ARM: nomadik: move GPIO and pinctrl to device tree

This moves the instances of the Nomadik pin controller and the
Nomadik GPIO blocks (also handled by the GPIO driver) over to
the device tree. A new compatible string is added to the
pin control driver in the process.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/boot/dts/ste-nomadik-stn8815.dtsi

@@ -35,6 +35,58 @@ mtu1 {
 		interrupts = <5>;
 	};
 
+	gpio0: gpio@101e4000 {
+		compatible = "st,nomadik-gpio";
+		reg =  <0x101e4000 0x80>;
+		interrupt-parent = <&vica>;
+		interrupts = <6>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-bank = <0>;
+	};
+
+	gpio1: gpio@101e5000 {
+		compatible = "st,nomadik-gpio";
+		reg =  <0x101e5000 0x80>;
+		interrupt-parent = <&vica>;
+		interrupts = <7>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-bank = <1>;
+	};
+
+	gpio2: gpio@101e6000 {
+		compatible = "st,nomadik-gpio";
+		reg =  <0x101e6000 0x80>;
+		interrupt-parent = <&vica>;
+		interrupts = <8>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-bank = <2>;
+	};
+
+	gpio3: gpio@101e7000 {
+		compatible = "st,nomadik-gpio";
+		reg =  <0x101e7000 0x80>;
+		interrupt-parent = <&vica>;
+		interrupts = <9>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		gpio-bank = <3>;
+	};
+
+	pinctrl {
+		compatible = "stericsson,nmk-pinctrl-stn8815";
+	};
+
 	/* A NAND flash of 128 MiB */
 	fsmc: flash@40000000 {
 		compatible = "stericsson,fsmc-nand";

arch/arm/mach-nomadik/cpu-8815.c

@@ -153,13 +153,15 @@ static int __init cpu8815_init(void)
 		/* No custom data yet */
 	};
 
+	/* For e.g. device tree boots */
+	if (!machine_is_nomadik())
+		return 0;
+
 	cpu8815_add_gpios(cpu8815_gpio_base, ARRAY_SIZE(cpu8815_gpio_base),
 			  IRQ_GPIO0, &pdata);
 	cpu8815_add_pinctrl(NULL, "pinctrl-stn8815");
-	if (machine_is_nomadik()) {
-		amba_apb_device_add(NULL, "rng", NOMADIK_RNG_BASE, SZ_4K, 0, 0, NULL, 0);
-		amba_apb_device_add(NULL, "rtc-pl031", NOMADIK_RTC_BASE, SZ_4K, IRQ_RTC_RTT, 0, NULL, 0);
-	}
+	amba_apb_device_add(NULL, "rng", NOMADIK_RNG_BASE, SZ_4K, 0, 0, NULL, 0);
+	amba_apb_device_add(NULL, "rtc-pl031", NOMADIK_RTC_BASE, SZ_4K, IRQ_RTC_RTT, 0, NULL, 0);
 	return 0;
 }
 arch_initcall(cpu8815_init);
@@ -263,6 +265,16 @@ static struct fsmc_nand_platform_data cpu8815_nand_data = {
 
 /* These are mostly to get the right device names for the clock lookups */
 static struct of_dev_auxdata cpu8815_auxdata_lookup[] __initdata = {
+	OF_DEV_AUXDATA("st,nomadik-gpio", NOMADIK_GPIO0_BASE,
+		"gpio.0", NULL),
+	OF_DEV_AUXDATA("st,nomadik-gpio", NOMADIK_GPIO1_BASE,
+		"gpio.1", NULL),
+	OF_DEV_AUXDATA("st,nomadik-gpio", NOMADIK_GPIO2_BASE,
+		"gpio.2", NULL),
+	OF_DEV_AUXDATA("st,nomadik-gpio", NOMADIK_GPIO3_BASE,
+		"gpio.3", NULL),
+	OF_DEV_AUXDATA("stericsson,nmk-pinctrl-stn8815", 0,
+		"pinctrl-stn8815", NULL),
 	OF_DEV_AUXDATA("arm,primecell", NOMADIK_UART0_BASE,
 		"uart0", NULL),
 	OF_DEV_AUXDATA("arm,primecell", NOMADIK_UART1_BASE,
@@ -283,6 +295,7 @@ static void __init cpu8815_init_of(void)
 	/* At full speed latency must be >=2, so 0x249 in low bits */
 	l2x0_of_init(0x00730249, 0xfe000fff);
 #endif
+	pinctrl_register_mappings(nhk8815_pinmap, ARRAY_SIZE(nhk8815_pinmap));
 	of_platform_populate(NULL, of_default_bus_match_table,
 			cpu8815_auxdata_lookup, NULL);
 }

drivers/pinctrl/pinctrl-nomadik.c

@@ -1845,6 +1845,10 @@ static struct pinctrl_desc nmk_pinctrl_desc = {
 };
 
 static const struct of_device_id nmk_pinctrl_match[] = {
+	{
+		.compatible = "stericsson,nmk-pinctrl-stn8815",
+		.data = (void *)PINCTRL_NMK_STN8815,
+	},
 	{
 		.compatible = "stericsson,nmk_pinctrl",
 		.data = (void *)PINCTRL_NMK_DB8500,