On Tue, Jan 28, 2020 at 4:21 PM Alex Deucher <alexdeucher@xxxxxxxxx> wrote: > > On Tue, Jan 28, 2020 at 11:10 AM Daniel Vetter <daniel.vetter@xxxxxxxx> wrote: > > > > Per at least one tester this is enough magic to recover the regression > > introduced for some people (but not all) in > > > > commit b8e2b0199cc377617dc238f5106352c06dcd3fa2 > > Author: Peter Rosin <peda@xxxxxxxxxx> > > Date: Tue Jul 4 12:36:57 2017 +0200 > > > > drm/fb-helper: factor out pseudo-palette > > > > which for radeon had the side-effect of refactoring out a seemingly > > redudant writing of the color palette. > > > > 10ms in a fairly slow modeset path feels like an acceptable form of > > duct-tape, so maybe worth a shot and see what sticks. > > > > Cc: Alex Deucher <alexander.deucher@xxxxxxx> > > Cc: Michel Dänzer <michel.daenzer@xxxxxxx> > > References: https://bugzilla.kernel.org/show_bug.cgi?id=198123 > > Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx> > > Works for me. Applied. Thanks! Actually, thinking about this more, I wonder if this will have adverse affects on stuff that messes with the LUT like various fade effects in compositors. I guess we can cross that bridge when we get to it. Alex > > Alex > > > > --- > > drivers/gpu/drm/radeon/radeon_display.c | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c > > index 354756e00fe1..d07c7db0c815 100644 > > --- a/drivers/gpu/drm/radeon/radeon_display.c > > +++ b/drivers/gpu/drm/radeon/radeon_display.c > > @@ -127,6 +127,8 @@ static void dce5_crtc_load_lut(struct drm_crtc *crtc) > > > > DRM_DEBUG_KMS("%d\n", radeon_crtc->crtc_id); > > > > + msleep(10); > > + > > WREG32(NI_INPUT_CSC_CONTROL + radeon_crtc->crtc_offset, > > (NI_INPUT_CSC_GRPH_MODE(NI_INPUT_CSC_BYPASS) | > > NI_INPUT_CSC_OVL_MODE(NI_INPUT_CSC_BYPASS))); > > -- > > 2.24.1 > > > > _______________________________________________ > > dri-devel mailing list > > dri-devel@xxxxxxxxxxxxxxxxxxxxx > > https://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
