From f729e63743f0fbd504a1464e9495c456f63ff7ef Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Fri, 28 Feb 2025 12:51:42 -0600 Subject: drm/amd: Pass luminance data to amdgpu_dm_backlight_caps The ATIF method on some systems will provide a backlight curve. Pass this curve into amdgpu_dm add it to the structures. Reviewed-by: Alex Hung Link: https://lore.kernel.org/r/20250228185145.186319-3-mario.limonciello@amd.com Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c index 515c6f32448d..b7f8f2ff143d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c @@ -394,6 +394,10 @@ static int amdgpu_atif_query_backlight_caps(struct amdgpu_atif *atif) characteristics.max_input_signal; atif->backlight_caps.ac_level = characteristics.ac_level; atif->backlight_caps.dc_level = characteristics.dc_level; + atif->backlight_caps.data_points = characteristics.number_of_points; + memcpy(atif->backlight_caps.luminance_data, + characteristics.data_points, + sizeof(atif->backlight_caps.luminance_data)); out: kfree(info); return err; -- cgit v1.2.3