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-rw-r--r--0004-drm-i915-edp-Only-use-the-alternate-fixed-mode-if-it.patch42
1 files changed, 42 insertions, 0 deletions
diff --git a/0004-drm-i915-edp-Only-use-the-alternate-fixed-mode-if-it.patch b/0004-drm-i915-edp-Only-use-the-alternate-fixed-mode-if-it.patch
new file mode 100644
index 00000000000..5d36d15ac47
--- /dev/null
+++ b/0004-drm-i915-edp-Only-use-the-alternate-fixed-mode-if-it.patch
@@ -0,0 +1,42 @@
+From cf45be4971bdd769c09e2a11db483510cd0bcc5f Mon Sep 17 00:00:00 2001
+Message-Id: <cf45be4971bdd769c09e2a11db483510cd0bcc5f.1515173964.git.jan.steffens@gmail.com>
+In-Reply-To: <0b716bdb952b678d9bb5eb32198dbc82ec492df2.1515173964.git.jan.steffens@gmail.com>
+References: <0b716bdb952b678d9bb5eb32198dbc82ec492df2.1515173964.git.jan.steffens@gmail.com>
+From: Jim Bride <jim.bride@linux.intel.com>
+Date: Mon, 6 Nov 2017 13:38:57 -0800
+Subject: [PATCH 6/6] drm/i915/edp: Only use the alternate fixed mode if it's
+ asked for
+
+In commit dc911f5bd8aa ("drm/i915/edp: Allow alternate fixed mode for
+eDP if available."), the patch allows for the use of an alternate fixed
+mode if it is available, but the patch was not ensuring that the only
+time the alternate mode is used is when it is specifically requested.
+This patch adds an additional comparison to intel_edp_compare_alt_mode
+to ensure that we only use the alternate mode if it is directly
+requested.
+
+Fixes: dc911f5bd8aac ("Allow alternate fixed mode for eDP if available.")
+Cc: David Weinehall <david.weinehall@linux.intel.com>
+Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
+Signed-off-by: Jim Bride <jim.bride@linux.intel.com>
+---
+ drivers/gpu/drm/i915/intel_dp.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
+index 09f274419eea1c74..838cee312e8e6978 100644
+--- a/drivers/gpu/drm/i915/intel_dp.c
++++ b/drivers/gpu/drm/i915/intel_dp.c
+@@ -1632,7 +1632,8 @@ static bool intel_edp_compare_alt_mode(struct drm_display_mode *m1,
+ m1->vdisplay == m2->vdisplay &&
+ m1->vsync_start == m2->vsync_start &&
+ m1->vsync_end == m2->vsync_end &&
+- m1->vtotal == m2->vtotal);
++ m1->vtotal == m2->vtotal &&
++ m1->vrefresh == m2->vrefresh);
+ return bres;
+ }
+
+--
+2.15.1
+