diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2013-07-23 13:06:04 +0530 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-07-29 18:14:33 +0200 |
| commit | 5763318f562fc0b30f729dce531b2982e29db463 (patch) | |
| tree | 46b70613856f2ae34eb8a9e80ff09f3237e5e7e2 | |
| parent | 5e0dd400461410e3e3f97f53f1521337e2e0ce6e (diff) | |
gpio: palmas: add dt support
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@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio-palmas.txt | 27 | ||||
| -rw-r--r-- | drivers/gpio/gpio-palmas.c | 12 |
2 files changed, 38 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-palmas.txt b/Documentation/devicetree/bindings/gpio/gpio-palmas.txt new file mode 100644 index 000000000000..08b5b52a3ae0 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-palmas.txt @@ -0,0 +1,27 @@ +Palmas GPIO controller bindings + +Required properties: +- compatible: + - "ti,palams-gpio" for palma series of the GPIO controller + - "ti,tps80036-gpio" for Palma series device TPS80036. + - "ti,tps65913-gpio" for palma series device TPS65913. + - "ti,tps65914-gpio" for palma series device TPS65914. +- #gpio-cells : Should be two. + - first cell is the gpio pin number + - second cell is used to specify the gpio polarity: + 0 = active high + 1 = active low +- gpio-controller : Marks the device node as a GPIO controller. + +Note: This gpio node will be sub node of palmas node. + +Example: + palmas: tps65913@58 { + ::::::::::: + palmas_gpio: palmas_gpio { + compatible = "ti,palmas-gpio"; + gpio-controller; + #gpio-cells = <2>; + }; + ::::::::::: + }; diff --git a/drivers/gpio/gpio-palmas.c b/drivers/gpio/gpio-palmas.c index e3a4e56f5a42..09360c4b6386 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 +159,19 @@ static int palmas_gpio_remove(struct platform_device *pdev) return gpiochip_remove(&palmas_gpio->gpio_chip); } +static struct of_device_id of_palmas_gpio_match[] = { + { .compatible = "ti,palmas-gpio"}, + { .compatible = "ti,tps65913-gpio"}, + { .compatible = "ti,tps65914-gpio"}, + { .compatible = "ti,tps80036-gpio"}, + { }, +}; +MODULE_DEVICE_TABLE(of, of_palmas_gpio_match); + static struct platform_driver palmas_gpio_driver = { .driver.name = "palmas-gpio", .driver.owner = THIS_MODULE, + .driver.of_match_table = of_palmas_gpio_match, .probe = palmas_gpio_probe, .remove = palmas_gpio_remove, }; |