An endpoint is allowed to issue CRS following an FLR request to indicate
that it is not ready to accept new requests. Changing the polling mechanism
in FLR wait function to go read the vendor ID instead of the command/status
register. A CRS indication will only be given if the address to be read is
vendor ID.
Signed-off-by: Sinan Kaya <okaya@xxxxxxxxxxxxxx>
---
drivers/pci/pci.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index c8749b9..7580b00 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -3725,7 +3725,8 @@ static void pci_flr_wait(struct pci_dev *dev)
do {
msleep(100);
- pci_read_config_dword(dev, PCI_COMMAND, &id);
+ pci_bus_read_dev_vendor_id(dev->bus, dev->devfn, &id,
+ 60 * 1000);
} while (i++ < 10 && id == ~0);
if (id == ~0)
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
