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Date:   Fri, 15 Jul 2022 17:18:16 -0500
From:   Bjorn Helgaas <helgaas@kernel.org>
To:     Huacai Chen <chenhuacai@loongson.cn>
Cc:     Bjorn Helgaas <bhelgaas@google.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        Rob Herring <robh@kernel.org>,
        Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= <kw@linux.com>,
        linux-pci@vger.kernel.org, Jianmin Lv <lvjianmin@loongson.cn>,
        Xuefeng Li <lixuefeng@loongson.cn>,
        Huacai Chen <chenhuacai@gmail.com>,
        Jiaxun Yang <jiaxun.yang@flygoat.com>,
        Tiezhu Yang <yangtiezhu@loongson.cn>
Subject: Re: [PATCH V16 0/7] PCI: Loongson pci improvements and quirks
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On Thu, Jul 14, 2022 at 08:42:09PM +0800, Huacai Chen wrote:
> This patchset improves Loongson PCI controller driver and resolves some
> problems: LS2K/LS7A's PCI config space supports 1/2/4-bytes access, so
> the first patch use pci_generic_config_read()/pci_generic_config_write()
> for them; the second patch add ACPI init support which will be used by
> LoongArch; the third patch improves the mrrs quirk for LS7A chipset; The
> fourth patch add a new quirk for LS7A chipset to avoid poweroff/reboot
> failure, and the fifth patch add a new quirk for LS7A chipset to fix the
> multifunction devices' irq pin mappings.
> ...

> Huacai Chen, Tiezhu Yang and Jianmin Lv(6):
>  PCI/ACPI: Guard ARM64-specific mcfg_quirks
>  PCI: loongson: Use generic 8/16/32-bit config ops on LS2K/LS7A.
>  PCI: loongson: Add ACPI init support.
>  PCI: loongson: Don't access non-existant devices.
>  PCI: Add quirk for multifunction devices of LS7A.

I applied the above to pci/ctrl/loongson to get them out of the way.

>  PCI: loongson: Improve the MRRS quirk for LS7A.
>  PCI: Add quirk for LS7A to avoid reboot failure.

These touch core code in some sort of ugly ways and I'm still thinking
about them.