> -----Original Message----- > From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf > Of Michel Dänzer > Sent: Monday, October 24, 2016 3:52 AM > To: amd-gfx at lists.freedesktop.org > Cc: Nath, Arindam > Subject: [PATCH] Revert "drm/radeon: fix DP link training issue with second > 4K monitor" > > From: Michel Dänzer <michel.daenzer at amd.com> > > This reverts commit 1a738347df2ee4977459a8776fe2c62196bdcb1b. > > It caused at least some Kaveri laptops to incorrectly report DisplayPort > connectors as connected. > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97857 > Cc: stable at vger.kernel.org > Signed-off-by: Michel Dänzer <michel.daenzer at amd.com> Reviewed-by: Alex Deucher <alexander.deucher at amd.com> > --- > drivers/gpu/drm/radeon/radeon_dp_auxch.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/radeon/radeon_dp_auxch.c > b/drivers/gpu/drm/radeon/radeon_dp_auxch.c > index db64e00..3b0c229 100644 > --- a/drivers/gpu/drm/radeon/radeon_dp_auxch.c > +++ b/drivers/gpu/drm/radeon/radeon_dp_auxch.c > @@ -105,7 +105,7 @@ radeon_dp_aux_transfer_native(struct drm_dp_aux > *aux, struct drm_dp_aux_msg *msg > > tmp &= AUX_HPD_SEL(0x7); > tmp |= AUX_HPD_SEL(chan->rec.hpd); > - tmp |= AUX_EN | AUX_LS_READ_EN | AUX_HPD_DISCON(0x1); > + tmp |= AUX_EN | AUX_LS_READ_EN; > > WREG32(AUX_CONTROL + aux_offset[instance], tmp); > > -- > 2.10.1 > > _______________________________________________ > amd-gfx mailing list > amd-gfx at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
