[PATCH v3 0/3] PCI: apple: Assorted #PERST fixes

Marc Zyngier
2021-11-23T17:54:22Z

Apologies for the rapid fire (I tend to be much more conservative when
resending series), but given that this series has a direct impact on
other projects (such as u-boot), I'm trying to converge as quickly as
possible.

This series aims at fixing a number of issues for the recently merged
Apple PCIe driver, all revolving around the mishandling of #PERST:

- we didn't properly drive #PERST, and we didn't follow the specified
timings

- the DT had the wrong polarity, which has impacts on the driver
itself

Hopefully, this should address all the issues reported so far.

* From v2:
- Fixed DT
- Fixed #PERST polarity in the driver
- Collected Pali's ack on patch #1

[1] https://lore.kernel.org/r/20211122104156.518063-1-maz@kernel.org

Marc Zyngier (3):
PCI: apple: Follow the PCIe specifications when resetting the port
arm64: dts: apple: t8103: Fix PCIe #PERST polarity
PCI: apple: Fix #PERST polarity

arch/arm64/boot/dts/apple/t8103.dtsi | 7 ++++---
drivers/pci/controller/pcie-apple.c | 12 +++++++++++-
2 files changed, 15 insertions(+), 4 deletions(-)

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2.30.2