openwrt/target/linux/bcm27xx/patches-4.19/950-0607-overlays-i2c-gpio-Fix-the-bus-parameter.patch
Adrian Schmutzler 7d7aa2fd92 brcm2708: rename target to bcm27xx
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
2020-02-14 14:10:51 +01:00

36 lines
1.2 KiB
Diff

From d562b2187263b40aacc1a50d3f25db2cf28696d6 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Tue, 9 Jul 2019 10:32:40 +0100
Subject: [PATCH] overlays: i2c-gpio: Fix the "bus" parameter
The "bus" parameter has two functions - providing unique names for
multiple instances of the overlay, and allowing the number of the bus
(i.e. "i2c-<bus>") to be specified. The second function hasn't worked
as intended because the overlay doesn't include a "reg" property and
the firmware intentionally won't create a "reg" property if one doesn't
already exist.
Allow the bus numbering scheme to work as intended by providing a "reg"
with a default value that means "the next available one".
See: https://github.com/raspberrypi/linux/issues/3062
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
+++ b/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts
@@ -7,8 +7,10 @@
fragment@0 {
target-path = "/";
+
__overlay__ {
i2c_gpio: i2c@0 {
+ reg = <0xffffffff>;
compatible = "i2c-gpio";
gpios = <&gpio 23 0 /* sda */
&gpio 24 0 /* scl */