linux-kernel - [LINUX PATCH 1/3] dt-bindings: spi: Add device tree binding documentation for Zynq QSPI controller

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Date:   Thu, 28 Mar 2019 16:46:00 +0530
From:   Naga Sureshkumar Relli <naga.sureshkumar.relli@...inx.com>
To:     <broonie@...nel.org>, <bbrezillon@...nel.org>, <robh@...nel.org>
CC:     <michals@...inx.com>, <mark.rutland@....com>,
        <horms+renesas@...ge.net.au>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-spi@...r.kernel.org>,
        <nagasuresh12@...il.com>,
        Naga Sureshkumar Relli <naga.sureshkumar.relli@...inx.com>
Subject: [LINUX PATCH 1/3] dt-bindings: spi: Add device tree binding documentation for Zynq QSPI controller

This patch adds the dts binding document for Zynq SOC QSPI controller.

Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Naga Sureshkumar Relli <naga.sureshkumar.relli@...inx.com>
---
 .../devicetree/bindings/spi/spi-zynq-qspi.txt      | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/spi-zynq-qspi.txt

diff --git a/Documentation/devicetree/bindings/spi/spi-zynq-qspi.txt b/Documentation/devicetree/bindings/spi/spi-zynq-qspi.txt
new file mode 100644
index 0000000..16b734a
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-zynq-qspi.txt
@@ -0,0 +1,25 @@
+Xilinx Zynq QSPI controller Device Tree Bindings
+-------------------------------------------------------------------
+
+Required properties:
+- compatible		: Should be "xlnx,zynq-qspi-1.0".
+- reg			: Physical base address and size of QSPI registers map.
+- interrupts		: Property with a value describing the interrupt
+			  number.
+- clock-names		: List of input clock names - "ref_clk", "pclk"
+			  (See clock bindings for details).
+- clocks		: Clock phandles (see clock bindings for details).
+
+Optional properties:
+- num-cs		: Number of chip selects used.
+
+Example:
+	qspi: spi@...0d000 {
+		compatible = "xlnx,zynq-qspi-1.0";
+		reg = <0xe000d000 0x1000>;
+		interrupt-parent = <&intc>;
+		interrupts = <0 19 4>;
+		clock-names = "ref_clk", "pclk";
+		clocks = <&clkc 10>, <&clkc 43>;
+		num-cs = <1>;
+	};
-- 
2.7.4