diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile index cc5728568a085..932a2205f130a 100644 --- a/arch/arm/boot/dts/overlays/Makefile +++ b/arch/arm/boot/dts/overlays/Makefile @@ -196,6 +196,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \ spi6-2cs.dtbo \ ssd1306.dtbo \ ssd1306-spi.dtbo \ + ssd1331-spi.dtbo \ ssd1351-spi.dtbo \ superaudioboard.dtbo \ sx150x.dtbo \ diff --git a/arch/arm/boot/dts/overlays/ssd1331-spi-overlay.dts b/arch/arm/boot/dts/overlays/ssd1331-spi-overlay.dts new file mode 100644 index 0000000000000..9fd5ebf2fedae --- /dev/null +++ b/arch/arm/boot/dts/overlays/ssd1331-spi-overlay.dts @@ -0,0 +1,83 @@ +/* + * Device Tree overlay for SSD1331 based SPI OLED display + * + */ + +/dts-v1/; +/plugin/; + +/ { + compatible = "brcm,bcm2835"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + }; + }; + + fragment@1 { + target = <&spidev0>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@2 { + target = <&spidev1>; + __overlay__ { + status = "disabled"; + }; + }; + + fragment@3 { + target = <&gpio>; + __overlay__ { + ssd1331_pins: ssd1331_pins { + brcm,pins = <25 24>; + brcm,function = <1 1>; /* out out */ + }; + }; + }; + + fragment@4 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + ssd1331: ssd1331@0{ + compatible = "solomon,ssd1331"; + reg = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&ssd1331_pins>; + + spi-max-frequency = <4500000>; + bgr = <0>; + bpp = <16>; + rotate = <0>; + fps = <25>; + buswidth = <8>; + reset-gpios = <&gpio 25 1>; + dc-gpios = <&gpio 24 0>; + debug = <0>; + + solomon,height = <64>; + solomon,width = <96>; + solomon,page-offset = <0>; + }; + }; + }; + + __overrides__ { + speed = <&ssd1331>,"spi-max-frequency:0"; + rotate = <&ssd1331>,"rotate:0"; + fps = <&ssd1331>,"fps:0"; + debug = <&ssd1331>,"debug:0"; + dc_pin = <&ssd1331>,"dc-gpios:4", + <&ssd1331_pins>,"brcm,pins:4"; + reset_pin = <&ssd1331>,"reset-gpios:4", + <&ssd1331_pins>,"brcm,pins:0"; + }; +};