From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lee Jones Subject: [PATCH v2 2/4] spi: st: Provide Device Tree binding documentation Date: Tue, 2 Dec 2014 15:40:42 +0000 Message-ID: <1417534844-25080-3-git-send-email-lee.jones@linaro.org> References: <1417534844-25080-1-git-send-email-lee.jones@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1417534844-25080-1-git-send-email-lee.jones@linaro.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org, broonie@kernel.org, lee.jones@linaro.org, kernel@stlinux.com, linux-spi@vger.kernel.org List-Id: devicetree@vger.kernel.org This patch adds DT documentation for the SPI portion of ST's SSC device. Signed-off-by: Lee Jones --- Documentation/devicetree/bindings/spi/spi-st.txt | 40 ++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-st.txt diff --git a/Documentation/devicetree/bindings/spi/spi-st.txt b/Documentation/devicetree/bindings/spi/spi-st.txt new file mode 100644 index 0000000..fe54959 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-st.txt @@ -0,0 +1,40 @@ +STMicroelectronics SSC (SPI) Controller +--------------------------------------- + +Required properties: +- compatible : "st,comms-ssc4-spi" +- reg : Offset and length of the device's register set +- interrupts : The interrupt specifier +- clock-names : Must contain "ssc" +- clocks : Must contain an entry for each name in clock-names + See ../clk/* +- pinctrl-names : Uses "default", can use "sleep" if provided + See ../pinctrl/pinctrl-binding.txt + +Optional properties: +- cs-gpios : List of GPIO chip selects + See ../spi/spi-bus.txt + +Child nodes represent devices on the SPI bus + See ../spi/spi-bus.txt + +Example: + spi@9840000 { + compatible = "st,comms-ssc4-spi"; + reg = <0x9840000 0x110>; + interrupts = ; + clocks = <&clk_s_c0_flexgen CLK_EXT2F_A9>; + clock-names = "ssc"; + pinctrl-0 = <&pinctrl_spi0_default>; + pinctrl-names = "default"; + cs-gpios = <&pio17 5 0>; + #address-cells = <1>; + #size-cells = <0>; + + st95hf@0{ + compatible = "st,st95hf"; + reg = <0>; + spi-max-frequency = <1000000>; + interrupts = <2 IRQ_TYPE_EDGE_FALLING>; + }; + }; -- 1.9.1