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openwrt/target/linux/bcm27xx/patches-6.6/950-0850-arm-dts-overlays-add-Pi-5-variants-for-w1-gpio-overl.patch
Álvaro Fernández Rojas 8c405cdccc bcm27xx: add 6.6 kernel patches
The patches were generated from the RPi repo with the following command:
git format-patch v6.6.34..rpi-6.1.y

Some patches needed rebasing and, as usual, the applied and reverted, wireless
drivers, Github workflows, READMEs and defconfigs patches were removed.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-06-18 18:52:49 +02:00

120 lines
2.9 KiB
Diff

From 6d9357915cc2c52538841c6d090522b3d3fe2c98 Mon Sep 17 00:00:00 2001
From: Jonathan Bell <jonathan@raspberrypi.com>
Date: Mon, 22 Jan 2024 16:21:04 +0000
Subject: [PATCH 0850/1085] arm: dts: overlays: add Pi 5 variants for w1-gpio
overlays
Make use of the latency-busting read-poll feature on Pi 5 only.
Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
---
arch/arm/boot/dts/overlays/Makefile | 2 ++
arch/arm/boot/dts/overlays/README | 8 +++++++
arch/arm/boot/dts/overlays/overlay_map.dts | 21 +++++++++++++++++++
.../boot/dts/overlays/w1-gpio-pi5-overlay.dts | 15 +++++++++++++
.../overlays/w1-gpio-pullup-pi5-overlay.dts | 15 +++++++++++++
5 files changed, 61 insertions(+)
create mode 100644 arch/arm/boot/dts/overlays/w1-gpio-pi5-overlay.dts
create mode 100644 arch/arm/boot/dts/overlays/w1-gpio-pullup-pi5-overlay.dts
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -308,7 +308,9 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
vga666.dtbo \
vl805.dtbo \
w1-gpio.dtbo \
+ w1-gpio-pi5.dtbo \
w1-gpio-pullup.dtbo \
+ w1-gpio-pullup-pi5.dtbo \
w5500.dtbo \
watterott-display.dtbo \
waveshare-can-fd-hat-mode-a.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -5044,6 +5044,10 @@ Params: gpiopin GPIO for
pullup Now enabled by default (ignored)
+Name: w1-gpio-pi5
+Info: See w1-gpio (this is the Pi 5 version)
+
+
Name: w1-gpio-pullup
Info: Configures the w1-gpio Onewire interface module.
Use this overlay if you *do* need a GPIO to drive an external pullup.
@@ -5053,6 +5057,10 @@ Params: gpiopin GPIO for
pullup Now enabled by default (ignored)
+Name: w1-gpio-pullup-pi5
+Info: See w1-gpio-pullup (this is the Pi 5 version)
+
+
Name: w5500
Info: Overlay for the Wiznet W5500 Ethernet Controller on SPI0
Load: dtoverlay=w5500,<param>=<val>
--- a/arch/arm/boot/dts/overlays/overlay_map.dts
+++ b/arch/arm/boot/dts/overlays/overlay_map.dts
@@ -460,4 +460,25 @@
vl805 {
bcm2711;
};
+
+ w1-gpio {
+ bcm2835;
+ bcm2711;
+ bcm2712 = "w1-gpio-pi5";
+ };
+
+ w1-gpio-pi5 {
+ bcm2712;
+ };
+
+ w1-gpio-pullup {
+ bcm2835;
+ bcm2711;
+ bcm2712 = "w1-gpio-pullup-pi5";
+ };
+
+ w1-gpio-pullup-pi5 {
+ bcm2712;
+ };
+
};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/w1-gpio-pi5-overlay.dts
@@ -0,0 +1,15 @@
+/dts-v1/;
+/plugin/;
+
+#include "w1-gpio-overlay.dts"
+
+/ {
+ compatible = "brcm,bcm2712";
+
+ fragment@2 {
+ target = <&w1>;
+ __overlay__ {
+ raspberrypi,delay-needs-poll;
+ };
+ };
+};
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/w1-gpio-pullup-pi5-overlay.dts
@@ -0,0 +1,15 @@
+/dts-v1/;
+/plugin/;
+
+#include "w1-gpio-pullup-overlay.dts"
+
+/ {
+ compatible = "brcm,bcm2712";
+
+ fragment@2 {
+ target = <&w1>;
+ __overlay__ {
+ raspberrypi,delay-needs-poll;
+ };
+ };
+};