linux-kernel - Re: [PATCH 13/14] arm64: dts: qcom: sm8650: Drop PCIE_AUX_CLK from pcie

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Date: Wed, 24 Jan 2024 13:34:01 +0100
From: neil.armstrong@...aro.org
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
 Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>, Vinod Koul <vkoul@...nel.org>,
 Kishon Vijay Abraham I <kishon@...nel.org>, Rob Herring
 <robh+dt@...nel.org>, Krzysztof Kozlowski
 <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>,
 cros-qcom-dts-watchers@...omium.org
Cc: linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 13/14] arm64: dts: qcom: sm8650: Drop PCIE_AUX_CLK from
 pcie_phy node

On 24/01/2024 08:36, Manivannan Sadhasivam wrote:
> PCIe PHY hw doesn't require PCIE_AUX_CLK for functioning. This clock is
> only required by the PCIe controller. Hence drop it from pcie_phy node.
> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> ---
>   arch/arm64/boot/dts/qcom/sm8650.dtsi | 6 ++----
>   1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi
> index 2df77123a8c7..b31e60599891 100644
> --- a/arch/arm64/boot/dts/qcom/sm8650.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi
> @@ -2276,13 +2276,11 @@ pcie0_phy: phy@...6000 {
>   			compatible = "qcom,sm8650-qmp-gen3x2-pcie-phy";
>   			reg = <0 0x01c06000 0 0x2000>;
>   
> -			clocks = <&gcc GCC_PCIE_0_AUX_CLK>,
> -				 <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
> +			clocks = <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
>   				 <&tcsr TCSR_PCIE_0_CLKREF_EN>,
>   				 <&gcc GCC_PCIE_0_PHY_RCHNG_CLK>,
>   				 <&gcc GCC_PCIE_0_PIPE_CLK>;
> -			clock-names = "aux",
> -				      "cfg_ahb",
> +			clock-names = "cfg_ahb",
>   				      "ref",
>   				      "rchng",
>   				      "pipe";
> 

Tested-by: Neil Armstrong <neil.armstrong@...aro.org> # on SM8650-QRD