Re: [PATCH v6 1/6] scsi: ufs: Add "wb_on" sysfs node to control WB on/off

[PATCH v6 0/6] Several changes for UFS WriteBooster · Bean Huo <hidden> · 2021-01-18
[PATCH v6 5/6] scsi: ufs: Group UFS WB related flags to struct ufs_dev_info · Bean Huo <hidden> · 2021-01-18
[PATCH v6 4/6] scsi: ufs: Remove two WB related fields from struct ufs_dev_info · Bean Huo <hidden> · 2021-01-18
[PATCH v6 6/6] scsi: ufs: Cleanup WB buffer flush toggle implementation · Bean Huo <hidden> · 2021-01-18
[PATCH v6 3/6] scsi: ufs: Changes comment in the function ufshcd_wb_probe() · Bean Huo <hidden> · 2021-01-18
[PATCH v6 1/6] scsi: ufs: Add "wb_on" sysfs node to control WB on/off · Bean Huo <hidden> · 2021-01-18
Re: [PATCH v6 1/6] scsi: ufs: Add "wb_on" sysfs node to control WB on/off · Adrian Hunter <adrian.hunter@intel.com> · 2021-01-19
Re: [PATCH v6 1/6] scsi: ufs: Add "wb_on" sysfs node to control WB on/off · Bean Huo <hidden> · 2021-01-19
Re: [PATCH v6 1/6] scsi: ufs: Add "wb_on" sysfs node to control WB on/off · Adrian Hunter <adrian.hunter@intel.com> · 2021-01-19
Re: [PATCH v6 1/6] scsi: ufs: Add "wb_on" sysfs node to control WB on/off · Bean Huo <hidden> · 2021-01-19
[PATCH v6 2/6] docs: ABI: Add wb_on documentation for UFS sysfs · Bean Huo <hidden> · 2021-01-18

From: Adrian Hunter <adrian.hunter@intel.com>
Date: 2021-01-19 07:03:03
Also in: lkml

On 18/01/21 10:10 pm, Bean Huo wrote:

From: Bean Huo <redacted>

Currently UFS WriteBooster driver uses clock scaling up/down to set
WB on/off, for the platform which doesn't support UFSHCD_CAP_CLK_SCALING,
WB will be always on. Provide a sysfs attribute to enable/disable WB
during runtime. Write 1/0 to "wb_on" sysfs node to enable/disable UFS WB.

Is it so, that after a full reset, WB is always enabled again?  Is that
intended?

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