When CONFIG_NVMEM is disabled, reading the optional "shader-present"
nvmem cell can return -EOPNOTSUPP.
Treat this the same as the cell being absent so panthor can continue
probing on platforms that do not provide shader-present fuses through
nvmem.
Fixes: c40b50c3cfbe ("drm/panthor: Implement reading shader_present from nvmem")
Reviewed-by: Boris Brezillon <[email protected]>
Reviewed-by: Steven Price <[email protected]>
Signed-off-by: Karunika Choo <[email protected]>
---
v1:
- Picked up R-bs from Boris and Steve
- Added Fixes tag
drivers/gpu/drm/panthor/panthor_hw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/panthor/panthor_hw.c
b/drivers/gpu/drm/panthor/panthor_hw.c
index 7e315708ca7ca..4c96573b649a1 100644
--- a/drivers/gpu/drm/panthor/panthor_hw.c
+++ b/drivers/gpu/drm/panthor/panthor_hw.c
@@ -182,7 +182,7 @@ static int overload_shader_present(struct panthor_device
*ptdev)
&contents);
if (!ret)
ptdev->gpu_info.shader_present = contents;
- else if (ret == -ENOENT)
+ else if (ret == -ENOENT || ret == -EOPNOTSUPP)
return 0;
else
return dev_err_probe(ptdev->base.dev, ret,
--
2.43.0
