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b=Xm14qIj6qE0rSydWIxGBO21BTUZmgKcJKSXeFTnloX3IA279EAoyMijq1/+26T0xyMEwPmnaKocCsAVLm2LQlx/Z5dx0vE3PjK825epgqlhH6SD6cOs/b847IRjcSfXmCUOlRQH+1lXh7oOiS4VdOhUyvy7wfPfcPDHvcxlCVoI= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=cherry.de; Received: from AS8PR04MB8897.eurprd04.prod.outlook.com (2603:10a6:20b:42c::20) by DBAPR04MB7238.eurprd04.prod.outlook.com (2603:10a6:10:1aa::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9228.9; Wed, 15 Oct 2025 14:32:34 +0000 Received: from AS8PR04MB8897.eurprd04.prod.outlook.com ([fe80::5ee:7297:93b4:a8d1]) by AS8PR04MB8897.eurprd04.prod.outlook.com ([fe80::5ee:7297:93b4:a8d1%6]) with mapi id 15.20.9203.009; Wed, 15 Oct 2025 14:32:34 +0000 Message-ID: <9772ae76-7a92-4d45-b4f8-d1bb07dbb886@cherry.de> Date: Wed, 15 Oct 2025 16:32:32 +0200 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 2/2] arm64: dts: rockchip: add RK3588 DP carrier from Theobroma Systems To: Heiko Stuebner Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, damon.ding@rock-chips.com, Heiko Stuebner References: <20251009225050.88192-1-heiko@sntech.de> <20251009225050.88192-3-heiko@sntech.de> Content-Language: en-US From: Quentin Schulz In-Reply-To: <20251009225050.88192-3-heiko@sntech.de> Content-Type: text/plain; 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It does not support DP+ > so passive DP-to-HDMI adapters won't work. > > Signed-off-by: Heiko Stuebner > Link: https://lore.kernel.org/r/20250723190904.37792-3-heiko@sntech.de Please remove the Link trailer for v5 (if there's one) :) I only have one remark: the device is stuck when shutting down or rebooting after this one line in the logs (can be shown by adding initcall_debug to the kernel command line) [ 21.973452] arm-smmu-v3 fc900000.iommu: shutdown It only reboots by chance, after ~1m30s, because the watchdog is started before rebooting and never triggered again. If I add: &mmu600_pcie { status = "disabled"; }; then the device reboots just fine. So we either temporarily disable it or we try to fix the origin of the issue. As reported to Damon today on the v2 of this series, I tested with https://lore.kernel.org/all/20250930090920.131094-1-damon.ding@rock-chips.com/ https://lore.kernel.org/all/20250930094251.131314-1-damon.ding@rock-chips.com/ (patches 14-18 of the previous thread) https://lore.kernel.org/all/20251009193028.4952-1-heiko@sntech.de/ https://lore.kernel.org/linux-rockchip/20251008133135.3745785-1-heiko@sntech.de/ and DP works as expected (minus some (I deem to be) minor issues). Cheers, Quentin