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From: Florian Fainelli <f.fainelli@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Florian Fainelli <f.fainelli@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Jason Cooper <jason@lakedaemon.net>,
	Marc Zyngier <maz@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Kevin Cernekee <cernekee@gmail.com>,
	devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
	FLATTENED DEVICE TREE BINDINGS),
	bcm-kernel-feedback-list@broadcom.com (open list:BROADCOM BMIPS
	MIPS ARCHITECTURE),
	linux-mips@vger.kernel.org (open list:BROADCOM BMIPS MIPS
	ARCHITECTURE)
Subject: [PATCH 4/6] dt-bindings: Document brcm,int-fwd-mask property for bcm7038-l1-intc
Date: Fri, 13 Sep 2019 12:10:24 -0700
Message-ID: <20190913191026.8801-5-f.fainelli@gmail.com> (raw)
In-Reply-To: <20190913191026.8801-1-f.fainelli@gmail.com>

Indicate that the brcm,int-fwd-mask property is optional and can be
optionaly set on platforms which require to leave specific interrupts
untouched from Linux and retain the firmware configuration.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 .../bindings/interrupt-controller/brcm,bcm7038-l1-intc.txt    | 4 ++++
 1 file changed, 4 insertions(+)

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..31d31af408c5 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 +36,10 @@ Optional properties:
 - brcm,irq-can-wake: If present, this means the L1 controller can be used as a
   wakeup source for system suspend/resume.
 
+- brcm,int-fwd-mask: if present, a bit mask to indicate which interrupts
+  have already been configured by the firmware and should be left untouched.
+  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
-- 
2.17.1


  parent reply index

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-13 19:10 [PATCH 0/6] irqchip/irq-bcm7038-l1 updates Florian Fainelli
2019-09-13 19:10 ` [PATCH 1/6] irqchip/irq-bcm7038-l1: Add PM support Florian Fainelli
2019-09-13 19:10 ` [PATCH 2/6] dt-bindings: Document brcm,irq-can-wake for brcm,bcm7038-l1-intc.txt Florian Fainelli
2019-09-13 19:10 ` [PATCH 3/6] irqchip/irq-bcm7038-l1: Enable parent IRQ if necessary Florian Fainelli
2019-09-13 19:10 ` Florian Fainelli [this message]
2019-09-13 19:10 ` [PATCH 5/6] irqchip/irq-bcm7038-l1: Support brcm,int-fwd-mask Florian Fainelli
2019-09-13 19:10 ` [PATCH 6/6] fixup! irqchip/irq-bcm7038-l1: Add PM support Florian Fainelli
2019-09-13 19:13   ` Florian Fainelli

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