[Intel-gfx] [PATCH] drm/i915: don't probe oui for eDP panels

[Daniel Vetter]

At least not in the detect function. We'd need eDP vdd to do so if the
panel is off, but I've figured just disabling it is easier.

This issue has been introduce in

commit 0d198328538276c4459ef5de081e68ae60e6c4c2
Author: Adam Jackson <ajax at redhat.com>
Date:   Mon May 14 16:05:47 2012 -0400

    drm/i915/dp: Probe branch/sink OUIs

Cc: Adam Jackson <ajax at redhat.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50808
Reported-by: Linus Torvalds <torvalds at linux-foundation.org>
Bugreport: http://permalink.gmane.org/gmane.comp.video.dri.devel/69695
Tested-by: Yang Guang <guang.a.yang at intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/i915/intel_dp.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 296cfc2..34e1769 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1970,6 +1970,9 @@ intel_dp_probe_oui(struct intel_dp *intel_dp)
 {
 	u8 buf[3];
 
+	if (is_edp(intel_dp))
+		return;
+
 	if (!(intel_dp->dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT))
 		return;
 
-- 
1.7.10