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dm: gpio: Refactor to prepare for live tree support

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Move the main part of the GPIO request function into a separate function
so that it can be used by the live tree function when added. Update the
xlate method to use a node reference.

Update all GPIO drivers to handle the modified xlate() method.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2017-05-18 20:09:18 -06:00
parent 6fb2f57916
commit 3a57123e59
8 changed files with 41 additions and 29 deletions
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2
drivers/gpio/pca953x_gpio.c
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@@ -228,7 +228,7 @@ static int pca953x_get_function(struct udevice *dev, unsigned offset)
}
static int pca953x_xlate(struct udevice *dev, struct gpio_desc *desc,
struct fdtdec_phandle_args *args)
struct ofnode_phandle_args *args)
{
desc->offset = args->args[0];
desc->flags = args->args[1] & GPIO_ACTIVE_LOW ? GPIOD_ACTIVE_LOW : 0;