1 files changed, 33 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/4024-drm-amd-display-Fix-dim-display-on-DCE11.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/4024-drm-amd-display-Fix-dim-display-on-DCE11.patch
new file mode 100644
index 00000000..c80f5c9e
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/4024-drm-amd-display-Fix-dim-display-on-DCE11.patch
@@ -0,0 +1,33 @@
+From 9eb677d09c3c41e06e0371d9eafe259eb2f8913c Mon Sep 17 00:00:00 2001
+From: "Leo (Sunpeng) Li" <sunpeng.li@amd.com>
+Date: Thu, 29 Mar 2018 17:04:12 -0400
+Subject: [PATCH 4024/4131] drm/amd/display: Fix dim display on DCE11
+
+Before programming the input gamma, check that we're not using the
+identity correction.
+
+Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
+Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
+Acked-by: Harry Wentland <harry.wentland@amd.com>
+---
+ drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+index 99d1922..f385b18 100644
+--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
++++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+@@ -280,7 +280,9 @@ dce110_set_input_transfer_func(struct pipe_ctx *pipe_ctx,
+ 	build_prescale_params(&prescale_params, plane_state);
+ 	ipp->funcs->ipp_program_prescale(ipp, &prescale_params);
+ 
+-	if (plane_state->gamma_correction && dce_use_lut(plane_state->format))
++	if (plane_state->gamma_correction &&
++			!plane_state->gamma_correction->is_identity &&
++			dce_use_lut(plane_state->format))
+ 		ipp->funcs->ipp_program_input_lut(ipp, plane_state->gamma_correction);
+ 
+ 	if (tf == NULL) {
+-- 
+2.7.4
+