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Fri, 1 Mar 2024 00:41:29 +0000 Received: from DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::1232:ed97:118f:72fd]) by DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::1232:ed97:118f:72fd%4]) with mapi id 15.20.7316.034; Fri, 1 Mar 2024 00:41:29 +0000 From: Peng Fan To: Sudeep Holla CC: Cristian Marussi , "Peng Fan (OSS)" , "robh@kernel.org" , "krzysztof.kozlowski+dt@linaro.org" , "conor+dt@kernel.org" , "linux-arm-kernel@lists.infradead.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: RE: [PATCH] dt-bindings: firmware: arm,scmi: support system power protocol Thread-Topic: [PATCH] dt-bindings: firmware: arm,scmi: support system power protocol Thread-Index: AQHaaLLyfnmFjzyGqEimlBHwa2+g1LEcnfcAgAAaQQCAAKcG0IAD/moAgACytyA= Date: Fri, 1 Mar 2024 00:41:29 +0000 Message-ID: References: <20240226130243.3820915-1-peng.fan@oss.nxp.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DU0PR04MB9417.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 03d4d220-11fc-4d47-624c-08dc39885599 X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Mar 2024 00:41:29.4077 (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: tU2EGMqm9TNG4Lmt6I7RGwLz/ddVSVcLbShv4UAzEVIqIJo+/IWDTYV7cOL73BYdiNFL0ybcaWWewnONam8AOQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR04MB8117 > Subject: Re: [PATCH] dt-bindings: firmware: arm,scmi: support system powe= r > protocol >=20 > On Tue, Feb 27, 2024 at 01:01:41AM +0000, Peng Fan wrote: > > > Subject: Re: [PATCH] dt-bindings: firmware: arm,scmi: support system > > > power protocol > > > > > > On Mon, Feb 26, 2024 at 01:28:31PM +0000, Cristian Marussi wrote: > > > > On Mon, Feb 26, 2024 at 09:02:43PM +0800, Peng Fan (OSS) wrote: > > > > > From: Peng Fan > > > > > > > > > > Add SCMI System Power Protocol bindings, and the protocol id is 0= x12. > > > > > > > > > Hi, > > > > > > > > yes this is something I spotted in the past it was missing and I > > > > posted a similar patch but I was told that a protocol node without > > > > any specific additional properties is already being described by > > > > the general protocol node described above. > > > > Without this patch, there is dtbs_check warning. > > > > scmi: 'protocol@12' does not match any of the regexes: 'pinctrl-[0-9]+' > > from schema $id: > > https://eur01.safelinks.protection.outlook.com/?url=3Dhttp%3A%2F%2Fdevi= c > > > etree.org%2Fschemas%2Ffirmware%2Farm%2Cscmi.yaml%23&data=3D05%7C0 > 2%7Cpen > > > g.fan%40nxp.com%7Ccac77deb5f6a4b20460a08dc392ead40%7C686ea1d3b > c2b4c6fa > > > 92cd99c5c301635%7C0%7C0%7C638448119832543335%7CUnknown%7CT > WFpbGZsb3d8e > > > yJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D > %7C0% > > > 7C%7C%7C&sdata=3D6MldIOUQ4hxn%2BRffwJJJ3jxXXtHCSxLUOa4JMWB0htU% > 3D&reserv > > ed=3D0 > > >=20 > Why are you adding protocol@12 to the device tree ? Does it have a > dedicated channel ? If not, you shouldn't need to add it. No dedicated channel. The idea is we have multile Agent, the M7 agent may ask to shutdown Linux Agent. So the linux agent need use protocol@12 to do the action. For now, we have not finish implementing this in linux side, just add the node in dts. Regards, Peng. >=20 > -- > Regards, > Sudeep