> -----Original Message----- > From: Fabio Estevam <[email protected]> > Sent: 2020年7月9日 1:49 > To: Richard Zhu <[email protected]> > Cc: Shawn Guo <[email protected]>; dl-linux-imx <[email protected]>; > moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE > <[email protected]>; linux-kernel > <[email protected]> > Subject: Re: [PATCH] ARM: dts: imx6qdl: only enable pcie in the pcie dts > file > > Hi Richard, > > On Mon, Jul 6, 2020 at 5:49 AM Richard Zhu <[email protected]> wrote: > > > > Since iMX6Q/DL PCIe has the PM limitation (ERR005723 "PCIe PCIe does > > not support L2 Power Down"). > > System suspend/resume would be broken by PCIe, if PCIe is enabled. > > Only enable PCIe in the xxx-pcie.dts files to avoid the brokens when > > other xxx.dtb files are used on sabresd and sabreauto boards. > > We have several imx6 dts files that currently enable pcie. > > Can't we have a proper software workaround for this issue instead? > Hi Fabio: Up to now, unfortunately, there is no solid confidential SW workaround for this issue.
Best Regards Richard Zhu > Thanks
