drm/amdgpu/gfx9: gfx_v9_0_enable_gfx_static_mg_power_gating() can be static

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c

@@ -1964,7 +1964,7 @@ static void gfx_v9_0_enable_gfx_pipeline_powergating(struct amdgpu_device *adev,
 		data = RREG32(SOC15_REG_OFFSET(GC, 0, mmDB_RENDER_CONTROL));
 }
 
-void gfx_v9_0_enable_gfx_static_mg_power_gating(struct amdgpu_device *adev,
+static void gfx_v9_0_enable_gfx_static_mg_power_gating(struct amdgpu_device *adev,
 						       bool enable)
 {
 	uint32_t data, default_data;
@@ -1978,7 +1978,7 @@ void gfx_v9_0_enable_gfx_static_mg_power_gating(struct amdgpu_device *adev,
 		WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_PG_CNTL), data);
 }
 
-void gfx_v9_0_enable_gfx_dynamic_mg_power_gating(struct amdgpu_device *adev,
+static void gfx_v9_0_enable_gfx_dynamic_mg_power_gating(struct amdgpu_device *adev,
 						bool enable)
 {
 	uint32_t data, default_data;