ARM: Kirkwood: fix ns2 gpios by converting to pinctrl

Note that the pinctrl conversion also fixes GPIO support for ns2 boards.
Since commit f9e75922: "ARM: Kirkwood: Make use of mvebu pincltl and
gpio", the mvbu_gpio driver is used for DT boards. As mvbu_gpio relies
on the pinctrl driver, then a pinctrl definition must be given to allow
the GPIO configuration.
Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/kirkwood-ns2-common.dtsi

 /include/ "kirkwood.dtsi"
+/include/ "kirkwood-6281.dtsi"
 
 / {
 	chosen {
@@ -6,6 +7,21 @@ chosen {
 	};
 
 	ocp@f1000000 {
+		pinctrl: pinctrl@10000 {
+			pinctrl-0 = < &pmx_spi &pmx_twsi0 &pmx_uart0
+					&pmx_ns2_sata0 &pmx_ns2_sata1>;
+			pinctrl-names = "default";
+
+			pmx_ns2_sata0: pmx-ns2-sata0 {
+				marvell,pins = "mpp21";
+				marvell,function = "sata0";
+			};
+			pmx_ns2_sata1: pmx-ns2-sata1 {
+				marvell,pins = "mpp20";
+				marvell,function = "sata1";
+			};
+		};
+
 		serial@12000 {
 			clock-frequency = <166666667>;
 			status = "okay";

arch/arm/mach-kirkwood/board-ns2.c

@@ -18,47 +18,11 @@
 #include <linux/gpio.h>
 #include <linux/of.h>
 #include "common.h"
-#include "mpp.h"
 
 static struct mv643xx_eth_platform_data ns2_ge00_data = {
 	.phy_addr	= MV643XX_ETH_PHY_ADDR(8),
 };
 
-static unsigned int ns2_mpp_config[] __initdata = {
-	MPP0_SPI_SCn,
-	MPP1_SPI_MOSI,
-	MPP2_SPI_SCK,
-	MPP3_SPI_MISO,
-	MPP4_NF_IO6,
-	MPP5_NF_IO7,
-	MPP6_SYSRST_OUTn,
-	MPP7_GPO,		/* Fan speed (bit 1) */
-	MPP8_TW0_SDA,
-	MPP9_TW0_SCK,
-	MPP10_UART0_TXD,
-	MPP11_UART0_RXD,
-	MPP12_GPO,		/* Red led */
-	MPP14_GPIO,		/* USB fuse */
-	MPP16_GPIO,		/* SATA 0 power */
-	MPP17_GPIO,		/* SATA 1 power */
-	MPP18_NF_IO0,
-	MPP19_NF_IO1,
-	MPP20_SATA1_ACTn,
-	MPP21_SATA0_ACTn,
-	MPP22_GPIO,		/* Fan speed (bit 0) */
-	MPP23_GPIO,		/* Fan power */
-	MPP24_GPIO,		/* USB mode select */
-	MPP25_GPIO,		/* Fan rotation fail */
-	MPP26_GPIO,		/* USB device vbus */
-	MPP28_GPIO,		/* USB enable host vbus */
-	MPP29_GPIO,		/* Blue led (slow register) */
-	MPP30_GPIO,		/* Blue led (command register) */
-	MPP31_GPIO,		/* Board power off */
-	MPP32_GPIO,		/* Power button (0 = Released, 1 = Pushed) */
-	MPP33_GPO,		/* Fan speed (bit 2) */
-	0
-};
-
 #define NS2_GPIO_POWER_OFF	31
 
 static void ns2_power_off(void)
@@ -71,8 +35,6 @@ void __init ns2_init(void)
 	/*
 	 * Basic setup. Needs to be called early.
 	 */
-	kirkwood_mpp_conf(ns2_mpp_config);
-
 	if (of_machine_is_compatible("lacie,netspace_lite_v2") ||
 	    of_machine_is_compatible("lacie,netspace_mini_v2"))
 		ns2_ge00_data.phy_addr = MV643XX_ETH_PHY_ADDR(0);