diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index daebd92f32c7..6c97953d593b 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -1273,6 +1273,17 @@ static int sc16is7xx_gpio_set(struct gpio_chip *chip, unsigned int offset, return 0; } +static int sc16is7xx_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) +{ + struct sc16is7xx_port *s = gpiochip_get_data(chip); + struct uart_port *port = &s->p[0].port; + unsigned int val; + + val = sc16is7xx_port_read(port, SC16IS7XX_IODIR_REG); + + return val & BIT(offset) ? GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN; +} + static int sc16is7xx_gpio_direction_input(struct gpio_chip *chip, unsigned offset) { @@ -1350,6 +1361,7 @@ static int sc16is7xx_setup_gpio_chip(struct sc16is7xx_port *s) s->gpio.parent = dev; s->gpio.label = dev_name(dev); s->gpio.init_valid_mask = sc16is7xx_gpio_init_valid_mask; + s->gpio.get_direction = sc16is7xx_gpio_get_direction; s->gpio.direction_input = sc16is7xx_gpio_direction_input; s->gpio.get = sc16is7xx_gpio_get; s->gpio.direction_output = sc16is7xx_gpio_direction_output;