linux-kernel - Re: [PATCH v2 16/16] arm64: dts: qcom: sm8550: Fix UFS PHY clocks

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Date: Wed, 20 Dec 2023 11:56:09 +0800
From: Can Guo <quic_cang@...cinc.com>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        <andersson@...nel.org>, <konrad.dybcio@...aro.org>, <vkoul@...nel.org>,
        <sboyd@...nel.org>, <mturquette@...libre.com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <linux-phy@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 16/16] arm64: dts: qcom: sm8550: Fix UFS PHY clocks



On 12/18/2023 8:07 PM, Manivannan Sadhasivam wrote:
> QMP PHY used in SM8550 requires 3 clocks:
> 
> * ref - 19.2MHz reference clock from RPMh
> * ref_aux - Auxiliary reference clock from GCC
> * qref - QREF clock from TCSR
> 
> Fixes: 35cf1aaab169 ("arm64: dts: qcom: sm8550: Add UFS host controller and phy nodes")
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> ---
>   arch/arm64/boot/dts/qcom/sm8550.dtsi | 9 ++++++---
>   1 file changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> index baa8540868a4..386ffd0d72c4 100644
> --- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> @@ -1891,9 +1891,12 @@ crypto: crypto@...a000 {
>   		ufs_mem_phy: phy@...0000 {
>   			compatible = "qcom,sm8550-qmp-ufs-phy";
>   			reg = <0x0 0x01d80000 0x0 0x2000>;
> -			clocks = <&tcsr TCSR_UFS_CLKREF_EN>,
> -				 <&gcc GCC_UFS_PHY_PHY_AUX_CLK>;
> -			clock-names = "ref", "ref_aux";
> +			clocks = <&rpmhcc RPMH_CXO_CLK>,
> +				 <&gcc GCC_UFS_PHY_PHY_AUX_CLK>,
> +				 <&tcsr TCSR_UFS_CLKREF_EN>;
> +			clock-names = "ref",
> +				      "ref_aux",
> +				      "qref";
>   
>   			power-domains = <&gcc UFS_MEM_PHY_GDSC>;
>   
Reviewed-by: Can Guo <quic_cang@...cinc.com>