From patchwork Thu Jun 27 11:13:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marc Gonzalez X-Patchwork-Id: 13714210 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8BAD2C30653 for ; Thu, 27 Jun 2024 11:13:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 96E9D10E226; Thu, 27 Jun 2024 11:13:21 +0000 (UTC) Received: from ns.iliad.fr (ns.iliad.fr [212.27.33.1]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3F8CC10E226 for ; Thu, 27 Jun 2024 11:13:10 +0000 (UTC) Received: from ns.iliad.fr (localhost [127.0.0.1]) by ns.iliad.fr (Postfix) with ESMTP id ED238205E8; Thu, 27 Jun 2024 13:13:08 +0200 (CEST) Received: from [127.0.1.1] (freebox.vlq16.iliad.fr [213.36.7.13]) by ns.iliad.fr (Postfix) with ESMTP id DA7AF2012E; Thu, 27 Jun 2024 13:13:08 +0200 (CEST) From: Marc Gonzalez Date: Thu, 27 Jun 2024 13:13:03 +0200 Subject: [PATCH v3 1/2] dt-bindings: display: bridge: add TI TDP158 MIME-Version: 1.0 Message-Id: <20240627-tdp158-v3-1-fb2fbc808346@freebox.fr> References: <20240627-tdp158-v3-0-fb2fbc808346@freebox.fr> In-Reply-To: <20240627-tdp158-v3-0-fb2fbc808346@freebox.fr> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, Arnaud Vrac , Pierre-Hugues Husson , Dmitry Baryshkov , Marc Gonzalez X-Mailer: b4 0.13.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" TDP158 is an AC-coupled DVI / HDMI to TMDS level shifting Redriver. It supports DVI 1.0, HDMI 1.4b and 2.0b. It supports 4 TMDS channels, HPD, and a DDC interface. It supports dual power supply rails (1.1V on VDD, 3.3V on VCC) for power reduction. Several methods of power management are implemented to reduce overall power consumption. It supports fixed receiver EQ gain using I2C or pin strap to compensate for different lengths input cable or board traces. Features - AC-coupled TMDS or DisplayPort dual-mode physical layer input to HDMI 2.0b TMDS physical layer output supporting up to 6Gbps data rate, compatible with HDMI 2.0b electrical parameters - DisplayPort dual-mode standard version 1.1 - Programmable fixed receiver equalizer up to 15.5dB - Global or independent high speed lane control, pre-emphasis and transmit swing, and slew rate control - I2C or pin strap programmable - Configurable as a DisplayPort redriver through I2C - Full lane swap on main lanes - Low power consumption (200 mW at 6Gbps, 8 mW in shutdown) https://www.ti.com/lit/ds/symlink/tdp158.pdf Signed-off-by: Marc Gonzalez --- .../bindings/display/bridge/ti,tdp158.yaml | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/ti,tdp158.yaml b/Documentation/devicetree/bindings/display/bridge/ti,tdp158.yaml new file mode 100644 index 0000000000000..21c8585c3bb2d --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/ti,tdp158.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/ti,tdp158.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI TDP158 HDMI to TMDS Redriver + +maintainers: + - Arnaud Vrac + - Pierre-Hugues Husson + +properties: + compatible: + const: ti,tdp158 + + reg: + description: I2C address of the device + + enable-gpios: + description: GPIO controlling bridge enable + + vcc-supply: + description: Power supply 3.3V + + vdd-supply: + description: Power supply 1.1V + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: Bridge input + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: Bridge output + + required: + - port@0 + - port@1 + +required: + - compatible + - vcc-supply + - vdd-supply + - ports + +additionalProperties: false