diff options
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-rcar.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c index 1e14a6c74ed1..4fc13ce9c60a 100644 --- a/drivers/gpio/gpio-rcar.c +++ b/drivers/gpio/gpio-rcar.c @@ -251,17 +251,32 @@ static void gpio_rcar_config_general_input_output_mode(struct gpio_chip *chip, static int gpio_rcar_request(struct gpio_chip *chip, unsigned offset) { - return pinctrl_request_gpio(chip->base + offset); + struct gpio_rcar_priv *p = gpio_to_priv(chip); + int error; + + error = pm_runtime_get_sync(&p->pdev->dev); + if (error < 0) + return error; + + error = pinctrl_request_gpio(chip->base + offset); + if (error) + pm_runtime_put(&p->pdev->dev); + + return error; } static void gpio_rcar_free(struct gpio_chip *chip, unsigned offset) { + struct gpio_rcar_priv *p = gpio_to_priv(chip); + pinctrl_free_gpio(chip->base + offset); /* Set the GPIO as an input to ensure that the next GPIO request won't * drive the GPIO pin as an output. */ gpio_rcar_config_general_input_output_mode(chip, offset, false); + + pm_runtime_put(&p->pdev->dev); } static int gpio_rcar_direction_input(struct gpio_chip *chip, unsigned offset) @@ -405,7 +420,6 @@ static int gpio_rcar_probe(struct platform_device *pdev) } pm_runtime_enable(dev); - pm_runtime_get_sync(dev); io = platform_get_resource(pdev, IORESOURCE_MEM, 0); irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); @@ -487,7 +501,6 @@ static int gpio_rcar_probe(struct platform_device *pdev) err1: gpiochip_remove(gpio_chip); err0: - pm_runtime_put(dev); pm_runtime_disable(dev); return ret; } @@ -498,7 +511,6 @@ static int gpio_rcar_remove(struct platform_device *pdev) gpiochip_remove(&p->gpio_chip); - pm_runtime_put(&pdev->dev); pm_runtime_disable(&pdev->dev); return 0; } |