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authorJoel Stanley <joel@jms.id.au>2019-11-08 08:19:42 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-11-08 13:28:20 +0300
commitcccaa160c37639ea7d71c59a56a276264110ed62 (patch)
tree6b1c31100f3a7b18c1ad39e792bfd6c8be868b32 /Documentation/devicetree/bindings/fsi
parent8bcd06d0cb3d991b45231cf22c467759b11f18aa (diff)
downloadlinux-cccaa160c37639ea7d71c59a56a276264110ed62.tar.xz
dt-bindings: fsi: Add description of FSI master
This describes the FSI master present in the AST2600. Signed-off-by: Joel Stanley <joel@jms.id.au> Acked-by: Alistair Popple <alistair@popple.id.au> Link: https://lore.kernel.org/r/20191108051945.7109-9-joel@jms.id.au Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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diff --git a/Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt b/Documentation/devicetree/bindings/fsi/fsi-master-aspeed.txt
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+Device-tree bindings for AST2600 FSI master
+-------------------------------------------
+
+The AST2600 contains two identical FSI masters. They share a clock and have a
+separate interrupt line and output pins.
+
+Required properties:
+ - compatible: "aspeed,ast2600-fsi-master"
+ - reg: base address and length
+ - clocks: phandle and clock number
+ - interrupts: platform dependent interrupt description
+ - pinctrl-0: phandle to pinctrl node
+ - pinctrl-names: pinctrl state
+
+Examples:
+
+ fsi-master {
+ compatible = "aspeed,ast2600-fsi-master", "fsi-master";
+ reg = <0x1e79b000 0x94>;
+ interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_fsi1_default>;
+ clocks = <&syscon ASPEED_CLK_GATE_FSICLK>;
+ };