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Commit 056c78d3 authored by Linus Walleij's avatar Linus Walleij
Browse files

ARM: nomadik: register GPIOs dynamically 



Register the NHK8815 GPIO devices dynamically like the Ux500 does
it.

Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent f8f5701b

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

+47 −67
Original line number Diff line number Diff line
@@ -35,86 +35,66 @@ 
#include "clock.h"

#include "cpu-8815.h"



#define __MEM_4K_RESOURCE(x) \

	.res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM}



/* The 8815 has 4 GPIO blocks, let's register them immediately */

static AMBA_APB_DEVICE(cpu8815_amba_rng, "rng", 0, NOMADIK_RNG_BASE, { }, NULL);



#define GPIO_RESOURCE(block)						\

	{								\

		.start	= NOMADIK_GPIO##block##_BASE,			\

		.end	= NOMADIK_GPIO##block##_BASE + SZ_4K - 1,	\

		.flags	= IORESOURCE_MEM,				\

	},								\

	{								\

		.start	= IRQ_GPIO##block,				\

		.end	= IRQ_GPIO##block,				\

		.flags	= IORESOURCE_IRQ,				\

	}

static struct amba_device *amba_devs[] __initdata = {

	&cpu8815_amba_rng_device

};



#define GPIO_DEVICE(block)						\

	{								\

		.name 		= "gpio",				\

		.id		= block,				\

		.num_resources 	= 2,					\

		.resource	= &cpu8815_gpio_resources[block * 2],	\

		.dev = {						\

			.platform_data = &cpu8815_gpio[block],		\

		},							\

	}

/* The 8815 has 4 GPIO blocks, let's register them immediately */

static resource_size_t __initdata cpu8815_gpio_base[] = {

	NOMADIK_GPIO0_BASE,

	NOMADIK_GPIO1_BASE,

	NOMADIK_GPIO2_BASE,

	NOMADIK_GPIO3_BASE,

};



static struct nmk_gpio_platform_data cpu8815_gpio[] = {

static struct platform_device *

cpu8815_add_gpio(int id, resource_size_t addr, int irq,

		 struct nmk_gpio_platform_data *pdata)

{

		.name = "GPIO-0-31",

		.first_gpio = 0,

		.first_irq = NOMADIK_GPIO_TO_IRQ(0),

	}, {

		.name = "GPIO-32-63",

		.first_gpio = 32,

		.first_irq = NOMADIK_GPIO_TO_IRQ(32),

	}, {

		.name = "GPIO-64-95",

		.first_gpio = 64,

		.first_irq = NOMADIK_GPIO_TO_IRQ(64),

	}, {

		.name = "GPIO-96-127", /* 124..127 not routed to pin */

		.first_gpio = 96,

		.first_irq = NOMADIK_GPIO_TO_IRQ(96),

	struct resource resources[] = {

		{

			.start	= addr,

			.end	= addr + 127,

			.flags	= IORESOURCE_MEM,

		},

		{

			.start	= irq,

			.end	= irq,

			.flags	= IORESOURCE_IRQ,

		}

	};



static struct resource cpu8815_gpio_resources[] = {

	GPIO_RESOURCE(0),

	GPIO_RESOURCE(1),

	GPIO_RESOURCE(2),

	GPIO_RESOURCE(3),

};



static struct platform_device cpu8815_platform_gpio[] = {

	GPIO_DEVICE(0),

	GPIO_DEVICE(1),

	GPIO_DEVICE(2),

	GPIO_DEVICE(3),

};

	return platform_device_register_resndata(NULL, "gpio", id,

				resources, ARRAY_SIZE(resources),

				pdata, sizeof(*pdata));

}



static AMBA_APB_DEVICE(cpu8815_amba_rng, "rng", 0, NOMADIK_RNG_BASE, { }, NULL);

void cpu8815_add_gpios(resource_size_t *base, int num, int irq,

		       struct nmk_gpio_platform_data *pdata)

{

	int first = 0;

	int i;



static struct platform_device *platform_devs[] __initdata = {

	cpu8815_platform_gpio + 0,

	cpu8815_platform_gpio + 1,

	cpu8815_platform_gpio + 2,

	cpu8815_platform_gpio + 3,

};

	for (i = 0; i < num; i++, first += 32, irq++) {

		pdata->first_gpio = first;

		pdata->first_irq = NOMADIK_GPIO_TO_IRQ(first);

		pdata->num_gpio = 32;



static struct amba_device *amba_devs[] __initdata = {

	&cpu8815_amba_rng_device

};

		cpu8815_add_gpio(i, base[i], irq, pdata);

	}

}



static int __init cpu8815_init(void)

{

	int i;

	struct nmk_gpio_platform_data pdata = {

		/* No custom data yet */

	};



	platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));

	cpu8815_add_gpios(cpu8815_gpio_base, ARRAY_SIZE(cpu8815_gpio_base),

			  IRQ_GPIO0, &pdata);

	for (i = 0; i < ARRAY_SIZE(amba_devs); i++)

		amba_device_register(amba_devs[i], &iomem_resource);

	return 0;