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dm: gpio: Add an implementation for gpio_get_number()
This has a prototype but no implementation. It returns the global GPIO number given a gpio_desc. It is useful for debugging in some cases. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Marek Vasut <marex@denx.de>
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@ -685,6 +685,18 @@ static int gpio_renumber(struct udevice *removed_dev)
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return 0;
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}
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int gpio_get_number(struct gpio_desc *desc)
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{
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struct udevice *dev = desc->dev;
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struct gpio_dev_priv *uc_priv;
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if (!dev)
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return -1;
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uc_priv = dev->uclass_priv;
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return uc_priv->gpio_base + desc->offset;
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}
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static int gpio_post_probe(struct udevice *dev)
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{
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struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
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