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Samsung LD9040 AMOLED LCD parallel RGB panel with SPI control bus
Required properties:
- compatible: "samsung,ld9040"
- reg: address of the panel on SPI bus
- vdd3-supply: core voltage supply
- vci-supply: voltage supply for analog circuits
- reset-gpios: a GPIO spec for the reset pin
- display-timings: timings for the connected panel according to [1]
The panel must obey rules for SPI slave device specified in document [2].
Optional properties:
- power-on-delay: delay after turning regulators on [ms]
- reset-delay: delay after reset sequence [ms]
- panel-width-mm: physical panel width [mm]
- panel-height-mm: physical panel height [mm]
The device node can contain one 'port' child node with one child
'endpoint' node, according to the bindings defined in [3]. This
node should describe panel's video bus.
[1]: Documentation/devicetree/bindings/display/display-timing.txt
[2]: Documentation/devicetree/bindings/spi/spi-bus.txt
[3]: Documentation/devicetree/bindings/media/video-interfaces.txt
Example:
lcd@0 {
compatible = "samsung,ld9040";
reg = <0>;
vdd3-supply = <&ldo7_reg>;
vci-supply = <&ldo17_reg>;
reset-gpios = <&gpy4 5 0>;
spi-max-frequency = <1200000>;
spi-cpol;
spi-cpha;
power-on-delay = <10>;
reset-delay = <10>;
panel-width-mm = <90>;
panel-height-mm = <154>;
display-timings {
timing {
clock-frequency = <23492370>;
hactive = <480>;
vactive = <800>;
hback-porch = <16>;
hfront-porch = <16>;
vback-porch = <2>;
vfront-porch = <28>;
hsync-len = <2>;
vsync-len = <1>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <0>;
pixelclk-active = <0>;
};
};
port {
lcd_ep: endpoint {
remote-endpoint = <&fimd_dpi_ep>;
};
};
};
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