linux-kernel - Re: (subset) [PATCH v7 0/5] UFS: Add OPP support

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Message-ID: <20231204120137.GE35383@thinkpad>
Date:   Mon, 4 Dec 2023 17:31:37 +0530
From:   Manivannan Sadhasivam <mani@...nel.org>
To:     Bjorn Andersson <andersson@...nel.org>
Cc:     vireshk@...nel.org, nm@...com, sboyd@...nel.org,
        myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
        cw00.choi@...sung.com, konrad.dybcio@...aro.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        conor+dt@...nel.org, jejb@...ux.ibm.com,
        martin.petersen@...cle.com,
        Manivannan Sadhasivam <mani@...nel.org>,
        alim.akhtar@...sung.com, avri.altman@....com, bvanassche@....org,
        linux-scsi@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        quic_asutoshd@...cinc.com, quic_cang@...cinc.com,
        quic_nitirawa@...cinc.com, quic_narepall@...cinc.com,
        quic_bhaskarv@...cinc.com, quic_richardp@...cinc.com,
        quic_nguyenb@...cinc.com, quic_ziqichen@...cinc.com,
        bmasney@...hat.com, krzysztof.kozlowski@...aro.org,
        linux-kernel@...r.kernel.org, alessandro.carminati@...il.com
Subject: Re: (subset) [PATCH v7 0/5] UFS: Add OPP support

On Sat, Dec 02, 2023 at 08:54:46PM -0800, Bjorn Andersson wrote:
> 
> On Thu, 12 Oct 2023 22:51:24 +0530, Manivannan Sadhasivam wrote:
> > This series adds OPP (Operating Points) support to UFSHCD driver.
> > 
> > Motivation behind adding OPP support is to scale both clocks as well as
> > regulators/performance state dynamically. Currently, UFSHCD just scales
> > clock frequency during runtime with the help of "freq-table-hz" property
> > defined in devicetree. With the addition of OPP tables in devicetree (as
> > done for Qcom SDM845 and SM8250 SoCs in this series) UFSHCD can now scale
> > both clocks and performance state of power domain which helps in power
> > saving.
> > 
> > [...]
> 
> Applied, thanks!
> 
> [4/5] arm64: dts: qcom: sdm845: Add OPP table support to UFSHC
>       commit: ec987b5efd59fdea4178d824d8ec4bbdf3019bdf
> [5/5] arm64: dts: qcom: sm8250: Add OPP table support to UFSHC
>       commit: 725be1d6318e4ea7e3947fd4242a14cf589cfebf
> 

Bjorn, could you please drop these two patches? I found the OPP regression in
the ufs-qcom driver due to some patches that got merged last cycle. Nitin is
working on a fix for that. So I'd like to defer merging of these dts patches to
v6.9.

I can resend them after v6.8-rc1.

- Mani

> Best regards,
> -- 
> Bjorn Andersson <andersson@...nel.org>

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