linux-kernel - [tip:irq/core] irqchip/gic: Kill the xlate method

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Date:	Tue, 13 Oct 2015 10:58:46 -0700
From:	tip-bot for Marc Zyngier <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-arm-kernel@...ts.infradead.org, mingo@...nel.org,
	Suravee.Suthikulpanit@....com, hpa@...or.com, graeme@...a.org.uk,
	marc.zyngier@....com, lorenzo.pieralisi@....com,
	tglx@...utronix.de, linux-kernel@...r.kernel.org,
	jiang.liu@...ux.intel.com, hanjun.guo@...aro.org,
	tomasz.nowicki@...aro.org, jakeo@...rosoft.com,
	jason@...edaemon.net, rjw@...ysocki.net
Subject: [tip:irq/core] irqchip/gic: Kill the xlate method

Commit-ID:  18bd8847cdd4dac3276ae9973739c570ce37e0b7
Gitweb:     http://git.kernel.org/tip/18bd8847cdd4dac3276ae9973739c570ce37e0b7
Author:     Marc Zyngier <marc.zyngier@....com>
AuthorDate: Tue, 13 Oct 2015 12:51:41 +0100
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Tue, 13 Oct 2015 19:01:25 +0200

irqchip/gic: Kill the xlate method

We are now left with only two use models for the GIC driver:
- Via a firmware interface, which mandates a hierarchical domain,
  and the use of the 'translate' method
- The legacy platforms, which assume irq==hwirq, hence not using
  the 'xlate' method.

The logical conclusion is that we can now nuke the 'xlate' method
altogether.

Signed-off-by: Marc Zyngier <marc.zyngier@....com>
Reviewed-and-tested-by: Hanjun Guo <hanjun.guo@...aro.org>
Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Cc: <linux-arm-kernel@...ts.infradead.org>
Cc: Tomasz Nowicki <tomasz.nowicki@...aro.org>
Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
Cc: Graeme Gregory <graeme@...a.org.uk>
Cc: Jake Oshins <jakeo@...rosoft.com>
Cc: Jiang Liu <jiang.liu@...ux.intel.com>
Cc: Jason Cooper <jason@...edaemon.net>
Cc: Rafael J. Wysocki <rjw@...ysocki.net>
Link: http://lkml.kernel.org/r/1444737105-31573-14-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 drivers/irqchip/irq-gic.c | 25 -------------------------
 1 file changed, 25 deletions(-)

diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 491eacb..1d0e768 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -916,30 +916,6 @@ static void gic_irq_domain_unmap(struct irq_domain *d, unsigned int irq)
 {
 }
 
-static int gic_irq_domain_xlate(struct irq_domain *d,
-				struct device_node *controller,
-				const u32 *intspec, unsigned int intsize,
-				unsigned long *out_hwirq, unsigned int *out_type)
-{
-	unsigned long ret = 0;
-
-	if (irq_domain_get_of_node(d) != controller)
-		return -EINVAL;
-	if (intsize < 3)
-		return -EINVAL;
-
-	/* Get the interrupt number and add 16 to skip over SGIs */
-	*out_hwirq = intspec[1] + 16;
-
-	/* For SPIs, we need to add 16 more to get the GIC irq ID number */
-	if (!intspec[0])
-		*out_hwirq += 16;
-
-	*out_type = intspec[2] & IRQ_TYPE_SENSE_MASK;
-
-	return ret;
-}
-
 static int gic_irq_domain_translate(struct irq_domain *d,
 				    struct irq_fwspec *fwspec,
 				    unsigned long *hwirq,
@@ -1021,7 +997,6 @@ static const struct irq_domain_ops gic_irq_domain_hierarchy_ops = {
 static const struct irq_domain_ops gic_irq_domain_ops = {
 	.map = gic_irq_domain_map,
 	.unmap = gic_irq_domain_unmap,
-	.xlate = gic_irq_domain_xlate,
 };
 
 static void __init __gic_init_bases(unsigned int gic_nr, int irq_start,
--
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