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Date:   Thu, 23 Nov 2023 15:13:09 +0800
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Subject: Re: [PATCH v3 00/11] Enable HS-G5 support on SM8550
To:     Andrew Halaney <ahalaney@redhat.com>
CC:     <bvanassche@acm.org>, <mani@kernel.org>,
        <stanley.chu@mediatek.com>, <adrian.hunter@intel.com>,
        <beanhuo@micron.com>, <avri.altman@wdc.com>,
        <junwoo80.lee@samsung.com>, <martin.petersen@oracle.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
        "open list:ARM/Mediatek SoC support" <linux-kernel@vger.kernel.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-arm-kernel@lists.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@lists.infradead.org>
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From:   Can Guo <quic_cang@quicinc.com>
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On 11/23/2023 12:17 AM, Andrew Halaney wrote:
> On Tue, Nov 21, 2023 at 11:10:31PM -0800, Can Guo wrote:
>> This series enables HS-G5 support on SM8550.
>>
>> This series is rebased on below changes from Mani -
>> https://patchwork.kernel.org/project/linux-scsi/patch/20230908145329.154024-1-manivannan.sadhasivam@linaro.org/
>> https://patchwork.kernel.org/project/linux-scsi/patch/20230908145329.154024-2-manivannan.sadhasivam@linaro.org/
>>
>> This series is tested on below HW combinations -
>> SM8550 MTP + UFS4.0
>> SM8550 QRD + UFS3.1
>> SM8450 MTP + UFS3.1 (for regression test)
>> SM8350 MTP + UFS3.1 (for regression test)
>>
>> Note that during reboot test on above platforms, I occasinally hit PA (PHY)
>> error during the 2nd init, this is not related with this series. A fix for
>> this is mentioned in below patchwork -
>>
>> https://patchwork.kernel.org/project/linux-scsi/patch/1698145815-17396-1-git-send-email-quic_ziqichen@quicinc.com/
>>
>> Also note that on platforms, which have two sets of UFS PHY settings are
>> provided (say G4 and no-G4, G5 and no-G5). The two sets of PHY settings are
>> basically programming different values to different registers, mixing the
>> two sets and/or overwriting one set with another set is definitely not
>> blessed by UFS PHY designers. For SM8550, this series will make sure we
>> honor the rule. However, for old targets Mani and I will fix them in
>> another series in future.
>>
>> v2 -> v3:
>> 1. Addressed comments from Andrew, Mani and Bart in patch #1
>> 2. Added patch #2 as per request from Andrew and Mani
>> 3. Added patch #4 to fix a common issue on old targets, it is not necessary
>>     for this series, but put in this series only because it would be easier
>>     to maintain and no need to rebase
>> 4. Addressed comments from Dmitry and Mani in patches to phy-qcom-qmp-ufs.c
>>
>> v1 -> v2:
>> 1. Removed 2 changes which were exposing power info in sysfs
>> 2. Removed 1 change which was moving data structs to phy-qcom-qmp-ufs.h
>> 3. Added one new change (the 1st one) to clean up usage of ufs_dev_params based on comments from Mani
>> 4. Adjusted the logic of UFS device version detection according to comments from Mani:
>> 	4.1 For HW version < 0x5, go through dual init
>>   	4.2 For HW version >= 0x5
>> 		a. If UFS device version is populated, one init is required
>> 		b. If UFS device version is not populated, go through dual init
> 
> The cover letter didn't include linux-arm-msm@vger.kernel.org, which
> made me have to go searching for this on lore to see what had changed
> in the rest of the series I received as a member of that mailing list.
> 

Sorry for the inconvenience.

> Going forward please try and include that mailing list!

Sure, will do.

Thanks,
Can Guo.
> 
>>
>> Bao D. Nguyen (1):
>>    scsi: ufs: ufs-qcom: Add support for UFS device version detection
>>
>> Can Guo (10):
>>    scsi: ufs: host: Rename structure ufs_dev_params to ufs_host_params
>>    scsi: ufs: ufs-qcom: No need to set hs_rate after
>>      ufshcd_init_host_param()
>>    scsi: ufs: ufs-qcom: Setup host power mode during init
>>    scsi: ufs: ufs-qcom: Limit negotiated gear to selected PHY gear
>>    scsi: ufs: ufs-qcom: Allow the first init start with the maximum
>>      supported gear
>>    scsi: ufs: ufs-qcom: Limit HS-G5 Rate-A to hosts with HW version 5
>>    scsi: ufs: ufs-qcom: Set initial PHY gear to max HS gear for HW ver 5
>>      and newer
>>    phy: qualcomm: phy-qcom-qmp-ufs: Rectify SM8550 UFS HS-G4 PHY Settings
>>    phy: qualcomm: phy-qcom-qmp-ufs: Use tbls_hs_max instead of tbls_hs_g4
>>    phy: qualcomm: phy-qcom-qmp-ufs: Add High Speed Gear 5 support for
>>      SM8550
>>
>>   drivers/phy/qualcomm/phy-qcom-qmp-pcs-ufs-v6.h     |   2 +
>>   drivers/phy/qualcomm/phy-qcom-qmp-qserdes-com-v6.h |   2 +
>>   .../qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h    |  12 ++
>>   drivers/phy/qualcomm/phy-qcom-qmp-ufs.c            | 171 ++++++++++++++++-----
>>   drivers/ufs/host/ufs-exynos.c                      |   7 +-
>>   drivers/ufs/host/ufs-hisi.c                        |  11 +-
>>   drivers/ufs/host/ufs-mediatek.c                    |  12 +-
>>   drivers/ufs/host/ufs-qcom.c                        |  92 ++++++++---
>>   drivers/ufs/host/ufs-qcom.h                        |   5 +-
>>   drivers/ufs/host/ufshcd-pltfrm.c                   |  69 ++++-----
>>   drivers/ufs/host/ufshcd-pltfrm.h                   |  10 +-
>>   11 files changed, 275 insertions(+), 118 deletions(-)
>>
>> -- 
>> 2.7.4
>>
>>
>> _______________________________________________
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>> linux-arm-kernel@lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>