Change in coreboot[master]: pci_device: Write vendor ID to subsystem vendor ID

[Martin Roth (Code Review)]

Martin Roth has submitted this change and it was merged. ( https://review.coreboot.org/19467 )

Change subject: pci_device: Write vendor ID to subsystem vendor ID
......................................................................

pci_device: Write vendor ID to subsystem vendor ID

Write vendor/device id to subsystem vendor/device id
if they are not provided.

Change-Id: I5027331a6adf9109767415ba22dfcb17b35ef54b
Signed-off-by: Rizwan Qureshi 
Reviewed-on: https://review.coreboot.org/19467
Reviewed-by: Aaron Durbin 
Tested-by: build bot (Jenkins)
Reviewed-by: Philippe Mathieu-Daudé 
---
M src/device/pci_device.c
1 file changed, 7 insertions(+), 0 deletions(-)

Approvals:
  Aaron Durbin: Looks good to me, approved
  Philippe Mathieu-Daudé: Looks good to me, but someone else must approve
  build bot (Jenkins): Verified

diff --git a/src/device/pci_device.c b/src/device/pci_device.c
index b2e3c9a..e423151 100644
--- a/src/device/pci_device.c
+++ b/src/device/pci_device.c
@@ -599,8 +599,15 @@
    if (dev->on_mainboard && ops && ops->set_subsystem) {
    	if (CONFIG_SUBSYSTEM_VENDOR_ID)
    		dev->subsystem_vendor = CONFIG_SUBSYSTEM_VENDOR_ID;
+		else if (!dev->subsystem_vendor)
+			dev->subsystem_vendor = pci_read_config16(dev,
+							PCI_VENDOR_ID);
    	if (CONFIG_SUBSYSTEM_DEVICE_ID)
    		dev->subsystem_device = CONFIG_SUBSYSTEM_DEVICE_ID;
+		else if (!dev->subsystem_device)
+			dev->subsystem_device = pci_read_config16(dev,
+							PCI_DEVICE_ID);
+
    	printk(BIOS_DEBUG, "%s subsystem <- %04x/%04x\n",
    		dev_path(dev), dev->subsystem_vendor,
    		dev->subsystem_device);