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From 615467f56356a2054d3a86854d391b7a2e0d5811 Mon Sep 17 00:00:00 2001
From: Stefan Wahren <wahrenst@gmx.net>
Date: Mon, 29 Apr 2019 19:35:33 +0200
Subject: [PATCH] overlays: Add PiGlow overlay
The PiGlow is a small add-on board for the Raspberry Pi that provides
18 individually controllable LEDs (SN3218) and uses the following pins:
P1 & P17 (3V3)
P2 (5V)
P3 (SDA)
P5 (SCL)
P14 (GND)
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
---
arch/arm/boot/dts/overlays/Makefile | 1 +
arch/arm/boot/dts/overlays/README | 6 ++
arch/arm/boot/dts/overlays/piglow-overlay.dts | 97 +++++++++++++++++++
3 files changed, 104 insertions(+)
create mode 100644 arch/arm/boot/dts/overlays/piglow-overlay.dts
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -97,6 +97,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
pi3-disable-wifi.dtbo \
pi3-miniuart-bt.dtbo \
pibell.dtbo \
+ piglow.dtbo \
piscreen.dtbo \
piscreen2r.dtbo \
pisound.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -1532,6 +1532,12 @@ Params: alsaname Set the
"PiBell")
+Name: piglow
+Info: Configures the PiGlow by pimoroni.com
+Load: dtoverlay=piglow
+Params: <None>
+
+
Name: piscreen
Info: PiScreen display by OzzMaker.com
Load: dtoverlay=piscreen,<param>=<val>
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/piglow-overlay.dts
@@ -0,0 +1,97 @@
+// Definitions for SN3218 LED driver from Si-En Technology on PiGlow
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "brcm,bcm2708";
+
+ fragment@0 {
+ target = <&i2c_arm>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ sn3218@54 {
+ compatible = "si-en,sn3218";
+ reg = <0x54>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ led@1 {
+ reg = <1>;
+ label = "piglow:red:led1";
+ };
+ led@2 {
+ reg = <2>;
+ label = "piglow:orange:led2";
+ };
+ led@3 {
+ reg = <3>;
+ label = "piglow:yellow:led3";
+ };
+ led@4 {
+ reg = <4>;
+ label = "piglow:green:led4";
+ };
+ led@5 {
+ reg = <5>;
+ label = "piglow:blue:led5";
+ };
+ led@6 {
+ reg = <6>;
+ label = "piglow:green:led6";
+ };
+ led@7 {
+ reg = <7>;
+ label = "piglow:red:led7";
+ };
+ led@8 {
+ reg = <8>;
+ label = "piglow:orange:led8";
+ };
+ led@9 {
+ reg = <9>;
+ label = "piglow:yellow:led9";
+ };
+ led@10 {
+ reg = <10>;
+ label = "piglow:white:led10";
+ };
+ led@11 {
+ reg = <11>;
+ label = "piglow:white:led11";
+ };
+ led@12 {
+ reg = <12>;
+ label = "piglow:blue:led12";
+ };
+ led@13 {
+ reg = <13>;
+ label = "piglow:white:led13";
+ };
+ led@14 {
+ reg = <14>;
+ label = "piglow:green:led14";
+ };
+ led@15 {
+ reg = <15>;
+ label = "piglow:blue:led15";
+ };
+ led@16 {
+ reg = <16>;
+ label = "piglow:yellow:led16";
+ };
+ led@17 {
+ reg = <17>;
+ label = "piglow:orange:led17";
+ };
+ led@18 {
+ reg = <18>;
+ label = "piglow:red:led18";
+ };
+ };
+ };
+ };
+};
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