| Message ID | 1393718706-13853-1-git-send-email-patrik.r.jakobsson@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 57552eb..44de6f7 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1252,7 +1252,7 @@ void ironlake_edp_panel_off(struct intel_dp *intel_dp) 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 | PANEL_POWER_RESET | EDP_BLC_ENABLE); + pp &= ~(POWER_TARGET_ON | EDP_FORCE_VDD | PANEL_POWER_RESET | EDP_BLC_ENABLE); pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
This solves the blank screen problem on the MacBook Air 6,2. The comments state that we need to force edp vdd so lets put it back. The EDP_FORCE_VDD bit was removed in commit: commit dff392dbd258381a6c3164f38420593f2d291e3b drm/i915: don't touch the VDD when disabling the panel Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74628 Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> --- drivers/gpu/drm/i915/intel_dp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)