From: Andrew Jiang <Andrew.Jiang@amd.com>
Date: Mon, 6 Nov 2017 11:56:21 -0500
Subject: drm/amd/display: Report pitch_alignment for DCN
Git-commit: 2a875c41cd520399a72e4bef8779cf13d0c7ed14
Patch-mainline: v4.16-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Signed-off-by: Andrew Jiang <Andrew.Jiang@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/dc/dc.h                   |    1 +
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c |    2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -58,6 +58,7 @@ struct dc_caps {
 	uint32_t i2c_speed_in_khz;
 	unsigned int max_cursor_size;
 	unsigned int max_video_width;
+	int pitch_alignment;
 	bool dcc_const_color;
 	bool dynamic_audio;
 	bool is_apu;
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
@@ -1269,7 +1269,7 @@ static bool construct(
 	dc->caps.max_downscale_ratio = 200;
 	dc->caps.i2c_speed_in_khz = 100;
 	dc->caps.max_cursor_size = 256;
-
+	dc->caps.pitch_alignment = 64; /* Alignment is 64 on DCN1 */
 	dc->caps.max_slave_planes = 1;
 	dc->caps.is_apu = true;