On Tue, Jul 30, 2019 at 09:05:22PM +0000, [email protected] wrote: > > -----Original Message----- > > From: Keith Busch <[email protected]> > > Sent: Tuesday, July 30, 2019 2:20 PM > > To: Kai-Heng Feng > > Cc: Limonciello, Mario; [email protected]; [email protected]; > > [email protected]; > > [email protected]; [email protected]; [email protected]; > > [email protected]; [email protected] > > Subject: Re: [Regression] Commit "nvme/pci: Use host managed power state for > > suspend" has problems > > > > > > [EXTERNAL EMAIL] > > > > On Wed, Jul 31, 2019 at 02:50:01AM +0800, Kai-Heng Feng wrote: > > > > > > Just did a quick test, this patch regress SK Hynix BC501, the SoC stays at > > > PC3 once the patch is applied. > > > > Okay, I'm afraid device/platform quirks may be required unless there are > > any other ideas out there. > > I think if a quirk goes in for Rafael's SSD it would have to be a quirk > specific to this > device and FW version per the findings on KH checking the same device with the > older FW version.
That's fine, we have the infrastructure in place for fw specific quirks. See drivers/nvme/host/core.c:nvme_core_quirk_entry
