• Harry Wentland's avatar
    drm/amd/display: DC I2C review · 2e12d9b7
    Harry Wentland authored
    While reviewing I2C in DC identified a few places. Added a couple to the
    TODO list.
    1) Connector info read
    See get_ext_display_connection_info
    On some boards the connector information has to be read through a
    special I2C channel. This line is only used for this purpose and only on
    driver init.
    2) SCDC stuff
    This should all be reworked to go through DRM's SCDC code. When this is
    done some unnecessary I2C code can be retired as well.
    3) Max TMDS clock read
    See dal_ddc_service_i2c_query_dp_dual_mode_adaptor
    This should happen in DRM as well. I haven't checked if there's
    currently functionality in DRM. If not we can propose something.
    4) HDMI retimer programming
    Some boards have an HDMI retimer that we need to program to pass PHY
    1 & 3 might be a good exercise if someone is looking for things to do.
    v2: Merge dp_dual_mode_adaptor TODO
    Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
    Signed-off-by: default avatarHarry Wentland <harry.wentland@amd.com>
    Acked-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
    Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
TODO 4.47 KB