brcm2708: update to latest patches from RPi Foundation

[openwrt/staging/wigyori.git] / target / linux / brcm2708 / patches-4.19 / 950-0598-overlays-Correct-gpio-fan-gpio-flags-for-4.19.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0598-overlays-Correct-gpio-fan-gpio-flags-for-4.19.patch b/target/linux/brcm2708/patches-4.19/950-0598-overlays-Correct-gpio-fan-gpio-flags-for-4.19.patch
new file mode 100644 (file)
index 0000000..765874e
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0598-overlays-Correct-gpio-fan-gpio-flags-for-4.19.patch
@@ -0,0 +1,30 @@
+From 21e4c9306bd20ab4e02f90cd452d90bc4e4a0a98 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 3 Jul 2019 20:37:14 +0100
+Subject: [PATCH] overlays: Correct gpio-fan gpio flags for 4.19
+
+The gpio-fan overlay was submitted for the 4.14 kernel where the second
+value in the Device Tree gpios declaration was ignored (thanks to an
+old-style driver), allowing the fan-control output to be active-high
+even though the declaration appears to request it be active-low.
+The gpio-fan driver in 4.19 uses GPIO descriptors and honours the
+active-low flag that the overlay (accidentally?) supplies.
+
+Change/correct the flags field to mark the GPIO as active-high.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/boot/dts/overlays/gpio-fan-overlay.dts | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/overlays/gpio-fan-overlay.dts
++++ b/arch/arm/boot/dts/overlays/gpio-fan-overlay.dts
+@@ -45,7 +45,7 @@
+               __overlay__ {
+                       fan0: gpio-fan@0 {
+                               compatible = "gpio-fan";
+-                              gpios = <&gpio 12 1>;
++                              gpios = <&gpio 12 0>;
+                               gpio-fan,speed-map = <0    0>,
+                                                                        <5000 1>;
+                               #cooling-cells = <2>;