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overlays: Add overlay for the Solomon SSD1327 OLED

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The ssd130x driver now supports for the Solomon SSD132x controller family.
Add a Device Tree Overlay for the SSD1327 OLED panel.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
This commit is contained in:
Javier Martinez Canillas
2024-01-13 13:22:58 +01:00
committed by Dom Cobley
parent 8c7e908817
commit a5593c6d29
3 changed files with 79 additions and 0 deletions
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1
arch/arm/boot/dts/overlays/Makefile
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@@ -263,6 +263,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
spi6-2cs.dtbo \ spi6-2cs.dtbo \
ssd1306.dtbo \ ssd1306.dtbo \
ssd1306-spi.dtbo \ ssd1306-spi.dtbo \
ssd1327-spi.dtbo \
ssd1331-spi.dtbo \ ssd1331-spi.dtbo \
ssd1351-spi.dtbo \ ssd1351-spi.dtbo \
superaudioboard.dtbo \ superaudioboard.dtbo \

8
arch/arm/boot/dts/overlays/README
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@@ -4459,6 +4459,14 @@ Params: speed SPI bus speed (default 10000000)
(default=not set) (default=not set)
Name: ssd1327-spi
Info: Overlay for SSD1327 OLED via SPI using the DRM ssd130x driver.
Load: dtoverlay=ssd1327-spi,<param>=<val>
Params: speed SPI bus speed (default 4500000)
dc_pin GPIO pin for D/C (default 24)
reset_pin GPIO pin for RESET (default 25)
Name: ssd1331-spi Name: ssd1331-spi
Info: Overlay for SSD1331 OLED via SPI using fbtft staging driver. Info: Overlay for SSD1331 OLED via SPI using fbtft staging driver.
Load: dtoverlay=ssd1331-spi,<param>=<val> Load: dtoverlay=ssd1331-spi,<param>=<val>

70
arch/arm/boot/dts/overlays/ssd1327-spi-overlay.dts Normal file
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@@ -0,0 +1,70 @@
/*
* Device Tree overlay for SSD1327 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__ {
ssd1327_pins: ssd1327_pins {
brcm,pins = <25 24>;
brcm,function = <1 1>;
};
};
};
fragment@4 {
target = <&spi0>;
__overlay__ {
/* needed to avoid dtc warning */
#address-cells = <1>;
#size-cells = <0>;
ssd1327: ssd1327@0{
compatible = "solomon,ssd1327";
reg = <0>;
pinctrl-names = "default";
pinctrl-0 = <&ssd1327_pins>;
spi-max-frequency = <4500000>;
reset-gpios = <&gpio 25 1>;
dc-gpios = <&gpio 24 0>;
};
};
};
__overrides__ {
speed = <&ssd1327>,"spi-max-frequency:0";
dc_pin = <&ssd1327>,"dc-gpios:4",
<&ssd1327_pins>,"brcm,pins:4";
reset_pin = <&ssd1327>,"reset-gpios:4",
<&ssd1327_pins>,"brcm,pins:0";
};
};