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[2a01:cb00:8bd:2700:e58e:9e64:9f90:20b2]) by smtp.gmail.com with ESMTPSA id m18sm244608wrx.17.2021.01.24.07.08.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 24 Jan 2021 07:08:46 -0800 (PST) From: Adrien Grassein To: Subject: [PATCH 1/2] dt-bindings: display: bridge: Add documentation for LT8912 Date: Sun, 24 Jan 2021 16:08:34 +0100 Message-Id: <20210124150835.1522899-3-adrien.grassein@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210124150835.1522899-1-adrien.grassein@gmail.com> References: <20210124150835.1522899-1-adrien.grassein@gmail.com> MIME-Version: 1.0 X-Mailman-Approved-At: Mon, 25 Jan 2021 08:45:26 +0000 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: , Cc: devicetree@vger.kernel.org, jernej.skrabec@siol.net, narmstrong@baylibre.com, airlied@linux.ie, jonas@kwiboo.se, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, a.hajda@samsung.com, robh+dt@kernel.org, Laurent.pinchart@ideasonboard.com, Adrien Grassein Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Lontium LT8912 is a DSI to HDMI bridge. Signed-off-by: Adrien Grassein --- .../display/bridge/lontium,lt8912.yaml | 92 +++++++++++++++++++ MAINTAINERS | 5 + 2 files changed, 97 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml new file mode 100644 index 000000000000..ed1a6ddaab2f --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml @@ -0,0 +1,92 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/lontium,lt8912.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lontium LT8912 MIPI to HDMI Bridge + +maintainers: + - Adrien Grassein + +description: | + The LT8912 is a bridge device which convert DSI to HDMI + +properties: + compatible: + enum: + - lontium,lt8912 + + reg: + maxItems: 1 + + ddc-i2c-bus: + maxItems: 1 + description: i2c bus used to read EDID of the connected display. + + dsi-lanes: + maxItems: 1 + description: dsi lanes count interconnected with lt8912. + + reset-gpios: + maxItems: 1 + description: GPIO connected to active high RESET pin. + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: + Primary MIPI port-1 for MIPI input + + required: + - port@0 + +required: + - compatible + - ddc-i2c-bus + - dsi-lanes + - reg + - reset-gpios + - ports + +additionalProperties: false + +examples: + - | + #include + + i2c4 { + #address-cells = <1>; + #size-cells = <0>; + + hdmi-bridge@48 { + compatible = "lontium,lt8912"; + reg = <0x48>; + reset-gpios = <&max7323 0 GPIO_ACTIVE_LOW>; + dsi-lanes = <4>; + ddc-i2c-bus = <&ddc_i2c_bus>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + hdmi_out_in: endpoint { + remote-endpoint = <&mipi_dsi_out>; + }; + }; + }; + }; + }; + + ddc_i2c_bus: i2c5 { + #address-cells = <1>; + #size-cells = <0>; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index 5aa18cbfb883..01e7e356bfac 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10472,6 +10472,11 @@ S: Maintained T: git git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git F: drivers/hid/hid-lg-g15.c +LONTIUM LT8912 MIPI TO HDMI BRIDGE +M: Adrien Grassein +S: Maintained +F: Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml + LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI) M: Sathya Prakash M: Sreekanth Reddy