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+Binding for MTK SPI controller
+
+Required properties:
+- compatible: should be one of the following.
+ - mediatek,mt2701-spi: for mt2701 platforms
+ - mediatek,mt2712-spi: for mt2712 platforms
+ - mediatek,mt6589-spi: for mt6589 platforms
+ - mediatek,mt6765-spi: for mt6765 platforms
+ - mediatek,mt7622-spi: for mt7622 platforms
+ - "mediatek,mt7629-spi", "mediatek,mt7622-spi": for mt7629 platforms
+ - mediatek,mt8135-spi: for mt8135 platforms
+ - mediatek,mt8173-spi: for mt8173 platforms
+ - mediatek,mt8183-spi: for mt8183 platforms
+ - "mediatek,mt8192-spi", "mediatek,mt6765-spi": for mt8192 platforms
+ - "mediatek,mt8516-spi", "mediatek,mt2712-spi": for mt8516 platforms
+
+- #address-cells: should be 1.
+
+- #size-cells: should be 0.
+
+- reg: Address and length of the register set for the device
+
+- interrupts: Should contain spi interrupt
+
+- clocks: phandles to input clocks.
+ The first should be one of the following. It's PLL.
+ - <&clk26m>: specify parent clock 26MHZ.
+ - <&topckgen CLK_TOP_SYSPLL3_D2>: specify parent clock 109MHZ.
+ It's the default one.
+ - <&topckgen CLK_TOP_SYSPLL4_D2>: specify parent clock 78MHZ.
+ - <&topckgen CLK_TOP_UNIVPLL2_D4>: specify parent clock 104MHZ.
+ - <&topckgen CLK_TOP_UNIVPLL1_D8>: specify parent clock 78MHZ.
+ The second should be <&topckgen CLK_TOP_SPI_SEL>. It's clock mux.
+ The third is <&pericfg CLK_PERI_SPI0>. It's clock gate.
+
+- clock-names: shall be "parent-clk" for the parent clock, "sel-clk" for the
+ muxes clock, and "spi-clk" for the clock gate.
+
+Optional properties:
+-cs-gpios: see spi-bus.txt.
+
+- mediatek,pad-select: specify which pins group(ck/mi/mo/cs) spi
+ controller used. This is an array, the element value should be 0~3,
+ only required for MT8173.
+ 0: specify GPIO69,70,71,72 for spi pins.
+ 1: specify GPIO102,103,104,105 for spi pins.
+ 2: specify GPIO128,129,130,131 for spi pins.
+ 3: specify GPIO5,6,7,8 for spi pins.
+
+Example:
+
+- SoC Specific Portion:
+spi: spi@1100a000 {
+ compatible = "mediatek,mt8173-spi";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0 0x1100a000 0 0x1000>;
+ interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&topckgen CLK_TOP_SYSPLL3_D2>,
+ <&topckgen CLK_TOP_SPI_SEL>,
+ <&pericfg CLK_PERI_SPI0>;
+ clock-names = "parent-clk", "sel-clk", "spi-clk";
+ cs-gpios = <&pio 105 GPIO_ACTIVE_LOW>, <&pio 72 GPIO_ACTIVE_LOW>;
+ mediatek,pad-select = <1>, <0>;
+};