Hi Jim, Jim Quinlan <jim2101024@xxxxxxxxx> (2023-04-06): > The current driver assumes the downstream devices can provide clkreq# for > ASPM. These commits accomodate devices w/ or w/o clkreq# and also handle > L1SS-capable devices. > > The Raspian Linux folks have already been using a PCIe RC property > "brcm,enable-l1ss". These commits use the same property, in a > backward-compatible manner, and the implementaion adds more detail and also > automatically identifies devices w/o a clkreq# signal, i.e. most devices > plugged into an RPi CM4 IO board. > > Jim Quinlan (3): > dt-bindings: PCI: brcmstb: Add two optional props > PCI: brcmstb: Clkreq# accomodations of downstream device > PCI: brcmstb: Allow setting the completion timeout > > .../bindings/pci/brcm,stb-pcie.yaml | 12 +++ > drivers/pci/controller/pcie-brcmstb.c | 93 +++++++++++++++++-- > 2 files changed, 95 insertions(+), 10 deletions(-) > > > base-commit: 99ddf2254febae9eab7fb0bcc02c5322243f5c49 I've just verified with the exact same hardware as in Bugzilla#217276 that latest master (v6.3-rc5-137-gf2afccfefe7b) still gets a kernel panic at boot, which goes away once those 3 patches are applied. Do you need any extra information, log excerpt, or something like that? Cheers, -- Cyril Brulebois (kibi@xxxxxxxxxx) <https://debamax.com/> D-I release manager -- Release team member -- Freelance Consultant
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