On Tue, Dec 07, 2021 at 10:16:32AM +0000, Lorenzo Pieralisi wrote:

On Tue, Nov 30, 2021 at 11:56:32AM +0000, Lorenzo Pieralisi wrote:

quoted

On Tue, Nov 23, 2021 at 06:06:33PM +0000, Marc Zyngier wrote:

quoted

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 (local)

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(-)

Hi Bjorn,

this series is v5.16-rcX material for PCI fixes, can you pick patches
1,3 up please ?

Hi Bjorn,

Arnd acked patch 2, can we send the whole series upstream for one
of the upcoming -rcX please ? It is fixing code that was merged
in the last merge window.

I put all three of these on for-linus and will ask Linus to pull them
before -rc5.

I do have open questions about the PERST# timing, but we can update
this if needed.

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