| /* |
| * 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(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->irq[1] = NO_IRQ; |
| |
| dev->periphid = periphid; |
| |
| dev->dev.platform_data = pdata; |
| |
| 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_platform_device(const char *name, int id, void *pdata, |
| struct resource *res, int resnum) |
| { |
| struct platform_device *dev; |
| int ret; |
| |
| dev = platform_device_alloc(name, id); |
| if (!dev) |
| return ERR_PTR(-ENOMEM); |
| |
| dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); |
| dev->dev.dma_mask = &dev->dev.coherent_dma_mask; |
| |
| ret = platform_device_add_resources(dev, res, resnum); |
| if (ret) |
| goto out_free; |
| |
| dev->dev.platform_data = pdata; |
| |
| ret = platform_device_add(dev); |
| if (ret) |
| goto out_free; |
| |
| return dev; |
| |
| out_free: |
| platform_device_put(dev); |
| return ERR_PTR(ret); |
| } |
| |
| struct platform_device * |
| dbx500_add_platform_device_4k1irq(const char *name, int id, |
| resource_size_t base, |
| int irq, void *pdata) |
| { |
| struct resource resources[] = { |
| [0] = { |
| .start = base, |
| .end = base + SZ_4K - 1, |
| .flags = IORESOURCE_MEM, |
| }, |
| [1] = { |
| .start = irq, |
| .end = irq, |
| .flags = IORESOURCE_IRQ, |
| } |
| }; |
| |
| return dbx500_add_platform_device(name, id, pdata, resources, |
| ARRAY_SIZE(resources)); |
| } |
| |
| static struct platform_device * |
| dbx500_add_gpio(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(NULL, "gpio", id, |
| resources, ARRAY_SIZE(resources), |
| pdata, sizeof(*pdata)); |
| } |
| |
| void dbx500_add_gpios(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(i, base[i], irq, pdata); |
| } |
| } |