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+SN65DSI86 DSI to eDP bridge chip
+--------------------------------
+
+This is the binding for Texas Instruments SN65DSI86 bridge.
+http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=sn65dsi86&fileType=pdf
+
+Required properties:
+- compatible: Must be "ti,sn65dsi86"
+- reg: i2c address of the chip, 0x2d as per datasheet
+- enable-gpios: OF device-tree gpio specification for bridge_en pin (active high)
+
+- vccio-supply: A 1.8V supply that powers up the digital IOs.
+- vpll-supply: A 1.8V supply that powers up the displayport PLL.
+- vcca-supply: A 1.2V supply that powers up the analog circuits.
+- vcc-supply: A 1.2V supply that powers up the digital core.
+
+Optional properties:
+- interrupts: Specifier for the SN65DSI86 interrupt line.
+
+- ddc-i2c-bus: phandle of the I2C controller used for DDC EDID probing
+
+- gpio-controller: Marks the device has a GPIO controller.
+- #gpio-cells : Should be two. The first cell is the pin number and
+ the second cell is used to specify flags.
+ See ../../gpio/gpio.txt for more information.
+- #pwm-cells : Should be one. See ../../pwm/pwm.txt for description of
+ the cell formats.
+
+- clock-names: should be "refclk"
+- clocks: Specification for input reference clock. The reference
+ clock rate must be 12 MHz, 19.2 MHz, 26 MHz, 27 MHz or 38.4 MHz.
+
+- data-lanes: Specification to describe the logical to physical lane
+ mapping scheme. See ../../media/video-interface.txt for more
+ information.
+- lane-polarities: Specification to describe the polarity of physical lanes.
+ See ../../media/video-interface.txt for more information.
+
+Required nodes:
+This device has two video ports. Their connections are modelled using the
+OF graph bindings specified in Documentation/devicetree/bindings/graph.txt.
+
+- Video port 0 for DSI input
+- Video port 1 for eDP output
+
+Example
+-------
+
+edp-bridge@2d {
+ compatible = "ti,sn65dsi86";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x2d>;
+
+ enable-gpios = <&msmgpio 33 GPIO_ACTIVE_HIGH>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
+
+ vccio-supply = <&pm8916_l17>;
+ vcca-supply = <&pm8916_l6>;
+ vpll-supply = <&pm8916_l17>;
+ vcc-supply = <&pm8916_l6>;
+
+ clock-names = "refclk";
+ clocks = <&input_refclk>;
+
+ data-lanes = <2 1 3 0>;
+ lane-polarities = <0 1 0 1>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ edp_bridge_in: endpoint {
+ remote-endpoint = <&dsi_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ edp_bridge_out: endpoint {
+ remote-endpoint = <&edp_panel_in>;
+ };
+ };
+ };
+}
Document the bindings used for the sn65dsi86 DSI to eDP bridge. Changes in v1: - Rephrase the dt-binding descriptions to be more inline with existing bindings (Andrzej Hajda). - Add missing dt-binding that are parsed by corresponding driver (Andrzej Hajda). Changes in v2: - Remove edp panel specific dt-binding entries. Only keep bridge specific entries (Sean Paul). - Remove custom-modes dt entry since its usage is removed from driver also (Sean Paul). - Remove is-pluggable dt entry since this will not be needed anymore (Sean Paul). Changes in v3: - Remove irq-gpio dt entry and instead populate is an interrupt property (Rob Herring). Changes in v4: - Add link to bridge chip datasheet (Stephen Boyd) - Add vpll and vcc regulator supply bindings (Stephen Boyd) - Add ref clk optional dt binding (Stephen Boyd) - Add gpio-controller optional dt binding (Stephen Boyd) Changes in v5: - Use clock property to specify the input refclk (Stephen Boyd). - Update gpio cell and pwm cell numbers (Stephen Boyd). Changes in v6: - Add property to mention the lane mapping scheme and polarity inversion (Stephen Boyd). Changes in v7: - Detail description of lane mapping scheme dt property (Andrzej Hajda/ Rob Herring). - Removed HDP gpio binding, since the bridge uses IRQ signal to determine HPD, and IRQ property is already documented in binding. Changes in v8: - Removed unnecessary explanation of lane mapping and polarity dt property, since these are already explained in media/video-interface dt binidng (Rob Herring). Signed-off-by: Sandeep Panda <spanda@codeaurora.org> --- .../bindings/display/bridge/ti,sn65dsi86.txt | 90 ++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.txt