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From b9cd07d32e0714925d670cbf2b8c1f5e8d5f323e Mon Sep 17 00:00:00 2001
From: "Leo (Sunpeng) Li" <sunpeng.li@amd.com>
Date: Thu, 19 Jul 2018 08:22:16 -0400
Subject: [PATCH 5040/5725] drm/amd/display: Use requested HDMI aspect ratio
[Why]
The DRM mode's HDMI picture aspect ratio field was never saved in
dc_stream's timing struct. This causes us to mistake a new stream to
have the same timings as the old, even though the user has requested a
different aspect ratio.
[How]
Save DRM's aspect ratio field within dc_stream's timing struct.
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=107153
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Mikita Lipski <Mikita.Lipski@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index c5c59cb..685b2fea 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2300,13 +2300,8 @@ convert_color_depth_from_display_info(const struct drm_connector *connector)
static enum dc_aspect_ratio
get_aspect_ratio(const struct drm_display_mode *mode_in)
{
- int32_t width = mode_in->crtc_hdisplay * 9;
- int32_t height = mode_in->crtc_vdisplay * 16;
-
- if ((width - height) < 10 && (width - height) > -10)
- return ASPECT_RATIO_16_9;
- else
- return ASPECT_RATIO_4_3;
+ /* 1-1 mapping, since both enums follow the HDMI spec. */
+ return (enum dc_aspect_ratio) mode_in->picture_aspect_ratio;
}
static enum dc_color_space
--
2.7.4
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