Hello Geert, On 3/9/22 13:56, Geert Uytterhoeven wrote: > Hi Javier, > > On Wed, Mar 9, 2022 at 1:14 PM Javier Martinez Canillas > <javierm@xxxxxxxxxx> wrote: >> On 3/8/22 17:30, Geert Uytterhoeven wrote: >>> Unfortunately a regression was introduced since your v3: printed >>> text is mirrored upside-down. I.e. "E" is rendered correctly, but "L" >>> turns into "Γ" (Greek Gamma). >>> I suspect something went wrong with the display initialization >>> sequence. >>> >> >> Could you please try Chen-Yu's fix for the COM scan direction mask ? >> >> https://lists.freedesktop.org/archives/dri-devel/2022-March/345915.html >> >> I made a mistake when converting to use the GENMASK() and FIELD_PREP() >> macros in v4 as suggested by Andy. The SSD130X_SET_COM_SCAN_DIR_MASK >> wasn't correct which would explain the output to be vertically flipped. > > Thanks, confirmed fixed. > Great, thanks a lot for testing and the confirmation! -- Best regards, Javier Martinez Canillas Linux Engineering Red Hat