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From a6de66d3cf5add25f2b8913332117f3334db506e Mon Sep 17 00:00:00 2001
From: Leilk Liu <leilk.liu@mediatek.com>
Date: Fri, 8 May 2015 16:55:41 +0800
Subject: [PATCH 25/76] dt-bindings: ARM: Mediatek: Document devicetree
bindings for spi bus
Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
---
.../devicetree/bindings/spi/spi-mt65xx.txt | 32 ++++++++++++++++++++
1 file changed, 32 insertions(+)
create mode 100644 Documentation/devicetree/bindings/spi/spi-mt65xx.txt
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-mt65xx.txt
@@ -0,0 +1,32 @@
+MTK SPI device
+
+Required properties:
+- compatible: should be one of the following.
+ - mediatek,mt8173-spi: for mt8173 platforms
+ - mediatek,mt8135-spi: for mt8135 platforms
+ - mediatek,mt6589-spi: for mt6589 platforms
+
+- reg: Address and length of the register set for the device
+
+- interrupts: Should contain spi interrupt
+
+- clock-names: tuple listing input clock names.
+ Required elements: "main"
+
+- clocks: phandles to input clocks.
+
+- pad-select: should specify spi pad used, only required for MT8173.
+ This value should be 0~3.
+
+Example:
+
+- SoC Specific Portion:
+spi: spi@1100a000 {
+ compatible = "mediatek,mt8173-spi";
+ reg = <0 0x1100a000 0 0x1000>;
+ interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&pericfg PERI_SPI0>;
+ clock-names = "main";
+ pad-select = <1>;
+ status = "disabled";
+};
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