From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out28-170.mail.aliyun.com (out28-170.mail.aliyun.com [115.124.28.170]) (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 752A027FB37; Fri, 8 May 2026 13:47:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.28.170 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778248043; cv=none; b=LvC/ceQtDgrFRe0ZmlOxCusHLHwijq1/oOVYAvigzW2JC5zggjC1MRqDPVRB34zYeuWapEC4GGLbR41lkoHwpiwsmugJxKkGQiPFP+zmD2JjYZzhIWJIy7msWfwHk5oEBJIRCyCQf/35HWyFt7g5kJn9foNdTcG7lqwzLxAFiUE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778248043; c=relaxed/simple; bh=p0urNjm41sZeAN6q7Acv0PPrW6hXjInS+UEK+XxkjEc=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=rpsqV0TsfWwM7jiHs+mmNOrza7yc2mIr2qDJZnlBsruA+YTOfGhZMX+2CYGpyvV50iXL6J+HTQOz4ZQlH7gJWKQwEfkctDwte/ugxwg5w039TdmLY50OCuGi1Ap2zteO5v7MeXXEZ3sgBWQUj1fYbBfGx3UhJdw2VwfOaHsI/dA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lontium.com; spf=pass smtp.mailfrom=lontium.com; dkim=pass (2048-bit key) header.d=lontium.com header.i=@lontium.com header.b=LM5/cmNz; arc=none smtp.client-ip=115.124.28.170 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lontium.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lontium.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lontium.com header.i=@lontium.com header.b="LM5/cmNz" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=lontium.com; s=default; t=1778248033; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=po4JbBzlVnZWMf/PF4TZcy9SSjh11o50cvR1wsP/N14=; b=LM5/cmNzKETnG2f9WBzI4i+f98sdAdvdVHUk5uZJbbYbD7+25cv22t9CNsuhsEhePSKW4KYk+XeCcWJZuJMXnah/W8G2dhtfeidCbRSxtqhoqvrJsC5j5KkHvYGAhSJZfHjScIOomWJJSOq4+k9tOBfzI6jzw+6XJlpjox/vQK81BdAaI26xwx+/hDsxLRGCtq7GqSekqq6+/jTlz8BiCevtDR/jrhfgeTkZPuCl27cqECzp+EP3xE1Tex+i7rAT46yMcROIyBXArXnCtSbEu9Zna5jg1nVLh4899xo0dceVeguNjAmlFHevIwKthalrfwBZfarAjZDGwbzvbAG+xw== X-Alimail-AntiSpam:AC=CONTINUE;BC=0.0955468|-1;BR=01201311R191ec;CH=green;DM=|CONTINUE|false|;DS=SPAM|spam_ad|0.867174-0.00121929-0.131607;FP=12538499638350542130|0|0|0|0|-1|-1|-1;HT=maildocker-contentspam033037031241;MF=syyang@lontium.com;NM=1;PH=DS;RN=23;RT=23;SR=0;TI=SMTPD_---.hSic1-g_1778248030; Received: from DESKTOP-V2MKAT2.localdomain(mailfrom:syyang@lontium.com fp:SMTPD_---.hSic1-g_1778248030 cluster:ay29) by smtp.aliyun-inc.com; Fri, 08 May 2026 21:47:11 +0800 From: syyang@lontium.com To: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andrzej.hajda@intel.com, neil.armstrong@linaro.org, dmitry.baryshkov@oss.qualcomm.com, maarten.lankhorst@linux.intel.com, rfoss@kernel.org, mripard@kernel.org Cc: Laurent.pinchart@ideasonboard.com, tzimmermann@suse.de, jonas@kwiboo.se, jernej.skrabec@gmail.com, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, yangsunyun1993@gmail.com, xmzhu@lontium.corp-partner.google.com, xmzhu@lontium.com, rlyu@lontium.com, xbpeng@lontium.com, Sunyun Yang , Krzysztof Kozlowski Subject: [PATCH v6 1/2] dt-bindings: bridge: Add Lontium LT7911EXC eDP to MIPI DSI bridge Date: Fri, 8 May 2026 21:47:01 +0800 Message-Id: <20260508134702.4713-2-syyang@lontium.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260508134702.4713-1-syyang@lontium.com> References: <20260508134702.4713-1-syyang@lontium.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Sunyun Yang The LT7911EXC is an I2C-controlled bridge that Receiver eDP1.4 and output signal/dual port mipi dsi. Signed-off-by: Sunyun Yang Reviewed-by: Krzysztof Kozlowski --- .../display/bridge/lontium,lt7911exc.yaml | 89 +++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/lontium,lt7911exc.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt7911exc.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt7911exc.yaml new file mode 100644 index 000000000000..3290b10ce883 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt7911exc.yaml @@ -0,0 +1,89 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/lontium,lt7911exc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lontium LT7911EXC eDP to MIPI DSI Bridge + +maintainers: + - Sunyun Yang + +properties: + compatible: + enum: + - lontium,lt7911exc + + reg: + maxItems: 1 + + reset-gpios: + maxItems: 1 + description: GPIO connected to RST_ pin. + + vdd-supply: + description: Regulator for 1.2V MIPI phy power. + + vcc-supply: + description: Regulator for 3.3V IO power. + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for eDP input. + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: Video port for MIPI DSI output. + + required: + - port@0 + - port@1 + +required: + - compatible + - reg + - reset-gpios + - vdd-supply + - vcc-supply + - ports + +additionalProperties: false + +examples: + - | + #include + i2c { + #address-cells = <1>; + #size-cells = <0>; + + mipi-bridge@41 { + compatible = "lontium,lt7911exc"; + reg = <0x41>; + reset-gpios = <&gpy8 8 GPIO_ACTIVE_LOW>; + vdd-supply = <<7911exc_1v2>; + vcc-supply = <<7911exc_3v3>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + bridge_in: endpoint { + remote-endpoint = <&edp_out>; + }; + }; + + port@1 { + reg = <1>; + bridge_out: endpoint { + remote-endpoint = <&panel_in>; + }; + }; + }; + }; + }; -- 2.34.1