On Tue, 2021-01-19 at 12:00 +0200, Adrian Hunter wrote: > > > Is it so, that after a full reset, WB is always enabled again? > > > Is > > > that > > > intended? > > > > Hello Adrian > > Good questions. yes, after a full reset, the UFS device side by > > default > > is wb disabled, then WB will be always enabled agaion in > > ufshcd_wb_config(hba). but, for the platform which > > supports UFSHCD_CAP_CLK_SCALING, wb will be disabled again while > > clk > > scaling down and enabled while clk scaling up. > > > > Regarding the last question, I think OEM wants to do that. maybe > > they > > suppose there will be a lot of writing after reset?? From the UFS > > device's point of view, the control of WB is up to the user. > > If it is by design enabled after reset, then perhaps it should be > mentioned > in the sysfs documentation. ok, will add it in the next version. thanks, Bean
