From 11d433a68cdef0dbbd4d6cb3a5ec331a083e9e28 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Mon, 2 Dec 2019 14:25:11 -0800
Subject: drm/i915/display: Check the old state to find port sync slave
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Git-commit: e815aff59dcf3f4aaf7ca061b07c0a6ef63f2351
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
If the CRTC is going from enabled to disabled and it is a port sync
slave, it needs to check to the old state to be disabled before the
port sync master.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191202222513.337777-1-jose.souza@intel.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/intel_display.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index c6b1e7491cad..ec0b55caaf75 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -14492,8 +14492,8 @@ static void intel_commit_modeset_disables(struct intel_atomic_state *state)
* slave CRTCs are disabled first and then master CRTC since
* Slave vblanks are masked till Master Vblanks.
*/
- if (is_trans_port_sync_mode(new_crtc_state)) {
- if (is_trans_port_sync_master(new_crtc_state))
+ if (is_trans_port_sync_mode(old_crtc_state)) {
+ if (is_trans_port_sync_master(old_crtc_state))
intel_trans_port_sync_modeset_disables(state,
crtc,
old_crtc_state,
--
2.28.0