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Received: from DBBPR04MB7737.eurprd04.prod.outlook.com (2603:10a6:10:1e5::22) by DBAPR04MB7414.eurprd04.prod.outlook.com (2603:10a6:10:1a0::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.181.8; Fri, 3 Jul 2026 14:05:20 +0000 Received: from DBBPR04MB7737.eurprd04.prod.outlook.com ([fe80::5960:fb4b:9313:2b00]) by DBBPR04MB7737.eurprd04.prod.outlook.com ([fe80::5960:fb4b:9313:2b00%5]) with mapi id 15.21.0181.009; Fri, 3 Jul 2026 14:05:20 +0000 Message-ID: Date: Fri, 3 Jul 2026 16:05:18 +0200 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 4/4] arm64: dts: rockchip: Enable CAN controller on RK3588-Tiger-Haikou To: Cunhao Lu <1579567540@qq.com>, Marc Kleine-Budde , kernel@pengutronix.de, Vincent Mailhol , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner Cc: linux-can@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Heiko Stuebner References: <20260703-master-v4-0-47d40bbf5fda@qq.com> Content-Language: en-US From: Quentin Schulz In-Reply-To: Content-Type: text/plain; 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Errata documentation mentions > 300MHz as the default frequency on RK3568, so replicate this here > to allow more bitrates. > > Signed-off-by: Heiko Stuebner > Signed-off-by: Cunhao Lu <1579567540@qq.com> > --- > arch/arm64/boot/dts/rockchip/rk3588-tiger-haikou.dts | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/arch/arm64/boot/dts/rockchip/rk3588-tiger-haikou.dts b/arch/arm64/boot/dts/rockchip/rk3588-tiger-haikou.dts > index 873fbeb8daa1..6273e695b039 100644 > --- a/arch/arm64/boot/dts/rockchip/rk3588-tiger-haikou.dts > +++ b/arch/arm64/boot/dts/rockchip/rk3588-tiger-haikou.dts > @@ -155,6 +155,12 @@ vddd_audio_1v6: regulator-vddd-audio-1v6 { > }; > }; > > +&can0 { > + assigned-clocks = <&cru CLK_CAN0>; > + assigned-clock-rates = <300000000>; Why is this not SoC-specific? We are only routing the signal from the SoC after all. If it cannot be put into rk3588-base.dtsi for some reason and is product-specific... Why is this in the baseboard DTS and not in the SoM DTSI? I would like to avoid our customers to have to copy things over if they should just work on their baseboard too if they don't do crazy things there. I'll try to find time to test the three CAN controllers on RK3588 Jaguar with the CAN1-CAN2-UART4 Mezzanine adapter board and will contribute an overlay for that if it goes well. I don't have a CAN-FD adapter though but I hope they reused the exact same IP for the three controllers in the SoC :) Cheers, Quentin