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Message-Id: <20230810160314.48225-18-mwen@igalia.com>
Date: Thu, 10 Aug 2023 15:02:57 -0100
From: Melissa Wen <mwen@...lia.com>
To: amd-gfx@...ts.freedesktop.org,
Harry Wentland <harry.wentland@....com>,
Rodrigo Siqueira <Rodrigo.Siqueira@....com>,
sunpeng.li@....com, Alex Deucher <alexander.deucher@....com>,
dri-devel@...ts.freedesktop.org, christian.koenig@....com,
Xinhui.Pan@....com, airlied@...il.com, daniel@...ll.ch
Cc: Joshua Ashton <joshua@...ggi.es>,
Sebastian Wick <sebastian.wick@...hat.com>,
Xaver Hugl <xaver.hugl@...il.com>,
Shashank Sharma <Shashank.Sharma@....com>,
Nicholas Kazlauskas <nicholas.kazlauskas@....com>,
sungjoon.kim@....com, Alex Hung <alex.hung@....com>,
Pekka Paalanen <pekka.paalanen@...labora.com>,
Simon Ser <contact@...rsion.fr>, kernel-dev@...lia.com,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 17/34] drm/amd/display: set sdr_ref_white_level to 80 for out_transfer_func
From: Joshua Ashton <joshua@...ggi.es>
Otherwise this is just initialized to 0. This needs to actually have a
value so that compute_curve can work for PQ EOTF.
Reviewed-by: Harry Wentland <harry.wentland@....com>
Signed-off-by: Joshua Ashton <joshua@...ggi.es>
Co-developed-by: Melissa Wen <mwen@...lia.com>
Signed-off-by: Melissa Wen <mwen@...lia.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
index 0188e82d1fdd..68e9f2c62f2e 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
@@ -72,6 +72,7 @@
*/
#define MAX_DRM_LUT_VALUE 0xFFFF
+#define SDR_WHITE_LEVEL_INIT_VALUE 80
/**
* amdgpu_dm_init_color_mod - Initialize the color module.
@@ -525,6 +526,7 @@ static int amdgpu_dm_set_atomic_regamma(struct dc_stream_state *stream,
*/
out_tf->type = TF_TYPE_DISTRIBUTED_POINTS;
out_tf->tf = tf;
+ out_tf->sdr_ref_white_level = SDR_WHITE_LEVEL_INIT_VALUE;
ret = __set_output_tf(out_tf, regamma_lut, regamma_size, has_rom);
} else {
--
2.40.1
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