• Jerome Glisse's avatar
    radeon: fix pll/ctrc mapping on dce2 and dce3 hardware · fc58acdb
    Jerome Glisse authored
    This fix black screen on resume issue that some people are
    experiencing. There is a bug in the atombios code regarding
    pll/crtc mapping. The atombios code reverse the logic for
    the pll and crtc mapping.
    
    agd5f: drop unnecessary crtc id check, cc stable in case
    we miss 3.7.
    
    This fixes the root cause that was worked around by commits:
    drm/radeon: allocate PPLLs from low to high
    drm/radeon/dce3: switch back to old pll allocation order for discrete
    Signed-off-by: default avatarJerome Glisse <jglisse@redhat.com>
    Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
    Cc: stable@vger.kernel.org
    fc58acdb
atombios_crtc.c 61 KB