linux-kernel - [PATCH v12 1/3] Documentation: Add device tree binding for Goldfish PIC driver

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Date:   Fri, 29 Dec 2017 16:41:45 +0100
From:   Aleksandar Markovic <aleksandar.markovic@...rk.com>
To:     linux-mips@...ux-mips.org
Cc:     Miodrag Dinic <miodrag.dinic@...s.com>,
        Goran Ferenc <goran.ferenc@...s.com>,
        Aleksandar Markovic <aleksandar.markovic@...s.com>,
        "David S. Miller" <davem@...emloft.net>,
        devicetree@...r.kernel.org, Douglas Leung <douglas.leung@...s.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        James Hogan <james.hogan@...s.com>,
        Jason Cooper <jason@...edaemon.net>,
        linux-kernel@...r.kernel.org, Marc Zyngier <marc.zyngier@....com>,
        Mark Rutland <mark.rutland@....com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Paul Burton <paul.burton@...s.com>,
        Petar Jovanovic <petar.jovanovic@...s.com>,
        Raghu Gandham <raghu.gandham@...s.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Rob Herring <robh+dt@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH v12 1/3] Documentation: Add device tree binding for Goldfish PIC driver

From: Miodrag Dinic <miodrag.dinic@...s.com>

Add documentation for DT binding of Goldfish PIC driver. The compatible
string used by OS for binding the driver is "google,goldfish-pic".

Signed-off-by: Miodrag Dinic <miodrag.dinic@...s.com>
Signed-off-by: Goran Ferenc <goran.ferenc@...s.com>
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@...s.com>
Acked-by: Rob Herring <robh@...nel.org>
---
 .../interrupt-controller/google,goldfish-pic.txt   | 30 ++++++++++++++++++++++
 MAINTAINERS                                        |  5 ++++
 2 files changed, 35 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/google,goldfish-pic.txt

diff --git a/Documentation/devicetree/bindings/interrupt-controller/google,goldfish-pic.txt b/Documentation/devicetree/bindings/interrupt-controller/google,goldfish-pic.txt
new file mode 100644
index 0000000..35f7527
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/google,goldfish-pic.txt
@@ -0,0 +1,30 @@
+Android Goldfish PIC
+
+Android Goldfish programmable interrupt device used by Android
+emulator.
+
+Required properties:
+
+- compatible : should contain "google,goldfish-pic"
+- reg        : <registers mapping>
+- interrupts : <interrupt mapping>
+
+Example for mips when used in cascade mode:
+
+        cpuintc {
+                #interrupt-cells = <0x1>;
+                #address-cells = <0>;
+                interrupt-controller;
+                compatible = "mti,cpu-interrupt-controller";
+        };
+
+        interrupt-controller@...00000 {
+                compatible = "google,goldfish-pic";
+                reg = <0x1f000000 0x1000>;
+
+                interrupt-controller;
+                #interrupt-cells = <0x1>;
+
+                interrupt-parent = <&cpuintc>;
+                interrupts = <0x2>;
+        };
diff --git a/MAINTAINERS b/MAINTAINERS
index a6e86e2..7152b90 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -867,6 +867,11 @@ S:	Supported
 F:	drivers/android/
 F:	drivers/staging/android/
 
+ANDROID GOLDFISH PIC DRIVER
+M:	Miodrag Dinic <miodrag.dinic@...s.com>
+S:	Supported
+F:	Documentation/devicetree/bindings/interrupt-controller/google,goldfish-pic.txt
+
 ANDROID GOLDFISH RTC DRIVER
 M:	Miodrag Dinic <miodrag.dinic@...s.com>
 S:	Supported
-- 
2.7.4