static int __init sh_rtc_probe(struct platform_device *pdev)
{
	struct sh_rtc *rtc;
	struct resource *res;
	struct rtc_time r;
	char clk_name[6];
	int clk_id, ret;

	rtc = kzalloc(sizeof(struct sh_rtc), GFP_KERNEL);
	if (unlikely(!rtc))
		return -ENOMEM;

	spin_lock_init(&rtc->lock);

	/* get periodic/carry/alarm irqs */
	ret = platform_get_irq(pdev, 0);
	if (unlikely(ret <= 0)) {
		ret = -ENOENT;
		dev_err(&pdev->dev, "No IRQ resource\n");
		goto err_badres;
	}

	rtc->periodic_irq = ret;
	rtc->carry_irq = platform_get_irq(pdev, 1);
	rtc->alarm_irq = platform_get_irq(pdev, 2);

	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
	if (unlikely(res == NULL)) {
		ret = -ENOENT;
		dev_err(&pdev->dev, "No IO resource\n");
		goto err_badres;
	}

	rtc->regsize = resource_size(res);

	rtc->res = request_mem_region(res->start, rtc->regsize, pdev->name);
	if (unlikely(!rtc->res)) {
		ret = -EBUSY;
		goto err_badres;
	}

	rtc->regbase = ioremap_nocache(rtc->res->start, rtc->regsize);
	if (unlikely(!rtc->regbase)) {
		ret = -EINVAL;
		goto err_badmap;
	}

	clk_id = pdev->id;
	/* With a single device, the clock id is still "rtc0" */
	if (clk_id < 0)
		clk_id = 0;

	snprintf(clk_name, sizeof(clk_name), "rtc%d", clk_id);

	rtc->clk = clk_get(&pdev->dev, clk_name);
	if (IS_ERR(rtc->clk)) {
		/*
		 * No error handling for rtc->clk intentionally, not all
		 * platforms will have a unique clock for the RTC, and
		 * the clk API can handle the struct clk pointer being
		 * NULL.
		 */
		rtc->clk = NULL;
	}

	clk_enable(rtc->clk);

	rtc->capabilities = RTC_DEF_CAPABILITIES;
	if (pdev->dev.platform_data) {
		struct sh_rtc_platform_info *pinfo = pdev->dev.platform_data;

		/*
		 * Some CPUs have special capabilities in addition to the
		 * default set. Add those in here.
		 */
		rtc->capabilities |= pinfo->capabilities;
	}

	if (rtc->carry_irq <= 0) {
		/* register shared periodic/carry/alarm irq */
		ret = request_irq(rtc->periodic_irq, sh_rtc_shared,
				  IRQF_DISABLED, "sh-rtc", rtc);
		if (unlikely(ret)) {
			dev_err(&pdev->dev,
				"request IRQ failed with %d, IRQ %d\n", ret,
				rtc->periodic_irq);
			goto err_unmap;
		}
	} else {
		/* register periodic/carry/alarm irqs */
		ret = request_irq(rtc->periodic_irq, sh_rtc_periodic,
				  IRQF_DISABLED, "sh-rtc period", rtc);
		if (unlikely(ret)) {
			dev_err(&pdev->dev,
				"request period IRQ failed with %d, IRQ %d\n",
				ret, rtc->periodic_irq);
			goto err_unmap;
		}

		ret = request_irq(rtc->carry_irq, sh_rtc_interrupt,
//.........这里部分代码省略.........

static __devinit int tegra30_spdif_platform_probe(struct platform_device *pdev)
{
	struct tegra30_spdif *spdif;
	struct resource *mem, *memregion;
	int ret;
	u32 reg_val;

	spdif = kzalloc(sizeof(struct tegra30_spdif), GFP_KERNEL);
	if (!spdif) {
		dev_err(&pdev->dev, "Can't allocate tegra30_spdif\n");
		ret = -ENOMEM;
		goto exit;
	}
	dev_set_drvdata(&pdev->dev, spdif);

	spdif->clk_spdif_out = clk_get(&pdev->dev, "spdif_out");
	if (IS_ERR(spdif->clk_spdif_out)) {
		dev_err(&pdev->dev, "Can't retrieve spdif clock\n");
		ret = PTR_ERR(spdif->clk_spdif_out);
		goto err_free;
	}

	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!mem) {
		dev_err(&pdev->dev, "No memory resource\n");
		ret = -ENODEV;
		goto err_clk_put_spdif;
	}

	memregion = request_mem_region(mem->start, resource_size(mem),
					DRV_NAME);
	if (!memregion) {
		dev_err(&pdev->dev, "Memory region already claimed\n");
		ret = -EBUSY;
		goto err_clk_put_spdif;
	}

	spdif->regs = ioremap(mem->start, resource_size(mem));
	if (!spdif->regs) {
		dev_err(&pdev->dev, "ioremap failed\n");
		ret = -ENOMEM;
		goto err_release;
	}

	tegra30_spdif_enable_clocks(spdif);

	reg_val = TEGRA30_SPDIF_CIF_TXD_CTRL_DIRECTION_RXCIF |
		TEGRA30_SPDIF_CIF_TXD_CTRL_AUDIO_BIT16 |
		TEGRA30_SPDIF_CIF_TXD_CTRL_CLIENT_BIT16 |
		TEGRA30_SPDIF_CIF_TXD_CTRL_AUDIO_CH2 |
		TEGRA30_SPDIF_CIF_TXD_CTRL_CLIENT_CH2 |
		(3 << TEGRA30_SPDIF_CIF_TXD_CTRL_FIFO_TH_SHIFT);


	tegra30_spdif_disable_clocks(spdif);

	ret = snd_soc_register_dai(&pdev->dev, &tegra30_spdif_dai);
	if (ret) {
		dev_err(&pdev->dev, "Could not register DAI: %d\n", ret);
		ret = -ENOMEM;
		goto err_unmap;
	}

	tegra30_spdif_debug_add(spdif);

	return 0;

err_unmap:
	iounmap(spdif->regs);
err_release:
	release_mem_region(mem->start, resource_size(mem));
err_clk_put_spdif:
	clk_put(spdif->clk_spdif_out);
err_free:
	kfree(spdif);
exit:
	return ret;
}

static int tsc_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct tsc_data *ts;
	int error = 0;
	u32 rev = 0;

	ts = kzalloc(sizeof(struct tsc_data), GFP_KERNEL);
	if (!ts) {
		dev_err(dev, "cannot allocate device info\n");
		return -ENOMEM;
	}

	ts->dev = dev;
	spin_lock_init(&ts->lock);
	setup_timer(&ts->timer, tsc_poll, (unsigned long)ts);
	platform_set_drvdata(pdev, ts);

	ts->tsc_irq = platform_get_irq(pdev, 0);
	if (ts->tsc_irq < 0) {
		dev_err(dev, "cannot determine device interrupt\n");
		error = -ENODEV;
		goto error_res;
	}

	ts->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!ts->res) {
		dev_err(dev, "cannot determine register area\n");
		error = -ENODEV;
		goto error_res;
	}

	if (!request_mem_region(ts->res->start, resource_size(ts->res),
				pdev->name)) {
		dev_err(dev, "cannot claim register memory\n");
		ts->res = NULL;
		error = -EINVAL;
		goto error_res;
	}

	ts->regs = ioremap(ts->res->start, resource_size(ts->res));
	if (!ts->regs) {
		dev_err(dev, "cannot map register memory\n");
		error = -ENOMEM;
		goto error_map;
	}

	ts->clk = clk_get(dev, NULL);
	if (IS_ERR(ts->clk)) {
		dev_err(dev, "cannot claim device clock\n");
		error = PTR_ERR(ts->clk);
		goto error_clk;
	}

	error = request_threaded_irq(ts->tsc_irq, NULL, tsc_irq, IRQF_ONESHOT,
				     dev_name(dev), ts);
	if (error < 0) {
		dev_err(ts->dev, "Could not allocate ts irq\n");
		goto error_irq;
	}

	ts->input_dev = input_allocate_device();
	if (!ts->input_dev) {
		dev_err(dev, "cannot allocate input device\n");
		error = -ENOMEM;
		goto error_input;
	}
	input_set_drvdata(ts->input_dev, ts);

	ts->input_dev->name       = pdev->name;
	ts->input_dev->id.bustype = BUS_HOST;
	ts->input_dev->dev.parent = &pdev->dev;
	ts->input_dev->open	  = tsc_start;
	ts->input_dev->close	  = tsc_stop;

	clk_enable(ts->clk);
	rev = tsc_read(ts, rev);
	ts->input_dev->id.product = ((rev >>  8) & 0x07);
	ts->input_dev->id.version = ((rev >> 16) & 0xfff);
	clk_disable(ts->clk);

	__set_bit(EV_KEY,    ts->input_dev->evbit);
	__set_bit(EV_ABS,    ts->input_dev->evbit);
	__set_bit(BTN_TOUCH, ts->input_dev->keybit);

	input_set_abs_params(ts->input_dev, ABS_X, 0, 0xffff, 5, 0);
	input_set_abs_params(ts->input_dev, ABS_Y, 0, 0xffff, 5, 0);
	input_set_abs_params(ts->input_dev, ABS_PRESSURE, 0, 4095, 128, 0);

	error = input_register_device(ts->input_dev);
	if (error < 0) {
		dev_err(dev, "failed input device registration\n");
		goto error_reg;
	}

	return 0;

error_reg:
	input_free_device(ts->input_dev);
error_input:
//.........这里部分代码省略.........

/*
 * Probe for the NAND device.
 */
static int __init stm_nand_emi_probe(struct platform_device *pdev)
{
	struct platform_nand_data *pdata = pdev->dev.platform_data;
	struct plat_stmnand_data *stmdata = pdata->ctrl.priv;

	struct stm_nand_emi *data;
	struct nand_timing_data *tm;

	int res = 0;

	/* Allocate memory for the driver structure (and zero it) */
	data = kzalloc(sizeof(struct stm_nand_emi), GFP_KERNEL);
	if (!data) {
		printk(KERN_ERR NAME
		       ": Failed to allocate device structure.\n");
		return -ENOMEM;
	}

	/* Get EMI Bank base address */
	data->emi_bank = pdev->id;
	data->emi_base = emi_bank_base(data->emi_bank) +
		stmdata->emi_withinbankoffset;
	data->emi_size = (1 << 18) + 1;

	/* Configure EMI Bank */
	if (nand_config_emi(data->emi_bank, stmdata->timing_data) != 0) {
		printk(KERN_ERR NAME ": Failed to configure EMI bank "
		       "for NAND device\n");
		goto out1;
	}

	/* Request IO Memory */
	if (!request_mem_region(data->emi_base, data->emi_size, pdev->name)) {
		printk(KERN_ERR NAME ": Request mem 0x%x region failed\n",
		       data->emi_base);
		res = -ENODEV;
		goto out1;
	}

	/* Map base address */
	data->io_base = ioremap_nocache(data->emi_base, 4096);
	if (!data->io_base) {
		printk(KERN_ERR NAME ": ioremap failed for io_base 0x%08x\n",
		       data->emi_base);
		res = -ENODEV;
		goto out2;
	}

#ifdef CONFIG_STM_NAND_EMI_CACHED
	/* Map data address through cache line */
	data->io_data = ioremap_cache(data->emi_base + 4096, 4096);
	if (!data->io_data) {
		printk(KERN_ERR NAME ": ioremap failed for io_data 0x%08x\n",
		       data->emi_base + 4096);
		res = -ENOMEM;
		goto out3;
	}
#else
	data->io_data = data->io_base;
#endif
	/* Map cmd and addr addresses (emi_addr_17 and emi_addr_18) */
	data->io_cmd = ioremap_nocache(data->emi_base | (1 << 17), 1);
	if (!data->io_cmd) {
		printk(KERN_ERR NAME ": ioremap failed for io_cmd 0x%08x\n",
		       data->emi_base | (1 << 17));
		res = -ENOMEM;
		goto out4;
	}

	data->io_addr = ioremap_nocache(data->emi_base | (1 << 18), 1);
	if (!data->io_addr) {
		printk(KERN_ERR NAME ": ioremap failed for io_addr 0x%08x\n",
		       data->emi_base | (1 << 18));
		res = -ENOMEM;
		goto out5;
	}

	data->chip.priv = data;
	data->mtd.priv = &data->chip;
	data->mtd.owner = THIS_MODULE;

	/* Assign more sensible name (default is string from nand_ids.c!) */
	data->mtd.name = pdev->dev.bus_id;

	tm = stmdata->timing_data;

	data->chip.IO_ADDR_R = data->io_base;
	data->chip.IO_ADDR_W = data->io_base;
	data->chip.chip_delay = tm->chip_delay;
	data->chip.cmd_ctrl = nand_cmd_ctrl_emi;

	/* Do we have access to NAND_RBn? */
	if (stmdata->rbn_port >= 0) {
		data->rbn = stpio_request_pin(stmdata->rbn_port,
					      stmdata->rbn_pin,
					      "nand_RBn", STPIO_IN);
		if (data->rbn) {
//.........这里部分代码省略.........

static int __init mx1_camera_probe(struct platform_device *pdev)
{
	struct mx1_camera_dev *pcdev;
	struct resource *res;
	struct pt_regs regs;
	struct clk *clk;
	void __iomem *base;
	unsigned int irq;
	int err = 0;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	irq = platform_get_irq(pdev, 0);
	if (!res || (int)irq <= 0) {
		err = -ENODEV;
		goto exit;
	}

	clk = clk_get(&pdev->dev, "csi_clk");
	if (IS_ERR(clk)) {
		err = PTR_ERR(clk);
		goto exit;
	}

	pcdev = kzalloc(sizeof(*pcdev), GFP_KERNEL);
	if (!pcdev) {
		dev_err(&pdev->dev, "Could not allocate pcdev\n");
		err = -ENOMEM;
		goto exit_put_clk;
	}

	pcdev->res = res;
	pcdev->clk = clk;

	pcdev->pdata = pdev->dev.platform_data;

	if (pcdev->pdata)
		pcdev->mclk = pcdev->pdata->mclk_10khz * 10000;

	if (!pcdev->mclk) {
		dev_warn(&pdev->dev,
			 "mclk_10khz == 0! Please, fix your platform data. "
			 "Using default 20MHz\n");
		pcdev->mclk = 20000000;
	}

	INIT_LIST_HEAD(&pcdev->capture);
	spin_lock_init(&pcdev->lock);

	/*
	 * Request the regions.
	 */
	if (!request_mem_region(res->start, resource_size(res), DRIVER_NAME)) {
		err = -EBUSY;
		goto exit_kfree;
	}

	base = ioremap(res->start, resource_size(res));
	if (!base) {
		err = -ENOMEM;
		goto exit_release;
	}
	pcdev->irq = irq;
	pcdev->base = base;

	/* request dma */
	pcdev->dma_chan = imx_dma_request_by_prio(DRIVER_NAME, DMA_PRIO_HIGH);
	if (pcdev->dma_chan < 0) {
		dev_err(&pdev->dev, "Can't request DMA for MX1 CSI\n");
		err = -EBUSY;
		goto exit_iounmap;
	}
	dev_dbg(&pdev->dev, "got DMA channel %d\n", pcdev->dma_chan);

	imx_dma_setup_handlers(pcdev->dma_chan, mx1_camera_dma_irq, NULL,
			       pcdev);

	imx_dma_config_channel(pcdev->dma_chan, IMX_DMA_TYPE_FIFO,
			       IMX_DMA_MEMSIZE_32, MX1_DMA_REQ_CSI_R, 0);
	/* burst length : 16 words = 64 bytes */
	imx_dma_config_burstlen(pcdev->dma_chan, 0);

	/* request irq */
	err = claim_fiq(&fh);
	if (err) {
		dev_err(&pdev->dev, "Camera interrupt register failed \n");
		goto exit_free_dma;
	}

	set_fiq_handler(&mx1_camera_sof_fiq_start, &mx1_camera_sof_fiq_end -
						   &mx1_camera_sof_fiq_start);

	regs.ARM_r8 = (long)MX1_DMA_DIMR;
	regs.ARM_r9 = (long)MX1_DMA_CCR(pcdev->dma_chan);
	regs.ARM_r10 = (long)pcdev->base + CSICR1;
	regs.ARM_fp = (long)pcdev->base + CSISR;
	regs.ARM_sp = 1 << pcdev->dma_chan;
	set_fiq_regs(&regs);

	mxc_set_irq_fiq(irq, 1);
	enable_fiq(irq);
//.........这里部分代码省略.........

/**
 * xps2_of_probe - probe method for the PS/2 device.
 * @of_dev:	pointer to OF device structure
 * @match:	pointer to the structure used for matching a device
 *
 * This function probes the PS/2 device in the device tree.
 * It initializes the driver data structure and the hardware.
 * It returns 0, if the driver is bound to the PS/2 device, or a negative
 * value if there is an error.
 */
static int __devinit xps2_of_probe(struct platform_device *ofdev)
{
	struct resource r_irq; /* Interrupt resources */
	struct resource r_mem; /* IO mem resources */
	struct xps2data *drvdata;
	struct serio *serio;
	struct device *dev = &ofdev->dev;
	resource_size_t remap_size, phys_addr;
	int error;

	dev_info(dev, "Device Tree Probing \'%s\'\n",
			ofdev->dev.of_node->name);

	/* Get iospace for the device */
	error = of_address_to_resource(ofdev->dev.of_node, 0, &r_mem);
	if (error) {
		dev_err(dev, "invalid address\n");
		return error;
	}

	/* Get IRQ for the device */
	if (of_irq_to_resource(ofdev->dev.of_node, 0, &r_irq) == NO_IRQ) {
		dev_err(dev, "no IRQ found\n");
		return -ENODEV;
	}

	drvdata = kzalloc(sizeof(struct xps2data), GFP_KERNEL);
	if (!drvdata) {
		dev_err(dev, "Couldn't allocate device private record\n");
		return -ENOMEM;
	}

	dev_set_drvdata(dev, drvdata);

	spin_lock_init(&drvdata->lock);
	drvdata->irq = r_irq.start;

	phys_addr = r_mem.start;
	remap_size = resource_size(&r_mem);
	if (!request_mem_region(phys_addr, remap_size, DRIVER_NAME)) {
		dev_err(dev, "Couldn't lock memory region at 0x%08llX\n",
			(unsigned long long)phys_addr);
		error = -EBUSY;
		goto failed1;
	}

	/* Fill in configuration data and add them to the list */
	drvdata->base_address = ioremap(phys_addr, remap_size);
	if (drvdata->base_address == NULL) {
		dev_err(dev, "Couldn't ioremap memory at 0x%08llX\n",
			(unsigned long long)phys_addr);
		error = -EFAULT;
		goto failed2;
	}

	/* Disable all the interrupts, just in case */
	out_be32(drvdata->base_address + XPS2_IPIER_OFFSET, 0);

	/* Reset the PS2 device and abort any current transaction, to make sure
	 * we have the PS2 in a good state */
	out_be32(drvdata->base_address + XPS2_SRST_OFFSET, XPS2_SRST_RESET);

	dev_info(dev, "Xilinx PS2 at 0x%08llX mapped to 0x%p, irq=%d\n",
		 (unsigned long long)phys_addr, drvdata->base_address,
		 drvdata->irq);

	serio = &drvdata->serio;
	serio->id.type = SERIO_8042;
	serio->write = sxps2_write;
	serio->open = sxps2_open;
	serio->close = sxps2_close;
	serio->port_data = drvdata;
	serio->dev.parent = dev;
	snprintf(serio->name, sizeof(serio->name),
		 "Xilinx XPS PS/2 at %08llX", (unsigned long long)phys_addr);
	snprintf(serio->phys, sizeof(serio->phys),
		 "xilinxps2/serio at %08llX", (unsigned long long)phys_addr);

	serio_register_port(serio);

	return 0;		/* success */

failed2:
	release_mem_region(phys_addr, remap_size);
failed1:
	kfree(drvdata);
	dev_set_drvdata(dev, NULL);

	return error;
}

static int __devinit ispif_probe(struct platform_device *pdev)
{
	int rc;
	struct ispif_device *ispif;

	ispif = kzalloc(sizeof(struct ispif_device), GFP_KERNEL);
	if (!ispif) {
		pr_err("%s: no enough memory\n", __func__);
		return -ENOMEM;
	}	

	v4l2_subdev_init(&ispif->msm_sd.sd, &msm_ispif_subdev_ops);
	ispif->msm_sd.sd.internal_ops = &msm_ispif_internal_ops;
	ispif->msm_sd.sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;

	snprintf(ispif->msm_sd.sd.name,
		ARRAY_SIZE(ispif->msm_sd.sd.name), MSM_ISPIF_DRV_NAME);
	v4l2_set_subdevdata(&ispif->msm_sd.sd, ispif);

	platform_set_drvdata(pdev, &ispif->msm_sd.sd);
	mutex_init(&ispif->mutex);

	media_entity_init(&ispif->msm_sd.sd.entity, 0, NULL, 0);
	ispif->msm_sd.sd.entity.type = MEDIA_ENT_T_V4L2_SUBDEV;
	ispif->msm_sd.sd.entity.group_id = MSM_CAMERA_SUBDEV_ISPIF;
	ispif->msm_sd.sd.entity.name = pdev->name;
	ispif->msm_sd.close_seq = MSM_SD_CLOSE_1ST_CATEGORY | 0x1;
	rc = msm_sd_register(&ispif->msm_sd);
	if (rc) {
		pr_err("%s: msm_sd_register error = %d\n", __func__, rc);
		goto error_sd_register;
	}

	if (pdev->dev.of_node)
		of_property_read_u32((&pdev->dev)->of_node,
		"cell-index", &pdev->id);

	ispif->mem = platform_get_resource_byname(pdev,
		IORESOURCE_MEM, "ispif");
	if (!ispif->mem) {
		pr_err("%s: no mem resource?\n", __func__);
		rc = -ENODEV;
		goto error;
	}
	ispif->irq = platform_get_resource_byname(pdev,
		IORESOURCE_IRQ, "ispif");
	if (!ispif->irq) {
		pr_err("%s: no irq resource?\n", __func__);
		rc = -ENODEV;
		goto error;
	}
	ispif->io = request_mem_region(ispif->mem->start,
		resource_size(ispif->mem), pdev->name);
	if (!ispif->io) {
		pr_err("%s: no valid mem region\n", __func__);
		rc = -EBUSY;
		goto error;
	}
	ispif->clk_mux_mem = platform_get_resource_byname(pdev,
		IORESOURCE_MEM, "csi_clk_mux");
	if (ispif->clk_mux_mem) {
		ispif->clk_mux_io = request_mem_region(
			ispif->clk_mux_mem->start,
			resource_size(ispif->clk_mux_mem),
			ispif->clk_mux_mem->name);
		if (!ispif->clk_mux_io)
			pr_err("%s: no valid csi_mux region\n", __func__);
	}

	ispif->pdev = pdev;
	ispif->ispif_state = ISPIF_POWER_DOWN;
	ispif->open_cnt = 0;
	pr_err(" %s:%d ISPIF_POWER_DOWN %d \n",__func__,__LINE__,ispif->ispif_state);

/*                                                                                                    */
	wake_lock_init(&ispif->camera_wake_lock, WAKE_LOCK_SUSPEND, "camera_wake_lock");
/*                                                                                                    */
	
	return 0;

error:
	msm_sd_unregister(&ispif->msm_sd);
error_sd_register:
	mutex_destroy(&ispif->mutex);
	kfree(ispif);
	return rc;
}

static int __devinit csid_probe(struct platform_device *pdev)
{
	struct csid_device *new_csid_dev;
	struct msm_cam_subdev_info sd_info;
	struct intr_table_entry irq_req;

	int rc = 0;
	CDBG("%s:%d called\n", __func__, __LINE__);
	new_csid_dev = kzalloc(sizeof(struct csid_device), GFP_KERNEL);
	if (!new_csid_dev) {
		pr_err("%s: no enough memory\n", __func__);
		return -ENOMEM;
	}

	v4l2_subdev_init(&new_csid_dev->subdev, &msm_csid_subdev_ops);
	new_csid_dev->subdev.internal_ops = &msm_csid_internal_ops;
	new_csid_dev->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
	snprintf(new_csid_dev->subdev.name,
			ARRAY_SIZE(new_csid_dev->subdev.name), "msm_csid");
	v4l2_set_subdevdata(&new_csid_dev->subdev, new_csid_dev);
	platform_set_drvdata(pdev, &new_csid_dev->subdev);
	mutex_init(&new_csid_dev->mutex);

	if (pdev->dev.of_node)
		of_property_read_u32((&pdev->dev)->of_node,
			"cell-index", &pdev->id);

	CDBG("%s device id %d\n", __func__, pdev->id);
	new_csid_dev->mem = platform_get_resource_byname(pdev,
					IORESOURCE_MEM, "csid");
	if (!new_csid_dev->mem) {
		pr_err("%s: no mem resource?\n", __func__);
		rc = -ENODEV;
		goto csid_no_resource;
	}
	new_csid_dev->irq = platform_get_resource_byname(pdev,
					IORESOURCE_IRQ, "csid");
	if (!new_csid_dev->irq) {
		pr_err("%s: no irq resource?\n", __func__);
		rc = -ENODEV;
		goto csid_no_resource;
	}
	new_csid_dev->io = request_mem_region(new_csid_dev->mem->start,
		resource_size(new_csid_dev->mem), pdev->name);
	if (!new_csid_dev->io) {
		pr_err("%s: no valid mem region\n", __func__);
		rc = -EBUSY;
		goto csid_no_resource;
	}

	new_csid_dev->pdev = pdev;
	sd_info.sdev_type = CSID_DEV;
	sd_info.sd_index = pdev->id;
	sd_info.irq_num = new_csid_dev->irq->start;
	msm_cam_register_subdev_node(&new_csid_dev->subdev, &sd_info);

	media_entity_init(&new_csid_dev->subdev.entity, 0, NULL, 0);
	new_csid_dev->subdev.entity.type = MEDIA_ENT_T_V4L2_SUBDEV;
	new_csid_dev->subdev.entity.group_id = CSID_DEV;
	new_csid_dev->subdev.entity.name = pdev->name;
	new_csid_dev->subdev.entity.revision =
		new_csid_dev->subdev.devnode->num;

	/* Request for this device irq from the camera server. If the
	 * IRQ Router is present on this target, the interrupt will be
	 * handled by the camera server and the interrupt service
	 * routine called. If the request_irq call returns ENXIO, then
	 * the IRQ Router hardware is not present on this target. We
	 * have to request for the irq ourselves and register the
	 * appropriate interrupt handler. */
	irq_req.cam_hw_idx       = MSM_CAM_HW_CSI0 + pdev->id;
	irq_req.dev_name         = "csid";
	irq_req.irq_idx          = CAMERA_SS_IRQ_2 + pdev->id;
	irq_req.irq_num          = new_csid_dev->irq->start;
	irq_req.is_composite     = 0;
	irq_req.irq_trigger_type = IRQF_TRIGGER_RISING;
	irq_req.num_hwcore       = 1;
	irq_req.subdev_list[0]   = &new_csid_dev->subdev;
	irq_req.data             = (void *)new_csid_dev;
	rc = msm_cam_server_request_irq(&irq_req);
	if (rc == -ENXIO) {
		/* IRQ Router hardware is not present on this hardware.
		 * Request for the IRQ and register the interrupt handler. */
		rc = request_irq(new_csid_dev->irq->start, msm_csid_irq,
			IRQF_TRIGGER_RISING, "csid", new_csid_dev);
		if (rc < 0) {
			release_mem_region(new_csid_dev->mem->start,
				resource_size(new_csid_dev->mem));
			pr_err("%s: irq request fail\n", __func__);
			rc = -EBUSY;
			goto csid_no_resource;
		}
		disable_irq(new_csid_dev->irq->start);
	} else if (rc < 0) {
		release_mem_region(new_csid_dev->mem->start,
			resource_size(new_csid_dev->mem));
		pr_err("%s Error registering irq ", __func__);
		goto csid_no_resource;
	}

//.........这里部分代码省略.........

static int INITSECTION
cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
{
	struct cmos_rtc_board_info	*info = dev_get_platdata(dev);
	int				retval = 0;
	unsigned char			rtc_control;
	unsigned			address_space;
	u32				flags = 0;

	/* there can be only one ... */
	if (cmos_rtc.dev)
		return -EBUSY;

	if (!ports)
		return -ENODEV;

	/* Claim I/O ports ASAP, minimizing conflict with legacy driver.
	 *
	 * REVISIT non-x86 systems may instead use memory space resources
	 * (needing ioremap etc), not i/o space resources like this ...
	 */
	if (RTC_IOMAPPED)
		ports = request_region(ports->start, resource_size(ports),
				       driver_name);
	else
		ports = request_mem_region(ports->start, resource_size(ports),
					   driver_name);
	if (!ports) {
		dev_dbg(dev, "i/o registers already in use\n");
		return -EBUSY;
	}

	cmos_rtc.irq = rtc_irq;
	cmos_rtc.iomem = ports;

	/* Heuristic to deduce NVRAM size ... do what the legacy NVRAM
	 * driver did, but don't reject unknown configs.   Old hardware
	 * won't address 128 bytes.  Newer chips have multiple banks,
	 * though they may not be listed in one I/O resource.
	 */
#if	defined(CONFIG_ATARI)
	address_space = 64;
#elif defined(__i386__) || defined(__x86_64__) || defined(__arm__) \
			|| defined(__sparc__) || defined(__mips__) \
			|| defined(__powerpc__)
	address_space = 128;
#else
#warning Assuming 128 bytes of RTC+NVRAM address space, not 64 bytes.
	address_space = 128;
#endif
	if (can_bank2 && ports->end > (ports->start + 1))
		address_space = 256;

	/* For ACPI systems extension info comes from the FADT.  On others,
	 * board specific setup provides it as appropriate.  Systems where
	 * the alarm IRQ isn't automatically a wakeup IRQ (like ACPI, and
	 * some almost-clones) can provide hooks to make that behave.
	 *
	 * Note that ACPI doesn't preclude putting these registers into
	 * "extended" areas of the chip, including some that we won't yet
	 * expect CMOS_READ and friends to handle.
	 */
	if (info) {
		if (info->flags)
			flags = info->flags;
		if (info->address_space)
			address_space = info->address_space;

		if (info->rtc_day_alarm && info->rtc_day_alarm < 128)
			cmos_rtc.day_alrm = info->rtc_day_alarm;
		if (info->rtc_mon_alarm && info->rtc_mon_alarm < 128)
			cmos_rtc.mon_alrm = info->rtc_mon_alarm;
		if (info->rtc_century && info->rtc_century < 128)
			cmos_rtc.century = info->rtc_century;

		if (info->wake_on && info->wake_off) {
			cmos_rtc.wake_on = info->wake_on;
			cmos_rtc.wake_off = info->wake_off;
		}
	}

	cmos_rtc.dev = dev;
	dev_set_drvdata(dev, &cmos_rtc);

	cmos_rtc.rtc = rtc_device_register(driver_name, dev,
				&cmos_rtc_ops, THIS_MODULE);
	if (IS_ERR(cmos_rtc.rtc)) {
		retval = PTR_ERR(cmos_rtc.rtc);
		goto cleanup0;
	}

	rename_region(ports, dev_name(&cmos_rtc.rtc->dev));

	spin_lock_irq(&rtc_lock);

	if (!(flags & CMOS_RTC_FLAGS_NOFREQ)) {
		/* force periodic irq to CMOS reset default of 1024Hz;
		 *
		 * REVISIT it's been reported that at least one x86_64 ALI
		 * mobo doesn't use 32KHz here ... for portability we might
//.........这里部分代码省略.........

static __devinit int jz4740_ohci_probe(struct platform_device *pdev)
{
	int ret;
	struct usb_hcd *hcd;
	struct jz4740_ohci_hcd *jz4740_ohci;
	struct resource *res;
	int irq;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res) {
		dev_err(&pdev->dev, "Failed to get platform resource\n");
		return -ENOENT;
	}

	irq = platform_get_irq(pdev, 0);
	if (irq < 0) {
		dev_err(&pdev->dev, "Failed to get platform irq\n");
		return irq;
	}

	hcd = usb_create_hcd(&ohci_jz4740_hc_driver, &pdev->dev, "jz4740");
	if (!hcd) {
		dev_err(&pdev->dev, "Failed to create hcd.\n");
		return -ENOMEM;
	}

	jz4740_ohci = hcd_to_jz4740_hcd(hcd);

	res = request_mem_region(res->start, resource_size(res), hcd_name);
	if (!res) {
		dev_err(&pdev->dev, "Failed to request mem region.\n");
		ret = -EBUSY;
		goto err_free;
	}

	hcd->rsrc_start = res->start;
	hcd->rsrc_len = resource_size(res);
	hcd->regs = ioremap(res->start, resource_size(res));

	if (!hcd->regs) {
		dev_err(&pdev->dev, "Failed to ioremap registers.\n");
		ret = -EBUSY;
		goto err_release_mem;
	}

	jz4740_ohci->clk = clk_get(&pdev->dev, "uhc");
	if (IS_ERR(jz4740_ohci->clk)) {
		ret = PTR_ERR(jz4740_ohci->clk);
		dev_err(&pdev->dev, "Failed to get clock: %d\n", ret);
		goto err_iounmap;
	}

	jz4740_ohci->vbus = regulator_get(&pdev->dev, "vbus");
	if (IS_ERR(jz4740_ohci->vbus))
		jz4740_ohci->vbus = NULL;


	clk_set_rate(jz4740_ohci->clk, 48000000);
	clk_enable(jz4740_ohci->clk);
	if (jz4740_ohci->vbus)
		ohci_jz4740_set_vbus_power(jz4740_ohci, true);

	platform_set_drvdata(pdev, hcd);

	ohci_hcd_init(hcd_to_ohci(hcd));

	ret = usb_add_hcd(hcd, irq, 0);
	if (ret) {
		dev_err(&pdev->dev, "Failed to add hcd: %d\n", ret);
		goto err_disable;
	}

	return 0;

err_disable:
	platform_set_drvdata(pdev, NULL);
	if (jz4740_ohci->vbus) {
		regulator_disable(jz4740_ohci->vbus);
		regulator_put(jz4740_ohci->vbus);
	}
	clk_disable(jz4740_ohci->clk);

	clk_put(jz4740_ohci->clk);
err_iounmap:
	iounmap(hcd->regs);
err_release_mem:
	release_mem_region(res->start, resource_size(res));
err_free:
	usb_put_hcd(hcd);

	return ret;
}

int mantis_pci_init(struct mantis_pci *mantis)
{
	u8 latency;
	struct mantis_hwconfig *config	= mantis->hwconfig;
	struct pci_dev *pdev		= mantis->pdev;
	int err, ret = 0;

	dprintk(MANTIS_ERROR, 0, "found a %s PCI %s device on (%02x:%02x.%x),\n",
		config->model_name,
		config->dev_type,
		mantis->pdev->bus->number,
		PCI_SLOT(mantis->pdev->devfn),
		PCI_FUNC(mantis->pdev->devfn));

	err = pci_enable_device(pdev);
	if (err != 0) {
		ret = -ENODEV;
		dprintk(MANTIS_ERROR, 1, "ERROR: PCI enable failed <%i>", err);
		goto fail0;
	}

	err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
	if (err != 0) {
		dprintk(MANTIS_ERROR, 1, "ERROR: Unable to obtain 32 bit DMA <%i>", err);
		ret = -ENOMEM;
		goto fail1;
	}

	pci_set_master(pdev);

	if (!request_mem_region(pci_resource_start(pdev, 0),
				pci_resource_len(pdev, 0),
				DRIVER_NAME)) {

		dprintk(MANTIS_ERROR, 1, "ERROR: BAR0 Request failed !");
		ret = -ENODEV;
		goto fail1;
	}

	mantis->mmio = ioremap(pci_resource_start(pdev, 0),
			       pci_resource_len(pdev, 0));

	if (!mantis->mmio) {
		dprintk(MANTIS_ERROR, 1, "ERROR: BAR0 remap failed !");
		ret = -ENODEV;
		goto fail2;
	}

	pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &latency);
	mantis->latency = latency;
	mantis->revision = pdev->revision;

	dprintk(MANTIS_ERROR, 0, "    Mantis Rev %d [%04x:%04x], ",
		mantis->revision,
		mantis->pdev->subsystem_vendor,
		mantis->pdev->subsystem_device);

	dprintk(MANTIS_ERROR, 0,
		"irq: %d, latency: %d\n    memory: 0x%lx, mmio: 0x%p\n",
		mantis->pdev->irq,
		mantis->latency,
		mantis->mantis_addr,
		mantis->mmio);

	err = request_irq(pdev->irq,
			  config->irq_handler,
			  IRQF_SHARED,
			  DRIVER_NAME,
			  mantis);

	if (err != 0) {

		dprintk(MANTIS_ERROR, 1, "ERROR: IRQ registration failed ! <%d>", err);
		ret = -ENODEV;
		goto fail3;
	}

	pci_set_drvdata(pdev, mantis);
	return ret;

	/* Error conditions */
fail3:
	dprintk(MANTIS_ERROR, 1, "ERROR: <%d> I/O unmap", ret);
	if (mantis->mmio)
		iounmap(mantis->mmio);

fail2:
	dprintk(MANTIS_ERROR, 1, "ERROR: <%d> releasing regions", ret);
	release_mem_region(pci_resource_start(pdev, 0),
			   pci_resource_len(pdev, 0));

fail1:
	dprintk(MANTIS_ERROR, 1, "ERROR: <%d> disabling device", ret);
	pci_disable_device(pdev);

fail0:
	dprintk(MANTIS_ERROR, 1, "ERROR: <%d> exiting", ret);
	return ret;
}

static int pxa_irda_probe(struct platform_device *pdev)
{
	struct net_device *dev;
	struct pxa_irda *si;
	unsigned int baudrate_mask;
	int err;

	if (!pdev->dev.platform_data)
		return -ENODEV;

	err = request_mem_region(__PREG(STUART), 0x24, "IrDA") ? 0 : -EBUSY;
	if (err)
		goto err_mem_1;

	err = request_mem_region(__PREG(FICP), 0x1c, "IrDA") ? 0 : -EBUSY;
	if (err)
		goto err_mem_2;

	dev = alloc_irdadev(sizeof(struct pxa_irda));
	if (!dev)
		goto err_mem_3;

	SET_NETDEV_DEV(dev, &pdev->dev);
	si = netdev_priv(dev);
	si->dev = &pdev->dev;
	si->pdata = pdev->dev.platform_data;

	si->sir_clk = clk_get(&pdev->dev, "UARTCLK");
	si->fir_clk = clk_get(&pdev->dev, "FICPCLK");
	if (IS_ERR(si->sir_clk) || IS_ERR(si->fir_clk)) {
		err = PTR_ERR(IS_ERR(si->sir_clk) ? si->sir_clk : si->fir_clk);
		goto err_mem_4;
	}

	/*
	 * Initialise the SIR buffers
	 */
	err = pxa_irda_init_iobuf(&si->rx_buff, 14384);
	if (err)
		goto err_mem_4;
	err = pxa_irda_init_iobuf(&si->tx_buff, 4000);
	if (err)
		goto err_mem_5;

	if (gpio_is_valid(si->pdata->gpio_pwdown)) {
		err = gpio_request(si->pdata->gpio_pwdown, "IrDA switch");
		if (err)
			goto err_startup;
		err = gpio_direction_output(si->pdata->gpio_pwdown,
					!si->pdata->gpio_pwdown_inverted);
		if (err) {
			gpio_free(si->pdata->gpio_pwdown);
			goto err_startup;
		}
	}

	if (si->pdata->startup) {
		err = si->pdata->startup(si->dev);
		if (err)
			goto err_startup;
	}

	if (gpio_is_valid(si->pdata->gpio_pwdown) && si->pdata->startup)
		dev_warn(si->dev, "gpio_pwdown and startup() both defined!\n");

	dev->netdev_ops = &pxa_irda_netdev_ops;

	irda_init_max_qos_capabilies(&si->qos);

	baudrate_mask = 0;
	if (si->pdata->transceiver_cap & IR_SIRMODE)
		baudrate_mask |= IR_9600|IR_19200|IR_38400|IR_57600|IR_115200;
	if (si->pdata->transceiver_cap & IR_FIRMODE)
		baudrate_mask |= IR_4000000 << 8;

	si->qos.baud_rate.bits &= baudrate_mask;
	si->qos.min_turn_time.bits = 7;  /* 1ms or more */

	irda_qos_bits_to_value(&si->qos);

	err = register_netdev(dev);

	if (err == 0)
		dev_set_drvdata(&pdev->dev, dev);

	if (err) {
		if (si->pdata->shutdown)
			si->pdata->shutdown(si->dev);
err_startup:
		kfree(si->tx_buff.head);
err_mem_5:
		kfree(si->rx_buff.head);
err_mem_4:
		if (si->sir_clk && !IS_ERR(si->sir_clk))
			clk_put(si->sir_clk);
		if (si->fir_clk && !IS_ERR(si->fir_clk))
			clk_put(si->fir_clk);
		free_netdev(dev);
err_mem_3:
		release_mem_region(__PREG(FICP), 0x1c);
//.........这里部分代码省略.........

static int __devinit ehci_hcd_ppc_of_probe(struct platform_device *op)
{
	struct device_node *dn = op->dev.of_node;
	struct usb_hcd *hcd;
	struct ehci_hcd	*ehci = NULL;
	struct resource res;
	int irq;
	int rv;

	struct device_node *np;

	if (usb_disabled())
		return -ENODEV;

	dev_dbg(&op->dev, "initializing PPC-OF USB Controller\n");

	rv = of_address_to_resource(dn, 0, &res);
	if (rv)
		return rv;

	hcd = usb_create_hcd(&ehci_ppc_of_hc_driver, &op->dev, "PPC-OF USB");
	if (!hcd)
		return -ENOMEM;

	hcd->rsrc_start = res.start;
	hcd->rsrc_len = resource_size(&res);

	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
		printk(KERN_ERR "%s: request_mem_region failed\n", __FILE__);
		rv = -EBUSY;
		goto err_rmr;
	}

	irq = irq_of_parse_and_map(dn, 0);
	if (irq == NO_IRQ) {
		printk(KERN_ERR "%s: irq_of_parse_and_map failed\n", __FILE__);
		rv = -EBUSY;
		goto err_irq;
	}

	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
	if (!hcd->regs) {
		printk(KERN_ERR "%s: ioremap failed\n", __FILE__);
		rv = -ENOMEM;
		goto err_ioremap;
	}

	ehci = hcd_to_ehci(hcd);
	np = of_find_compatible_node(NULL, NULL, "ibm,usb-ohci-440epx");
	if (np != NULL) {
		/* claim we really affected by usb23 erratum */
		if (!of_address_to_resource(np, 0, &res))
			ehci->ohci_hcctrl_reg = ioremap(res.start +
					OHCI_HCCTRL_OFFSET, OHCI_HCCTRL_LEN);
		else
			pr_debug("%s: no ohci offset in fdt\n", __FILE__);
		if (!ehci->ohci_hcctrl_reg) {
			pr_debug("%s: ioremap for ohci hcctrl failed\n", __FILE__);
		} else {
			ehci->has_amcc_usb23 = 1;
		}
	}

	if (of_get_property(dn, "big-endian", NULL)) {
		ehci->big_endian_mmio = 1;
		ehci->big_endian_desc = 1;
	}
	if (of_get_property(dn, "big-endian-regs", NULL))
		ehci->big_endian_mmio = 1;
	if (of_get_property(dn, "big-endian-desc", NULL))
		ehci->big_endian_desc = 1;

	ehci->caps = hcd->regs;

	if (of_device_is_compatible(dn, "ibm,usb-ehci-440epx")) {
		rv = ppc44x_enable_bmt(dn);
		ehci_dbg(ehci, "Break Memory Transfer (BMT) is %senabled!\n",
				rv ? "NOT ": "");
	}

	rv = usb_add_hcd(hcd, irq, 0);
	if (rv)
		goto err_ehci;

	return 0;

err_ehci:
	if (ehci->has_amcc_usb23)
		iounmap(ehci->ohci_hcctrl_reg);
	iounmap(hcd->regs);
err_ioremap:
	irq_dispose_mapping(irq);
err_irq:
	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err_rmr:
	usb_put_hcd(hcd);

	return rv;
}

static int s3cfb_probe(struct platform_device *pdev)
{
	struct s3c_platform_fb *pdata = NULL;
	struct resource *res = NULL;
	struct s3cfb_global *fbdev[2];
	int ret = 0;
	int i = 0;

#ifdef CONFIG_EXYNOS_DEV_PD
	/* to use the runtime PM helper functions */
	pm_runtime_enable(&pdev->dev);
	/* enable the power domain */
	pm_runtime_get_sync(&pdev->dev);
#endif
	fbfimd = kzalloc(sizeof(struct s3cfb_fimd_desc), GFP_KERNEL);

	if (FIMD_MAX == 2)
		fbfimd->dual = 1;
	else
		fbfimd->dual = 0;

	for (i = 0; i < FIMD_MAX; i++) {
		/* global structure */
		fbfimd->fbdev[i] = kzalloc(sizeof(struct s3cfb_global), GFP_KERNEL);
		fbdev[i] = fbfimd->fbdev[i];
		if (!fbdev[i]) {
			dev_err(fbdev[i]->dev, "failed to allocate for	\
				global fb structure fimd[%d]!\n", i);
				ret = -ENOMEM;
			goto err0;
		}

		fbdev[i]->dev = &pdev->dev;

#if defined(CONFIG_MACH_SMDK4X12) || defined(CONFIG_FB_S5P_AMS369FG06)
		s3cfb_set_lcd_info(fbdev[i]);
#endif
		/* platform_data*/
		pdata = to_fb_plat(&pdev->dev);

		if (pdata->lcd)
			fbdev[i]->lcd = (struct s3cfb_lcd *)pdata->lcd;

		if (pdata->cfg_gpio)
			pdata->cfg_gpio(pdev);

		if (pdata->clk_on)
			pdata->clk_on(pdev, &fbdev[i]->clock);

		/* io memory */
		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
		if (!res) {
			dev_err(fbdev[i]->dev,
				"failed to get io memory region\n");
			ret = -EINVAL;
			goto err1;
		}
		res = request_mem_region(res->start,
					res->end - res->start + 1, pdev->name);
		if (!res) {
			dev_err(fbdev[i]->dev,
				"failed to request io memory region\n");
			ret = -EINVAL;
			goto err1;
		}
		fbdev[i]->regs = ioremap(res->start, res->end - res->start + 1);
		fbdev[i]->regs_org = fbdev[i]->regs;
		if (!fbdev[i]->regs) {
			dev_err(fbdev[i]->dev, "failed to remap io region\n");
			ret = -EINVAL;
			goto err1;
		}

		/* irq */
		fbdev[i]->irq = platform_get_irq(pdev, 0);
		if (request_irq(fbdev[i]->irq, s3cfb_irq_frame, IRQF_SHARED,
				pdev->name, fbdev[i])) {
			dev_err(fbdev[i]->dev, "request_irq failed\n");
			ret = -EINVAL;
			goto err2;
		}

#ifdef CONFIG_FB_S5P_TRACE_UNDERRUN
		if (request_irq(platform_get_irq(pdev, 1), s3cfb_irq_fifo,
				IRQF_DISABLED, pdev->name, fbdev[i])) {
			dev_err(fbdev[i]->dev, "request_irq failed\n");
			ret = -EINVAL;
			goto err2;
		}

		s3cfb_set_fifo_interrupt(fbdev[i], 1);
		dev_info(fbdev[i]->dev, "fifo underrun trace\n");
#endif
#ifdef CONFIG_FB_S5P_MDNIE
		/*  only FIMD0 is supported */
		if (i == 0)
			s3c_mdnie_setup();
#endif
		/* hw setting */
		s3cfb_init_global(fbdev[i]);
//.........这里部分代码省略.........

static int __devinit usb_hcd_pnx4008_probe(struct platform_device *pdev)
{
    struct usb_hcd *hcd = 0;
    struct ohci_hcd *ohci;
    const struct hc_driver *driver = &ohci_pnx4008_hc_driver;

    int ret = 0, irq;

    dev_dbg(&pdev->dev, "%s: " DRIVER_INFO " (pnx4008)\n", hcd_name);
    if (usb_disabled()) {
        err("USB is disabled");
        ret = -ENODEV;
        goto out;
    }

    if (pdev->num_resources != 2
        || pdev->resource[0].flags != IORESOURCE_MEM
        || pdev->resource[1].flags != IORESOURCE_IRQ) {
        err("Invalid resource configuration");
        ret = -ENODEV;
        goto out;
    }

    /* Enable AHB slave USB clock, needed for further USB clock control */
    __raw_writel(USB_SLAVE_HCLK_EN | (1 << 19), USB_CTRL);

    ret = i2c_add_driver(&isp1301_driver);
    if (ret < 0) {
        err("failed to connect I2C to ISP1301 USB Transceiver");
        goto out;
    }

    isp1301_configure();

    /* Enable USB PLL */
    usb_clk = clk_get(&pdev->dev, "ck_pll5");
    if (IS_ERR(usb_clk)) {
        err("failed to acquire USB PLL");
        ret = PTR_ERR(usb_clk);
        goto out1;
    }

    ret = clk_enable(usb_clk);
    if (ret < 0) {
        err("failed to start USB PLL");
        goto out2;
    }

    ret = clk_set_rate(usb_clk, 48000);
    if (ret < 0) {
        err("failed to set USB clock rate");
        goto out3;
    }

    __raw_writel(__raw_readl(USB_CTRL) | USB_HOST_NEED_CLK_EN, USB_CTRL);

    /* Set to enable all needed USB clocks */
    __raw_writel(USB_CLOCK_MASK, USB_OTG_CLK_CTRL);

    while ((__raw_readl(USB_OTG_CLK_STAT) & USB_CLOCK_MASK) !=
           USB_CLOCK_MASK) ;

    hcd = usb_create_hcd (driver, &pdev->dev, pdev->dev.bus_id);
    if (!hcd) {
        err("Failed to allocate HC buffer");
        ret = -ENOMEM;
        goto out3;
    }

    /* Set all USB bits in the Start Enable register */
    pnx4008_set_usb_bits();

    hcd->rsrc_start = pdev->resource[0].start;
    hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;
    if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
        dev_dbg(&pdev->dev, "request_mem_region failed\n");
        ret =  -ENOMEM;
        goto out4;
    }
    hcd->regs = (void __iomem *)pdev->resource[0].start;

    irq = platform_get_irq(pdev, 0);
    if (irq < 0) {
        ret = -ENXIO;
        goto out4;
    }

    pnx4008_start_hc();
    platform_set_drvdata(pdev, hcd);
    ohci = hcd_to_ohci(hcd);
    ohci_hcd_init(ohci);

    dev_info(&pdev->dev, "at 0x%p, irq %d\n", hcd->regs, hcd->irq);
    ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
    if (ret == 0)
        return ret;

    pnx4008_stop_hc();
out4:
    pnx4008_unset_usb_bits();
//.........这里部分代码省略.........