linux-kernel - [PATCH v3 3/7] Documentation: bindings: document the Alpine MSIX driver

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Message-Id: <1455895369-13187-4-git-send-email-antoine.tenart@free-electrons.com>
Date:	Fri, 19 Feb 2016 16:22:45 +0100
From:	Antoine Tenart <antoine.tenart@...e-electrons.com>
To:	tglx@...utronix.de, jason@...edaemon.net, marc.zyngier@....com,
	tsahee@...apurnalabs.com
Cc:	Antoine Tenart <antoine.tenart@...e-electrons.com>,
	rshitrit@...apurnalabs.com, thomas.petazzoni@...e-electrons.com,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 3/7] Documentation: bindings: document the Alpine MSIX driver

Following the addition of the Alpine MSIX driver, this patch adds the
corresponding bindings documentation.

Signed-off-by: Antoine Tenart <antoine.tenart@...e-electrons.com>
Signed-off-by: Tsahee Zidenberg <tsahee@...apurnalabs.com>
---
 .../interrupt-controller/al,alpine-msix.txt        | 26 ++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/al,alpine-msix.txt

diff --git a/Documentation/devicetree/bindings/interrupt-controller/al,alpine-msix.txt b/Documentation/devicetree/bindings/interrupt-controller/al,alpine-msix.txt
new file mode 100644
index 000000000000..f6f1c14bf99b
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/al,alpine-msix.txt
@@ -0,0 +1,26 @@
+Alpine MSIX controller
+
+See arm,gic-v3.txt for SPI and MSI definitions.
+
+Required properties:
+
+- compatible: should be "al,alpine-msix"
+- reg: physical base address and size of the registers
+- interrupt-parent: specifies the parent interrupt controller.
+- interrupt-controller: identifies the node as an interrupt controller
+- msi-controller: identifies the node as an PCI Message Signaled Interrupt
+		  controller
+- al,msi-base-spi: SPI base of the MSI frame
+- al,msi-num-spis: number of SPIs assigned to the MSI frame, relative to SPI0
+
+Example:
+
+msix: msix {
+	compatible = "al,alpine-msix";
+	reg = <0x0 0xfbe00000 0x0 0x100000>;
+	interrupt-parent = <&gic>;
+	interrupt-controller;
+	msi-controller;
+	al,msi-base-spi = <160>;
+	al,msi-num-spis = <160>;
+};
-- 
2.7.1