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Message-Id: <1534167367-17545-5-git-send-email-sricharan@codeaurora.org>
Date: Mon, 13 Aug 2018 19:05:57 +0530
From: Sricharan R <sricharan@...eaurora.org>
To: mark.rutland@....com, robh@...nel.org, sudeep.holla@....com,
linux@....linux.org.uk, ctatlor97@...il.com, rjw@...ysocki.net,
viresh.kumar@...aro.org, mturquette@...libre.com,
linux-pm@...r.kernel.org, sboyd@...eaurora.org,
linux@...linux.org.uk, thierry.escande@...aro.org,
linux-kernel@...r.kernel.org, david.brown@...aro.org,
devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
andy.gross@...aro.org, linux-soc@...r.kernel.org,
linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
niklas.cassel@...aro.org
Cc: sricharan@...eaurora.org
Subject: [PATCH 04/14] dt-bindings: clock: Document qcom,hfpll
From: Stephen Boyd <sboyd@...eaurora.org>
Adds bindings document for qcom,hfpll instantiated within
the Krait processor subsystem as separate register region.
Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
---
.../devicetree/bindings/clock/qcom,hfpll.txt | 60 ++++++++++++++++++++++
1 file changed, 60 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/qcom,hfpll.txt
diff --git a/Documentation/devicetree/bindings/clock/qcom,hfpll.txt b/Documentation/devicetree/bindings/clock/qcom,hfpll.txt
new file mode 100644
index 0000000..ec02a02
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,hfpll.txt
@@ -0,0 +1,60 @@
+High-Frequency PLL (HFPLL)
+
+PROPERTIES
+
+- compatible:
+ Usage: required
+ Value type: <string>:
+ shall contain only one of the following. The generic
+ compatible "qcom,hfpll" should be also included.
+
+ "qcom,hfpll-ipq8064", "qcom,hfpll"
+ "qcom,hfpll-apq8064", "qcom,hfpll"
+ "qcom,hfpll-msm8974", "qcom,hfpll"
+ "qcom,hfpll-msm8960", "qcom,hfpll"
+
+- reg:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: address and size of HPLL registers. An optional second
+ element specifies the address and size of the alias
+ register region.
+
+- clocks:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: reference to the xo clock.
+
+- clock-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must be "xo".
+
+- clock-output-names:
+ Usage: required
+ Value type: <string>
+ Definition: Name of the PLL. Typically hfpllX where X is a CPU number
+ starting at 0. Otherwise hfpll_Y where Y is more specific
+ such as "l2".
+
+Example:
+
+1) An HFPLL for the L2 cache.
+
+ clock-controller@...16000 {
+ compatible = "qcom,hfpll-ipq8064", "qcom,hfpll";
+ reg = <0xf9016000 0x30>;
+ clocks = <&xo_board>;
+ clock-names = "xo";
+ clock-output-names = "hfpll_l2";
+ };
+
+2) An HFPLL for CPU0. This HFPLL has the alias register region.
+
+ clock-controller@...8a000 {
+ compatible = "qcom,hfpll-ipq8064", "qcom,hfpll";
+ reg = <0xf908a000 0x30>, <0xf900a000 0x30>;
+ clocks = <&xo_board>;
+ clock-names = "xo";
+ clock-output-names = "hfpll0";
+ };
--
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