ARM: Kirkwood: Make use of mvebu pincltl and gpio drivers

Select the generic mvebu kirkwood pincltr driver and generic mvebu
gpio driver. This requires minor changes to the DT, and the calls to
configure plat-orion gpio driver are removed.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Michael Walle <michael@walle.cc>
Tested-by: Simon Baatz <gmbnomis@gmail.com>
Tested-by: Jamie Lentin <jm@lentin.co.uk>
Tested-by: Joshua Coombs <josh.coombs@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/Kconfig

@@ -549,6 +549,8 @@ config ARCH_KIRKWOOD
 	select CPU_FEROCEON
 	select GENERIC_CLOCKEVENTS
 	select PCI
+	select PINCTRL
+	select PINCTRL_KIRKWOOD
 	select PLAT_ORION_LEGACY
 	help
 	  Support for the following Marvell Kirkwood series SoCs:

arch/arm/boot/dts/kirkwood.dtsi

@@ -4,6 +4,10 @@
 	compatible = "marvell,kirkwood";
 	interrupt-parent = <&intc>;
 
+	aliases {
+	       gpio0 = &gpio0;
+	       gpio1 = &gpio1;
+	};
 	intc: interrupt-controller {
 		compatible = "marvell,orion-intc", "marvell,intc";
 		interrupt-controller;
@@ -24,7 +28,8 @@
 			#gpio-cells = <2>;
 			gpio-controller;
 			reg = <0x10100 0x40>;
-			ngpio = <32>;
+			ngpios = <32>;
+			interrupt-controller;
 			interrupts = <35>, <36>, <37>, <38>;
 		};
 
@@ -33,7 +38,8 @@
 			#gpio-cells = <2>;
 			gpio-controller;
 			reg = <0x10140 0x40>;
-			ngpio = <18>;
+			ngpios = <18>;
+			interrupt-controller;
 			interrupts = <39>, <40>, <41>;
 		};
 

arch/arm/plat-orion/irq.c

@@ -41,7 +41,7 @@ void __init orion_irq_init(unsigned int irq_start, void __iomem *maskaddr)
 static int __init orion_add_irq_domain(struct device_node *np,
 				       struct device_node *interrupt_parent)
 {
-	int i = 0, irq_gpio;
+	int i = 0;
 	void __iomem *base;
 
 	do {
@@ -54,10 +54,6 @@ static int __init orion_add_irq_domain(struct device_node *np,
 
 	irq_domain_add_legacy(np, i * 32, 0, 0,
 			      &irq_domain_simple_ops, NULL);
-
-	irq_gpio = i * 32;
-	orion_gpio_of_init(irq_gpio);
-
 	return 0;
 }