From: John Crispin <blogic@openwrt.org>
Date: Tue, 29 Jan 2013 18:46:02 +0000 (+0000)
Subject: MIPS: Lantiq: Fix cp0_perfcount_irq mapping
X-Git-Tag: firefly_0821_release~3680^2~1182^2~5
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=79d61a046bf02a3eff9da15e607ac35c172de3a7;p=firefly-linux-kernel-4.4.55.git

MIPS: Lantiq: Fix cp0_perfcount_irq mapping

The introduction of the OF support broke the cp0_perfcount_irq mapping. This
resulted in oprofile not working anymore.

Offending commit is :

commit 3645da0276ae9f6938ff29b13904b803ecb68424
Author: John Crispin <blogic@openwrt.org>
Date:   Tue Apr 17 10:18:32 2012 +0200

OF: MIPS: lantiq: implement irq_domain support

Signed-off-by: Conor O'Gorman <i@conorogorman.net>
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4875/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index f36acd1b3808..a7935bf0fecb 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -408,7 +408,7 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
 #endif
 
 	/* tell oprofile which irq to use */
-	cp0_perfcount_irq = LTQ_PERF_IRQ;
+	cp0_perfcount_irq = irq_create_mapping(ltq_domain, LTQ_PERF_IRQ);
 
 	/*
 	 * if the timer irq is not one of the mips irqs we need to