[PATCH 1/3] pci: Update the highest subordinate bus number for bridge setup

Masami Hiramatsu masami.hiramatsu at linaro.org
Sat Apr 17 00:30:48 CEST 2021


Hi Tim,

Thanks for picking it up. I'll drop this patch from the next version.

Thank you,

2021年4月17日(土) 6:53 Tim Harvey <tharvey at gateworks.com>:
>
> 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
>


-- 
Masami Hiramatsu


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