linux-kernel - Re: [PATCH V4 8/8] arm64: dts: ipq6018: Add a53 pll and apcs clock

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Date:   Tue, 12 May 2020 13:24:39 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Sivaprakash Murugesan <sivaprak@...eaurora.org>
Cc:     agross@...nel.org, mturquette@...libre.com, sboyd@...nel.org,
        robh+dt@...nel.org, jassisinghbrar@...il.com,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V4 8/8] arm64: dts: ipq6018: Add a53 pll and apcs clock

On Sun 03 May 23:20 PDT 2020, Sivaprakash Murugesan wrote:

> add support for apps pll and apcs clock.
> 
> Signed-off-by: Sivaprakash Murugesan <sivaprak@...eaurora.org>
> ---
>  arch/arm64/boot/dts/qcom/ipq6018.dtsi | 16 +++++++++++++---
>  1 file changed, 13 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/ipq6018.dtsi b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
> index 1aa8d85..af2ceeb 100644
> --- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
> +++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
> @@ -294,12 +294,22 @@
>  		};
>  
>  		apcs_glb: mailbox@...1000 {
> -			compatible = "qcom,ipq8074-apcs-apps-global";
> -			reg = <0x0b111000 0xc>;
> -
> +			compatible = "qcom,ipq6018-apcs-apps-global";
> +			reg = <0x0b111000 0x1000>;

My documentation states that IPQ8074 indeed has this block at
0x0b111000, but IPQ6018 it's at 0x6b111000. Can you confirm this is
correct? Same with the pll below.

Apart from that the patch looks good.

Regards,
Bjorn

> +			#clock-cells = <1>;
> +			clocks = <&apsspll>, <&xo>;
> +			clock-names = "pll", "xo";
>  			#mbox-cells = <1>;
>  		};
>  
> +		apsspll: clock@...6000 {
> +			compatible = "qcom,ipq-apss-pll";
> +			reg = <0x0b116000 0x40>;
> +			#clock-cells = <0>;
> +			clocks = <&xo>;
> +			clock-names = "xo";
> +		};
> +
>  		timer {
>  			compatible = "arm,armv8-timer";
>  			interrupts = <GIC_PPI 2 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
> -- 
> 2.7.4
>