On Wed, Nov 01, 2023 at 10:16:25AM +0000, Naveen Kumar wrote: > From: Naveen Kumar M <mnkumar@xxxxxxxxxx> > > Add a new DT option to specify whether a host controller is able to > support 64-bit DMA memory pointers > > Signed-off-by: Naveen Kumar M <mnkumar@xxxxxxxxxx> > --- > Documentation/devicetree/bindings/usb/usb-xhci.yaml | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.yaml b/Documentation/devicetree/bindings/usb/usb-xhci.yaml > index 180a261c3e8f..20dc134004f3 100644 > --- a/Documentation/devicetree/bindings/usb/usb-xhci.yaml > +++ b/Documentation/devicetree/bindings/usb/usb-xhci.yaml > @@ -25,6 +25,10 @@ properties: > description: Set if the controller has broken port disable mechanism > type: boolean > > + quirk-no-64-bit-support: > + description: Set if the xHC doesn't support 64-bit DMA memory pointers > + type: boolean To add on to this, you can handle this with dma-ranges if you need to limit DMA addresses to less than 32-bits. Rob
