ARM: dts: armada-38x: Fix irq type for pca955

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")
Cc: stable@vger.kernel.org
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

diff --git a/arch/arm/boot/dts/armada-388-gp.dts b/arch/arm/boot/dts/armada-388-gp.dts
index 895fa6cfa15a9ee1c56c5827f5f5fe2f8e512196..563901e0ec071f0c66a4590b17fe5c3f6cfcbd69 100644 (file)
--- a/arch/arm/boot/dts/armada-388-gp.dts
+++ b/arch/arm/boot/dts/armada-388-gp.dts
@@ -75,7 +75,7 @@
                                        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;
@@ -87,7 +87,7 @@
                                        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;