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dt-bindings: clock: qcom,hfpll: Convert to YAML

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Convert the .txt documentation to .yaml with some adjustments.

* APQ8064/IPQ8064/MSM8960 compatibles are dropped since their HFPLLs are
  a part of GCC so there is no need for a separate compat entry.
* Change the MSM8974 compatible to follow the updated naming schema.
  Theis compatible is not used upstream yet.
* Add qcs404-hfpll. QCS404 currently uses qcom,hfpll. Mark that as
  deprecated since every SoC appears to need different driver data so
  "qcom,hfpll" makes no sense to keep

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240218-hfpll-yaml-v2-1-31543e0d6261@z3ntu.xyz
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Luca Weiss 2024-02-18 21:57:25 +01:00 committed by Bjorn Andersson
parent 3b98548917
commit 849ed9d414
2 changed files with 69 additions and 63 deletions
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63
Documentation/devicetree/bindings/clock/qcom,hfpll.txt
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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"
"qcom,msm8976-hfpll-a53", "qcom,hfpll"
"qcom,msm8976-hfpll-a72", "qcom,hfpll"
"qcom,msm8976-hfpll-cci", "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@f9016000 {
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@f908a000 {
compatible = "qcom,hfpll-ipq8064", "qcom,hfpll";
reg = <0xf908a000 0x30>, <0xf900a000 0x30>;
clocks = <&xo_board>;
clock-names = "xo";
clock-output-names = "hfpll0";
};

69
Documentation/devicetree/bindings/clock/qcom,hfpll.yaml Normal file
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/qcom,hfpll.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm High-Frequency PLL
maintainers:
- Bjorn Andersson <andersson@kernel.org>
description:
The HFPLL is used as CPU PLL on various Qualcomm SoCs.
properties:
compatible:
oneOf:
- enum:
- qcom,msm8974-hfpll
- qcom,msm8976-hfpll-a53
- qcom,msm8976-hfpll-a72
- qcom,msm8976-hfpll-cci
- qcom,qcs404-hfpll
- const: qcom,hfpll
deprecated: true
reg:
items:
- description: HFPLL registers
- description: Alias register region
minItems: 1
'#clock-cells':
const: 0
clocks:
items:
- description: board XO clock
clock-names:
items:
- const: xo
clock-output-names:
description:
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".
maxItems: 1
required:
- compatible
- reg
- '#clock-cells'
- clocks
- clock-names
- clock-output-names
additionalProperties: false
examples:
- |
clock-controller@f908a000 {
compatible = "qcom,msm8974-hfpll";
reg = <0xf908a000 0x30>, <0xf900a000 0x30>;
#clock-cells = <0>;
clock-output-names = "hfpll0";
clocks = <&xo_board>;
clock-names = "xo";
};