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authorMarc Zyngier <maz@kernel.org>2021-09-29 19:38:34 +0300
committerBjorn Helgaas <bhelgaas@google.com>2021-11-04 22:14:24 +0300
commit0ab8d0f6ae3f1234e38eaedc3ff7c22bfdf7f78c (patch)
tree3a1edc1ded04fe236b54c5cdd8522ac0d2d7db8f /include/linux/irqdomain.h
parente4e737bb5c170df6135a127739a9e6148ee3da82 (diff)
downloadlinux-0ab8d0f6ae3f1234e38eaedc3ff7c22bfdf7f78c.tar.xz
irqdomain: Make of_phandle_args_to_fwspec() generally available
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>
Diffstat (limited to 'include/linux/irqdomain.h')
-rw-r--r--include/linux/irqdomain.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 23e4ee523576..cfd442316f39 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -64,6 +64,10 @@ struct irq_fwspec {
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