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249 lines
6.2 KiB
Diff
249 lines
6.2 KiB
Diff
From 1b8ea7066ee06404e0148702bc3e85a191f6d867 Mon Sep 17 00:00:00 2001
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From: MikeDK <m.kaplan@evva.com>
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Date: Fri, 31 Jan 2020 12:45:43 +0100
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Subject: [PATCH] overlays: Add sh1106-spi and ssd1351-spi overlays
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(#3442)
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Add overlays for SH1106 and SSD1351 based OLED displays.
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SH1106 is present in many 1.3 inch OLEDs and SSD1351 is present in
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1.5 inch RGB OLEDs from AliExpress.
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This will load the staging fbtft drivers.
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Signed-off-by: Michael Kaplan <m.kaplan@evva.com>
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---
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arch/arm/boot/dts/overlays/Makefile | 2 +
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arch/arm/boot/dts/overlays/README | 23 ++++++
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.../boot/dts/overlays/sh1106-spi-overlay.dts | 82 +++++++++++++++++++
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.../boot/dts/overlays/ssd1351-spi-overlay.dts | 81 ++++++++++++++++++
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4 files changed, 188 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/sh1106-spi-overlay.dts
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create mode 100644 arch/arm/boot/dts/overlays/ssd1351-spi-overlay.dts
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--- a/arch/arm/boot/dts/overlays/Makefile
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+++ b/arch/arm/boot/dts/overlays/Makefile
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@@ -145,6 +145,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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sdhost.dtbo \
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sdio.dtbo \
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sdtweak.dtbo \
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+ sh1106-spi.dtbo \
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smi.dtbo \
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smi-dev.dtbo \
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smi-nand.dtbo \
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@@ -169,6 +170,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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spi6-2cs.dtbo \
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ssd1306.dtbo \
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ssd1306-spi.dtbo \
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+ ssd1351-spi.dtbo \
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superaudioboard.dtbo \
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sx150x.dtbo \
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tc358743.dtbo \
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -2145,6 +2145,18 @@ Params: overclock_50 Clock (i
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(default on)
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+Name: sh1106-spi
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+Info: Overlay for SH1106 OLED via SPI using fbtft staging driver.
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+Load: dtoverlay=sh1106-spi,<param>=<val>
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+Params: speed SPI bus speed (default 4000000)
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+ rotate Display rotation (0, 90, 180 or 270; default 0)
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+ fps Delay between frame updates (default 25)
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+ debug Debug output level (0-7; default 0)
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+ dc_pin GPIO pin for D/C (default 24)
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+ reset_pin GPIO pin for RESET (default 25)
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+ height Display height (32 or 64; default 64)
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+
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+
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Name: smi
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Info: Enables the Secondary Memory Interface peripheral. Uses GPIOs 2-25!
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Load: dtoverlay=smi
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@@ -2440,6 +2452,17 @@ Params: speed SPI bus
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height Display height (32 or 64; default 64)
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+Name: ssd1351-spi
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+Info: Overlay for SSD1351 OLED via SPI using fbtft staging driver.
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+Load: dtoverlay=ssd1351-spi,<param>=<val>
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+Params: speed SPI bus speed (default 4500000)
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+ rotate Display rotation (0, 90, 180 or 270; default 0)
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+ fps Delay between frame updates (default 25)
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+ debug Debug output level (0-7; default 0)
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+ dc_pin GPIO pin for D/C (default 24)
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+ reset_pin GPIO pin for RESET (default 25)
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+
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+
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Name: superaudioboard
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Info: Configures the SuperAudioBoard sound card
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Load: dtoverlay=superaudioboard,<param>=<val>
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/sh1106-spi-overlay.dts
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@@ -0,0 +1,82 @@
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+/*
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+ * Device Tree overlay for SH1106 based SPI OLED display
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+ *
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+ */
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+
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+/dts-v1/;
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+/plugin/;
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+
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+/ {
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+ compatible = "brcm,bcm2835";
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+
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+ fragment@0 {
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+ target = <&spi0>;
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+ __overlay__ {
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+ status = "okay";
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+ };
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+ };
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+
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+ fragment@1 {
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+ target = <&spidev0>;
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+ __overlay__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ fragment@2 {
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+ target = <&spidev1>;
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+ __overlay__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ fragment@3 {
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+ target = <&gpio>;
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+ __overlay__ {
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+ sh1106_pins: sh1106_pins {
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+ brcm,pins = <25 24>;
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+ brcm,function = <1 1>; /* out out */
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+ };
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+ };
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+ };
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+
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+ fragment@4 {
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+ target = <&spi0>;
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+ __overlay__ {
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+ /* needed to avoid dtc warning */
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+
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+ sh1106: sh1106@0{
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+ compatible = "sinowealth,sh1106";
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+ reg = <0>;
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&sh1106_pins>;
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+
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+ spi-max-frequency = <4000000>;
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+ bgr = <0>;
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+ bpp = <1>;
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+ rotate = <0>;
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+ fps = <25>;
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+ buswidth = <8>;
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+ reset-gpios = <&gpio 25 0>;
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+ dc-gpios = <&gpio 24 0>;
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+ debug = <0>;
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+
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+ sinowealth,height = <64>;
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+ sinowealth,width = <128>;
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+ sinowealth,page-offset = <0>;
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+ };
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+ };
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+ };
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+
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+ __overrides__ {
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+ speed = <&sh1106>,"spi-max-frequency:0";
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+ rotate = <&sh1106>,"rotate:0";
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+ fps = <&sh1106>,"fps:0";
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+ debug = <&sh1106>,"debug:0";
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+ dc_pin = <&sh1106>,"dc-gpios:4>";
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+ reset_pin = <&sh1106>,"reset-gpios:4>";
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+ height = <&sh1106>,"sinowealth,height:0>";
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+ };
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+};
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/ssd1351-spi-overlay.dts
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@@ -0,0 +1,81 @@
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+/*
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+ * Device Tree overlay for SSD1351 based SPI OLED display
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+ *
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+ */
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+
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+/dts-v1/;
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+/plugin/;
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+
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+/ {
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+ compatible = "brcm,bcm2835";
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+
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+ fragment@0 {
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+ target = <&spi0>;
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+ __overlay__ {
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+ status = "okay";
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+ };
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+ };
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+
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+ fragment@1 {
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+ target = <&spidev0>;
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+ __overlay__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ fragment@2 {
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+ target = <&spidev1>;
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+ __overlay__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ fragment@3 {
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+ target = <&gpio>;
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+ __overlay__ {
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+ ssd1351_pins: ssd1351_pins {
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+ brcm,pins = <25 24>;
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+ brcm,function = <1 1>; /* out out */
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+ };
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+ };
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+ };
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+
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+ fragment@4 {
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+ target = <&spi0>;
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+ __overlay__ {
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+ /* needed to avoid dtc warning */
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+
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+ ssd1351: ssd1351@0{
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+ compatible = "solomon,ssd1351";
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+ reg = <0>;
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&ssd1351_pins>;
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+
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+ spi-max-frequency = <4500000>;
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+ bgr = <0>;
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+ bpp = <16>;
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+ rotate = <0>;
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+ fps = <25>;
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+ buswidth = <8>;
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+ reset-gpios = <&gpio 25 0>;
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+ dc-gpios = <&gpio 24 0>;
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+ debug = <0>;
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+
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+ solomon,height = <128>;
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+ solomon,width = <128>;
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+ solomon,page-offset = <0>;
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+ };
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+ };
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+ };
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+
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+ __overrides__ {
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+ speed = <&ssd1351>,"spi-max-frequency:0";
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+ rotate = <&ssd1351>,"rotate:0";
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+ fps = <&ssd1351>,"fps:0";
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+ debug = <&ssd1351>,"debug:0";
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+ dc_pin = <&ssd1351>,"dc-gpios:4>";
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+ reset_pin = <&ssd1351>,"reset-gpios:4>";
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+ };
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+};
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