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Date: Mon, 16 Jan 2023 23:14:10 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Christian Marangi <ansuelsmth@...il.com>
Cc: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-clk@...r.kernel.org, Krzysztof Kozlowski <krzk@...nel.org>,
Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v7 1/7] dt-bindings: clock: Convert qcom,krait-cc to yaml
On Mon, 16 Jan 2023 at 22:48, Christian Marangi <ansuelsmth@...il.com> wrote:
>
> Convert qcom,krait-cc to yaml Documentation.
>
> Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
> Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>
> Acked-by: Rob Herring <robh@...nel.org>
I know this has been reviewed already. I checked again my apq8064
branch and noticed that the bindings are not compatible with the
apq8064. The SoC in question is a 4-core device, so this is what I had
in mind:
kraitcc: clock-controller {
compatible = "qcom,krait-cc-v1";
clocks = <&gcc PLL9>, /* hfpll0 */
<&gcc PLL10>, /* hfpll1 */
<&gcc PLL16>, /* hfpll2 */
<&gcc PLL17>, /* hfpll3 */
<&gcc PLL12>, /* hfpll_l2 */
<&acc0>,
<&acc1>,
<&acc2>,
<&acc3>,
<&l2cc>;
clock-names = "hfpll0",
"hfpll1",
"hfpll2",
"hfpll3",
"hfpll_l2",
"acpu0_aux",
"acpu1_aux",
"acpu2_aux",
"acpu3_aux",
"acpu_l2_aux";
#clock-cells = <1>;
};
> ---
> .../bindings/clock/qcom,krait-cc.txt | 34 -----------
> .../bindings/clock/qcom,krait-cc.yaml | 59 +++++++++++++++++++
> 2 files changed, 59 insertions(+), 34 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/clock/qcom,krait-cc.txt
> create mode 100644 Documentation/devicetree/bindings/clock/qcom,krait-cc.yaml
>
> diff --git a/Documentation/devicetree/bindings/clock/qcom,krait-cc.txt b/Documentation/devicetree/bindings/clock/qcom,krait-cc.txt
> deleted file mode 100644
> index 030ba60dab08..000000000000
> --- a/Documentation/devicetree/bindings/clock/qcom,krait-cc.txt
> +++ /dev/null
> @@ -1,34 +0,0 @@
> -Krait Clock Controller
> -
> -PROPERTIES
> -
> -- compatible:
> - Usage: required
> - Value type: <string>
> - Definition: must be one of:
> - "qcom,krait-cc-v1"
> - "qcom,krait-cc-v2"
> -
> -- #clock-cells:
> - Usage: required
> - Value type: <u32>
> - Definition: must be 1
> -
> -- clocks:
> - Usage: required
> - Value type: <prop-encoded-array>
> - Definition: reference to the clock parents of hfpll, secondary muxes.
> -
> -- clock-names:
> - Usage: required
> - Value type: <stringlist>
> - Definition: must be "hfpll0", "hfpll1", "acpu0_aux", "acpu1_aux", "qsb".
> -
> -Example:
> -
> - kraitcc: clock-controller {
> - compatible = "qcom,krait-cc-v1";
> - clocks = <&hfpll0>, <&hfpll1>, <&acpu0_aux>, <&acpu1_aux>, <qsb>;
> - clock-names = "hfpll0", "hfpll1", "acpu0_aux", "acpu1_aux", "qsb";
> - #clock-cells = <1>;
> - };
> diff --git a/Documentation/devicetree/bindings/clock/qcom,krait-cc.yaml b/Documentation/devicetree/bindings/clock/qcom,krait-cc.yaml
> new file mode 100644
> index 000000000000..8caa5a677394
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/qcom,krait-cc.yaml
> @@ -0,0 +1,59 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/qcom,krait-cc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Krait Clock Controller
> +
> +maintainers:
> + - Christian Marangi <ansuelsmth@...il.com>
> +
> +description: |
> + Qualcomm Krait Clock Controller used to correctly scale the CPU and the L2
> + rates.
> +
> +properties:
> + compatible:
> + enum:
> + - qcom,krait-cc-v1
> + - qcom,krait-cc-v2
> +
> + clocks:
> + items:
> + - description: phandle to hfpll for CPU0 mux
> + - description: phandle to hfpll for CPU1 mux
> + - description: phandle to CPU0 aux clock
> + - description: phandle to CPU1 aux clock
> + - description: phandle to QSB fixed clk
> +
> + clock-names:
> + items:
> + - const: hfpll0
> + - const: hfpll1
> + - const: acpu0_aux
> + - const: acpu1_aux
> + - const: qsb
> +
> + '#clock-cells':
> + const: 1
> +
> +required:
> + - compatible
> + - clocks
> + - clock-names
> + - '#clock-cells'
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + clock-controller {
> + compatible = "qcom,krait-cc-v1";
> + clocks = <&hfpll0>, <&hfpll1>,
> + <&acpu0_aux>, <&acpu1_aux>, <&qsb>;
> + clock-names = "hfpll0", "hfpll1",
> + "acpu0_aux", "acpu1_aux", "qsb";
> + #clock-cells = <1>;
> + };
> +...
> --
> 2.37.2
>
--
With best wishes
Dmitry
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