On 31.08.2015 17:19, Alex Deucher wrote: > AUX addresses are 20 bits long. Send out the entire address instead of > just the low 16 bits. > > Port of: > drm/radeon/atom: Send out the full AUX address > to radeon non-atom aux path > > Signed-off-by: Alex Deucher <alexander.deucher at amd.com> > Cc: stable at vger.kernel.org
Reviewed-by: Christian König <christian.koenig at amd.com> for both patches. > --- > drivers/gpu/drm/radeon/radeon_dp_auxch.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/radeon/radeon_dp_auxch.c > b/drivers/gpu/drm/radeon/radeon_dp_auxch.c > index fcbd60b..3b0c229 100644 > --- a/drivers/gpu/drm/radeon/radeon_dp_auxch.c > +++ b/drivers/gpu/drm/radeon/radeon_dp_auxch.c > @@ -116,8 +116,8 @@ radeon_dp_aux_transfer_native(struct drm_dp_aux *aux, > struct drm_dp_aux_msg *msg > AUX_SW_WR_BYTES(bytes)); > > /* write the data header into the registers */ > - /* request, addres, msg size */ > - byte = (msg->request << 4); > + /* request, address, msg size */ > + byte = (msg->request << 4) | ((msg->address >> 16) & 0xf); > WREG32(AUX_SW_DATA + aux_offset[instance], > AUX_SW_DATA_MASK(byte) | AUX_SW_AUTOINCREMENT_DISABLE); >
