linux-kernel - Re: [PATCH v8 3/4] clk: qcom: rpmh: Add support for SM8550 rpmh clocks

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Date:   Wed, 4 Jan 2023 14:45:04 +0200
From:   Abel Vesa <abel.vesa@...aro.org>
To:     Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Mike Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-clk@...r.kernel.org
Subject: Re: [PATCH v8 3/4] clk: qcom: rpmh: Add support for SM8550 rpmh
 clocks

On 23-01-04 12:46:55, Dmitry Baryshkov wrote:
> On 04/01/2023 11:34, Abel Vesa wrote:
> > Adds the RPMH clocks present in SM8550 SoC.
> > 
> > Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
> > Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> > ---
> >   drivers/clk/qcom/clk-rpmh.c | 36 ++++++++++++++++++++++++++++++++++++
> >   1 file changed, 36 insertions(+)
> 
> I think the plan was to have the _PAD clock as a child node of the rpmcc. Is
> it still the planned implementation?

Yes. Here is how the dts rpmhcc node will look like:

         rpmhcc: clock-controller {
                 compatible = "qcom,sm8550-rpmh-clk";
                 #clock-cells = <1>;
                 clock-names = "xo";
                 clocks = <&xo_board>;

                 bi_tcxo_div2: bi-tcxo-div2-clk {
                         #clock-cells = <0>;
                         compatible = "fixed-factor-clock";
                         clocks = <&rpmhcc RPMH_CXO_CLK>;
                         clock-mult = <1>;
                         clock-div = <2>;
                 };

                 bi_tcxo_ao_div2: bi-tcxo-div2-ao-clk {
                         #clock-cells = <0>;
                         compatible = "fixed-factor-clock";
                         clocks = <&rpmhcc RPMH_CXO_CLK_A>;
                         clock-mult = <1>;
                         clock-div = <2>;
                 };
         };

The clock nodes will be probed on of_clk_init.

> 
> -- 
> With best wishes
> Dmitry
>