drm/amdgpu: disable legacy path of firmware check if powerplay is enabled

Powerplay will use a different interface once it's integrated.  These
legacy pathes will be removed once powerplay is enabled by default.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c

@@ -2902,6 +2902,7 @@ static int gfx_v8_0_rlc_resume(struct amdgpu_device *adev)
 
 	gfx_v8_0_rlc_reset(adev);
 
+	if (!amdgpu_powerplay) {
 		if (!adev->firmware.smu_load) {
 			/* legacy rlc firmware loading */
 			r = gfx_v8_0_rlc_load_microcode(adev);
@@ -2913,6 +2914,7 @@ static int gfx_v8_0_rlc_resume(struct amdgpu_device *adev)
 			if (r)
 				return -EINVAL;
 		}
+	}
 
 	gfx_v8_0_rlc_start(adev);
 
@@ -3802,6 +3804,7 @@ static int gfx_v8_0_cp_resume(struct amdgpu_device *adev)
 	if (!(adev->flags & AMD_IS_APU))
 		gfx_v8_0_enable_gui_idle_interrupt(adev, false);
 
+	if (!amdgpu_powerplay) {
 		if (!adev->firmware.smu_load) {
 			/* legacy firmware loading */
 			r = gfx_v8_0_cp_gfx_load_microcode(adev);
@@ -3832,6 +3835,7 @@ static int gfx_v8_0_cp_resume(struct amdgpu_device *adev)
 			if (r)
 				return -EINVAL;
 		}
+	}
 
 	r = gfx_v8_0_cp_gfx_resume(adev);
 	if (r)

drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c

@@ -727,6 +727,7 @@ static int sdma_v3_0_start(struct amdgpu_device *adev)
 {
 	int r, i;
 
+	if (!amdgpu_powerplay) {
 		if (!adev->firmware.smu_load) {
 			r = sdma_v3_0_load_microcode(adev);
 			if (r)
@@ -741,6 +742,7 @@ static int sdma_v3_0_start(struct amdgpu_device *adev)
 					return -EINVAL;
 			}
 		}
+	}
 
 	/* unhalt the MEs */
 	sdma_v3_0_enable(adev, true);