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b=h5+X9qj42WoevvR9mzv0QNUlmYHybustduw4M9MGKiqiJG6aK8OteIXu2T8RarPivaD/jcevBVZLpC9U9dkD4+7vYrzXS6SJtC20csvFDfAg55LJDslk9HTDRGP5nZzpd40nU2iDBpDTw7lFaJ0dq6xC9z0P7BEO1D5iQ7K5KVo= Received: from BYAPR12MB4791.namprd12.prod.outlook.com (2603:10b6:a03:10a::12) by CY8PR12MB7682.namprd12.prod.outlook.com (2603:10b6:930:85::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5924.12; Fri, 23 Dec 2022 23:57:16 +0000 Received: from BYAPR12MB4791.namprd12.prod.outlook.com ([fe80::e395:902b:2e90:b7ee]) by BYAPR12MB4791.namprd12.prod.outlook.com ([fe80::e395:902b:2e90:b7ee%4]) with mapi id 15.20.5924.016; Fri, 23 Dec 2022 23:57:16 +0000 X-SNPS-Relay: synopsys.com From: Thinh Nguyen To: Felipe Balbi CC: Rob Herring , Heiko Stuebner , Greg Kroah-Hartman , Krzysztof Kozlowski , Thinh Nguyen , "linux-rockchip@lists.infradead.org" , Johan Jonker , "linux-arm-kernel@lists.infradead.org" , "linux-usb@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH 1/2] dt-bindings: usb: snps,dwc3: Allow power-domains property Thread-Topic: [PATCH 1/2] dt-bindings: usb: snps,dwc3: Allow power-domains property Thread-Index: AQHZE93Ovub27gHGRUWi+BBXvB4w9652Yz6AgABs/oCABHtWgIAA4T8A Date: Fri, 23 Dec 2022 23:57:15 +0000 Message-ID: <20221223235712.h54lggnjjuu3weol@synopsys.com> References: <20221219191038.1973807-1-robh@kernel.org> <87edsua5q4.fsf@balbi.sh> <878riy9ztm.fsf@balbi.sh> In-Reply-To: <878riy9ztm.fsf@balbi.sh> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-publictraffictype: Email x-ms-traffictypediagnostic: BYAPR12MB4791:EE_|CY8PR12MB7682:EE_ x-ms-office365-filtering-correlation-id: e1c9401f-b690-4d5e-87b8-08dae5416b34 x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Hi, On Fri, Dec 23, 2022, Felipe Balbi wrote: > > Hi, > > Rob Herring writes: > >> > The Rockchip RK3399 DWC3 node has 'power-domain' property which isn't > >> > allowed by the schema: > >> > > >> > usb@fe900000: Unevaluated properties are not allowed ('power-domains' was unexpected) > >> > > >> > Allow DWC3 nodes to have a single power-domains entry. We could instead > >> > move the power-domains property to the parent wrapper node, but the > >> > could be an ABI break (Linux shouldn't care). Also, we don't want to > >> > encourage the pattern of wrapper nodes just to define resources such as > >> > clocks, resets, power-domains, etc. when not necessary. > >> > > >> > Signed-off-by: Rob Herring > >> > --- > >> > Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 3 +++ > >> > 1 file changed, 3 insertions(+) > >> > > >> > diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml > >> > index 6d78048c4613..bcefd1c2410a 100644 > >> > --- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml > >> > +++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml > >> > @@ -91,6 +91,9 @@ properties: > >> > - usb2-phy > >> > - usb3-phy > >> > > >> > + power-domains: > >> > + maxItems: 1 > >> > >> AFAICT this can be incorrect. Also, you could have Cc the dwc3 > >> maintainer to get comments. Felipe is correct. We have 2 power-domains: Core domain and PMU. > > > > When we have a user with more and know what each one is, then we can > > extend it. All the other users (upstream), put 'power-domains' in the > > Won't that be an ABI break at that point? You'll change the maximum > number of power-domains. > > > wrapper node. But this is what we need now for RK3399. > > > > I used get_maintainers.pl. If that's the wrong output, fix it please. > > @Thinh, perhaps you should add dwc3 binding file to the list of > maintained files for you? > Sure, if makes sense to do so. If there's no objection, I can also maintain/review it. I can create a patch after coming back from my break in 2 weeks. Since I'm on a break at the moment, my response may be delayed. Thanks, Thinh _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip