Hi Shawn, On Mon, Jan 22, 2018 at 11:04 PM, Shawn Guo <shawn.guo@xxxxxxxxxx> wrote: > From: Jianguo Sun <sunjianguo1@xxxxxxxxxx> > > Besides the GPIO for controlling reset, there is also possibly another > GPIO for turning on/off the power of PCIe slot. Let's add the support > for that with another optional device tree property 'power-gpios'. It seems that a better approach would be to add regulator support instead as it is more general. We do this in drivers/pci/dwc/pci-imx6.c.