linux-kernel - [RFCv2 PATCH 3/8] gicv2m: Convert to use GIC irq_domain_ops.init_alloc

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Date:	Mon, 13 Jul 2015 16:14:19 +0700
From:	Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
To:	<tglx@...utronix.de>, <marc.zyngier@....com>,
	<lorenzo.pieralisi@....com>, <hanjun.guo@...aro.org>,
	<tomasz.nowicki@...aro.org>
CC:	<rjw@...ysocki.net>, <al.stone@...aro.org>,
	<catalin.marinas@....com>, <will.deacon@....com>,
	<msalter@...hat.com>, <grant.likely@...aro.org>,
	<leo.duran@....com>, <sherry.hurwitz@....com>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-acpi@...r.kernel.org>,
	Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
Subject: [RFCv2 PATCH 3/8] gicv2m: Convert to use GIC irq_domain_ops.init_alloc_info

This patch converts the current call to irq_domain_alloc_irqs_parent()
to use structure initilized by irq_domain_ops.init_alloc_info()
instead of of_phandle_args.

Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
---
 drivers/irqchip/irq-gic-v2m.c | 23 +++++++++++++++--------
 1 file changed, 15 insertions(+), 8 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c
index bf5082d..e4e2a92 100644
--- a/drivers/irqchip/irq-gic-v2m.c
+++ b/drivers/irqchip/irq-gic-v2m.c
@@ -22,6 +22,10 @@
 #include <linux/of_pci.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
+#include <linux/irqchip/arm-gic.h>
+#ifdef CONFIG_ARM_GIC_ACPI
+#include <linux/irqchip/arm-gic-acpi.h>
+#endif
 
 /*
 * MSI_TYPER:
@@ -114,17 +118,20 @@ static int gicv2m_irq_gic_domain_alloc(struct irq_domain *domain,
 				       unsigned int virq,
 				       irq_hw_number_t hwirq)
 {
-	struct of_phandle_args args;
 	struct irq_data *d;
 	int err;
+	void *info;
+	struct irq_domain *parent = domain->parent;
+	uint32_t data[3] = {GIC_INT_TYPE_GSI, hwirq, IRQ_TYPE_EDGE_RISING};
+
+	if (parent->ops->init_alloc_info) {
+		err = parent->ops->init_alloc_info(data, 3, parent->of_node,
+						   &info);
+		if (err)
+			return err;
+	}
 
-	args.np = domain->parent->of_node;
-	args.args_count = 3;
-	args.args[0] = 0;
-	args.args[1] = hwirq - 32;
-	args.args[2] = IRQ_TYPE_EDGE_RISING;
-
-	err = irq_domain_alloc_irqs_parent(domain, virq, 1, &args);
+	err = irq_domain_alloc_irqs_parent(domain, virq, 1, info);
 	if (err)
 		return err;
 
-- 
2.1.0

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