| Message ID | 20110615193759.23641.26212.stgit@ponder (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
On Wed, Jun 15, 2011 at 12:38 PM, Grant Likely <grant.likely@secretlab.ca> wrote: > Add support for decoding gpios from the device tree > > Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Olof Johansson <olof@lixom.net> ------------------------------------------------------------------------------ EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev
diff --git a/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt b/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt new file mode 100644 index 0000000..afb3ff3 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt @@ -0,0 +1,7 @@ +NVIDIA Tegra 2 GPIO controller + +Required properties: +- compatible : "nvidia,tegra250-gpio" +- #gpio-cells : Should be two. The first cell is the pin number and the + second cell is used to specify optional parameters (currently unused). +- gpio-controller : Marks the device node as a GPIO controller. diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c index 919d638..13afb88 100644 --- a/drivers/gpio/gpio-tegra.c +++ b/drivers/gpio/gpio-tegra.c @@ -23,6 +23,7 @@ #include <linux/io.h> #include <linux/gpio.h> +#include <linux/of.h> #include <asm/mach/irq.h> @@ -340,6 +341,15 @@ static int __init tegra_gpio_init(void) } } +#ifdef CONFIG_OF_GPIO + /* + * This isn't ideal, but it gets things hooked up until this + * driver is converted into a platform_device + */ + tegra_gpio_chip.of_node = of_find_compatible_node(NULL, NULL, + "nvidia,tegra250-gpio"); +#endif /* CONFIG_OF_GPIO */ + gpiochip_add(&tegra_gpio_chip); for (i = INT_GPIO_BASE; i < (INT_GPIO_BASE + TEGRA_NR_GPIOS); i++) {
Add support for decoding gpios from the device tree Signed-off-by: Grant Likely <grant.likely@secretlab.ca> --- .../devicetree/bindings/gpio/gpio_nvidia.txt | 7 +++++++ drivers/gpio/gpio-tegra.c | 10 ++++++++++ 2 files changed, 17 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/gpio/gpio_nvidia.txt ------------------------------------------------------------------------------ EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev