linux-kernel - [PATCH V2 02/10] dt-bindings: Add Spreadtrum clock binding documentation

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Message-ID: <20170711105627.20526-3-chunyan.zhang@spreadtrum.com>
Date:   Tue, 11 Jul 2017 18:56:19 +0800
From:   Chunyan Zhang <chunyan.zhang@...eadtrum.com>
To:     Stephen Boyd <sboyd@...eaurora.org>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
CC:     <linux-clk@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Arnd Bergmann <arnd@...db.de>, Mark Brown <broonie@...nel.org>,
        Xiaolong Zhang <xiaolong.zhang@...eadtrum.com>,
        Ben Li <ben.li@...eadtrum.com>,
        Orson Zhai <orson.zhai@...eadtrum.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        Chunyan Zhang <chunyan.zhang@...eadtrum.com>
Subject: [PATCH V2 02/10] dt-bindings: Add Spreadtrum clock binding documentation

Introduce a new binding with its documentation for Spreadtrum clock
sub-framework.

Signed-off-by: Chunyan Zhang <chunyan.zhang@...eadtrum.com>
---
 Documentation/devicetree/bindings/clock/sprd.txt | 36 ++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/sprd.txt

diff --git a/Documentation/devicetree/bindings/clock/sprd.txt b/Documentation/devicetree/bindings/clock/sprd.txt
new file mode 100644
index 0000000..c6f3abf
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sprd.txt
@@ -0,0 +1,36 @@
+Spreadtrum Clock Binding
+------------------------
+
+Required properties:
+- compatible: must contain the following compatible:
+	- "sprd,sc9860-clk" (only support SC9860 for the time being)
+
+- reg:	Must contain the registers base address and length.
+	Clocks on most of Spreadtrum's SoCs were designed to locate in a few
+	different address areas, so there would be more than one items under
+	this property.
+
+- #clock-cells: must be 1
+
+Example:
+
+clk: clk {
+	compatible = "sprd,sc9860-clk";
+	#clock-cells = <1>;
+	reg = <0 0x20000000 0 0x400>,
+	      <0 0x20210000 0 0x3000>,
+	      <0 0x402b0000 0 0x4000>,
+	      <0 0x402d0000 0 0x400>,
+	      <0 0x402e0000 0 0x4000>,
+	      <0 0x40400000 0 0x400>,
+	      <0 0x40880000 0 0x400>,
+	      <0 0x415e0000 0 0x400>,
+	      <0 0x60200000 0 0x400>,
+	      <0 0x61000000 0 0x400>,
+	      <0 0x61100000 0 0x3000>,
+	      <0 0x62000000 0 0x4000>,
+	      <0 0x62100000 0 0x4000>,
+	      <0 0x63000000 0 0x400>,
+	      <0 0x63100000 0 0x3000>,
+	      <0 0x70b00000 0 0x3000>;
+};
-- 
2.7.4