This causes trouble on some VLV systems, and generally costs power elsewhere. If this ends up causing trouble, it could just mean we need to get rid of VDD force enable everywhere, and move to a pure PPS based DP training sequence. References: https://bugs.freedesktop.org/show_bug.cgi?id=69693 Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/intel_dp.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 1e372d5..cb33b67 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1236,9 +1236,7 @@ void ironlake_edp_panel_off(struct intel_dp *intel_dp) WARN(!intel_dp->want_panel_vdd, "Need VDD to turn off panel\n"); pp = ironlake_get_pp_control(intel_dp); - /* We need to switch off panel power _and_ force vdd, for otherwise some - * panels get very unhappy and cease to work. */ - pp &= ~(POWER_TARGET_ON | EDP_FORCE_VDD | PANEL_POWER_RESET | EDP_BLC_ENABLE); + pp &= ~(POWER_TARGET_ON | PANEL_POWER_RESET | EDP_BLC_ENABLE); pp_ctrl_reg = _pp_ctrl_reg(intel_dp); -- 1.8.4.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
