Document the Synaptics TDDI (Touch/Display Integration) panel hardware. Along with the MIPI-DSI panel, these devices also have an in-built LED backlight device and a touchscreen, all packed together in a single chip.
Also, add compatibles for supported panels - TD4101 and TD4300. Both have the '-panel' suffix so as to remove any ambiguity between the panel and touchscreen chips. Signed-off-by: Kaustabh Chakraborty <kauschl...@disroot.org> --- .../display/panel/synaptics,td4300-panel.yaml | 89 ++++++++++++++++++++++ 1 file changed, 89 insertions(+) diff --git a/Documentation/devicetree/bindings/display/panel/synaptics,td4300-panel.yaml b/Documentation/devicetree/bindings/display/panel/synaptics,td4300-panel.yaml new file mode 100644 index 0000000000000000000000000000000000000000..152d94367130e9d80a885fe87a2da53db88e3393 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/synaptics,td4300-panel.yaml @@ -0,0 +1,89 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/synaptics,td4300-panel.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Synaptics TDDI Display Panel Controller + +maintainers: + - Kaustabh Chakraborty <kauschl...@disroot.org> + +allOf: + - $ref: panel-common.yaml# + +properties: + compatible: + enum: + - syna,td4101-panel + - syna,td4300-panel + + reg: + maxItems: 1 + + vio-supply: + description: core I/O voltage supply + + vsn-supply: + description: negative voltage supply for analog circuits + + vsp-supply: + description: positive voltage supply for analog circuits + + backlight-gpios: + maxItems: 1 + description: backlight enable GPIO + + reset-gpios: true + width-mm: true + height-mm: true + panel-timing: true + +required: + - compatible + - reg + - width-mm + - height-mm + - panel-timing + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + dsi { + #address-cells = <1>; + #size-cells = <0>; + + panel@0 { + compatible = "syna,td4300-panel"; + reg = <0>; + + vio-supply = <&panel_vio_reg>; + vsn-supply = <&panel_vsn_reg>; + vsp-supply = <&panel_vsp_reg>; + + backlight-gpios = <&gpd3 5 GPIO_ACTIVE_LOW>; + reset-gpios = <&gpd3 4 GPIO_ACTIVE_LOW>; + + width-mm = <68>; + height-mm = <121>; + + panel-timing { + clock-frequency = <144389520>; + + hactive = <1080>; + hsync-len = <4>; + hfront-porch = <120>; + hback-porch = <32>; + + vactive = <1920>; + vsync-len = <2>; + vfront-porch = <21>; + vback-porch = <4>; + }; + }; + }; + +... -- 2.50.0