The new oui probe has been missing these. This issue has been introduce in
commit 0d198328538276c4459ef5de081e68ae60e6c4c2 Author: Adam Jackson <[email protected]> Date: Mon May 14 16:05:47 2012 -0400 drm/i915/dp: Probe branch/sink OUIs v2: Do the eDP vdd dance of simply not probing the OUI on eDP panels as suggested by Chris Wilson. Cc: Adam Jackson <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50808 Reported-by: Linus Torvalds <[email protected]> Bugreport: http://permalink.gmane.org/gmane.comp.video.dri.devel/69695 Tested-by: Yang Guang <[email protected]> Signed-Off-by: Daniel Vetter <[email protected]> --- drivers/gpu/drm/i915/intel_dp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 296cfc2..fbc30a5 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1970,6 +1970,8 @@ intel_dp_probe_oui(struct intel_dp *intel_dp) { u8 buf[3]; + ironlake_edp_panel_vdd_on(intel_dp); + if (!(intel_dp->dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT)) return; @@ -1980,6 +1982,8 @@ intel_dp_probe_oui(struct intel_dp *intel_dp) if (intel_dp_aux_native_read_retry(intel_dp, DP_BRANCH_OUI, buf, 3)) DRM_DEBUG_KMS("Branch OUI: %02hx%02hx%02hx\n", buf[0], buf[1], buf[2]); + + ironlake_edp_panel_vdd_off(intel_dp, false); } static bool -- 1.7.10 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
