[PATCH] drm/amdgpu: log when amdgpu.dc=1 but ASIC is unsupported

[Simon Ser]

This makes it easier to figure out whether the kernel parameter has been
taken into account.

Signed-off-by: Simon Ser <contact at emersion.fr>
Cc: Harry Wentland <hwentlan at amd.com>
Cc: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 7a6c837c0a85..10618353383f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2525,6 +2525,9 @@ bool amdgpu_device_asic_has_dc_support(enum amd_asic_type asic_type)
 		return amdgpu_dc != 0;
 #endif
 	default:
+		if (amdgpu_dc > 0)
+			DRM_INFO("Display Core has been requested via kernel parameter "
+					 "but isn't supported by ASIC, ignoring\n");
 		return false;
 	}
 }
--
2.24.0