Re: [PATCH v5 0/2] PCI: rockchip-host: Make the PERST# inactive delay configurable
From: Igor Velkov
Date: Wed Nov 04 2026 - 23:25:23 EST
Tested on Helios64 (JMB585 behind a GPIO-switched slot supply) and
ROCK Pi 4A (empty slot and a WD SN770 NVMe), 7.3.1 with the series
backported, one s2idle cycle per boot:
Helios64, no property: resume 20/20, abort in rockchip_pcie_rd_conf() at probe on 1 of 21 boots
Helios64, <10> probe and s2r: resume 20/20, the same abort on 1 of 21 boots
ROCK Pi 4A, empty slot, none/<10>: 10/10, 10/10
ROCK Pi 4A, SN770, none/<10>: 10/10, 10/10, NVMe readable after each resume
The default behaves as before, and 10 ms changes nothing here; the
slow JMB585 link on Helios64 shows up at the same rate with either
pulse width.
Tested-by: Igor Velkov <iav@xxxxxx>