pinctrl: coh901: add device tree support
This makes it possible to probe the COH901 pinctrl driver from
the device tree, and assigned the device tree node in the
gpio_chip so we can look up cross-references from the device
tree. Start grabbing the per-port (bank) IRQs by index instead
of by name so we don't have to look up the IRQs by name going
forward.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
index edde3ac..d4f8afd 100644
--- a/drivers/pinctrl/pinctrl-coh901.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -773,8 +773,7 @@
port->number = portno;
port->gpio = gpio;
- port->irq = platform_get_irq_byname(pdev,
- port->name);
+ port->irq = platform_get_irq(pdev, portno);
dev_dbg(gpio->dev, "register IRQ %d for port %s\n", port->irq,
port->name);
@@ -811,6 +810,9 @@
}
dev_dbg(gpio->dev, "initialized %d GPIO ports\n", portno);
+#ifdef CONFIG_OF_GPIO
+ gpio->chip.of_node = pdev->dev.of_node;
+#endif
err = gpiochip_add(&gpio->chip);
if (err) {
dev_err(gpio->dev, "unable to add gpiochip: %d\n", err);
@@ -864,9 +866,15 @@
return 0;
}
+static const struct of_device_id u300_gpio_match[] = {
+ { .compatible = "stericsson,gpio-coh901" },
+ {},
+};
+
static struct platform_driver u300_gpio_driver = {
.driver = {
.name = "u300-gpio",
+ .of_match_table = u300_gpio_match,
},
.remove = __exit_p(u300_gpio_remove),
};