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 565be05060598c13f05a5f1715098da8114ee864..b842eafdf66c2ed81e9cdca7bea53f58821cf52f 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
@@ -77,13 +77,6 @@ void dal_isr_release_lock(struct dc_context *ctx)
  * End-of-IRQ Interfaces.
  *****************************************************************************/
 
-bool dm_get_platform_info(struct dc_context *ctx,
-			struct platform_info_params *params)
-{
-	/*TODO*/
-	return false;
-}
-
 bool dm_write_persistent_data(struct dc_context *ctx,
 		const struct dc_sink *sink,
 		const char *module_name,
diff --git a/drivers/gpu/drm/amd/display/dc/dm_services.h b/drivers/gpu/drm/amd/display/dc/dm_services.h
index f3f9a401160cc7f23d927011b1c3d08253e921bd..11a0abfd341870c4137f9233243873734290bc90 100644
--- a/drivers/gpu/drm/amd/display/dc/dm_services.h
+++ b/drivers/gpu/drm/amd/display/dc/dm_services.h
@@ -282,38 +282,6 @@ bool dm_pp_get_static_clocks(
 
 /****** end of PP interfaces ******/
 
-enum platform_method {
-	PM_GET_AVAILABLE_METHODS = 1 << 0,
-	PM_GET_LID_STATE = 1 << 1,
-	PM_GET_EXTENDED_BRIGHNESS_CAPS = 1 << 2
-};
-
-struct platform_info_params {
-	enum platform_method method;
-	void *data;
-};
-
-struct platform_info_brightness_caps {
-	uint8_t ac_level_percentage;
-	uint8_t dc_level_percentage;
-};
-
-struct platform_info_ext_brightness_caps {
-	struct platform_info_brightness_caps basic_caps;
-	struct data_point {
-		uint8_t luminance;
-		uint8_t	signal_level;
-	} data_points[99];
-
-	uint8_t	data_points_num;
-	uint8_t	min_input_signal;
-	uint8_t	max_input_signal;
-};
-
-bool dm_get_platform_info(
-	struct dc_context *ctx,
-	struct platform_info_params *params);
-
 struct persistent_data_flag {
 	bool save_per_link;
 	bool save_per_edid;