From: Hugo Villeneuve hvilleneuve@dimonoff.com

In preparation for upcoming patch "fix regression with GPIO configuration". To facilitate review and make code more modular.

Cc: stable@vger.kernel.org # 6.1.x Signed-off-by: Hugo Villeneuve hvilleneuve@dimonoff.com Reviewed-by: Lech Perczak lech.perczak@camlingroup.com Tested-by: Lech Perczak lech.perczak@camlingroup.com --- drivers/tty/serial/sc16is7xx.c | 39 ++++++++++++++++++++-------------- 1 file changed, 23 insertions(+), 16 deletions(-)

diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index 0c903d44429c..279d7dcb1447 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -1349,6 +1349,26 @@ static int sc16is7xx_gpio_direction_output(struct gpio_chip *chip,

return 0; } + +static int sc16is7xx_setup_gpio_chip(struct device *dev) +{ + struct sc16is7xx_port *s = dev_get_drvdata(dev); + + if (!s->devtype->nr_gpio) + return 0; + + s->gpio.owner = THIS_MODULE; + s->gpio.parent = dev; + s->gpio.label = dev_name(dev); + s->gpio.direction_input = sc16is7xx_gpio_direction_input; + s->gpio.get = sc16is7xx_gpio_get; + s->gpio.direction_output = sc16is7xx_gpio_direction_output; + s->gpio.set = sc16is7xx_gpio_set; + s->gpio.base = -1; + s->gpio.ngpio = s->devtype->nr_gpio; + s->gpio.can_sleep = 1; + return gpiochip_add_data(&s->gpio, s); +} #endif

static const struct serial_rs485 sc16is7xx_rs485_supported = { @@ -1502,22 +1522,9 @@ static int sc16is7xx_probe(struct device *dev, }

#ifdef CONFIG_GPIOLIB - if (devtype->nr_gpio) { - /* Setup GPIO cotroller */ - s->gpio.owner = THIS_MODULE; - s->gpio.parent = dev; - s->gpio.label = dev_name(dev); - s->gpio.direction_input = sc16is7xx_gpio_direction_input; - s->gpio.get = sc16is7xx_gpio_get; - s->gpio.direction_output = sc16is7xx_gpio_direction_output; - s->gpio.set = sc16is7xx_gpio_set; - s->gpio.base = -1; - s->gpio.ngpio = devtype->nr_gpio; - s->gpio.can_sleep = 1; - ret = gpiochip_add_data(&s->gpio, s); - if (ret) - goto out_thread; - } + ret = sc16is7xx_setup_gpio_chip(dev, mctrl_mask); + if (ret) + goto out_thread; #endif

/*