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domenico
2025-06-24 13:14:22 +02:00
commit 4002f145fc
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target/linux/bcm27xx/patches-5.10/950-0518-overlays-Add-minipitft13-overlay.patch Normal file
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@@ -0,0 +1,100 @@
From 6c6596610381249719e87e324a9689cabc2a7cd8 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Thu, 18 Feb 2021 21:05:44 +0000
Subject: [PATCH] overlays: Add minipitft13 overlay
minipitft13 is an overlay for the Adafruit 1.3" 240x240 display
(code 4484).
See: https://github.com/raspberrypi/firmware/issues/1524
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
arch/arm/boot/dts/overlays/Makefile | 1 +
.../boot/dts/overlays/minipitft13-overlay.dts | 70 +++++++++++++++++++
2 files changed, 71 insertions(+)
create mode 100644 arch/arm/boot/dts/overlays/minipitft13-overlay.dts
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -119,6 +119,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
merus-amp.dtbo \
midi-uart0.dtbo \
midi-uart1.dtbo \
+ minipitft13.dtbo \
miniuart-bt.dtbo \
mmc.dtbo \
mpu6050.dtbo \
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/minipitft13-overlay.dts
@@ -0,0 +1,70 @@
+/*
+ * Device Tree overlay for Adafruit Mini PiTFT 1.3" and 1.5" 240x240 Display
+ *
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "brcm,bcm2835";
+
+ fragment@0 {
+ target = <&spi0>;
+ __overlay__ {
+ status = "okay";
+
+ spidev@0{
+ status = "disabled";
+ };
+
+ spidev@1{
+ status = "disabled";
+ };
+ };
+ };
+
+ fragment@1 {
+ target = <&gpio>;
+ __overlay__ {
+ pitft_pins: pitft_pins {
+ brcm,pins = <25>;
+ brcm,function = <1>; /* out */
+ brcm,pull = <0>; /* none */
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&spi0>;
+ __overlay__ {
+ /* needed to avoid dtc warning */
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pitft: pitft@0 {
+ compatible = "fbtft,minipitft13";
+ reg = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pitft_pins>;
+ spi-max-frequency = <32000000>;
+ rotate = <0>;
+ width = <240>;
+ height = <240>;
+ buswidth = <8>;
+ dc-gpios = <&gpio 25 0>;
+ led-gpios = <&gpio 26 0>;
+ debug = <0>;
+ };
+ };
+ };
+
+ __overrides__ {
+ speed = <&pitft>,"spi-max-frequency:0";
+ rotate = <&pitft>,"rotate:0";
+ width = <&pitft>,"width:0";
+ height = <&pitft>,"height:0";
+ fps = <&pitft>,"fps:0";
+ debug = <&pitft>,"debug:0";
+ };
+};