linux-kernel - Re: [PATCH V3 2/2] arm64: dts: qcom: sc7280: Update lpassaudio clock controller for resets

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Date:   Tue, 26 Jul 2022 20:22:38 -0500
From:   Stephen Boyd <swboyd@...omium.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Satya Priya <quic_c_skakit@...cinc.com>
Cc:     Douglas Anderson <dianders@...omium.org>,
        Andy Gross <agross@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        quic_tdas@...cinc.com
Subject: Re: [PATCH V3 2/2] arm64: dts: qcom: sc7280: Update lpassaudio clock
 controller for resets

Quoting Satya Priya (2022-07-20 04:22:24)
> From: Taniya Das <quic_tdas@...cinc.com>
>
> The lpass audio supports TX/RX/WSA block resets. Also to keep
> consistency update lpasscore to lpass_core.

Consistency with what?

>
> Fixes: 9499240d15f2 ("arm64: dts: qcom: sc7280: Add lpasscore & lpassaudio clock controllers")
> Signed-off-by: Taniya Das <quic_tdas@...cinc.com>
> Signed-off-by: Satya Priya <quic_c_skakit@...cinc.com>
> ---
> Changes since v3:
>  - Remove the status="disabled" from lpasscc node.
>
>  arch/arm64/boot/dts/qcom/sc7280.dtsi | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> index 71735bb..c641f0b 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> @@ -2184,6 +2184,7 @@
>                         power-domains = <&lpass_aon LPASS_AON_CC_LPASS_AUDIO_HM_GDSC>;
>                         #clock-cells = <1>;
>                         #power-domain-cells = <1>;
> +                       #reset-cells = <1>;

Is there a binding update for qcom,sc7280-lpassaudiocc?

>                 };
>
>                 lpass_aon: clock-controller@...0000 {
> @@ -2191,13 +2192,13 @@
>                         reg = <0 0x03380000 0 0x30000>;
>                         clocks = <&rpmhcc RPMH_CXO_CLK>,
>                                <&rpmhcc RPMH_CXO_CLK_A>,
> -                              <&lpasscore LPASS_CORE_CC_CORE_CLK>;
> +                              <&lpass_core LPASS_CORE_CC_CORE_CLK>;

Is this really necessary?

>                         clock-names = "bi_tcxo", "bi_tcxo_ao", "iface";
>                         #clock-cells = <1>;
>                         #power-domain-cells = <1>;
>                 };
>
> -               lpasscore: clock-controller@...0000 {
> +               lpass_core: clock-controller@...0000 {

Is this really necessary?

>                         compatible = "qcom,sc7280-lpasscorecc";
>                         reg = <0 0x03900000 0 0x50000>;
>                         clocks = <&rpmhcc RPMH_CXO_CLK>;