Since there is overlap in supported devices, both modules load, but only one will bind to a particular device depending on the model and user's configuration.
amdgpu binds to all display class devices with VID 0x1002 and then determines whether or not to bind to a device based on whether the individual device is supported by the driver or not. Log that case, so users looking at the logs know what is going on. Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2608 Signed-off-by: Paul Menzel <pmen...@molgen.mpg.de> --- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 86fbb4138285..410ff918c350 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -2062,8 +2062,10 @@ static int amdgpu_pci_probe(struct pci_dev *pdev, /* skip devices which are owned by radeon */ for (i = 0; i < ARRAY_SIZE(amdgpu_unsupported_pciidlist); i++) { - if (amdgpu_unsupported_pciidlist[i] == pdev->device) + if (amdgpu_unsupported_pciidlist[i] == pdev->device) { + DRM_INFO("This hardware is only supported by radeon."); return -ENODEV; + } } if (amdgpu_aspm == -1 && !pcie_aspm_enabled(pdev)) -- 2.40.1
