From: Will Deacon <will.deacon@arm.com>
Date: Fri, 25 Nov 2011 18:23:36 +0000 (+0100)
Subject: ARM: 7177/1: GIC: avoid skipping non-existent PPIs in irq_start calculation
X-Git-Tag: v3.2-rc4~2^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fe41db7b3aca512e19b8ef4fbd5ad55545005d25;p=pandora-kernel.git

ARM: 7177/1: GIC: avoid skipping non-existent PPIs in irq_start calculation

Commit 4294f8baa ("ARM: gic: add irq_domain support") defines irq_start
as irq_start = (irq_start & ~31) + 16; On a platform with a GIC and a
CPU without PPIs, this results in irq_start being off by 16.

This patch fixes gic_init so that we only carve out a PPI space when
PPIs exist for the GIC being initialised.

Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

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