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From: Kishon Vijay Abraham I <kishon@ti.com>
To: Kishon Vijay Abraham I <kishon@ti.com>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Rob Herring <robh+dt@kernel.org>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Marc Zyngier <maz@kernel.org>
Cc: <linux-pci@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	Lokesh Vutla <lokeshvutla@ti.com>
Subject: [PATCH 3/6] irqdomain: Export of_phandle_args_to_fwspec()
Date: Thu, 25 Mar 2021 14:30:23 +0530	[thread overview]
Message-ID: <20210325090026.8843-4-kishon@ti.com> (raw)
In-Reply-To: <20210325090026.8843-1-kishon@ti.com>

Export of_phandle_args_to_fwspec() to be used by drivers.
of_phandle_args_to_fwspec() can be used by drivers to get irq specifier
from device node useful while creating hierarchy domain. This was
suggested by Marc Zyngier [1].

[1] -> http://lore.kernel.org/r/20190223121143.14c1f150@why.wild-wind.fr.eu.org/
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 include/linux/irqdomain.h | 2 ++
 kernel/irq/irqdomain.c    | 6 +++---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 42d196805f58..0236f508259e 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -391,6 +391,8 @@ extern void irq_domain_associate_many(struct irq_domain *domain,
 extern unsigned int irq_create_mapping_affinity(struct irq_domain *host,
 				      irq_hw_number_t hwirq,
 				      const struct irq_affinity_desc *affinity);
+void of_phandle_args_to_fwspec(struct device_node *np, const u32 *args, unsigned int count,
+			       struct irq_fwspec *fwspec);
 extern unsigned int irq_create_fwspec_mapping(struct irq_fwspec *fwspec);
 extern void irq_dispose_mapping(unsigned int virq);
 
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 288151393a06..70f050741ab2 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -756,9 +756,8 @@ static int irq_domain_translate(struct irq_domain *d,
 	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;
 
@@ -768,6 +767,7 @@ static void of_phandle_args_to_fwspec(struct device_node *np, const u32 *args,
 	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)
 {
-- 
2.17.1


  parent reply	other threads:[~2021-03-25  9:01 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-25  9:00 [PATCH 0/6] PCI: Add legacy interrupt support in Keystone Kishon Vijay Abraham I
2021-03-25  9:00 ` [PATCH 1/6] dt-bindings: PCI: ti,am65: Add PCIe host mode dt-bindings for TI's AM65 SoC Kishon Vijay Abraham I
2021-03-25 16:56   ` [PATCH 1/6] dt-bindings: PCI: ti, am65: " Rob Herring
2021-03-25 23:38   ` [PATCH 1/6] dt-bindings: PCI: ti,am65: " Rob Herring
2021-03-30  9:29     ` Kishon Vijay Abraham I
2021-04-20 13:13       ` Rob Herring
2021-03-25  9:00 ` [PATCH 2/6] dt-bindings: PCI: ti,am65: Add PCIe endpoint " Kishon Vijay Abraham I
2021-03-25 16:56   ` [PATCH 2/6] dt-bindings: PCI: ti, am65: " Rob Herring
2021-03-25  9:00 ` Kishon Vijay Abraham I [this message]
2021-03-25  9:00 ` [PATCH 4/6] PCI: keystone: Convert to using hierarchy domain for legacy interrupts Kishon Vijay Abraham I
2021-03-26  6:58   ` Krzysztof Wilczyński
2021-03-25  9:00 ` [PATCH 5/6] PCI: keystone: Add PCI legacy interrupt support for AM654 Kishon Vijay Abraham I
2021-03-26  7:14   ` Krzysztof Wilczyński
2021-04-02 11:11   ` Marc Zyngier
2021-03-25  9:00 ` [PATCH 6/6] PCI: keystone: Add workaround for Errata #i2037 (AM65x SR 1.0) Kishon Vijay Abraham I
2021-03-26  7:19   ` Krzysztof Wilczyński
2021-05-17 13:15 ` [PATCH 0/6] PCI: Add legacy interrupt support in Keystone Christian Gmeiner
2021-05-17 13:21   ` Kishon Vijay Abraham I

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