Commit 86619c38 authored Oct 24, 2018 by Eric Anholt

dt-bindings: new binding for Himax HX8357D display panels

This adds a new binding for Himax HX8357D display panels. It includes
a compatible string for one display (more can be added in the future).

The YX350HV15 panel[1] is found in the Adafruit PiTFT 3.5" Touch
Screen for Raspberry Pi.

[1] https://learn.adafruit.com/adafruit-pitft-3-dot-5-touch-screen-for-raspberry-pi/downloads



This binding is closely modeled after the ili9341 binding, for a
similar product from adafruit.  The primary difference is that the
hx8357d doesn't have a reset line that I can find in the schematics.

v2: Document the "reg" property (requested by Rob), fix commit message
    typo (Noralf)

Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20181024184313.2967-2-eric@anholt.net


Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Noralf Trønnes <noralf@tronnes.org>

parent dff906c3

Documentation/devicetree/bindings/display/himax,hx8357d.txt

0 → 100644

+26 −0

Original line number	Diff line number	Diff line
		Himax HX8357D display panels

		This binding is for display panels using a Himax HX8357D controller in SPI
		mode, such as the Adafruit 3.5" TFT for Raspberry Pi.

		Required properties:
		- compatible: "adafruit,yx350hv15", "himax,hx8357d"
		- dc-gpios: D/C pin
		- reg: address of the panel on the SPI bus

		The node for this driver must be a child node of a SPI controller, hence
		all mandatory properties described in ../spi/spi-bus.txt must be specified.

		Optional properties:
		- rotation: panel rotation in degrees counter clockwise (0,90,180,270)
		- backlight: phandle of the backlight device attached to the panel

		Example:
		display@0{
		compatible = "adafruit,yx350hv15", "himax,hx8357d";
		reg = <0>;
		spi-max-frequency = <32000000>;
		dc-gpios = <&gpio0 25 GPIO_ACTIVE_HIGH>;
		rotation = <90>;
		backlight = <&backlight>;
		};

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