mirror of https://github.com/hak5/openwrt.git
82 lines
2.4 KiB
Diff
82 lines
2.4 KiB
Diff
From 1f924faa8b1e4789ecc06ed0dd58ca3487c89012 Mon Sep 17 00:00:00 2001
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From: Stephen Boyd <sboyd@codeaurora.org>
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Date: Tue, 14 Aug 2018 17:42:23 +0530
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Subject: [PATCH 04/12] dt-bindings: clock: Document qcom,hfpll
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Adds bindings document for qcom,hfpll instantiated within
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the Krait processor subsystem as separate register region.
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Reviewed-by: Rob Herring <robh@kernel.org>
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Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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Signed-off-by: Sricharan R <sricharan@codeaurora.org>
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Tested-by: Craig Tatlor <ctatlor97@gmail.com>
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Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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---
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.../devicetree/bindings/clock/qcom,hfpll.txt | 60 +++++++++++++++++++
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1 file changed, 60 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/clock/qcom,hfpll.txt
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/clock/qcom,hfpll.txt
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@@ -0,0 +1,60 @@
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+High-Frequency PLL (HFPLL)
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+
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+PROPERTIES
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+
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+- compatible:
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+ Usage: required
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+ Value type: <string>:
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+ shall contain only one of the following. The generic
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+ compatible "qcom,hfpll" should be also included.
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+
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+ "qcom,hfpll-ipq8064", "qcom,hfpll"
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+ "qcom,hfpll-apq8064", "qcom,hfpll"
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+ "qcom,hfpll-msm8974", "qcom,hfpll"
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+ "qcom,hfpll-msm8960", "qcom,hfpll"
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+
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+- reg:
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+ Usage: required
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+ Value type: <prop-encoded-array>
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+ Definition: address and size of HPLL registers. An optional second
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+ element specifies the address and size of the alias
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+ register region.
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+
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+- clocks:
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+ Usage: required
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+ Value type: <prop-encoded-array>
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+ Definition: reference to the xo clock.
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+
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+- clock-names:
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+ Usage: required
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+ Value type: <stringlist>
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+ Definition: must be "xo".
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+
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+- clock-output-names:
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+ Usage: required
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+ Value type: <string>
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+ Definition: Name of the PLL. Typically hfpllX where X is a CPU number
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+ starting at 0. Otherwise hfpll_Y where Y is more specific
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+ such as "l2".
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+
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+Example:
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+
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+1) An HFPLL for the L2 cache.
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+
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+ clock-controller@f9016000 {
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+ compatible = "qcom,hfpll-ipq8064", "qcom,hfpll";
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+ reg = <0xf9016000 0x30>;
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+ clocks = <&xo_board>;
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+ clock-names = "xo";
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+ clock-output-names = "hfpll_l2";
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+ };
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+
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+2) An HFPLL for CPU0. This HFPLL has the alias register region.
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+
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+ clock-controller@f908a000 {
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+ compatible = "qcom,hfpll-ipq8064", "qcom,hfpll";
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+ reg = <0xf908a000 0x30>, <0xf900a000 0x30>;
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+ clocks = <&xo_board>;
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+ clock-names = "xo";
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+ clock-output-names = "hfpll0";
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+ };
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