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Wed, 16 Jun 2021 11:26:00 +0000 From: Yoshihiro Shimoda To: Geert Uytterhoeven CC: "linux-renesas-soc@vger.kernel.org" , "devicetree@vger.kernel.org" , Magnus Damm , Rob Herring Subject: RE: [PATCH/RFC 13/14] arm64: dts: renesas: r8a779m1: Add Cortex-A57 2 GHz opp Thread-Topic: [PATCH/RFC 13/14] arm64: dts: renesas: r8a779m1: Add Cortex-A57 2 GHz opp Thread-Index: AQHXXdxGNIZMI3Q/qk6wz+Ypq32vkKsWh+3g Date: Wed, 16 Jun 2021 11:25:59 +0000 Message-ID: References: In-Reply-To: Accept-Language: ja-JP, en-US Content-Language: ja-JP X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: glider.be; dkim=none (message not signed) header.d=none;glider.be; dmarc=none action=none header.from=renesas.com; x-originating-ip: [240f:60:5f3e:1:81de:11c4:e195:fc55] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 386288c8-aaf9-488e-1a6a-08d930b9849a x-ms-traffictypediagnostic: TYAPR01MB5279: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:10000; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: renesas.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: TY2PR01MB3692.jpnprd01.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 386288c8-aaf9-488e-1a6a-08d930b9849a X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Jun 2021 11:25:59.8732 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 53d82571-da19-47e4-9cb4-625a166a4a2a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: gDW297Nd0KsMm3gIM/+g62i5FmfsClfVDpDeopxum2eKYGoV6xTgvkhyWw1dDN0lj6dKMJx2Pb2VuxjRoVuHRS4H0US+FROfM3RQGdfAIGN8+XeakfIfMLuY76TrlGjz X-MS-Exchange-Transport-CrossTenantHeadersStamped: TYAPR01MB5279 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi Geert-san, Thank you for the patch! > From: Geert Uytterhoeven, Sent: Thursday, June 10, 2021 6:37 PM >=20 > Add a preliminary operating point for running the Cortex-A57 CPU cores > on R-Car H3e-2G at 2 GHz. >=20 > The opp-microvolt value depends on a future update of the Electrical > Characteristics for R-Car H3e-2G. Yes, we have to confirm the official document in the future, but... > Signed-off-by: Geert Uytterhoeven > --- > arch/arm64/boot/dts/renesas/r8a779m1.dtsi | 9 +++++++++ > 1 file changed, 9 insertions(+) >=20 > diff --git a/arch/arm64/boot/dts/renesas/r8a779m1.dtsi b/arch/arm64/boot/= dts/renesas/r8a779m1.dtsi > index 0e9b04469b83c661..01b4e787e5749219 100644 > --- a/arch/arm64/boot/dts/renesas/r8a779m1.dtsi > +++ b/arch/arm64/boot/dts/renesas/r8a779m1.dtsi > @@ -10,3 +10,12 @@ > / { > compatible =3D "renesas,r8a779m1", "renesas,r8a7795"; > }; > + > +&cluster0_opp { > + opp-2000000000 { > + opp-hz =3D /bits/ 64 <2000000000>; > + opp-microvolt =3D <1020000>; // FIXME TBC I heard this voltage is the same as 1.7GHz's one (0.96V). Best regards, Yoshihiro Shimoda > + clock-latency-ns =3D <300000>; > + turbo-mode; > + }; > +}; > -- > 2.25.1