[PATCH 1/3] pci: Update the highest subordinate bus number for bridge setup
Tim Harvey
tharvey at gateworks.com
Fri Apr 16 23:53:46 CEST 2021
From: Masami Hiramatsu <masami.hiramatsu at linaro.org>
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 at linaro.org>
---
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;
--
2.17.1
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