• Ville Syrjälä's avatar
    drm/i915: Make sure DPLL is enabled when kicking the power sequencer on VLV/CHV · d288f65f
    Ville Syrjälä authored
    The power seqeuencer kick procedure requires the DPLL to be running
    in order to complete successfully. In case the DPLL isn't currently
    running when we need to kick the power seqeuncer enable it
    temporarily. This can happen eg. during ->detect() when the pipe is
    not already active.
    
    To avoid needlessly duplicating the DPLL programming re-use the already
    existing functions by passing a temporary pipe config to them instead
    of having them consult the current pipe config at crtc->config.
    
    v2: Introduce vlv_force_pll_{on,off}() (Daniel)
    v3: Rebase due to drm_crtc vs. intel_crtc changes
        Fix a typo in commit msg (checkpatch)
    Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
    Reviewed-by: Imre Deak <imre.deak@intel.com> (v1)
    [danvet: Appease checkpatch.]
    Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
    d288f65f
intel_display.c 372 KB