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charset="us-ascii" Content-Transfer-Encoding: quoted-printable Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-OriginatorOrg: aspeedtech.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: OS8PR06MB7541.apcprd06.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 867c3d6a-2e84-4847-af7a-08ddf4bcfab8 X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Sep 2025 01:04:25.3466 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 43d4aa98-e35b-4575-8939-080e90d5a249 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: a2J3I4lbAnmkmDZE9ChvP26Wq9y18JGtV3oFmVqh+iUugS4judJ/As9jHTJM+//ZACI75+ieLB5zjtlOkuSowogyP/IfEtpKNXVP2kuu6h4= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SEYPR06MB8115 > Subject: Re: [PATCH 1/4] dt-bindings: usb: uhci: Add reset property >=20 > On Mon, Sep 15, 2025 at 03:39:23PM +0800, Ryan Chen wrote: > > The UHCI controller on Aspeed SoCs (including AST2700) requires its > > reset line to be deasserted before the controller can be used. > > Add an optional "resets" property to the UHCI device tree bindings to > > describe the phandle to the reset controller. >=20 > Looks like the property is not optional at all for your aspeed devices, a= nd you > should require it for those compatibles. >=20 > > > > This property is optional for platforms which do not require explicit > > reset handling. Thanks, resets is required for ast2700-uhci. I will add in following. - if: properties: compatible: contains: const: aspeed,ast2700-uhci then: required: - resets > > > > Signed-off-by: Ryan Chen > > --- > > Documentation/devicetree/bindings/usb/usb-uhci.yaml | 3 +++ > > 1 file changed, 3 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/usb/usb-uhci.yaml > > b/Documentation/devicetree/bindings/usb/usb-uhci.yaml > > index d8336f72dc1f..b1f2b9bd7921 100644 > > --- a/Documentation/devicetree/bindings/usb/usb-uhci.yaml > > +++ b/Documentation/devicetree/bindings/usb/usb-uhci.yaml > > @@ -28,6 +28,9 @@ properties: > > interrupts: > > maxItems: 1 > > > > + resets: > > + maxItems: 1 > > + > > '#ports': > > $ref: /schemas/types.yaml#/definitions/uint32 > > > > -- > > 2.34.1 > >