-----Original Message----- From: Rob Herring <robh@xxxxxxxxxx> Sent: 2018年10月26日 5:53 To: Xiaowei Bao <xiaowei.bao@xxxxxxx> Cc: bhelgaas@xxxxxxxxxx; mark.rutland@xxxxxxx; shawnguo@xxxxxxxxxx; Leo Li <leoyang.li@xxxxxxx>; kishon@xxxxxx; lorenzo.pieralisi@xxxxxxx; arnd@xxxxxxxx; gregkh@xxxxxxxxxxxxxxxxxxx; M.h. Lian <minghuan.lian@xxxxxxx>; Mingkai Hu <mingkai.hu@xxxxxxx>; Roy Zang <roy.zang@xxxxxxx>; kstewart@xxxxxxxxxxxxxxxxxxx; cyrille.pitchen@xxxxxxxxxxxxxxxxxx; pombredanne@xxxxxxxx; shawn.lin@xxxxxxxxxxxxxx; niklas.cassel@xxxxxxxx; linux-pci@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linuxppc-dev@xxxxxxxxxxxxxxxx Subject: Re: [PATCH 3/6] PCI: layerscape: Add the EP mode support On Thu, Oct 25, 2018 at 07:08:58PM +0800, Xiaowei Bao wrote: > Add the EP mode support. > > Signed-off-by: Xiaowei Bao <xiaowei.bao@xxxxxxx> > --- > .../devicetree/bindings/pci/layerscape-pci.txt | 3 +++ > 1 files changed, 3 insertions(+), 0 deletions(-) > > diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt > index 66df1e8..d3d7be1 100644 > --- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt > +++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt > @@ -13,12 +13,15 @@ information. > > Required properties: > - compatible: should contain the platform identifier such as: > + RC mode: > "fsl,ls1021a-pcie", "snps,dw-pcie" > "fsl,ls2080a-pcie", "fsl,ls2085a-pcie", "snps,dw-pcie" > "fsl,ls2088a-pcie" > "fsl,ls1088a-pcie" > "fsl,ls1046a-pcie" > "fsl,ls1012a-pcie" > + EP mode: > + "fsl,ls-pcie-ep" You need SoC specific compatibles for the same reasons as the RC. [Xiaowei Bao] I want to contains all layerscape platform use one compatible if the PCIe controller work in EP mode. Rob