Add binding for Sitronix ST7920 display. Signed-off-by: Iker Pedrosa <ikerpedro...@gmail.com> --- .../bindings/display/sitronix,st7920.yaml | 55 ++++++++++++++++++++++ 1 file changed, 55 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/sitronix,st7920.yaml b/Documentation/devicetree/bindings/display/sitronix,st7920.yaml new file mode 100644 index 0000000000000000000000000000000000000000..caee85f98c6d242dfab73729210f8c34b23a3a99 --- /dev/null +++ b/Documentation/devicetree/bindings/display/sitronix,st7920.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/sitronix,st7920.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Sitronix ST7920 LCD Display Controllers + +maintainers: + - Iker Pedrosa <ikerpedro...@gmail.com> + +description: | + The Sitronix ST7920 is a controller for monochrome dot-matrix graphical LCDs, + most commonly used for 128x64 pixel displays. + This binding supports connecting the display via a standard SPI bus. + +properties: + compatible: + const: sitronix,st7920 + + reg: + description: The chip-select number for the device on the SPI bus. + maxItems: 1 + + spi-max-frequency: + description: Maximum SPI clock frequency in Hz. + maximum: 600000 + + spi-cs-high: + type: boolean + description: Indicates the chip select is active high. + +required: + - compatible + - reg + - spi-max-frequency + +additionalProperties: false + +examples: + - | + // Example: ST7920 connected to an SPI bus + #include <dt-bindings/gpio/gpio.h> + + spi0 { + #address-cells = <1>; + #size-cells = <0>; + + display@0 { + compatible = "sitronix,st7920"; + reg = <0>; // Chip select 0 + spi-max-frequency = <600000>; + spi-cs-high; + }; + }; -- 2.50.1
