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C++ devm_rtc_device_register函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中devm_rtc_device_register函数的典型用法代码示例。如果您正苦于以下问题：C++ devm_rtc_device_register函数的具体用法？C++ devm_rtc_device_register怎么用？C++ devm_rtc_device_register使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了devm_rtc_device_register函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: rv3029c2_probe

static int rv3029c2_probe(struct i2c_client *client,
			  const struct i2c_device_id *id)
{
	struct rtc_device *rtc;
	int rc = 0;
	u8 buf[1];

	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_EMUL))
		return -ENODEV;

	rtc = devm_rtc_device_register(&client->dev, client->name,
					&rv3029c2_rtc_ops, THIS_MODULE);

	if (IS_ERR(rtc))
		return PTR_ERR(rtc);

	i2c_set_clientdata(client, rtc);

	rc = rv3029c2_i2c_get_sr(client, buf);
	if (rc < 0) {
		dev_err(&client->dev, "reading status failed\n");
		return rc;
	}

	return 0;
}
开发者ID:03199618，项目名称:linux，代码行数:26，代码来源:rtc-rv3029c2.c


示例2: da9052_rtc_probe

static int da9052_rtc_probe(struct platform_device *pdev)
{
	struct da9052_rtc *rtc;
	int ret;

	rtc = devm_kzalloc(&pdev->dev, sizeof(struct da9052_rtc), GFP_KERNEL);
	if (!rtc)
		return -ENOMEM;

	rtc->da9052 = dev_get_drvdata(pdev->dev.parent);
	platform_set_drvdata(pdev, rtc);

	ret = da9052_reg_write(rtc->da9052, DA9052_BBAT_CONT_REG, 0xFE);
	if (ret < 0) {
		rtc_err(rtc,
			"Failed to setup RTC battery charging: %d\n", ret);
		return ret;
	}

	ret = da9052_reg_update(rtc->da9052, DA9052_ALARM_Y_REG,
				DA9052_ALARM_Y_TICK_ON, 0);
	if (ret != 0)
		rtc_err(rtc, "Failed to disable TICKS: %d\n", ret);

	ret = da9052_request_irq(rtc->da9052, DA9052_IRQ_ALARM, "ALM",
				da9052_rtc_irq, rtc);
	if (ret != 0) {
		rtc_err(rtc, "irq registration failed: %d\n", ret);
		return ret;
	}

	rtc->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
				       &da9052_rtc_ops, THIS_MODULE);
	return PTR_ERR_OR_ZERO(rtc->rtc);
}
开发者ID:3null，项目名称:linux，代码行数:35，代码来源:rtc-da9052.c


示例3: ds1553_rtc_probe

static int ds1553_rtc_probe(struct platform_device *pdev)
{
	struct rtc_device *rtc;
	struct resource *res;
	unsigned int cen, sec;
	struct rtc_plat_data *pdata;
	void __iomem *ioaddr;
	int ret = 0;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res)
		return -ENODEV;
	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
	if (!pdata)
		return -ENOMEM;
	if (!devm_request_mem_region(&pdev->dev, res->start, RTC_REG_SIZE,
			pdev->name))
		return -EBUSY;

	ioaddr = devm_ioremap(&pdev->dev, res->start, RTC_REG_SIZE);
	if (!ioaddr)
		return -ENOMEM;
	pdata->ioaddr = ioaddr;
	pdata->irq = platform_get_irq(pdev, 0);

	/* turn RTC on if it was not on */
	sec = readb(ioaddr + RTC_SECONDS);
	if (sec & RTC_STOP) {
		sec &= RTC_SECONDS_MASK;
		cen = readb(ioaddr + RTC_CENTURY) & RTC_CENTURY_MASK;
		writeb(RTC_WRITE, ioaddr + RTC_CONTROL);
		writeb(sec, ioaddr + RTC_SECONDS);
		writeb(cen & RTC_CENTURY_MASK, ioaddr + RTC_CONTROL);
	}
	if (readb(ioaddr + RTC_FLAGS) & RTC_FLAGS_BLF)
		dev_warn(&pdev->dev, "voltage-low detected.\n");

	spin_lock_init(&pdata->lock);
	pdata->last_jiffies = jiffies;
	platform_set_drvdata(pdev, pdata);
	if (pdata->irq > 0) {
		writeb(0, ioaddr + RTC_INTERRUPTS);
		if (devm_request_irq(&pdev->dev, pdata->irq,
				ds1553_rtc_interrupt,
				0, pdev->name, pdev) < 0) {
			dev_warn(&pdev->dev, "interrupt not available.\n");
			pdata->irq = 0;
		}
	}

	rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
				  &ds1553_rtc_ops, THIS_MODULE);
	if (IS_ERR(rtc))
		return PTR_ERR(rtc);
	pdata->rtc = rtc;

	ret = sysfs_create_bin_file(&pdev->dev.kobj, &ds1553_nvram_attr);

	return ret;
}
开发者ID:AD5GB，项目名称:kernel_n5_3.10-experimental，代码行数:60，代码来源:rtc-ds1553.c


示例4: pcap_rtc_probe

static int __init pcap_rtc_probe(struct platform_device *pdev)
{
	struct pcap_rtc *pcap_rtc;
	int timer_irq, alarm_irq;
	int err = -ENOMEM;

	pcap_rtc = devm_kzalloc(&pdev->dev, sizeof(struct pcap_rtc),
				GFP_KERNEL);
	if (!pcap_rtc)
		return err;

	pcap_rtc->pcap = dev_get_drvdata(pdev->dev.parent);

	platform_set_drvdata(pdev, pcap_rtc);

	pcap_rtc->rtc = devm_rtc_device_register(&pdev->dev, "pcap",
					&pcap_rtc_ops, THIS_MODULE);
	if (IS_ERR(pcap_rtc->rtc))
		return PTR_ERR(pcap_rtc->rtc);

	timer_irq = pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_1HZ);
	alarm_irq = pcap_to_irq(pcap_rtc->pcap, PCAP_IRQ_TODA);

	err = devm_request_irq(&pdev->dev, timer_irq, pcap_rtc_irq, 0,
				"RTC Timer", pcap_rtc);
	if (err)
		return err;

	err = devm_request_irq(&pdev->dev, alarm_irq, pcap_rtc_irq, 0,
				"RTC Alarm", pcap_rtc);
	if (err)
		return err;

	return 0;
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:35，代码来源:rtc-pcap.c


示例5: pcf2127_probe

static int pcf2127_probe(struct i2c_client *client,
				const struct i2c_device_id *id)
{
	struct pcf2127 *pcf2127;

	dev_dbg(&client->dev, "%s\n", __func__);

	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
		return -ENODEV;

	pcf2127 = devm_kzalloc(&client->dev, sizeof(struct pcf2127),
				GFP_KERNEL);
	if (!pcf2127)
		return -ENOMEM;

	dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");

	i2c_set_clientdata(client, pcf2127);

	pcf2127->rtc = devm_rtc_device_register(&client->dev,
				pcf2127_driver.driver.name,
				&pcf2127_rtc_ops, THIS_MODULE);

	return PTR_ERR_OR_ZERO(pcf2127->rtc);
}
开发者ID:19Dan01，项目名称:linux，代码行数:25，代码来源:rtc-pcf2127.c


示例6: tx4939_rtc_probe

static int __init tx4939_rtc_probe(struct platform_device *pdev)
{
	struct rtc_device *rtc;
	struct tx4939rtc_plat_data *pdata;
	struct resource *res;
	int irq, ret;

	irq = platform_get_irq(pdev, 0);
	if (irq < 0)
		return -ENODEV;
	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
	if (!pdata)
		return -ENOMEM;
	platform_set_drvdata(pdev, pdata);

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	pdata->rtcreg = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(pdata->rtcreg))
		return PTR_ERR(pdata->rtcreg);

	spin_lock_init(&pdata->lock);
	tx4939_rtc_cmd(pdata->rtcreg, TX4939_RTCCTL_COMMAND_NOP);
	if (devm_request_irq(&pdev->dev, irq, tx4939_rtc_interrupt,
			     0, pdev->name, &pdev->dev) < 0)
		return -EBUSY;
	rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
				  &tx4939_rtc_ops, THIS_MODULE);
	if (IS_ERR(rtc))
		return PTR_ERR(rtc);
	pdata->rtc = rtc;
	ret = sysfs_create_bin_file(&pdev->dev.kobj, &tx4939_rtc_nvram_attr);

	return ret;
}
开发者ID:03199618，项目名称:linux，代码行数:34，代码来源:rtc-tx4939.c


示例7: at91_rtc_probe

/*
 * Initialize and install RTC driver
 */
static int __init at91_rtc_probe(struct platform_device *pdev)
{
	struct rtc_device *rtc;
	struct resource *regs;
	int ret = 0;

	at91_rtc_config = at91_rtc_get_config(pdev);
	if (!at91_rtc_config)
		return -ENODEV;

	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!regs) {
		dev_err(&pdev->dev, "no mmio resource defined\n");
		return -ENXIO;
	}

	irq = platform_get_irq(pdev, 0);
	if (irq < 0) {
		dev_err(&pdev->dev, "no irq resource defined\n");
		return -ENXIO;
	}

	at91_rtc_regs = devm_ioremap(&pdev->dev, regs->start,
				     resource_size(regs));
	if (!at91_rtc_regs) {
		dev_err(&pdev->dev, "failed to map registers, aborting.\n");
		return -ENOMEM;
	}

	at91_rtc_write(AT91_RTC_CR, 0);
	at91_rtc_write(AT91_RTC_MR, 0);		/* 24 hour mode */

	/* Disable all interrupts */
	at91_rtc_write_idr(AT91_RTC_ACKUPD | AT91_RTC_ALARM |
					AT91_RTC_SECEV | AT91_RTC_TIMEV |
					AT91_RTC_CALEV);

	ret = devm_request_irq(&pdev->dev, irq, at91_rtc_interrupt,
				IRQF_SHARED,
				"at91_rtc", pdev);
	if (ret) {
		dev_err(&pdev->dev, "IRQ %d already in use.\n", irq);
		return ret;
	}

	/* cpu init code should really have flagged this device as
	 * being wake-capable; if it didn't, do that here.
	 */
	if (!device_can_wakeup(&pdev->dev))
		device_init_wakeup(&pdev->dev, 1);

	rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
				&at91_rtc_ops, THIS_MODULE);
	if (IS_ERR(rtc))
		return PTR_ERR(rtc);
	platform_set_drvdata(pdev, rtc);

	dev_info(&pdev->dev, "AT91 Real Time Clock driver.\n");
	return 0;
}
开发者ID:7799，项目名称:linux，代码行数:63，代码来源:rtc-at91rm9200.c


示例8: ds1302_rtc_probe

static int __init ds1302_rtc_probe(struct platform_device *pdev)
{
	struct rtc_device *rtc;

	if (ds1302_hw_init()) {
		dev_err(&pdev->dev, "Failed to init communication channel");
		return -EINVAL;
	}

	/* Reset */
	ds1302_reset();

	/* Write a magic value to the DS1302 RAM, and see if it sticks. */
	ds1302_writebyte(RTC_ADDR_RAM0, 0x42);
	if (ds1302_readbyte(RTC_ADDR_RAM0) != 0x42) {
		dev_err(&pdev->dev, "Failed to probe");
		return -ENODEV;
	}

	rtc = devm_rtc_device_register(&pdev->dev, "ds1302",
					   &ds1302_rtc_ops, THIS_MODULE);
	if (IS_ERR(rtc))
		return PTR_ERR(rtc);

	platform_set_drvdata(pdev, rtc);

	return 0;
}
开发者ID:03199618，项目名称:linux，代码行数:28，代码来源:rtc-ds1302.c


示例9: msm6242_rtc_probe

static int __init msm6242_rtc_probe(struct platform_device *pdev)
{
	struct resource *res;
	struct msm6242_priv *priv;
	struct rtc_device *rtc;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res)
		return -ENODEV;

	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;

	priv->regs = devm_ioremap(&pdev->dev, res->start, resource_size(res));
	if (!priv->regs)
		return -ENOMEM;
	platform_set_drvdata(pdev, priv);

	rtc = devm_rtc_device_register(&pdev->dev, "rtc-msm6242",
				&msm6242_rtc_ops, THIS_MODULE);
	if (IS_ERR(rtc))
		return PTR_ERR(rtc);

	priv->rtc = rtc;
	return 0;
}
开发者ID:mikuhatsune001，项目名称:linux2.6.32，代码行数:27，代码来源:rtc-msm6242.c


示例10: ds3232_probe

static int ds3232_probe(struct device *dev, struct regmap *regmap, int irq,
			const char *name)
{
	struct ds3232 *ds3232;
	int ret;

	ds3232 = devm_kzalloc(dev, sizeof(*ds3232), GFP_KERNEL);
	if (!ds3232)
		return -ENOMEM;

	ds3232->regmap = regmap;
	ds3232->irq = irq;
	ds3232->dev = dev;
	dev_set_drvdata(dev, ds3232);

	ret = ds3232_check_rtc_status(dev);
	if (ret)
		return ret;

	if (ds3232->irq > 0) {
		ret = devm_request_threaded_irq(dev, ds3232->irq, NULL,
						ds3232_irq,
						IRQF_SHARED | IRQF_ONESHOT,
						name, dev);
		if (ret) {
			ds3232->irq = 0;
			dev_err(dev, "unable to request IRQ\n");
		} else
			device_init_wakeup(dev, 1);
	}
	ds3232->rtc = devm_rtc_device_register(dev, name, &ds3232_rtc_ops,
						THIS_MODULE);

	return PTR_ERR_OR_ZERO(ds3232->rtc);
}
开发者ID:020gzh，项目名称:linux，代码行数:35，代码来源:rtc-ds3232.c


示例11: ds1216_rtc_probe

static int __init ds1216_rtc_probe(struct platform_device *pdev)
{
	struct resource *res;
	struct ds1216_priv *priv;
	u8 dummy[8];

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res)
		return -ENODEV;
	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;

	platform_set_drvdata(pdev, priv);

	priv->ioaddr = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(priv->ioaddr))
		return PTR_ERR(priv->ioaddr);

	priv->rtc = devm_rtc_device_register(&pdev->dev, "ds1216",
					&ds1216_rtc_ops, THIS_MODULE);
	if (IS_ERR(priv->rtc))
		return PTR_ERR(priv->rtc);

	/* dummy read to get clock into a known state */
	ds1216_read(priv->ioaddr, dummy);
	return 0;
}
开发者ID:AD5GB，项目名称:kernel_n5_3.10-experimental，代码行数:28，代码来源:rtc-ds1216.c


示例12: ds1390_probe

static int ds1390_probe(struct spi_device *spi)
{
	unsigned char tmp;
	struct ds1390 *chip;
	int res;

	spi->mode = SPI_MODE_3;
	spi->bits_per_word = 8;
	spi_setup(spi);

	chip = devm_kzalloc(&spi->dev, sizeof(*chip), GFP_KERNEL);
	if (!chip) {
		dev_err(&spi->dev, "unable to allocate device memory\n");
		return -ENOMEM;
	}
	spi_set_drvdata(spi, chip);

	res = ds1390_get_reg(&spi->dev, DS1390_REG_SECONDS, &tmp);
	if (res != 0) {
		dev_err(&spi->dev, "unable to read device\n");
		return res;
	}

	chip->rtc = devm_rtc_device_register(&spi->dev, "ds1390",
					&ds1390_rtc_ops, THIS_MODULE);
	if (IS_ERR(chip->rtc)) {
		dev_err(&spi->dev, "unable to register device\n");
		res = PTR_ERR(chip->rtc);
	}

	return res;
}
开发者ID:AD5GB，项目名称:kernel_n5_3.10-experimental，代码行数:32，代码来源:rtc-ds1390.c


示例13: pcf8523_probe

static int pcf8523_probe(struct i2c_client *client,
			 const struct i2c_device_id *id)
{
	struct pcf8523 *pcf;
	int err;

	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
		return -ENODEV;

	pcf = devm_kzalloc(&client->dev, sizeof(*pcf), GFP_KERNEL);
	if (!pcf)
		return -ENOMEM;

	err = pcf8523_select_capacitance(client, true);
	if (err < 0)
		return err;

	err = pcf8523_set_pm(client, 0);
	if (err < 0)
		return err;

	pcf->rtc = devm_rtc_device_register(&client->dev, DRIVER_NAME,
				       &pcf8523_rtc_ops, THIS_MODULE);
	if (IS_ERR(pcf->rtc))
		return PTR_ERR(pcf->rtc);

	i2c_set_clientdata(client, pcf);

	return 0;
}
开发者ID:03199618，项目名称:linux，代码行数:30，代码来源:rtc-pcf8523.c


示例14: test_probe

static int test_probe(struct platform_device *plat_dev)
{
	int err;
	struct rtc_device *rtc;

	if (test_mmss64) {
		test_rtc_ops.set_mmss64 = test_rtc_set_mmss64;
		test_rtc_ops.set_mmss = NULL;
	}

	rtc = devm_rtc_device_register(&plat_dev->dev, "test",
				&test_rtc_ops, THIS_MODULE);
	if (IS_ERR(rtc)) {
		return PTR_ERR(rtc);
	}

	err = device_create_file(&plat_dev->dev, &dev_attr_irq);
	if (err)
		dev_err(&plat_dev->dev, "Unable to create sysfs entry: %s\n",
			dev_attr_irq.attr.name);

	platform_set_drvdata(plat_dev, rtc);

	return 0;
}
开发者ID:020gzh，项目名称:linux，代码行数:25，代码来源:rtc-test.c


示例15: cpcap_rtc_probe

static int cpcap_rtc_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct cpcap_rtc *rtc;
	int err;

	rtc = devm_kzalloc(dev, sizeof(*rtc), GFP_KERNEL);
	if (!rtc)
		return -ENOMEM;

	rtc->regmap = dev_get_regmap(dev->parent, NULL);
	if (!rtc->regmap)
		return -ENODEV;

	platform_set_drvdata(pdev, rtc);
	rtc->rtc_dev = devm_rtc_device_register(dev, "cpcap_rtc",
						&cpcap_rtc_ops, THIS_MODULE);

	if (IS_ERR(rtc->rtc_dev))
		return PTR_ERR(rtc->rtc_dev);

	err = cpcap_get_vendor(dev, rtc->regmap, &rtc->vendor);
	if (err)
		return err;

	rtc->alarm_irq = platform_get_irq(pdev, 0);
	err = devm_request_threaded_irq(dev, rtc->alarm_irq, NULL,
					cpcap_rtc_alarm_irq, IRQF_TRIGGER_NONE,
					"rtc_alarm", rtc);
	if (err) {
		dev_err(dev, "Could not request alarm irq: %d\n", err);
		return err;
	}
	disable_irq(rtc->alarm_irq);

	/* Stock Android uses the 1 Hz interrupt for "secure clock daemon",
	 * which is not supported by the mainline kernel. The mainline kernel
	 * does not use the irq at the moment, but we explicitly request and
	 * disable it, so that its masked and does not wake up the processor
	 * every second.
	 */
	rtc->update_irq = platform_get_irq(pdev, 1);
	err = devm_request_threaded_irq(dev, rtc->update_irq, NULL,
					cpcap_rtc_update_irq, IRQF_TRIGGER_NONE,
					"rtc_1hz", rtc);
	if (err) {
		dev_err(dev, "Could not request update irq: %d\n", err);
		return err;
	}
	disable_irq(rtc->update_irq);

	err = device_init_wakeup(dev, 1);
	if (err) {
		dev_err(dev, "wakeup initialization failed (%d)\n", err);
		/* ignore error and continue without wakeup support */
	}

	return 0;
}
开发者ID:AlexShiLucky，项目名称:linux，代码行数:59，代码来源:rtc-cpcap.c


示例16: max8997_rtc_probe

static int max8997_rtc_probe(struct platform_device *pdev)
{
	struct max8997_dev *max8997 = dev_get_drvdata(pdev->dev.parent);
	struct max8997_rtc_info *info;
	int ret, virq;

	info = devm_kzalloc(&pdev->dev, sizeof(struct max8997_rtc_info),
			GFP_KERNEL);
	if (!info)
		return -ENOMEM;

	mutex_init(&info->lock);
	info->dev = &pdev->dev;
	info->max8997 = max8997;
	info->rtc = max8997->rtc;

	platform_set_drvdata(pdev, info);

	ret = max8997_rtc_init_reg(info);

	if (ret < 0) {
		dev_err(&pdev->dev, "Failed to initialize RTC reg:%d\n", ret);
		return ret;
	}

	max8997_rtc_enable_wtsr(info, true);
	max8997_rtc_enable_smpl(info, true);

	device_init_wakeup(&pdev->dev, 1);

	info->rtc_dev = devm_rtc_device_register(&pdev->dev, "max8997-rtc",
					&max8997_rtc_ops, THIS_MODULE);

	if (IS_ERR(info->rtc_dev)) {
		ret = PTR_ERR(info->rtc_dev);
		dev_err(&pdev->dev, "Failed to register RTC device: %d\n", ret);
		return ret;
	}

	virq = irq_create_mapping(max8997->irq_domain, MAX8997_PMICIRQ_RTCA1);
	if (!virq) {
		dev_err(&pdev->dev, "Failed to create mapping alarm IRQ\n");
		ret = -ENXIO;
		goto err_out;
	}
	info->virq = virq;

	ret = devm_request_threaded_irq(&pdev->dev, virq, NULL,
				max8997_rtc_alarm_irq, 0,
				"rtc-alarm0", info);
	if (ret < 0)
		dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
			info->virq, ret);

err_out:
	return ret;
}
开发者ID:03199618，项目名称:linux，代码行数:57，代码来源:rtc-max8997.c


示例17: davinci_rtc_probe

static int __init davinci_rtc_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct davinci_rtc *davinci_rtc;
	struct resource *res;
	int ret = 0;

	davinci_rtc = devm_kzalloc(&pdev->dev, sizeof(struct davinci_rtc), GFP_KERNEL);
	if (!davinci_rtc)
		return -ENOMEM;

	davinci_rtc->irq = platform_get_irq(pdev, 0);
	if (davinci_rtc->irq < 0) {
		dev_err(dev, "no RTC irq\n");
		return davinci_rtc->irq;
	}

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	davinci_rtc->base = devm_ioremap_resource(dev, res);
	if (IS_ERR(davinci_rtc->base))
		return PTR_ERR(davinci_rtc->base);

	platform_set_drvdata(pdev, davinci_rtc);

	davinci_rtc->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
				    &davinci_rtc_ops, THIS_MODULE);
	if (IS_ERR(davinci_rtc->rtc)) {
		dev_err(dev, "unable to register RTC device, err %d\n",
				ret);
		return PTR_ERR(davinci_rtc->rtc);
	}

	rtcif_write(davinci_rtc, PRTCIF_INTFLG_RTCSS, PRTCIF_INTFLG);
	rtcif_write(davinci_rtc, 0, PRTCIF_INTEN);
	rtcss_write(davinci_rtc, 0, PRTCSS_RTC_INTC_EXTENA1);

	rtcss_write(davinci_rtc, 0, PRTCSS_RTC_CTRL);
	rtcss_write(davinci_rtc, 0, PRTCSS_RTC_CCTRL);

	ret = devm_request_irq(dev, davinci_rtc->irq, davinci_rtc_interrupt,
			  0, "davinci_rtc", davinci_rtc);
	if (ret < 0) {
		dev_err(dev, "unable to register davinci RTC interrupt\n");
		return ret;
	}

	/* Enable interrupts */
	rtcif_write(davinci_rtc, PRTCIF_INTEN_RTCSS, PRTCIF_INTEN);
	rtcss_write(davinci_rtc, PRTCSS_RTC_INTC_EXTENA1_MASK,
			    PRTCSS_RTC_INTC_EXTENA1);

	rtcss_write(davinci_rtc, PRTCSS_RTC_CCTRL_CAEN, PRTCSS_RTC_CCTRL);

	device_init_wakeup(&pdev->dev, 0);

	return 0;
}
开发者ID:AK101111，项目名称:linux，代码行数:57，代码来源:rtc-davinci.c


示例18: ds1742_rtc_probe

static int ds1742_rtc_probe(struct platform_device *pdev)
{
	struct rtc_device *rtc;
	struct resource *res;
	unsigned int cen, sec;
	struct rtc_plat_data *pdata;
	void __iomem *ioaddr;
	int ret = 0;

	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
	if (!pdata)
		return -ENOMEM;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	ioaddr = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(ioaddr))
		return PTR_ERR(ioaddr);

	pdata->ioaddr_nvram = ioaddr;
	pdata->size_nvram = resource_size(res) - RTC_SIZE;
	pdata->ioaddr_rtc = ioaddr + pdata->size_nvram;

	sysfs_bin_attr_init(&pdata->nvram_attr);
	pdata->nvram_attr.attr.name = "nvram";
	pdata->nvram_attr.attr.mode = S_IRUGO | S_IWUSR;
	pdata->nvram_attr.read = ds1742_nvram_read;
	pdata->nvram_attr.write = ds1742_nvram_write;
	pdata->nvram_attr.size = pdata->size_nvram;

	/* turn RTC on if it was not on */
	ioaddr = pdata->ioaddr_rtc;
	sec = readb(ioaddr + RTC_SECONDS);
	if (sec & RTC_STOP) {
		sec &= RTC_SECONDS_MASK;
		cen = readb(ioaddr + RTC_CENTURY) & RTC_CENTURY_MASK;
		writeb(RTC_WRITE, ioaddr + RTC_CONTROL);
		writeb(sec, ioaddr + RTC_SECONDS);
		writeb(cen & RTC_CENTURY_MASK, ioaddr + RTC_CONTROL);
	}
	if (!(readb(ioaddr + RTC_DAY) & RTC_BATT_FLAG))
		dev_warn(&pdev->dev, "voltage-low detected.\n");

	pdata->last_jiffies = jiffies;
	platform_set_drvdata(pdev, pdata);
	rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
				  &ds1742_rtc_ops, THIS_MODULE);
	if (IS_ERR(rtc))
		return PTR_ERR(rtc);

	ret = sysfs_create_bin_file(&pdev->dev.kobj, &pdata->nvram_attr);
	if (ret)
		dev_err(&pdev->dev, "Unable to create sysfs entry: %s\n",
			pdata->nvram_attr.attr.name);

	return 0;
}
开发者ID:020gzh，项目名称:linux，代码行数:56，代码来源:rtc-ds1742.c


示例19: jz4740_rtc_probe

static int jz4740_rtc_probe(struct platform_device *pdev)
{
	int ret;
	struct jz4740_rtc *rtc;
	uint32_t scratchpad;
	struct resource *mem;

	rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
	if (!rtc)
		return -ENOMEM;

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

	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	rtc->base = devm_ioremap_resource(&pdev->dev, mem);
	if (IS_ERR(rtc->base))
		return PTR_ERR(rtc->base);

	spin_lock_init(&rtc->lock);

	platform_set_drvdata(pdev, rtc);

	device_init_wakeup(&pdev->dev, 1);

	rtc->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
					&jz4740_rtc_ops, THIS_MODULE);
	if (IS_ERR(rtc->rtc)) {
		ret = PTR_ERR(rtc->rtc);
		dev_err(&pdev->dev, "Failed to register rtc device: %d\n", ret);
		return ret;
	}

	ret = devm_request_irq(&pdev->dev, rtc->irq, jz4740_rtc_irq, 0,
				pdev->name, rtc);
	if (ret) {
		dev_err(&pdev->dev, "Failed to request rtc irq: %d\n", ret);
		return ret;
	}

	scratchpad = jz4740_rtc_reg_read(rtc, JZ_REG_RTC_SCRATCHPAD);
	if (scratchpad != 0x12345678) {
		ret = jz4740_rtc_reg_write(rtc, JZ_REG_RTC_SCRATCHPAD, 0x12345678);
		ret = jz4740_rtc_reg_write(rtc, JZ_REG_RTC_SEC, 0);
		if (ret) {
			dev_err(&pdev->dev, "Could not write write to RTC registers\n");
			return ret;
		}
	}

	return 0;
}
开发者ID:3null，项目名称:linux，代码行数:55，代码来源:rtc-jz4740.c


示例20: rc5t583_rtc_probe

static int rc5t583_rtc_probe(struct platform_device *pdev)
{
	struct rc5t583 *rc5t583 = dev_get_drvdata(pdev->dev.parent);
	struct rc5t583_rtc *ricoh_rtc;
	struct rc5t583_platform_data *pmic_plat_data;
	int ret;
	int irq;

	ricoh_rtc = devm_kzalloc(&pdev->dev, sizeof(struct rc5t583_rtc),
			GFP_KERNEL);
	if (!ricoh_rtc)
		return -ENOMEM;

	platform_set_drvdata(pdev, ricoh_rtc);

	/* Clear pending interrupts */
	ret = regmap_write(rc5t583->regmap, RC5T583_RTC_CTL2, 0);
	if (ret < 0)
		return ret;

	/* clear RTC Adjust register */
	ret = regmap_write(rc5t583->regmap, RC5T583_RTC_ADJ, 0);
	if (ret < 0) {
		dev_err(&pdev->dev, "unable to program rtc_adjust reg\n");
		return -EBUSY;
	}

	pmic_plat_data = dev_get_platdata(rc5t583->dev);
	irq = pmic_plat_data->irq_base;
	if (irq <= 0) {
		dev_warn(&pdev->dev, "Wake up is not possible as irq = %d\n",
			irq);
		return ret;
	}

	irq += RC5T583_IRQ_YALE;
	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
		rc5t583_rtc_interrupt, IRQF_TRIGGER_LOW,
		"rtc-rc5t583", &pdev->dev);
	if (ret < 0) {
		dev_err(&pdev->dev, "IRQ is not free.\n");
		return ret;
	}
	device_init_wakeup(&pdev->dev, 1);

	ricoh_rtc->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
		&rc5t583_rtc_ops, THIS_MODULE);
	if (IS_ERR(ricoh_rtc->rtc)) {
		ret = PTR_ERR(ricoh_rtc->rtc);
		dev_err(&pdev->dev, "RTC device register: err %d\n", ret);
		return ret;
	}

	return 0;
}
开发者ID:AD5GB，项目名称:kernel_n5_3.10-experimental，代码行数:55，代码来源:rtc-rc5t583.c



注：本文中的devm_rtc_device_register函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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