bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0426-overlays-Add-timeout_ms-parameter-to-gpio-poweroff.patch b/target/linux/bcm27xx/patches-5.4/950-0426-overlays-Add-timeout_ms-parameter-to-gpio-poweroff.patch
new file mode 100644
index 0000000000..213e8b8d9d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0426-overlays-Add-timeout_ms-parameter-to-gpio-poweroff.patch
@@ -0,0 +1,34 @@
+From 04f569021b0d24ec9f5c3671447b77157c859d16 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Fri, 7 Feb 2020 09:51:31 +0000
+Subject: [PATCH] overlays: Add timeout_ms parameter to gpio-poweroff
+
+The timeout_ms parameter specifies in milliseconds how long the kernel
+waits for power-down before issuing a WARN. The default value is 3000 ms.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/overlays/README                    | 2 ++
+ arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts | 1 +
+ 2 files changed, 3 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -821,6 +821,8 @@ Params: gpiopin                 GPIO for
+         input                   Set if the gpio pin should be configured as
+                                 an input.
+         export                  Set to export the configured pin to sysfs
++        timeout_ms              Specify (in ms) how long the kernel waits for
++                                power-down before issuing a WARN (default 3000).
+ 
+ 
+ Name:   gpio-shutdown
+--- a/arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts
++++ b/arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts
+@@ -32,5 +32,6 @@
+ 		active_low =    <&power_ctrl>,"gpios:8";
+ 		input =         <&power_ctrl>,"input?";
+ 		export =        <&power_ctrl>,"export?";
++		timeout_ms =    <&power_ctrl>,"timeout-ms:0";
+ 	};
+ };