linux-kernel - [PATCH v3 01/10] dt-bindings: add documentation of xilinx clocking wizard

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Date:   Thu, 28 Nov 2019 12:06:08 +0530
From:   shubhrajyoti.datta@...il.com
To:     linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        devel@...verdev.osuosl.org
Cc:     gregkh@...uxfoundation.org, mturquette@...libre.com,
        sboyd@...nel.org, robh+dt@...nel.org, mark.rutland@....com,
        shubhrajyoti.datta@...il.com, devicetree@...r.kernel.org,
        soren.brinkmann@...inx.com,
        Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
Subject: [PATCH v3 01/10] dt-bindings: add documentation of xilinx clocking wizard

From: Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>

Add the devicetree binding for the xilinx clocking wizard.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@...inx.com>
---
 .../bindings/clock/xlnx,clocking-wizard.txt        | 32 ++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.txt

diff --git a/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.txt b/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.txt
new file mode 100644
index 0000000..aedac84
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.txt
@@ -0,0 +1,32 @@
+Binding for Xilinx Clocking Wizard IP Core
+
+This binding uses the common clock binding[1]. Details about the devices can be
+found in the product guide[2].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+[2] Clocking Wizard Product Guide
+http://www.xilinx.com/support/documentation/ip_documentation/clk_wiz/v5_1/pg065-clk-wiz.pdf
+
+Required properties:
+ - compatible: Must be 'xlnx,clocking-wizard'
+ - #clock-cells: Number of cells in a clock specifier. Should be 1
+ - reg: Base and size of the cores register space
+ - clocks: Handle to input clock
+ - clock-names: Tuple containing 'clk_in1' and 's_axi_aclk'
+ - clock-output-names: Names for the output clocks
+
+Optional properties:
+ - speed-grade: Speed grade of the device (valid values are 1..3)
+
+Example:
+	clock-generator@...40000 {
+		#clock-cells = <1>;
+		reg = <0x40040000 0x1000>;
+		compatible = "xlnx,clocking-wizard";
+		speed-grade = <1>;
+		clock-names = "clk_in1", "s_axi_aclk";
+		clocks = <&clkc 15>, <&clkc 15>;
+		clock-output-names = "clk_out0", "clk_out1", "clk_out2",
+				     "clk_out3", "clk_out4", "clk_out5",
+				     "clk_out6", "clk_out7";
+	};
-- 
2.1.1