On Thu, 2025-02-13 at 16:00 +0800, Ziqi Chen wrote: > > External email : Please do not click links or open attachments until > you have verified the sender or the content. > > > From: Can Guo <quic_cang@xxxxxxxxxxx> > > Instead of only two frequencies, if OPP V2 is used, the UFS devfreq > clock > scaling may scale the clock among multiple frequencies. In the case > of > scaling up, the devfreq may decide to scale the clock to an > intermediate > freq based on load, but the clock scale up pre change operation uses > settings for the max clock freq unconditionally. Fix it by passing > the > target_freq to clock scale up pre change so that the correct settings > for > the target_freq can be used. > > In the case of scaling down, the clock scale down post change > operation > is doing fine, because it reads the actual clock rate to tell freq, > but to > keep symmetry with clock scale up pre change operation, just use the > target_freq instead of reading clock rate. > > Signed-off-by: Can Guo <quic_cang@xxxxxxxxxxx> > Co-developed-by: Ziqi Chen <quic_ziqichen@xxxxxxxxxxx> > Signed-off-by: Ziqi Chen <quic_ziqichen@xxxxxxxxxxx> > Reviewed-by: Bean Huo <beanhuo@xxxxxxxxxx> > Tested-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx> > --- Reviewed-by: Peter Wang <peter.wang@xxxxxxxxxxxx>
