From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 055A322F01; Fri, 6 Feb 2026 01:05:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770339958; cv=none; b=QOZkpG6/UttSVGIc2ofXLmqTvmOxCbm8zaDsvxJKPMXaCYvJpis/5Bea1DO7jXPWK90ANYMyNt9y2EnaKXjE/pHPMdpSMlyS5YweK7gnT3EAO5LNtKKiNGlM3sZJwLa/4JrAdFRAIf6avLxkIQrpzNpkK3jPVOKJzNUcOLS1sCc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770339958; c=relaxed/simple; bh=vZcrEJKXJYNcPd1I5xSkeSZc0vJUFGF3RtiJTTE84jo=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=cmUOVSt93O8E1+kCSHw2jiQQsnyQ6bCbq+5eOjoXEPKIG+07muquZFBYHqH6z69Z6ns74lT1GoErZpoi50yKs4Cnu7U1whPSRP7eqCZ6agtKRyZIAlQgFVzXSoFczOUzYhSR4UK2lWfo4kdSlhaDstPLlZa7EIRyZerEA85XelU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=Syz2R8QS; arc=none smtp.client-ip=117.135.210.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="Syz2R8QS" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=qu 3fGJmtZTNWiom7LRE9EaQHrjT1jyrgZ+FUXFAUllg=; b=Syz2R8QS8xnPKCG/ue wHJZztZVR8AfBXX9U3WxVAHRPPJbgFvJxDNPTbrnnCdKJBZhFYnJCEMniphkEZcE gO3gH35hIwR7EcGe54U6mKhw9dkiVTMahctR/Lc0a1uizqKMa4CDm9ACqeJf+2F8 KVVO7+M8iV0jcC+LMzf2asOAQ= Received: from ProDesk-480.. (unknown []) by gzsmtp2 (Coremail) with SMTP id PSgvCgD3_+0XPoVpQ5VfQQ--.20291S2; Fri, 06 Feb 2026 09:04:27 +0800 (CST) From: Andy Yan To: dmitry.baryshkov@oss.qualcomm.com, heiko@sntech.de Cc: alchark@gmail.com, andrzej.hajda@intel.com, conor+dt@kernel.org, cristian.ciocaltea@collabora.com, airlied@gmail.com, jernej.skrabec@gmail.com, jonas@kwiboo.se, kever.yang@rock-chips.com, krzk+dt@kernel.org, Laurent.pinchart@ideasonboard.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, neil.armstrong@linaro.org, nicolas.frattaroli@collabora.com, robh@kernel.org, rfoss@kernel.org, hjc@rock-chips.com, sebastian.reichel@collabora.com, simona@ffwll.ch, tzimmermann@suse.de, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, Andy Yan Subject: [PATCH v3 0/5] Add DisplayPort support for rk3576 Date: Fri, 6 Feb 2026 09:04:10 +0800 Message-ID: <20260206010421.443605-1-andyshrk@163.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:PSgvCgD3_+0XPoVpQ5VfQQ--.20291S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7Zr1DtFy7trW3Wr4rtw48tFb_yoW8Gryxpa nxuFyYyrZ7GFWava4akr18ursYvr1ktrW8Kw17J347t3s8GFy7Gwn8KFn8JrnrXF18A34U ur4UJFy2kr4jv3DanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07jfUUUUUUUU= X-CM-SenderInfo: 5dqg52xkunqiywtou0bp/xtbC7htRr2mFPhtoVgAA38 From: Andy Yan The DisplayPort found on RK3576 is very similar to that of RK3588, but work in dual pixel mode and support for MST. This patch series aims to add basic display output, not include audio and MST, which will be the work for the next stage. Tested with 2 lane standard DP port and USB-C Alt mode output now. For those who want to give it a try, I have a reference branch here[0]. [0]https://github.com/andyshrk/linux/tree/rk3576-dp-upstream-v1 Changes in v3: - Fix compatible order Changes in v2: - Remove unnecessary maxItems - Commit message improve: The pixel mode is determined during the IC integration stage Andy Yan (5): dt-bindings: display: rockchip: Add rk3576 DisplayPort drm/bridge: synopsys: dw-dp: Set pixel mode by platform data drm/bridge: synopsys: dw-dp: Make i2s/spdif clk optional drm/rockchip: dw_dp: Add DisplayPort support for rk3576 arm64: dts: rockchip: Add DisplayPort dt node for rk3576 .../display/rockchip/rockchip,dw-dp.yaml | 27 ++++++++++++++++-- arch/arm64/boot/dts/rockchip/rk3576.dtsi | 28 +++++++++++++++++++ drivers/gpu/drm/bridge/synopsys/dw-dp.c | 12 ++------ drivers/gpu/drm/rockchip/dw_dp-rockchip.c | 27 +++++++++++++++--- include/drm/bridge/dw_dp.h | 7 +++++ 5 files changed, 85 insertions(+), 16 deletions(-) -- 2.43.0