diff mbox

[0064/1094] drm/i915: properly disable the VDD when disabling the panel

Message ID 1413889294-31328-65-git-send-email-dheerajx.s.jamwal@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Dheeraj Jamwal Oct. 21, 2014, 10:44 a.m. UTC 
From: Paulo Zanoni <paulo.r.zanoni@intel.com>

Commit b3064154dfd37deb386b1e459c54e1ca2460b3d5 tried to revert commit
dff392dbd258381a6c3164f38420593f2d291e3b, but wasn't complete, which
resulted in regressions on Haswell. So this commit should fix
b3064154dfd37deb386b1e459c54e1ca2460b3d5 by undoing what it did and
providing an actual complete revert of
dff392dbd258381a6c3164f38420593f2d291e3b.

Fixes regression introduced by:
commit b3064154dfd37deb386b1e459c54e1ca2460b3d5
Author: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Date:   Tue Mar 4 00:42:44 2014 +0100
    drm/i915: Don't just say it, actually force edp vdd

Testcase: igt/pm_pc8
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Tested-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

Cherry-picked-from 849e39f5d7e52eb44d37bbd5ce695f7cdcbe923c

Signed-off-by: Dheeraj Jamwal <dheerajx.s.jamwal@intel.com>
---
 drivers/gpu/drm/i915/intel_ddi.c |    1 +
 drivers/gpu/drm/i915/intel_dp.c  |    3 +--
 drivers/gpu/drm/i915/intel_drv.h |    1 +
 3 files changed, 3 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index f6485a8..cf3c753 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1244,6 +1244,7 @@  static void intel_ddi_post_disable(struct intel_encoder *intel_encoder)
 	if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) {
 		struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 		intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF);
+		edp_panel_vdd_on(intel_dp);
 		intel_edp_panel_off(intel_dp);
 	}
 
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index aed08bb..c911105 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -91,7 +91,6 @@  static struct intel_dp *intel_attached_dp(struct drm_connector *connector)
 }
 
 static void intel_dp_link_down(struct intel_dp *intel_dp);
-static void edp_panel_vdd_on(struct intel_dp *intel_dp);
 static void edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync);
 
 static int
@@ -1103,7 +1102,7 @@  static  u32 ironlake_get_pp_control(struct intel_dp *intel_dp)
 	return control;
 }
 
-static void edp_panel_vdd_on(struct intel_dp *intel_dp)
+void edp_panel_vdd_on(struct intel_dp *intel_dp)
 {
 	struct drm_device *dev = intel_dp_to_dev(intel_dp);
 	struct drm_i915_private *dev_priv = dev->dev_private;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 713009b..5b8724b 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -737,6 +737,7 @@  void intel_edp_panel_off(struct intel_dp *intel_dp);
 void intel_edp_psr_enable(struct intel_dp *intel_dp);
 void intel_edp_psr_disable(struct intel_dp *intel_dp);
 void intel_edp_psr_update(struct drm_device *dev);
+void edp_panel_vdd_on(struct intel_dp *intel_dp);
 
 
 /* intel_dsi.c */