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dt-bindings: display: ssd1307fb: Extend schema for SPI controllers

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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
This commit is contained in:
Javier Martinez Canillas 2022-04-19 23:48:20 +02:00
parent 36bf061160
commit 1b6a796190
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GPG Key ID: C751E590D63F3D69
1 changed files with 40 additions and 2 deletions
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42
Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml
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@ -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>;
};
};