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Date: Thu, 7 Apr 2022 22:02:01 +0200
From: Javier Martinez Canillas <javierm@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: dri-devel@...ts.freedesktop.org,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Chen-Yu Tsai <wens@...nel.org>,
Geert Uytterhoeven <geert@...ux-m68k.org>,
Mark Brown <broonie@...nel.org>,
Javier Martinez Canillas <javierm@...hat.com>,
Daniel Vetter <daniel@...ll.ch>,
David Airlie <airlied@...ux.ie>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Maxime Ripard <mripard@...nel.org>,
Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org
Subject: [PATCH 2/5] 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 compatible strings, properties and examples for SPI.
Signed-off-by: Javier Martinez Canillas <javierm@...hat.com>
---
.../bindings/display/solomon,ssd1307fb.yaml | 89 +++++++++++++++----
1 file changed, 71 insertions(+), 18 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml b/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml
index 46207f2c12b8..05e7975296a7 100644
--- a/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml
+++ b/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml
@@ -31,6 +31,15 @@ properties:
- solomon,ssd1307-i2c
- solomon,ssd1309-i2c
+ # SSD130x SPI controllers
+ - items:
+ - enum:
+ - sinowealth,sh1106-spi
+ - solomon,ssd1305-spi
+ - solomon,ssd1306-spi
+ - solomon,ssd1307-spi
+ - solomon,ssd1309-spi
+
reg:
maxItems: 1
@@ -40,9 +49,14 @@ properties:
reset-gpios:
maxItems: 1
+ dc-gpios:
+ maxItems: 1
+
vbat-supply:
description: The supply for VBAT
+ spi-max-frequency: true
+
solomon,height:
$ref: /schemas/types.yaml#/definitions/uint32
default: 16
@@ -148,19 +162,10 @@ allOf:
properties:
compatible:
contains:
- const: sinowealth,sh1106-i2c
- then:
- properties:
- solomon,dclk-div:
- default: 1
- solomon,dclk-frq:
- default: 5
-
- - if:
- properties:
- compatible:
- contains:
- const: solomon,ssd1305-i2c
+ enum:
+ - sinowealth,sh1106-i2c
+ - solomon,ssd1305-i2c
+ - solomon,ssd1305-spi
then:
properties:
solomon,dclk-div:
@@ -172,7 +177,9 @@ allOf:
properties:
compatible:
contains:
- const: solomon,ssd1306-i2c
+ enum:
+ - solomon,ssd1306-i2c
+ - solomon,ssd1306-spi
then:
properties:
solomon,dclk-div:
@@ -184,7 +191,9 @@ allOf:
properties:
compatible:
contains:
- const: solomon,ssd1307-i2c
+ enum:
+ - solomon,ssd1307-i2c
+ - solomon,ssd1307-spi
then:
properties:
solomon,dclk-div:
@@ -198,7 +207,9 @@ allOf:
properties:
compatible:
contains:
- const: solomon,ssd1309-i2c
+ enum:
+ - solomon,ssd1309-i2c
+ - solomon,ssd1309-spi
then:
properties:
solomon,dclk-div:
@@ -206,6 +217,21 @@ allOf:
solomon,dclk-frq:
default: 10
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - sinowealth,sh1106-spi
+ - solomon,ssd1305-spi
+ - solomon,ssd1306-spi
+ - solomon,ssd1307-spi
+ - solomon,ssd1309-spi
+ then:
+ required:
+ - spi-max-frequency
+ - dc-gpios
+
additionalProperties: false
examples:
@@ -214,14 +240,14 @@ examples:
#address-cells = <1>;
#size-cells = <0>;
- ssd1307: oled@3c {
+ ssd1307_i2c: oled@3c {
compatible = "solomon,ssd1307-i2c";
reg = <0x3c>;
pwms = <&pwm 4 3000>;
reset-gpios = <&gpio2 7>;
};
- ssd1306: oled@3d {
+ ssd1306_i2c: oled@3d {
compatible = "solomon,ssd1306-i2c";
reg = <0x3c>;
pwms = <&pwm 4 3000>;
@@ -232,3 +258,30 @@ examples:
solomon,lookup-table = /bits/ 8 <0x3f 0x3f 0x3f 0x3f>;
};
};
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ssd1307_spi: oled@0 {
+ compatible = "solomon,ssd1307-spi";
+ 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-spi";
+ 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>;
+ };
+ };
--
2.35.1
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