gpio: pch: allow use from device tree

Allow GPIOs from the gpio-pch driver to be referenced from device tree
by simply setting the struct gpio_chip of_node pointer to that of the
struct pci_dev.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/gpio/gpio-pch.c b/drivers/gpio/gpio-pch.c
index e43db64..a650a6c 100644 (file)
--- a/drivers/gpio/gpio-pch.c
+++ b/drivers/gpio/gpio-pch.c
@@ -394,6 +394,7 @@ static int pch_gpio_probe(struct pci_dev *pdev,
        pci_set_drvdata(pdev, chip);
        spin_lock_init(&chip->spinlock);
        pch_gpio_setup(chip);
+       chip->gpio.of_node = pdev->dev.of_node;
        ret = gpiochip_add(&chip->gpio);
        if (ret) {
                dev_err(&pdev->dev, "PCH gpio: Failed to register GPIO\n");