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authorMarc Zyngier <marc.zyngier@arm.com>2015-03-11 16:43:00 +0100
committerJason Cooper <jason@lakedaemon.net>2015-03-15 01:40:39 +0100
commite9479e0e832b7e59bffcebfae9953759b2c195c4 (patch)
treed2d388a2b82e3b670be00f3a66aacc91e4a64679 /arch/arm/mach-tegra/irq.c
parentirqchip: tegra: Add DT-based support for legacy interrupt controller (diff)
downloadlinux-e9479e0e832b7e59bffcebfae9953759b2c195c4.tar.xz
linux-e9479e0e832b7e59bffcebfae9953759b2c195c4.zip
ARM: tegra: skip gic_arch_extn setup if DT has a LIC node
If we detect that our DT has a LIC node, don't setup gic_arch_extn, and skip tegra_legacy_irq_syscore_init as well. This is only a temporary measure until that code is removed for good. Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Link: https://lkml.kernel.org/r/1426088583-15097-4-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'arch/arm/mach-tegra/irq.c')
-rw-r--r--arch/arm/mach-tegra/irq.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index 7f87a5047140..1593c4c8b7f0 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -255,11 +255,22 @@ static void tegra114_gic_cpu_pm_registration(void)
static void tegra114_gic_cpu_pm_registration(void) { }
#endif
+static const struct of_device_id tegra_ictlr_match[] __initconst = {
+ { .compatible = "nvidia,tegra20-ictlr" },
+ { .compatible = "nvidia,tegra30-ictlr" },
+ { }
+};
+
void __init tegra_init_irq(void)
{
int i;
void __iomem *distbase;
+ if (of_find_matching_node(NULL, tegra_ictlr_match))
+ goto skip_extn_setup;
+
+ tegra_legacy_irq_syscore_init();
+
distbase = IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE);
num_ictlrs = readl_relaxed(distbase + GIC_DIST_CTR) & 0x1f;
@@ -283,5 +294,6 @@ void __init tegra_init_irq(void)
gic_arch_extn.irq_set_wake = tegra_set_wake;
gic_arch_extn.flags = IRQCHIP_MASK_ON_SUSPEND;
+skip_extn_setup:
tegra114_gic_cpu_pm_registration();
}