target/linux/mediatek/patches/0025-dt-bindings-ARM-Mediatek-Document-devicetree-binding.patch

   1 From a6de66d3cf5add25f2b8913332117f3334db506e Mon Sep 17 00:00:00 2001
   2 From: Leilk Liu <leilk.liu@mediatek.com>
   3 Date: Fri, 8 May 2015 16:55:41 +0800
   4 Subject: [PATCH 25/76] dt-bindings: ARM: Mediatek: Document devicetree
   5  bindings for spi bus
   6
   7 Signed-off-by: Leilk Liu <leilk.liu@mediatek.com>
   8 ---
   9  .../devicetree/bindings/spi/spi-mt65xx.txt         |   32 ++++++++++++++++++++
  10  1 file changed, 32 insertions(+)
  11  create mode 100644 Documentation/devicetree/bindings/spi/spi-mt65xx.txt
  12
  13 --- /dev/null
  14 +++ b/Documentation/devicetree/bindings/spi/spi-mt65xx.txt
  15 @@ -0,0 +1,32 @@
  16 +MTK SPI device
  17 +
  18 +Required properties:
  19 +- compatible: should be one of the following.
  20 +    - mediatek,mt8173-spi: for mt8173 platforms
  21 +    - mediatek,mt8135-spi: for mt8135 platforms
  22 +    - mediatek,mt6589-spi: for mt6589 platforms
  23 +
  24 +- reg: Address and length of the register set for the device
  25 +
  26 +- interrupts: Should contain spi interrupt
  27 +
  28 +- clock-names: tuple listing input clock names.
  29 +       Required elements: "main"
  30 +
  31 +- clocks: phandles to input clocks.
  32 +
  33 +- pad-select: should specify spi pad used, only required for MT8173.
  34 +       This value should be 0~3.
  35 +
  36 +Example:
  37 +
  38 +- SoC Specific Portion:
  39 +spi: spi@1100a000 {
  40 +       compatible = "mediatek,mt8173-spi";
  41 +       reg = <0 0x1100a000 0 0x1000>;
  42 +       interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_LOW>;
  43 +       clocks = <&pericfg PERI_SPI0>;
  44 +       clock-names = "main";
  45 +       pad-select = <1>;
  46 +       status = "disabled";
  47 +};