linux-kernel - [PATCH V5 23/30] dt-bindings: interrupt-controller: C-SKY SMP intc

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Message-Id: <57888913907d6c22b23425ed9d4e5a79be5b2eff.1537789737.git.ren_guo@c-sky.com>
Date:   Tue, 25 Sep 2018 07:39:26 +0800
From:   Guo Ren <ren_guo@...ky.com>
To:     akpm@...ux-foundation.org, arnd@...db.de,
        daniel.lezcano@...aro.org, davem@...emloft.net,
        gregkh@...uxfoundation.org, jason@...edaemon.net,
        marc.zyngier@....com, mark.rutland@....com,
        mchehab+samsung@...nel.org, peterz@...radead.org, robh@...nel.org,
        robh+dt@...nel.org, tglx@...utronix.de
Cc:     linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        devicetree@...r.kernel.org, green.hu@...il.com, palmer@...ive.com,
        Guo Ren <ren_guo@...ky.com>
Subject: [PATCH V5 23/30] dt-bindings: interrupt-controller: C-SKY SMP intc

 - Dt-bindings doc about C-SKY Multi-processors interrupt controller.

Signed-off-by: Guo Ren <ren_guo@...ky.com>
---
 .../bindings/interrupt-controller/csky,mpintc.txt  | 40 ++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt

diff --git a/Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt b/Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt
new file mode 100644
index 0000000..9cdad74
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/csky,mpintc.txt
@@ -0,0 +1,40 @@
+===========================================
+C-SKY Multi-processors Interrupt Controller
+===========================================
+
+C-SKY Multi-processors Interrupt Controller is designed for ck807/ck810/ck860
+SMP soc, and it also could be used in non-SMP system.
+
+Interrupt number definition:
+
+  0-15  : software irq, and we use 15 as our IPI_IRQ.
+ 16-31  : private  irq, and we use 16 as the co-processor timer.
+ 31-1024: common irq for soc ip.
+
+=============================
+intc node bindings definition
+=============================
+
+	Description: Describes SMP interrupt controller
+
+	PROPERTIES
+
+	- compatible
+		Usage: required
+		Value type: <string>
+		Definition: must be "csky,mpintc"
+	- interrupt-cells
+		Usage: required
+		Value type: <u32>
+		Definition: must be <1>
+	- interrupt-controller:
+		Usage: required
+
+Examples:
+---------
+
+	intc: interrupt-controller {
+		compatible = "csky,mpintc";
+		#interrupt-cells = <1>;
+		interrupt-controller;
+	};
-- 
2.7.4