[PATCH] gpio: palmas: add dt support

From: Laxman Dewangan
Date: Thu Mar 21 2013 - 10:32:53 EST


Add of_device_id table for Palma GPIO to be enable the
driver from DT file.

The driver can be registered from DT file as:
palmas: tps65913@58 {
:::::::::::
palmas_gpio: palmas_gpio {
compatible = "ti,palmas-gpio";
gpio-controller;
#gpio-cells = <2>;
};
};

Signed-off-by: Laxman Dewangan <ldewangan@xxxxxxxxxx>
---
drivers/gpio/gpio-palmas.c | 11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/drivers/gpio/gpio-palmas.c b/drivers/gpio/gpio-palmas.c
index e3a4e56..fddaa0d 100644
--- a/drivers/gpio/gpio-palmas.c
+++ b/drivers/gpio/gpio-palmas.c
@@ -134,7 +134,7 @@ static int palmas_gpio_probe(struct platform_device *pdev)
palmas_gpio->gpio_chip.get = palmas_gpio_get;
palmas_gpio->gpio_chip.dev = &pdev->dev;
#ifdef CONFIG_OF_GPIO
- palmas_gpio->gpio_chip.of_node = palmas->dev->of_node;
+ palmas_gpio->gpio_chip.of_node = pdev->dev.of_node;
#endif
palmas_pdata = dev_get_platdata(palmas->dev);
if (palmas_pdata && palmas_pdata->gpio_base)
@@ -159,9 +159,18 @@ static int palmas_gpio_remove(struct platform_device *pdev)
return gpiochip_remove(&palmas_gpio->gpio_chip);
}

+#ifdef CONFIG_OF
+static struct of_device_id of_palmas_gpio_match[] = {
+ { .compatible = "ti,palmas-gpio"},
+ { },
+};
+MODULE_DEVICE_TABLE(of, of_palmas_gpio_match);
+#endif
+
static struct platform_driver palmas_gpio_driver = {
.driver.name = "palmas-gpio",
.driver.owner = THIS_MODULE,
+ .driver.of_match_table = of_match_ptr(of_palmas_gpio_match),
.probe = palmas_gpio_probe,
.remove = palmas_gpio_remove,
};
--
1.7.1.1

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