On CZ/ST systems with AZ rather than ACP audio, we need to bail
early in hw_fini since there is nothing to do.

bug: https://bugs.freedesktop.org/show_bug.cgi?id=98276

Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Cc: sta...@vger.kernel.org
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
index 176c3d7..1130f9d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
@@ -395,9 +395,12 @@ static int acp_hw_fini(void *handle)
 {
        int i, ret;
        struct device *dev;
-
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+       /* return early if no ACP */
+       if (!adev->acp.acp_genpd)
+               return 0;
+
        for (i = 0; i < ACP_DEVS ; i++) {
                dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
                ret = pm_genpd_remove_device(&adev->acp.acp_genpd->gpd, dev);
-- 
2.5.5

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