linux-kernel - Re: [PATCH 1/2] arm64: dts: qcom: qcs8300: add DisplayPort device nodes

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Message-ID: <7ef6b1ff-b2ee-4b6e-a645-440c0af11c59@quicinc.com>
Date: Thu, 9 Jan 2025 17:41:30 +0800
From: Yongxing Mou <quic_yongmou@...cinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
CC: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Bjorn Andersson
	<andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
	<conor+dt@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Ritesh Kumar
	<quic_riteshk@...cinc.com>
Subject: Re: [PATCH 1/2] arm64: dts: qcom: qcs8300: add DisplayPort device
 nodes



On 2024/12/27 3:57, Dmitry Baryshkov wrote:
> On Thu, Dec 26, 2024 at 03:03:46PM +0800, Yongxing Mou wrote:
>>
>>
>> On 2024/12/6 5:36, Konrad Dybcio wrote:
>>> On 27.11.2024 11:45 AM, Yongxing Mou wrote:
>>>
>>>> +
>>>> +				clocks = <&dispcc MDSS_DISP_CC_MDSS_DPTX0_AUX_CLK>,
>>>> +					 <&dispcc MDSS_DISP_CC_MDSS_AHB_CLK>;
>>>> +				clock-names = "aux",
>>>> +					      "cfg_ahb";
>>>
>>> power-domains = <&rpmhpd RPMHPD_MX>;
>>>
>> emm,we use RPMHPD_MMCX in qcs8300 mdss and dpu..
>>> (or maybe even MXC?)
> 
> But it is a DP PHY, not a MDSS or DPU. Is the PLL being sourced by MMCX
> or by MX?
> 
Hi, thank for pointing it.We confirm it, and this should use RPMHPD_MX 
not RPMHPD_MMCX.