio->dev, "CNFG_GPIO_OUT update failed: %d\n", ret); } +static int max77620_gpio_set_single_ended(struct gpio_chip *gc, + unsigned int offset, + enum single_ended_mode mode) +{ + struct max77620_gpio *mgpio = gpiochip_get_data(gc); + + switch (mode) { + case LINE_MODE_OPEN_DRAIN: + return regmap_update_bits(mgpio->rmap, GPIO_REG_ADDR(offset), + MAX77620_CNFG_GPIO_DRV_MASK, + MAX77620_CNFG_GPIO_DRV_OPENDRAIN); + case LINE_MODE_PUSH_PULL: + return regmap_update_bits(mgpio->rmap, GPIO_REG_ADDR(offset), + MAX77620_CNFG_GPIO_DRV_MASK, + MAX77620_CNFG_GPIO_DRV_PUSHPULL); + default: + break; + } + + return -ENOTSUPP; +} + static int max77620_gpio_to_irq(struct gpio_chip *gc, unsigned int offset) { struct max77620_gpio *mgpio = gpiochip_get_data(gc); @@ -238,6 +260,7 @@ static int max77620_gpio_probe(struct platform_device *pdev) mgpio->gpio_chip.direction_output = max77620_gpio_dir_output; mgpio->gpio_chip.set_debounce = max77620_gpio_set_debounce; mgpio->gpio_chip.set = max77620_gpio_set; + mgpio->gpio_chip.set_single_ended = max77620_gpio_set_single_ended; mgpio->gpio_chip.to_irq = max77620_gpio_to_irq; mgpio->gpio_chip.ngpio = MAX77620_GPIO_NR; mgpio->gpio_chip.can_sleep = 1; |