From: chunyan.zhang@spreadtrum.com (Chunyan Zhang)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V7 08/12] dt-bindings: Add Spreadtrum clock binding documentation
Date: Thu, 7 Dec 2017 20:57:11 +0800 [thread overview]
Message-ID: <20171207125715.16160-9-chunyan.zhang@spreadtrum.com> (raw)
In-Reply-To: <20171207125715.16160-1-chunyan.zhang@spreadtrum.com>
Introduce a new binding with its documentation for Spreadtrum clock
sub-framework.
Signed-off-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Acked-by: Rob Herring <robh@kernel.org>
---
Documentation/devicetree/bindings/clock/sprd.txt | 63 ++++++++++++++++++++++++
1 file changed, 63 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..e9d179e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sprd.txt
@@ -0,0 +1,63 @@
+Spreadtrum Clock Binding
+------------------------
+
+Required properties:
+- compatible: should contain the following compatible strings:
+ - "sprd,sc9860-pmu-gate"
+ - "sprd,sc9860-pll"
+ - "sprd,sc9860-ap-clk"
+ - "sprd,sc9860-aon-prediv"
+ - "sprd,sc9860-apahb-gate"
+ - "sprd,sc9860-aon-gate"
+ - "sprd,sc9860-aonsecure-clk"
+ - "sprd,sc9860-agcp-gate"
+ - "sprd,sc9860-gpu-clk"
+ - "sprd,sc9860-vsp-clk"
+ - "sprd,sc9860-vsp-gate"
+ - "sprd,sc9860-cam-clk"
+ - "sprd,sc9860-cam-gate"
+ - "sprd,sc9860-disp-clk"
+ - "sprd,sc9860-disp-gate"
+ - "sprd,sc9860-apapb-gate"
+
+- #clock-cells: must be 1
+
+- clocks : Should be the input parent clock(s) phandle for the clock, this
+ property here just simply shows which clock group the clocks'
+ parents are in, since each clk node would represent many clocks
+ which are defined in the driver. The detailed dependency
+ relationship (i.e. how many parents and which are the parents)
+ are implemented in driver code.
+
+Optional properties:
+
+- reg: Contain the registers base address and length. It must be configured
+ only if no 'sprd,syscon' under the node.
+
+- sprd,syscon: phandle to the syscon which is in the same address area with
+ the clock, and so we can get regmap for the clocks from the
+ syscon device.
+
+Example:
+
+ pmu_gate: pmu-gate {
+ compatible = "sprd,sc9860-pmu-gate";
+ sprd,syscon = <&pmu_regs>;
+ clocks = <&ext_26m>;
+ #clock-cells = <1>;
+ };
+
+ pll: pll {
+ compatible = "sprd,sc9860-pll";
+ sprd,syscon = <&ana_regs>;
+ clocks = <&pmu_gate 0>;
+ #clock-cells = <1>;
+ };
+
+ ap_clk: clock-controller at 20000000 {
+ compatible = "sprd,sc9860-ap-clk";
+ reg = <0 0x20000000 0 0x400>;
+ clocks = <&ext_26m>, <&pll 0>,
+ <&pmu_gate 0>;
+ #clock-cells = <1>;
+ };
--
2.7.4
next prev parent reply other threads:[~2017-12-07 12:57 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-07 12:57 [PATCH V7 00/12] add clock driver for Spreadtrum platforms Chunyan Zhang
2017-12-07 12:57 ` [PATCH V7 01/12] drivers: move clock common macros out from vendor directories Chunyan Zhang
2017-12-21 23:02 ` Stephen Boyd
2017-12-07 12:57 ` [PATCH V7 02/12] clk: sprd: Add common infrastructure Chunyan Zhang
2017-12-07 13:25 ` Philippe Ombredanne
2017-12-21 23:02 ` Stephen Boyd
2017-12-07 12:57 ` [PATCH V7 03/12] clk: sprd: add gate clock support Chunyan Zhang
2017-12-21 23:02 ` Stephen Boyd
2017-12-07 12:57 ` [PATCH V7 04/12] clk: sprd: add mux " Chunyan Zhang
2017-12-21 23:02 ` Stephen Boyd
2017-12-07 12:57 ` [PATCH V7 05/12] clk: sprd: add divider " Chunyan Zhang
2017-12-21 23:02 ` Stephen Boyd
2017-12-07 12:57 ` [PATCH V7 06/12] clk: sprd: add composite " Chunyan Zhang
2017-12-21 23:02 ` Stephen Boyd
2017-12-07 12:57 ` [PATCH V7 07/12] clk: sprd: add adjustable pll support Chunyan Zhang
2017-12-21 23:02 ` Stephen Boyd
2017-12-07 12:57 ` Chunyan Zhang [this message]
2017-12-21 23:02 ` [PATCH V7 08/12] dt-bindings: Add Spreadtrum clock binding documentation Stephen Boyd
2017-12-07 12:57 ` [PATCH V7 09/12] clk: sprd: Add dt-bindings include file for SC9860 Chunyan Zhang
2017-12-21 23:02 ` Stephen Boyd
2017-12-07 12:57 ` [PATCH V7 10/12] clk: sprd: add clocks support " Chunyan Zhang
2017-12-21 23:03 ` Stephen Boyd
2017-12-07 12:57 ` [PATCH V7 11/12] arm64: dts: add syscon for whale2 platform Chunyan Zhang
2017-12-21 23:03 ` Stephen Boyd
2017-12-22 5:30 ` Chunyan Zhang
2018-01-04 16:51 ` Arnd Bergmann
2017-12-07 12:57 ` [PATCH V7 12/12] arm64: dts: add clocks for SC9860 Chunyan Zhang
2017-12-22 5:31 ` Chunyan Zhang
2018-01-04 21:34 ` Arnd Bergmann
2018-01-04 23:01 ` Arnd Bergmann
2018-01-05 5:27 ` Chunyan Zhang
2017-12-18 9:46 ` [PATCH V7 00/12] add clock driver for Spreadtrum platforms Chunyan Zhang
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