[PATCH v7 7/7] misc: pci_endpoint_test: Document a policy about adding pci_device_id

From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
To: lpieralisi@kernel.org, kw@linux.com, robh@kernel.org,
	bhelgaas@google.com, krzysztof.kozlowski+dt@linaro.org,
	conor+dt@kernel.org, jingoohan1@gmail.com, mani@kernel.org
Cc: marek.vasut+renesas@gmail.com, linux-pci@vger.kernel.org,
	devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
	Frank Li <Frank.li@nxp.com>
Subject: [PATCH v7 7/7] misc: pci_endpoint_test: Document a policy about adding pci_device_id
Date: Mon, 15 Apr 2024 17:11:35 +0900	[thread overview]
Message-ID: <20240415081135.3814373-8-yoshihiro.shimoda.uh@renesas.com> (raw)
In-Reply-To: <20240415081135.3814373-1-yoshihiro.shimoda.uh@renesas.com>

To avoid becoming struct pci_device_id pci_endpoint_test_tbl longer
and longer, document a policy. For example, if PCIe endpoint controller
can configure vendor id and/or product id, you can reuse one of
existing entries to test.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
Cc: Frank Li <Frank.li@nxp.com>
---
 drivers/misc/pci_endpoint_test.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c
index c38a6083f0a7..727db13b6450 100644
--- a/drivers/misc/pci_endpoint_test.c
+++ b/drivers/misc/pci_endpoint_test.c
@@ -980,6 +980,7 @@ static const struct pci_endpoint_test_data j721e_data = {
 	.irq_type = IRQ_TYPE_MSI,
 };
 
+/* Do not add a new entry if the controller can use existing VID:PID combinations */
 static const struct pci_device_id pci_endpoint_test_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_DRA74x),
 	  .driver_data = (kernel_ulong_t)&default_data,
-- 
2.25.1

