[RFC PATCH v2 0/2] PCI: rockchip-host: Support quirky devices

[Geraldo Nascimento <geraldogabriel@gmail.com>]

Hi folks,

while I understand there are lots of already-working PCIe devices
on RK3399 there are also many quirky devices which fail link
training and refuse to enumerate. This RFC series is meant to
alleviate this problem and has been tested on my Rock Pi N10.

Note that with these patches, link will train for quirky devices
but with Gen1 only and only one lane (x1). I have separate patches
for improving to Gen2 and all four lanes (x4). They don't depend on
this fix however and since I predict the present patches are bound
to be controversial, I decided to send the quality improvements
separately.

Hopefully this time the series will be threaded. Thanks Heiko!

Geraldo Nascimento (2):
  PCI: rockchip-host: Retry link training on failure without PERST#
  arm64: dts: rockchip: drop PCIe 3v3 always-on and boot-on

 .../dts/rockchip/rk3399pro-vmarc-som.dtsi     |   2 -
 drivers/pci/controller/pcie-rockchip-host.c   | 141 +++++++++++-------
 2 files changed, 87 insertions(+), 56 deletions(-)

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2.49.0