147 lines
2.9 KiB
C
147 lines
2.9 KiB
C
/*
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* Copyright (C) ST-Ericsson SA 2010
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*
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* Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
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* License terms: GNU General Public License (GPL), version 2.
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*/
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#include <linux/kernel.h>
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#include <linux/dma-mapping.h>
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#include <linux/err.h>
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#include <linux/irq.h>
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#include <linux/slab.h>
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#include <linux/platform_device.h>
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#include <linux/amba/bus.h>
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#include <plat/gpio.h>
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#include <mach/hardware.h>
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#include "devices-common.h"
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struct amba_device *
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dbx500_add_amba_device(const char *name, resource_size_t base,
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int irq, void *pdata, unsigned int periphid)
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{
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struct amba_device *dev;
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int ret;
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dev = kzalloc(sizeof *dev, GFP_KERNEL);
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if (!dev)
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return ERR_PTR(-ENOMEM);
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dev->dev.init_name = name;
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dev->res.start = base;
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dev->res.end = base + SZ_4K - 1;
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dev->res.flags = IORESOURCE_MEM;
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dev->dma_mask = DMA_BIT_MASK(32);
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dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
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dev->irq[0] = irq;
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dev->irq[1] = NO_IRQ;
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dev->periphid = periphid;
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dev->dev.platform_data = pdata;
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ret = amba_device_register(dev, &iomem_resource);
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if (ret) {
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kfree(dev);
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return ERR_PTR(ret);
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}
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return dev;
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}
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static struct platform_device *
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dbx500_add_platform_device(const char *name, int id, void *pdata,
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struct resource *res, int resnum)
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{
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struct platform_device *dev;
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int ret;
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dev = platform_device_alloc(name, id);
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if (!dev)
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return ERR_PTR(-ENOMEM);
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dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
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dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
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ret = platform_device_add_resources(dev, res, resnum);
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if (ret)
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goto out_free;
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dev->dev.platform_data = pdata;
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ret = platform_device_add(dev);
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if (ret)
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goto out_free;
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return dev;
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out_free:
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platform_device_put(dev);
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return ERR_PTR(ret);
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}
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struct platform_device *
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dbx500_add_platform_device_4k1irq(const char *name, int id,
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resource_size_t base,
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int irq, void *pdata)
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{
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struct resource resources[] = {
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[0] = {
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.start = base,
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.end = base + SZ_4K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = irq,
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.end = irq,
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.flags = IORESOURCE_IRQ,
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}
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};
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return dbx500_add_platform_device(name, id, pdata, resources,
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ARRAY_SIZE(resources));
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}
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static struct platform_device *
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dbx500_add_gpio(int id, resource_size_t addr, int irq,
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struct nmk_gpio_platform_data *pdata)
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{
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struct resource resources[] = {
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{
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.start = addr,
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.end = addr + 127,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = irq,
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.end = irq,
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.flags = IORESOURCE_IRQ,
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}
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};
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return platform_device_register_resndata(NULL, "gpio", id,
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resources, ARRAY_SIZE(resources),
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pdata, sizeof(*pdata));
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}
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void dbx500_add_gpios(resource_size_t *base, int num, int irq,
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struct nmk_gpio_platform_data *pdata)
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{
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int first = 0;
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int i;
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for (i = 0; i < num; i++, first += 32, irq++) {
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pdata->first_gpio = first;
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pdata->first_irq = NOMADIK_GPIO_TO_IRQ(first);
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pdata->num_gpio = 32;
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dbx500_add_gpio(i, base[i], irq, pdata);
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}
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}
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