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spi: add DT bindings for UniPhier SPI controller 

Add DT bindings for SPI controller implemented in UniPhier SoCs.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Keiji Hayashibara <hayashibara.keiji@socionext.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Kunihiko Hayashi 2018-08-01 16:29:11 +09:00 committed by Mark Brown
parent f09757ab40
commit 4dcd5c2781
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Documentation/devicetree/bindings/spi/spi-uniphier.txt 100644
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Socionext UniPhier SPI controller driver
UniPhier SoCs have SCSSI which supports SPI single channel.
Required properties:
- compatible: should be "socionext,uniphier-scssi"
- reg: address and length of the spi master registers
- #address-cells: must be <1>, see spi-bus.txt
- #size-cells: must be <0>, see spi-bus.txt
- clocks: A phandle to the clock for the device.
- resets: A phandle to the reset control for the device.
Example:
spi0: spi@54006000 {
compatible = "socionext,uniphier-scssi";
reg = <0x54006000 0x100>;
#address-cells = <1>;
#size-cells = <0>;
clocks = <&peri_clk 11>;
resets = <&peri_rst 11>;
};