From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Andi Shyti To: Rob Herring , Mark Rutland , Kukjin Kim , Krzysztof Kozlowski , Mark Brown , Sylwester Nawrocki , Tomasz Figa , Michael Turquette , Stephen Boyd Cc: Chanwoo Choi , Jaehoon Chung , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-spi@vger.kernel.org, Andi Shyti , Andi Shyti Subject: [PATCH v3] bindings: spi-samsung: document the clocks and the clock-name property Date: Mon, 11 Jul 2016 11:36:21 +0900 Message-id: <1468204581-16873-1-git-send-email-andi.shyti@samsung.com> In-reply-to: <20160708203207.GB25980@kozik-lap> References: <20160708203207.GB25980@kozik-lap> List-ID: 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 --- Hi, Changelog related only to this patch: V1 -> V2: [new] added the clocks and clock-name documentation in the bindings V2 -> V3: reworded the 'clock-names' as suggested by Krzysztof, added Mike's and Krzysztof's review and Krzysztof's suggested-by. Thanks, Andi Documentation/devicetree/bindings/spi/spi-samsung.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/spi-samsung.txt b/Documentation/devicetree/bindings/spi/spi-samsung.txt index 57d5539..f45c6eb 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. -- 2.8.1