diff options
| author | Javier Martinez Canillas <javierm@redhat.com> | 2022-04-20 00:48:20 +0300 |
|---|---|---|
| committer | Javier Martinez Canillas <javierm@redhat.com> | 2022-04-20 19:48:09 +0300 |
| commit | 1b6a7961908882b65def0bd2cffba3f2eba44226 (patch) | |
| tree | 841dadad0d47c7ab9596d1217f897e434f131074 /Documentation/devicetree/bindings/display | |
| parent | 36bf0611600dd3187fe478833ba804e7976fcae5 (diff) | |
| download | linux-1b6a7961908882b65def0bd2cffba3f2eba44226.tar.xz | |
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 <javierm@redhat.com>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220419214824.335075-3-javierm@redhat.com
Diffstat (limited to 'Documentation/devicetree/bindings/display')
| -rw-r--r-- | Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml | 42 |
1 files changed, 40 insertions, 2 deletions
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>; + }; + }; |