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misc: pci_endpoint_test: Document policy about adding pci_device_id

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Add a comment suggesting that if the endpoint controller Vendor and Device
ID are programmable, an existing entry might be usable for testing without
having to add an entry to pci_endpoint_test_tbl[].

Link: https://lore.kernel.org/linux-pci/20240611125057.1232873-6-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
This commit is contained in:
Yoshihiro Shimoda 2024-06-11 21:50:57 +09:00 committed by Bjorn Helgaas
parent a50c7de060
commit 76084965a9
1 changed files with 4 additions and 0 deletions
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4
drivers/misc/pci_endpoint_test.c
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@ -1014,6 +1014,10 @@ static const struct pci_endpoint_test_data rk3588_data = {
.irq_type = IRQ_TYPE_MSI, .irq_type = IRQ_TYPE_MSI,
}; };
/*
* If the controller's Vendor/Device ID are programmable, you may be able to
* use one of the existing entries for testing instead of adding a new one.
*/
static const struct pci_device_id pci_endpoint_test_tbl[] = { static const struct pci_device_id pci_endpoint_test_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_DRA74x), { PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_DRA74x),
.driver_data = (kernel_ulong_t)&default_data, .driver_data = (kernel_ulong_t)&default_data,