From 1ada32ede94fc91ff0f3236fcc70ae74dd0c2cb0 Mon Sep 17 00:00:00 2001 From: Andi Shyti Date: Tue, 12 Jul 2016 19:02:11 +0900 Subject: spi: s3c64xx: document the clocks and the clock-name property These two properties were not documented but used in the spi dts. Add the related documentation. Suggested-by: Krzysztof Kozlowski Signed-off-by: Andi Shyti Reviewed-by: Michael Turquette Reviewed-by: Krzysztof Kozlowski Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/spi/spi-samsung.txt | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'Documentation/devicetree/bindings/spi/spi-samsung.txt') diff --git a/Documentation/devicetree/bindings/spi/spi-samsung.txt b/Documentation/devicetree/bindings/spi/spi-samsung.txt index ab4f0a46e859..49028a4f5df1 100644 --- a/Documentation/devicetree/bindings/spi/spi-samsung.txt +++ b/Documentation/devicetree/bindings/spi/spi-samsung.txt @@ -24,6 +24,15 @@ Required SoC Specific Properties: - dma-names: Names for the dma channels. There must be at least one channel named "tx" for transmit and named "rx" for receive. +- clocks: specifies the clock IDs provided to the SPI controller; they are + required for interacting with the controller itself, for synchronizing the bus + and as I/O clock (the latter is required by exynos5433 and exynos7). + +- clock-names: string names of the clocks in the 'clocks' property; for all the + the devices the names must be "spi", "spi_busclkN" (where N is determined by + "samsung,spi-src-clk"), while Exynos5433 should specify a third clock + "spi_ioclk" for the I/O clock. + Required Board Specific Properties: - #address-cells: should be 1. -- cgit v1.2.3