Re: [PATCH 1/4] PCI: Add AMD USB4 host router device IDs

Sanjay R Mehta
2021-08-02T18:09:51Z

On 8/2/2021 8:42 PM, Mika Westerberg wrote:
> [CAUTION: External Email]
>
> On Mon, Aug 02, 2021 at 07:58:17AM -0500, Sanjay R Mehta wrote:
>> From: Sanjay R Mehta <sanju.mehta@amd.com>
>>
>> This patch enables support for AMD USB4 host router.
>>
>> Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
>> Signed-off-by: Sanjay R Mehta <sanju.mehta@amd.com>
>> ---
>> drivers/thunderbolt/nhi.c | 4 ++++
>> include/linux/pci_ids.h | 2 ++
>> 2 files changed, 6 insertions(+)
>>
>> diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
>> index fa44332..d7d9c4b 100644
>> --- a/drivers/thunderbolt/nhi.c
>> +++ b/drivers/thunderbolt/nhi.c
>> @@ -1338,6 +1338,10 @@ static struct pci_device_id nhi_ids[] = {
>> { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADL_NHI1),
>> .driver_data = (kernel_ulong_t)&icl_nhi_ops },
>>
>> + /* AMD USB4 host */
>> + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_USB4_HIA0) },
>> + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_USB4_HIA1) },
>> +
>> /* Any USB4 compliant host */
>> { PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_USB4, ~0) },
>>
>> diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
>> index 4bac183..6d50019 100644
>> --- a/include/linux/pci_ids.h
>> +++ b/include/linux/pci_ids.h
>> @@ -604,6 +604,8 @@
>> #define PCI_DEVICE_ID_AMD_HUDSON2_SMBUS 0x780b
>> #define PCI_DEVICE_ID_AMD_HUDSON2_IDE 0x780c
>> #define PCI_DEVICE_ID_AMD_KERNCZ_SMBUS 0x790b
>> +#define PCI_DEVICE_ID_AMD_USB4_HIA0 0x162e
>> +#define PCI_DEVICE_ID_AMD_USB4_HIA1 0x162f
>
> No need to add them here (and you actually should not since these IDs
> are not shared between multiple drivers, see the top level comment in
> this header).
>
> I suggest adding these to drivers/thunderbolt/nhi.h instead.
>
Thanks Mika. Agree and will add it in drivers/thunderbolt/nhi.h .

>>
>> #define PCI_VENDOR_ID_TRIDENT 0x1023
>> #define PCI_DEVICE_ID_TRIDENT_4DWAVE_DX 0x2000
>> --
>> 2.7.4