[PATCH] drm/amd/powerplay: fix compile error with ARCH=arc

[Evan Quan]

Fix the compile error below:
drivers/gpu/drm/amd/amdgpu/../powerplay/smu_v11_0.c: In function 'smu_v11_0_init_microcode':
>> arch/arc/include/asm/bug.h:22:2: error: implicit declaration of function 'pr_warn'; did you mean 'pci_warn'? [-Werror=implicit-function-declaration]
      22 |  pr_warn("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
         |  ^~~~~~~
drivers/gpu/drm/amd/amdgpu/../powerplay/smu_v11_0.c:176:3: note: in expansion of macro 'BUG'
     176 |   BUG();

Change-Id: I4e969082c41f8a8c91f1b0d19eb853eb0a2e0c0d
Reported-by: kernel test robot <lkp at intel.com>
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
 drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index 677f8adb920c..48e15885e9c3 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -173,7 +173,8 @@ int smu_v11_0_init_microcode(struct smu_context *smu)
 		chip_name = "sienna_cichlid";
 		break;
 	default:
-		BUG();
+		dev_err(adev->dev, "Unsupported ASIC type %d\n", adev->asic_type);
+		return -EINVAL;
 	}
 
 	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_smc.bin", chip_name);
-- 
2.27.0