of_phandle_args_to_fwspec() can be generally useful to code extracting a DT
of_phandle and using an irq_fwspec to use the hierarchical irqdomain API.
Make it visible to the rest of the kernel, including modules.
Link: https://lore.kernel.org/r/20210929163847.2807812-2-maz@kernel.org
Tested-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
u32 param[IRQ_DOMAIN_IRQ_SPEC_PARAMS];
};
+/* Conversion function from of_phandle_args fields to fwspec */
+void of_phandle_args_to_fwspec(struct device_node *np, const u32 *args,
+ unsigned int count, struct irq_fwspec *fwspec);
+
/*
* Should several domains have the same device node, but serve
* different purposes (for example one domain is for PCI/MSI, and the
return 0;
}
-static void of_phandle_args_to_fwspec(struct device_node *np, const u32 *args,
- unsigned int count,
- struct irq_fwspec *fwspec)
+void of_phandle_args_to_fwspec(struct device_node *np, const u32 *args,
+ unsigned int count, struct irq_fwspec *fwspec)
{
int i;
for (i = 0; i < count; i++)
fwspec->param[i] = args[i];
}
+EXPORT_SYMBOL_GPL(of_phandle_args_to_fwspec);
unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec)
{