[PATCH v3 01/14] pci: Update the highest subordinate bus number for bridge setup

Masami Hiramatsu
2021-05-10T06:31:05Z

Update the highest subordinate bus number after probing the devices
under the bus for setting up the bridge correctly.
The commit 42f3663a3f67 ("pci: Update to use new sequence numbers")
removed this but it is required if a PCIe bridge is under the bus.

Fixes: 42f3663a3f67 ("pci: Update to use new sequence numbers")
Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Tim Harvey <tharvey@gateworks.com>
---
drivers/pci/pci-uclass.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c
index dfd54b339f..f463ef3550 100644
--- a/drivers/pci/pci-uclass.c
+++ b/drivers/pci/pci-uclass.c
@@ -646,6 +646,9 @@ int dm_pci_hose_probe_bus(struct udevice *bus)
return log_msg_ret("probe", ret);
}

+ if (!ea_pos)
+ sub_bus = pci_get_bus_max();
+
dm_pciauto_postscan_setup_bridge(bus, sub_bus);

return sub_bus;