linux/arch/arm/mach-ux500/devices-common.c

95 lines
1.9 KiB
C

/*
* Copyright (C) ST-Ericsson SA 2010
*
* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
* License terms: GNU General Public License (GPL), version 2.
*/
#include <linux/kernel.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
#include <linux/irq.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/amba/bus.h>
#include <plat/gpio-nomadik.h>
#include <mach/hardware.h>
#include "devices-common.h"
struct amba_device *
dbx500_add_amba_device(struct device *parent, const char *name,
resource_size_t base, int irq, void *pdata,
unsigned int periphid)
{
struct amba_device *dev;
int ret;
dev = amba_device_alloc(name, base, SZ_4K);
if (!dev)
return ERR_PTR(-ENOMEM);
dev->dma_mask = DMA_BIT_MASK(32);
dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
dev->irq[0] = irq;
dev->periphid = periphid;
dev->dev.platform_data = pdata;
dev->dev.parent = parent;
ret = amba_device_add(dev, &iomem_resource);
if (ret) {
amba_device_put(dev);
return ERR_PTR(ret);
}
return dev;
}
static struct platform_device *
dbx500_add_gpio(struct device *parent, int id, resource_size_t addr, int irq,
struct nmk_gpio_platform_data *pdata)
{
struct resource resources[] = {
{
.start = addr,
.end = addr + 127,
.flags = IORESOURCE_MEM,
},
{
.start = irq,
.end = irq,
.flags = IORESOURCE_IRQ,
}
};
return platform_device_register_resndata(
parent,
"gpio",
id,
resources,
ARRAY_SIZE(resources),
pdata,
sizeof(*pdata));
}
void dbx500_add_gpios(struct device *parent, resource_size_t *base, int num,
int irq, struct nmk_gpio_platform_data *pdata)
{
int first = 0;
int i;
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;
dbx500_add_gpio(parent, i, base[i], irq, pdata);
}
}