From 1b6a7961908882b65def0bd2cffba3f2eba44226 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Tue, 19 Apr 2022 23:48:20 +0200 Subject: dt-bindings: display: ssd1307fb: Extend schema for SPI controllers The Solomon SSD130x OLED displays can either have an I2C or SPI interface, add to the schema the properties and examples for OLED devices under SPI. Signed-off-by: Javier Martinez Canillas Acked-by: Mark Brown Reviewed-by: Geert Uytterhoeven Reviewed-by: Rob Herring Link: https://patchwork.freedesktop.org/patch/msgid/20220419214824.335075-3-javierm@redhat.com --- .../bindings/display/solomon,ssd1307fb.yaml | 42 ++++++++++++++++++++-- 1 file changed, 40 insertions(+), 2 deletions(-) (limited to 'Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml') diff --git a/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml b/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml index 7653b6c3fcb6..3fbd87c2c120 100644 --- a/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml +++ b/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml @@ -38,9 +38,20 @@ properties: reset-gpios: maxItems: 1 + # Only required for SPI + dc-gpios: + description: + GPIO connected to the controller's D/C# (Data/Command) pin, + that is needed for 4-wire SPI to tell the controller if the + data sent is for a command register or the display data RAM + maxItems: 1 + vbat-supply: description: The supply for VBAT + # Only required for SPI + spi-max-frequency: true + solomon,height: $ref: /schemas/types.yaml#/definitions/uint32 default: 16 @@ -220,14 +231,14 @@ examples: #address-cells = <1>; #size-cells = <0>; - ssd1307: oled@3c { + ssd1307_i2c: oled@3c { compatible = "solomon,ssd1307"; reg = <0x3c>; pwms = <&pwm 4 3000>; reset-gpios = <&gpio2 7>; }; - ssd1306: oled@3d { + ssd1306_i2c: oled@3d { compatible = "solomon,ssd1306"; reg = <0x3c>; pwms = <&pwm 4 3000>; @@ -238,3 +249,30 @@ examples: solomon,lookup-table = /bits/ 8 <0x3f 0x3f 0x3f 0x3f>; }; }; + - | + spi { + #address-cells = <1>; + #size-cells = <0>; + + ssd1307_spi: oled@0 { + compatible = "solomon,ssd1307"; + reg = <0x0>; + pwms = <&pwm 4 3000>; + reset-gpios = <&gpio2 7>; + dc-gpios = <&gpio2 8>; + spi-max-frequency = <10000000>; + }; + + ssd1306_spi: oled@1 { + compatible = "solomon,ssd1306"; + reg = <0x1>; + pwms = <&pwm 4 3000>; + reset-gpios = <&gpio2 7>; + dc-gpios = <&gpio2 8>; + spi-max-frequency = <10000000>; + solomon,com-lrremap; + solomon,com-invdir; + solomon,com-offset = <32>; + solomon,lookup-table = /bits/ 8 <0x3f 0x3f 0x3f 0x3f>; + }; + }; -- cgit v1.2.3