Add device tree bindings for the Sharp LS027B7DH01: a 2.7" 400x240 monochrome display connected over SPI. Signed-off-by: Mehdi Djait <mehdi.djait@xxxxxxxxxxx> --- .../bindings/display/sharp,ls027b7dh01.yaml | 71 +++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/sharp,ls027b7dh01.yaml diff --git a/Documentation/devicetree/bindings/display/sharp,ls027b7dh01.yaml b/Documentation/devicetree/bindings/display/sharp,ls027b7dh01.yaml new file mode 100644 index 000000000000..d0a4efae2827 --- /dev/null +++ b/Documentation/devicetree/bindings/display/sharp,ls027b7dh01.yaml @@ -0,0 +1,71 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/sharp,ls027b7dh01.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Sharp LS027B7DH01 Memory LCD Display + +maintainers: + - Mehdi Djait <mehdi.djait@xxxxxxxxxxx> + +description: + The Sharp LS027B7DH01 is a 2.7" 400x240 monochrome display connected over a + SPI bus. The display requires an alternating signal to prevent the buildup of + a DC bias that will stop any update. Two modes can be used for the generation + of this signal Software by writing to the display or Hardware by supplying the + External COM inversion signal. + +allOf: + - $ref: panel/panel-common.yaml# + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +properties: + compatible: + const: sharp,ls027b7dh01 + + reg: + maxItems: 1 + + spi-cs-high: true + + spi-lsb-first: true + + spi-max-frequency: + maximum: 2000000 + + enable-gpios: + maxItems: 1 + + pwms: + maxItems: 1 + description: External COM inversion signal + +required: + - compatible + - reg + - spi-lsb-first + - enable-gpios + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + spi { + #address-cells = <1>; + #size-cells = <0>; + + display@0{ + compatible = "sharp,ls027b7dh01"; + reg = <0>; + spi-cs-high; + spi-lsb-first; + spi-max-frequency = <2000000>; + enable-gpios = <&gpiof 3 GPIO_ACTIVE_HIGH>; + pwms = <&pwm 1 1000000000 0>; + }; + }; + +... -- 2.41.0
