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| author |   Eric Anholt <eric@anholt.net> | 2018-10-24 11:43:11 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2018-10-30 16:23:33 -0700 |
| commit | 86619c3859c0ff066e519257442b37f90b1212af (patch) | |
| tree | 863a308044f4c36f0359efffd0a0400a14c76abf /Documentation/devicetree | |
| parent | drm/tinydrm: Advertise that we can do only DRM_FORMAT_MOD_LINEAR. (diff) | |
| download | linux-dev-86619c3859c0ff066e519257442b37f90b1212af.tar.xz linux-dev-86619c3859c0ff066e519257442b37f90b1212af.zip | |
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>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/display/himax,hx8357d.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/himax,hx8357d.txt b/Documentation/devicetree/bindings/display/himax,hx8357d.txt new file mode 100644 index 000000000000..e641f664763d --- /dev/null +++ b/Documentation/devicetree/bindings/display/himax,hx8357d.txt @@ -0,0 +1,26 @@ +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>; + }; |