70 строки
1.5 KiB
C
70 строки
1.5 KiB
C
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/*
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* linux/arch/arm/mach-mmp/devices.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/dma-mapping.h>
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#include <asm/irq.h>
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#include <mach/devices.h>
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int __init pxa_register_device(struct pxa_device_desc *desc,
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void *data, size_t size)
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{
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struct platform_device *pdev;
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struct resource res[2 + MAX_RESOURCE_DMA];
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int i, ret = 0, nres = 0;
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pdev = platform_device_alloc(desc->drv_name, desc->id);
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if (pdev == NULL)
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return -ENOMEM;
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pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
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memset(res, 0, sizeof(res));
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if (desc->start != -1ul && desc->size > 0) {
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res[nres].start = desc->start;
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res[nres].end = desc->start + desc->size - 1;
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res[nres].flags = IORESOURCE_MEM;
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nres++;
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}
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if (desc->irq != NO_IRQ) {
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res[nres].start = desc->irq;
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res[nres].end = desc->irq;
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res[nres].flags = IORESOURCE_IRQ;
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nres++;
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}
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for (i = 0; i < MAX_RESOURCE_DMA; i++, nres++) {
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if (desc->dma[i] == 0)
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break;
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res[nres].start = desc->dma[i];
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res[nres].end = desc->dma[i];
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res[nres].flags = IORESOURCE_DMA;
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}
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ret = platform_device_add_resources(pdev, res, nres);
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if (ret) {
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platform_device_put(pdev);
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return ret;
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}
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if (data && size) {
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ret = platform_device_add_data(pdev, data, size);
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if (ret) {
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platform_device_put(pdev);
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return ret;
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}
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}
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return platform_device_add(pdev);
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}
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