[PATCH v2] PCI: j721e: Deassert PERST# after a delay of PCIE_T_PVPERL_MS ms
Krzysztof Wilczyński
kw at linux.com
Mon Nov 4 05:22:21 PST 2024
Hello,
> According to Section 2.2 of the PCI Express Card Electromechanical
> Specification (Revision 5.1), in order to ensure that the power and the
> reference clock are stable, PERST# has to be deasserted after a delay of
> 100 milliseconds (TPVPERL). Currently, it is being assumed that the power
> is already stable, which is not necessarily true. Hence, change the delay
> to PCIE_T_PVPERL_MS to guarantee that power and reference clock are stable.
Applied to controller/j721e, thank you!
[01/01] PCI: j721e: Deassert PERST# after a delay of PCIE_T_PVPERL_MS milliseconds
https://git.kernel.org/pci/pci/c/22a9120479a4
Krzysztof
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