Thread (20 messages) 20 messages, 3 authors, 2018-03-06
STALE3007d REVIEWED: 7 (7M)
Revisions (9)
  1. v4 [diff vs current]
  2. v4 [diff vs current]
  3. v5 [diff vs current]
  4. v7 [diff vs current]
  5. v8 current
  6. v9 [diff vs current]
  7. v10 [diff vs current]
  8. v11 [diff vs current]
  9. v12 [diff vs current]

[PATCH v8 05/15] dt-bindings: clock: Document qcom,hfpll

From: Sricharan R <hidden>
Date: 2018-02-27 14:12:47
Also in: linux-arm-kernel, linux-arm-msm, linux-clk, linux-pm, lkml
Subsystem: arm/qualcomm mailing list, common clk framework, open firmware and flattened device tree bindings, qualcomm clock drivers, the rest · Maintainers: Michael Turquette, Stephen Boyd, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Bjorn Andersson, Linus Torvalds

From: Stephen Boyd <redacted>

Adds bindings document for qcom,hfpll instantiated within
the Krait processor subsystem as separate register region.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <redacted>
---
 .../devicetree/bindings/clock/qcom,hfpll.txt       | 46 ++++++++++++++++++++++
 1 file changed, 46 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..771cb0a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,hfpll.txt
@@ -0,0 +1,46 @@
+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.
+
+- 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@f9016000 {
+		compatible = "qcom,hfpll-ipq8064", "qcom,hfpll";
+		reg = <0xf9016000 0x30>;
+		clock-output-names = "hfpll_l2";
+	};
+
+2) An HFPLL for CPU0. This HFPLL has the alias register region.
+
+	clock-controller@f908a000 {
+		compatible = "qcom,hfpll-ipq8064", "qcom,hfpll";
+		reg = <0xf908a000 0x30>, <0xf900a000 0x30>;
+		clock-output-names = "hfpll0";
+	};
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help