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x-ms-exchange-antispam-messagedata: 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 Content-Type: text/plain; charset="us-ascii" Content-ID: <389AA3A11EE6EF4FA6D80A13C7B414F4@eurprd04.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 63e69d50-a95c-433b-76c1-08d80ce8abbb X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Jun 2020 02:47:52.4875 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: frybLx72RoXriYmwfcoPw5gj2EVWh+6lVw3KwMzyfirhncBSJ2AeJTOYypp0EDFesEuIGY49xArHlMVryYwFBA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM7PR04MB6837 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On 20-06-09 19:12:40, Li Jun wrote: > Add a property "snps,xhci-dis-64bit-support-quirk" to disable xhci 64bit > address support, this is due to SoC integration can't support it but > the AC64 bit (bit 0) of HCCPARAMS1 is set to be 1. >=20 > Signed-off-by: Li Jun > --- > Documentation/devicetree/bindings/usb/dwc3.txt | 3 +++ > 1 file changed, 3 insertions(+) >=20 > diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentati= on/devicetree/bindings/usb/dwc3.txt > index d03edf9..d16cba7 100644 > --- a/Documentation/devicetree/bindings/usb/dwc3.txt > +++ b/Documentation/devicetree/bindings/usb/dwc3.txt > @@ -109,6 +109,9 @@ Optional properties: > When just one value, which means INCRX burst mode enabled. When > more than one value, which means undefined length INCR burst type > enabled. The values can be 1, 4, 8, 16, 32, 64, 128 and 256. > + - snps,xhci-dis-64bit-support-quirk: set if the AC64 bit (bit 0) of HCC= PARAMS1 is set > + to be 1, but the controller actually can't handle 64-bit address > + due to SoC integration. > =20 > - in addition all properties from usb-xhci.txt from the current directo= ry are > supported as well Why not adding it at usb-xhci.txt directly? It is more like general property, I see Renesas rcar platforms also have this quirk. --=20 Thanks, Peter Chen=