linux-kernel - Re: [PATCH 0/5] Add UFS support for SM8750

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Message-ID: <e21cd976-11dd-4a52-9134-fd06c11c0de7@quicinc.com>
Date: Sat, 8 Feb 2025 23:27:19 +0530
From: Nitin Rawat <quic_nitirawa@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Melody Olvera
	<quic_molvera@...cinc.com>,
        Vinod Koul <vkoul@...nel.org>,
        "Kishon Vijay
 Abraham I" <kishon@...nel.org>,
        Rob Herring <robh@...nel.org>,
        "Krzysztof
 Kozlowski" <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Alim Akhtar
	<alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Bart Van Assche
	<bvanassche@....org>,
        Bjorn Andersson <andersson@...nel.org>,
        Andy Gross
	<agross@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        "Satya Durga
 Srinivasu Prabhala" <quic_satyap@...cinc.com>,
        Trilok Soni
	<quic_tsoni@...cinc.com>
CC: <linux-arm-msm@...r.kernel.org>, <linux-phy@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-scsi@...r.kernel.org>, Manish Pandey <quic_mapa@...cinc.com>
Subject: Re: [PATCH 0/5] Add UFS support for SM8750



On 2/8/2025 4:17 AM, Konrad Dybcio wrote:
> On 13.01.2025 10:46 PM, Melody Olvera wrote:
>> Add UFS support for SM8750 SoCs.
>>
>> Signed-off-by: Melody Olvera <quic_molvera@...cinc.com>
>> ---
>> Nitin Rawat (5):
>>        dt-bindings: phy: qcom,sc8280xp-qmp-ufs-phy: Document the SM8750 QMP UFS PHY
>>        phy: qcom-qmp-ufs: Add PHY Configuration support for SM8750
>>        dt-bindings: ufs: qcom: Document the SM8750 UFS Controller
>>        arm64: dts: qcom: sm8750: Add UFS nodes for SM8750 SoC
>>        arm64: dts: qcom: sm8750: Add UFS nodes for SM8750 QRD and MTP boards
> 
> You still need the same workaround 8550/8650 have in the UFS driver
> (UFSHCD_QUIRK_BROKEN_LSDBS_CAP) for it to work reliably, or at least
> that was the case for me on a 8750 QRD.

Hi Konrad,

The LSDBS workaround is only applicable for SM8650 and SM8550.
SM8750 and onwards doesn't need this WA anymore as it is fixed in HW.

Thanks,
Nitin
> 
> Please check whether we can make that quirk apply based on ctrl
> version or so, so that we don't have to keep growing the compatible
> list in the driver.
> 
> Konrad