Hi, On Wed, Jan 11, 2023 at 11:25:41AM +0800, Jian Yang wrote: > From: "jian.yang" <jian.yang@xxxxxxxxxxxx> > > Make MediaTek's controller driver capable of controlling power > supplies and reset pin of a downstream component in power-on and > power-off flow. > > Some downstream components (e.g., a WIFI chip) may need an extra > reset other than of PERST# and their power supplies, depending on > the requirements of platform, may need to controlled by their > parent's driver. To meet the requirements described above, I add this > feature to MediaTek's PCIe controller driver as a optional feature. Is this delay (dsc-reset-msleep) specific to a device downstream from the MediaTek controller, not to the MediaTek controller itself? If so, it sounds like it should be a generic value that could be used by other drivers, too. How do you determine the value? If there's some PCIe spec that determines this, please include a citation to it. Bjorn
