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irqdomain: Introduce irq_domain_create_simple() API

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Linus Walleij pointed out that ird_domain_add_simple() gained
additional functionality and can't be anymore replaced with
a simple conditional. In preparation to upgrade GPIO library
to use fwnode, introduce irq_domain_create_simple() API which is
functional equivalent to the existing irq_domain_add_simple(),
but takes a pointer to the struct fwnode_handle as a parameter.

While at it, amend documentation to mention irq_domain_create_*()
functions where it makes sense.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
This commit is contained in:
Andy Shevchenko 2021-03-09 11:37:31 +02:00 • committed by Bartosz Golaszewski
parent 3fd19d4b56
commit 67196fea0f
3 changed files with 36 additions and 25 deletions
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19
include/linux/irqdomain.h
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@ -256,11 +256,11 @@ struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, int size,
irq_hw_number_t hwirq_max, int direct_max,
const struct irq_domain_ops *ops,
void *host_data);
struct irq_domain *irq_domain_add_simple(struct device_node *of_node,
unsigned int size,
unsigned int first_irq,
const struct irq_domain_ops *ops,
void *host_data);
struct irq_domain *irq_domain_create_simple(struct fwnode_handle *fwnode,
unsigned int size,
unsigned int first_irq,
const struct irq_domain_ops *ops,
void *host_data);
struct irq_domain *irq_domain_add_legacy(struct device_node *of_node,
unsigned int size,
unsigned int first_irq,
@ -325,6 +325,15 @@ static inline struct irq_domain *irq_find_host(struct device_node *node)
return d;
}
static inline struct irq_domain *irq_domain_add_simple(struct device_node *of_node,
unsigned int size,
unsigned int first_irq,
const struct irq_domain_ops *ops,
void *host_data)
{
return irq_domain_create_simple(of_node_to_fwnode(of_node), size, first_irq, ops, host_data);
}
/**
* irq_domain_add_linear() - Allocate and register a linear revmap irq_domain.
* @of_node: pointer to interrupt controller's device tree node.