Re: [PATCH 0/2] PCI: Add quirk for Fintek F81504/508/512 on Skylake

[Bjorn Helgaas]

Hi Peter,

On Mon, Nov 07, 2016 at 05:22:30PM +0800, Ji-Ze Hong (Peter Hong) wrote:
> We had tested Fintek F81504/508/512 PCIe-to-UART/GPIO on Intel Skylake
> platform. It's maybe flood AER correctable error interrupt and slow down
> the system boot. It's the same issue about below link:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1521173

The issue in the Launchpad report above is a bug in the PCI AER
driver.  We need to fix that problem, not add quirks to avoid the
problem.

I think it's a pretty straightforward problem:
https://marc.info/?l=linux-pci&m=145140470807043

I haven't had time to fix it myself, so it'd be great if somebody
else would step up and fix it.

> and this IC will malfunctional after suspend/resume (S3, D0->D3->D0) on
> Skylake platform. 
> 
> The first patch will use parent AER interrupt mask to prevent generating
> correctable error interrupt, the  and second will prevent the IC malfunctional
> after D3.
> 
> Ji-Ze Hong (Peter Hong) (2):
>   PCI: Add quirk for Fintek F81504/508/512 AER issue
>   PCI: Add quirk for Fintek F81504/508/512 D3 issue
> 
>  drivers/pci/quirks.c    | 50 +++++++++++++++++++++++++++++++++++++++++++++++++
>  include/linux/pci_ids.h |  5 +++++
>  2 files changed, 55 insertions(+)
> 
> -- 
> 1.9.1
> 
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