C++ (Cpp) exynos_tmu_init Examples

Example #1

File: tmu-exynos.c Project: EthanRS/Odroid-X2-Android-OS-4.1-Kernel

static int tmu_initialize(struct platform_device *pdev)
{
	struct tmu_info *info = platform_get_drvdata(pdev);
	unsigned int en;
	int ret;

	en = (__raw_readl(info->tmu_base + TMU_STATUS) & 0x1);

	if (!en) {
		dev_err(&pdev->dev, "failed to start tmu drvier\n");
		return -ENOENT;
	}

	if (soc_is_exynos4210())
		ret = exynos4210_tmu_init(info);
	else
		ret = exynos_tmu_init(info);

	return ret;
}

Example #2

File: tmu-exynos.c Project: droidroidz/Manta_kernel

static int __devinit tmu_probe(struct platform_device *pdev)
{
	struct tmu_info *info;
	struct resource *res;
	int ret;

	if (dev_get_platdata(&pdev->dev) == NULL) {
		dev_err(&pdev->dev, "No platform data\n");
		ret = -ENODEV;
		goto err_out;
	}

	info = devm_kzalloc(&pdev->dev, sizeof(struct tmu_info), GFP_KERNEL);
	if (info == NULL) {
		dev_err(&pdev->dev, "failed to alloc memory!\n");
		ret = -ENOMEM;
		goto err_out;
	}

	info->dev = &pdev->dev;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (res == NULL) {
		dev_err(&pdev->dev, "failed to get memory region resource\n");
		ret = -ENODEV;
		goto err_out;
	}

	info->tmu_base = devm_request_and_ioremap(&pdev->dev, res);
	if (info->tmu_base == NULL) {
		dev_err(&pdev->dev, "failed ioremap()\n");
		ret = -ENOMEM;
		goto err_out;
	}

	INIT_DELAYED_WORK_DEFERRABLE(&info->polling, tmu_monitor);

	tmu_monitor_wq = create_freezable_workqueue("tmu");
	if (!tmu_monitor_wq) {
		dev_err(&pdev->dev, "Creation of tmu_monitor_wq failed\n");
		ret = -EFAULT;
		goto err_out;
	}

	info->irq = platform_get_irq(pdev, 0);
	if (info->irq < 0) {
		dev_err(&pdev->dev, "no irq for thermal\n");
		ret = info->irq;
		goto err_wq;
	}

	platform_set_drvdata(pdev, info);

	ret = exynos_tmu_init(info);
	if (ret < 0)
		goto err_noinit;

	ret = request_irq(info->irq, tmu_irq,
			IRQF_DISABLED, "tmu", info);
	if (ret) {
		dev_err(&pdev->dev, "IRQ%d error %d\n", info->irq, ret);
		ret = -EBUSY;
		goto err_noinit;
	}

	tmu_debugfs =
		debugfs_create_file("tmu_dev_status",
				S_IRUGO, NULL, info, &tmu_dev_status_fops);
	if (IS_ERR_OR_NULL(tmu_debugfs)) {
		tmu_debugfs = NULL;
		dev_err(&pdev->dev, "%s: debugfs_create_file() failed\n", __func__);
		goto err_nodbgfs;
	}

	dev_info(&pdev->dev, "Tmu Initialization is sucessful...!\n");
	return 0;

err_nodbgfs:
	free_irq(info->irq, NULL);
err_noinit:
	platform_set_drvdata(pdev, NULL);
err_wq:
	destroy_workqueue(tmu_monitor_wq);
err_out:
	dev_err(&pdev->dev, "initialization failed.\n");
	return ret;
}