X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0598-overlays-Correct-gpio-fan-gpio-flags-for-4.19.patch;fp=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0598-overlays-Correct-gpio-fan-gpio-flags-for-4.19.patch;h=765874ef293711e7ecb3260e58514d759c0e28d2;hb=c2308a7e4adbb2acc8ff149f91d1ca46801c135e;hp=0000000000000000000000000000000000000000;hpb=67dcc43f3a22dc3a7ac07a7065971b426feeb043;p=openwrt%2Fstaging%2Fwigyori.git

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
index 0000000000..765874ef29
--- /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>;