irqchip/gic: Add arm,pl390 support

Add support for the PrimeCell® Generic Interrupt Controller (PL390) to
the GIC DT bindings and driver.

Currently the GIC driver treats this GIC variant the same as other GIC
variants, but there are differences in hardware topology (e.g. clock
inputs).

Sort the list of compatible values while we're at it.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh+dt@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Link: http://lkml.kernel.org/r/1442261204-30931-2-git-send-email-geert%2Brenesas@glider.be
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/Documentation/devicetree/bindings/arm/gic.txt b/Documentation/devicetree/bindings/arm/gic.txt
index 2da059a..2474285 100644 (file)
--- a/Documentation/devicetree/bindings/arm/gic.txt
+++ b/Documentation/devicetree/bindings/arm/gic.txt
@@ -11,13 +11,14 @@ have PPIs or SGIs.
 Main node required properties:
 
 - compatible : should be one of:
-       "arm,gic-400"
+       "arm,arm1176jzf-devchip-gic"
+       "arm,arm11mp-gic"
        "arm,cortex-a15-gic"
-       "arm,cortex-a9-gic"
        "arm,cortex-a7-gic"
-       "arm,arm11mp-gic"
+       "arm,cortex-a9-gic"
+       "arm,gic-400"
+       "arm,pl390"
        "brcm,brahma-b15-gic"
-       "arm,arm1176jzf-devchip-gic"
        "qcom,msm-8660-qgic"
        "qcom,msm-qgic2"
 - interrupt-controller : Identifies the node as an interrupt controller

diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 982c09c..d0ce7ed 100644 (file)
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -1191,6 +1191,7 @@ IRQCHIP_DECLARE(cortex_a9_gic, "arm,cortex-a9-gic", gic_of_init);
 IRQCHIP_DECLARE(cortex_a7_gic, "arm,cortex-a7-gic", gic_of_init);
 IRQCHIP_DECLARE(msm_8660_qgic, "qcom,msm-8660-qgic", gic_of_init);
 IRQCHIP_DECLARE(msm_qgic2, "qcom,msm-qgic2", gic_of_init);
+IRQCHIP_DECLARE(pl390, "arm,pl390", gic_of_init);
 
 #endif