summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/interrupt-controller
diff options
context:
space:
mode:
authorFlorian Fainelli <f.fainelli@gmail.com>2019-10-24 13:14:14 -0700
committerMarc Zyngier <maz@kernel.org>2019-11-10 18:47:47 +0000
commite14b5e5ff0841270e6262e3e5fd69ad764a80aee (patch)
tree3e2e58667c4fd772e2dc66cc8fc22e31188f05b3 /Documentation/devicetree/bindings/interrupt-controller
parent27eebb60357ed5aa6659442f92907c0f7368d6ae (diff)
downloadlinux-e14b5e5ff0841270e6262e3e5fd69ad764a80aee.tar.bz2
dt-bindings: Document brcm, int-fwd-mask property for bcm7038-l1-intc
Indicate that the brcm,int-fwd-mask property is optional and can be set on platforms which require to leave specific interrupts unmanaged by Linux and need to retain the firmware configuration. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20191024201415.23454-5-f.fainelli@gmail.com
Diffstat (limited to 'Documentation/devicetree/bindings/interrupt-controller')
-rw-r--r--Documentation/devicetree/bindings/interrupt-controller/brcm,bcm7038-l1-intc.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm7038-l1-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm7038-l1-intc.txt
index 4eb043270f5b..5ddef1dc0c1a 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm7038-l1-intc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm7038-l1-intc.txt
@@ -36,6 +36,12 @@ Optional properties:
- brcm,irq-can-wake: If present, this means the L1 controller can be used as a
wakeup source for system suspend/resume.
+Optional properties:
+
+- brcm,int-fwd-mask: if present, a bit mask to indicate which interrupts
+ have already been configured by the firmware and should be left unmanaged.
+ This should have one 32-bit word per status/set/clear/mask group.
+
If multiple reg ranges and interrupt-parent entries are present on an SMP
system, the driver will allow IRQ SMP affinity to be set up through the
/proc/irq/ interface. In the simplest possible configuration, only one