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authorGregory CLEMENT <gregory.clement@free-electrons.com>2017-07-12 13:23:11 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-11 09:08:48 -0700
commit3c2bf2bd88292521ececca2ff7576f6f6bb57ab6 (patch)
tree6911e07df2e87d26ba6a3da207221a8c8dc8ac2f /arch
parent31cd127ca69a1aedd24b9aa7ac806e6071c84655 (diff)
downloadlinux-linaro-stable-3c2bf2bd88292521ececca2ff7576f6f6bb57ab6.tar.gz
ARM: dts: armada-38x: Fix irq type for pca955
commit 8d4514173211586c6238629b1ef1e071927735f5 upstream. As written in the datasheet the PCA955 can only handle low level irq and not edge irq. Without this fix the interrupt is not usable for pca955: the gpio-pca953x driver already set the irq type as low level which is incompatible with edge type, then the kernel prevents using the interrupt: "irq: type mismatch, failed to map hwirq-18 for /soc/internal-regs/gpio@18100!" Fixes: 928413bd859c ("ARM: mvebu: Add Armada 388 General Purpose Development Board support") Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/boot/dts/armada-388-gp.dts4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/armada-388-gp.dts b/arch/arm/boot/dts/armada-388-gp.dts
index cd316021d6ce..6c1b45c1af66 100644
--- a/arch/arm/boot/dts/armada-388-gp.dts
+++ b/arch/arm/boot/dts/armada-388-gp.dts
@@ -89,7 +89,7 @@
pinctrl-names = "default";
pinctrl-0 = <&pca0_pins>;
interrupt-parent = <&gpio0>;
- interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+ interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
@@ -101,7 +101,7 @@
compatible = "nxp,pca9555";
pinctrl-names = "default";
interrupt-parent = <&gpio0>;
- interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+ interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;