On 09/16/2013 03:32 AM, Thierry Reding wrote:
> This is a version of of_irq_to_resource() that propagates the precise
> error code instead of returning 0 for all errors. It will be used in
> subsequent patches to allow further propagation of error codes.
>
> To avoid code duplication, implement of_irq_to_resource() as a wrapper
> around the new __of_irq_to_resource().
I think the callers in this case are manageable to update as well.
Several cases could simply use irq_of_parse_and_map instead as they just
pass in a NULL resource.
Rob
>
> Signed-off-by: Thierry Reding <tred...@nvidia.com>
> ---
> drivers/of/irq.c | 33 +++++++++++++++++++++++++--------
> 1 file changed, 25 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/of/irq.c b/drivers/of/irq.c
> index 8225289..57396fd 100644
> --- a/drivers/of/irq.c
> +++ b/drivers/of/irq.c
> @@ -343,15 +343,15 @@ int of_irq_map_one(struct device_node *device, int
> index, struct of_irq *out_irq
> }
> EXPORT_SYMBOL_GPL(of_irq_map_one);
>
> -/**
> - * of_irq_to_resource - Decode a node's IRQ and return it as a resource
> - * @dev: pointer to device tree node
> - * @index: zero-based index of the irq
> - * @r: pointer to resource structure to return result into.
> - */
> -int of_irq_to_resource(struct device_node *dev, int index, struct resource
> *r)
> +static int __of_irq_to_resource(struct device_node *dev, unsigned int index,
> + struct resource *r)
> {
> - int irq = irq_of_parse_and_map(dev, index);
> + unsigned int irq;
> + int ret;
> +
> + ret = of_irq_get(dev, index, &irq);
> + if (ret)
> + return ret;
>
> /* Only dereference the resource if both the
> * resource and the irq are valid. */
> @@ -373,6 +373,23 @@ int of_irq_to_resource(struct device_node *dev, int
> index, struct resource *r)
>
> return irq;
> }
> +
> +/**
> + * of_irq_to_resource - Decode a node's IRQ and return it as a resource
> + * @dev: pointer to device tree node
> + * @index: zero-based index of the irq
> + * @r: pointer to resource structure to return result into.
> + */
> +int of_irq_to_resource(struct device_node *dev, int index, struct resource
> *r)
> +{
> + int ret;
> +
> + ret = __of_irq_to_resource(dev, index, r);
> + if (ret < 0)
> + return 0;
> +
> + return ret;
> +}
> EXPORT_SYMBOL_GPL(of_irq_to_resource);
>
> /**
>
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