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authorDaniel Vetter <daniel.vetter@ffwll.ch>2012-06-12 13:20:47 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-06-16 15:39:02 +0200
commit351cfc34db8decb0c5cc1aac7cf1780a0e45c8b1 (patch)
treeedec05bc1f76cb0076f6396265a814730e10b68e /drivers/gpu
parentb708a1d5ea7880b399dbd45cacafff6ae8d73171 (diff)
drm/i915: eDP aux needs vdd
The new oui probe has been missing these. This issue has been introduce in commit 0d198328538276c4459ef5de081e68ae60e6c4c2 Author: Adam Jackson <ajax@redhat.com> 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. v3: Fix up the error path fail - I suck. Cc: Adam Jackson <ajax@redhat.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50808 Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Bugreport: http://permalink.gmane.org/gmane.comp.video.dri.devel/69695 Tested-by: Yang Guang <guang.a.yang@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/intel_dp.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 296cfc201a81..c574ff0189de 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1973,6 +1973,8 @@ intel_dp_probe_oui(struct intel_dp *intel_dp)
if (!(intel_dp->dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT))
return;
+ ironlake_edp_panel_vdd_on(intel_dp);
+
if (intel_dp_aux_native_read_retry(intel_dp, DP_SINK_OUI, buf, 3))
DRM_DEBUG_KMS("Sink OUI: %02hx%02hx%02hx\n",
buf[0], buf[1], buf[2]);
@@ -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