drm/radeon: fix UVD suspend error

I met a bug recently and the kernel log:

[  330.171875] radeon 0000:03:00.0: couldn't schedule ib
[  330.175781] [drm:radeon_uvd_suspend [radeon]] *ERROR* Error destroying UVD (-22)!

In radeon drivers, using UVD suspend is as follows:

if (rdev->has_uvd) {
        uvd_v1_0_fini(rdev);
        radeon_uvd_suspend(rdev);
}

In radeon_ib_schedule function, we check the 'ring->ready' state,
but in uvd_v1_0_fini funciton, we've cleared the ready state.
So, just modify the suspend code flow to fix error.
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Qiang Ma <maqianga@uniontech.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/cik.c

@@ -8517,8 +8517,8 @@ int cik_suspend(struct radeon_device *rdev)
 	cik_cp_enable(rdev, false);
 	cik_sdma_enable(rdev, false);
 	if (rdev->has_uvd) {
-		uvd_v1_0_fini(rdev);
 		radeon_uvd_suspend(rdev);
+		uvd_v1_0_fini(rdev);
 	}
 	if (rdev->has_vce)
 		radeon_vce_suspend(rdev);

drivers/gpu/drm/radeon/evergreen.c

@@ -5156,8 +5156,8 @@ int evergreen_suspend(struct radeon_device *rdev)
 	radeon_pm_suspend(rdev);
 	radeon_audio_fini(rdev);
 	if (rdev->has_uvd) {
-		uvd_v1_0_fini(rdev);
 		radeon_uvd_suspend(rdev);
+		uvd_v1_0_fini(rdev);
 	}
 	r700_cp_stop(rdev);
 	r600_dma_stop(rdev);

drivers/gpu/drm/radeon/ni.c

@@ -2323,8 +2323,8 @@ int cayman_suspend(struct radeon_device *rdev)
 	cayman_cp_enable(rdev, false);
 	cayman_dma_stop(rdev);
 	if (rdev->has_uvd) {
-		uvd_v1_0_fini(rdev);
 		radeon_uvd_suspend(rdev);
+		uvd_v1_0_fini(rdev);
 	}
 	evergreen_irq_suspend(rdev);
 	radeon_wb_disable(rdev);

drivers/gpu/drm/radeon/r600.c

@@ -3232,8 +3232,8 @@ int r600_suspend(struct radeon_device *rdev)
 	radeon_audio_fini(rdev);
 	r600_cp_stop(rdev);
 	if (rdev->has_uvd) {
-		uvd_v1_0_fini(rdev);
 		radeon_uvd_suspend(rdev);
+		uvd_v1_0_fini(rdev);
 	}
 	r600_irq_suspend(rdev);
 	radeon_wb_disable(rdev);

drivers/gpu/drm/radeon/rv770.c

@@ -1894,8 +1894,8 @@ int rv770_suspend(struct radeon_device *rdev)
 	radeon_pm_suspend(rdev);
 	radeon_audio_fini(rdev);
 	if (rdev->has_uvd) {
-		uvd_v1_0_fini(rdev);
 		radeon_uvd_suspend(rdev);
+		uvd_v1_0_fini(rdev);
 	}
 	r700_cp_stop(rdev);
 	r600_dma_stop(rdev);

drivers/gpu/drm/radeon/si.c

@@ -6800,8 +6800,8 @@ int si_suspend(struct radeon_device *rdev)
 	si_cp_enable(rdev, false);
 	cayman_dma_stop(rdev);
 	if (rdev->has_uvd) {
-		uvd_v1_0_fini(rdev);
 		radeon_uvd_suspend(rdev);
+		uvd_v1_0_fini(rdev);
 	}
 	if (rdev->has_vce)
 		radeon_vce_suspend(rdev);