aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/bcm27xx/patches-5.10/950-0589-overlays-README-improve-the-gpio-poweroff-guide.patch
diff options
context:
space:
mode:
authorÁlvaro Fernández Rojas <noltari@gmail.com>2021-08-21 10:54:34 +0200
committerÁlvaro Fernández Rojas <noltari@gmail.com>2021-08-21 19:07:07 +0200
commit8299d1f057439f94c6a4412e2e5c5082b82a30c9 (patch)
tree1bf678d61f11f7394493be464c7876e496f7faed /target/linux/bcm27xx/patches-5.10/950-0589-overlays-README-improve-the-gpio-poweroff-guide.patch
parent33b6885975ce376ff075362b7f0890326043111b (diff)
downloadupstream-8299d1f057439f94c6a4412e2e5c5082b82a30c9.tar.gz
upstream-8299d1f057439f94c6a4412e2e5c5082b82a30c9.tar.bz2
upstream-8299d1f057439f94c6a4412e2e5c5082b82a30c9.zip
bcm27xx: add kernel 5.10 support
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0589-overlays-README-improve-the-gpio-poweroff-guide.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.10/950-0589-overlays-README-improve-the-gpio-poweroff-guide.patch30
1 files changed, 30 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0589-overlays-README-improve-the-gpio-poweroff-guide.patch b/target/linux/bcm27xx/patches-5.10/950-0589-overlays-README-improve-the-gpio-poweroff-guide.patch
new file mode 100644
index 0000000000..bf0be953ce
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0589-overlays-README-improve-the-gpio-poweroff-guide.patch
@@ -0,0 +1,30 @@
+From 81fe79da00f4130ef329d22d6b9433f1ff7f2b6f Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 26 Apr 2021 09:58:14 +0100
+Subject: [PATCH] overlays: README - improve the gpio-poweroff guide
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README | 11 +++++++++--
+ 1 file changed, 9 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -987,8 +987,15 @@ Params: <None>
+
+
+ Name: gpio-poweroff
+-Info: Drives a GPIO high or low on poweroff (including halt). Enabling this
+- overlay will prevent the ability to boot by driving GPIO3 low.
++Info: Drives a GPIO high or low on poweroff (including halt). Using this
++ overlay interferes with the normal power-down sequence, preventing the
++ kernel from resetting the SoC (a necessary step in a normal power-off
++ or reboot). This also disables the ability to triger a boot by driving
++ GPIO3 low.
++
++ Users of this overlay are required to provide an external mechanism to
++ switch off the power supply when signalled - failure to do so results
++ in a kernel BUG, increased power consumption and undefined behaviour.
+ Load: dtoverlay=gpio-poweroff,<param>=<val>
+ Params: gpiopin GPIO for signalling (default 26)
+