From 4cef2ac4c795e4fffd6d35ea110f1273e3cb74bf Mon Sep 17 00:00:00 2001 From: Ray Wu Date: Fri, 27 Feb 2026 16:09:19 -0500 Subject: drm/amd/display: Introduce power module on Linux [Why] Other OS supported by DC uses the power module to manage panel power features such as backlight and self-refresh. It contains enhancements on top what amdgpu_dm is doing today that can benefit power. [How] Introduce the power module. It's currently not being used anywhere, a future change will incorporate it into amdgpu_dm. Reviewed-by: Leo Li Signed-off-by: Ray Wu Signed-off-by: Leo Li Signed-off-by: Chenyu Chen Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm') diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c index 8550d5e8b753..0ef7435ffda9 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c @@ -62,3 +62,14 @@ void dm_trace_smu_exit(bool success, uint32_t response, struct dc_context *ctx) } /**** power component interfaces ****/ + +bool dm_query_extended_brightness_caps(struct dc_context *ctx, + enum dm_acpi_display_type display, + struct dm_acpi_atif_backlight_caps *pCaps) +{ + /* + * TODO: Implement query for extended backlight caps. + * Some plumbing required, see amdgpu_atif_query_backlight_caps() + */ + return false; +} -- cgit v1.2.3