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Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wsTbj-00000008qob-32Z5; Fri, 07 Aug 2026 23:04:07 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wsTbi-00000008qoO-2PlU; Fri, 07 Aug 2026 23:04:06 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 063B543A3F; Fri, 7 Aug 2026 23:04:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8FBB81F000E9; Fri, 7 Aug 2026 23:04:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786143845; bh=kx1UpXBKBEnflfmlkyqXJx2dZdKyL+1i3Yt8CewuoiI=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=VV/XUYcMh8D0sqYrzb6w4ag/Zg3apwKvX86mZCbG+yJ4BrEBzd6D/uVp6XAcfGVu9 xK0K3U1X6w18XuHNER8n2eiovHx2ki/yt8i7e4rVnNMVLrSy45/NhT9manywxGtTq+ OZpQGjBAa3EQOa05D0effL3x/zpXVwtZua2RfujaYDYnlAUiPoewfrtjKTwjxGbwhN /QeJxfZT28juQPDOxN1mkQjQ4ccmqdX5aYPAPzJfb53i6n9RqrBwGrOEp3VB8xm3XH 80ccLuP5Q0vc1dAUkxDhwNkCnOjAuuInRU6AqpF9LSU3hKFCSwFnDBfzNJPOqrLHuZ HHSyV1z1pS3cw== Date: Fri, 7 Aug 2026 18:04:04 -0500 From: Rob Herring To: Cody Kang Cc: David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Vinod Koul , Neil Armstrong , Haylen Chu , Michael Turquette , Stephen Boyd , Brian Masney , Philipp Zabel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , dri-devel@lists.freedesktop.org, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-clk@vger.kernel.org Subject: Re: [PATCH RESEND 03/17] dt-bindings: display: spacemit: add K3 Innosilicon DP/eDP controller Message-ID: <20260807230404.GA2211679-robh@kernel.org> References: <20260725-k3-display-v1-0-6de34d80e86c@gmail.com> <20260725-k3-display-v1-3-6de34d80e86c@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20260725-k3-display-v1-3-6de34d80e86c@gmail.com> X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On Sat, Jul 25, 2026 at 12:51:12AM -0400, Cody Kang wrote: > Both K3 instances are the same IP and share one compatible; which one > behaves as eDP is decided by what its downstream port is wired to, not by > which register window it sits in, so the binding does not distinguish them. > > Signed-off-by: Cody Kang > --- > .../display/spacemit/spacemit,k3-inno-dp.yaml | 140 +++++++++++++++++++++ > 1 file changed, 140 insertions(+) > > diff --git a/Documentation/devicetree/bindings/display/spacemit/spacemit,k3-inno-dp.yaml b/Documentation/devicetree/bindings/display/spacemit/spacemit,k3-inno-dp.yaml > new file mode 100644 > index 000000000000..865ea310daaf > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/spacemit/spacemit,k3-inno-dp.yaml > @@ -0,0 +1,140 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/spacemit/spacemit,k3-inno-dp.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: SpacemiT K3 Innosilicon DisplayPort / embedded DisplayPort Controller > + > +maintainers: > + - Cody Kang > + > +description: > + Innosilicon DisplayPort transmit controller integrated in the SpacemiT K3 > + SoC. The K3 has two instances of the same block sharing one compatible; > + each acts as embedded or external DisplayPort depending on whether its > + output port drives a panel or a connector. > + > +properties: > + compatible: > + const: spacemit,k3-inno-dp > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + description: Link and hot-plug events. > + > + clocks: > + items: > + - description: Pixel clock for the controller. > + - description: > + Pixel clock generated by the DP PHY PLL; the pixel clock above is > + parented onto it in use. > + > + clock-names: > + items: > + - const: pxclk > + - const: pll > + > + resets: > + maxItems: 1 > + description: Controller-wide reset signal. > + > + phys: > + maxItems: 1 > + description: Phandle to the K3 Innosilicon DP PHY. > + > + phy-names: > + items: > + - const: dp > + > + ports: > + $ref: /schemas/graph.yaml#/properties/ports > + > + properties: > + port@0: > + $ref: /schemas/graph.yaml#/properties/port > + description: Video input from the DPU. > + > + port@1: > + $ref: /schemas/graph.yaml#/properties/port > + description: Output to the panel or to the DisplayPort connector. > + > + required: > + - port@0 Shouldn't port@1 be required too? Otherwise, Reviewed-by: Rob Herring (Arm) Rob -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy