diff options
Diffstat (limited to 'drivers/rtc/rtc-tps65910.c')
| -rw-r--r-- | drivers/rtc/rtc-tps65910.c | 61 |
1 files changed, 25 insertions, 36 deletions
diff --git a/drivers/rtc/rtc-tps65910.c b/drivers/rtc/rtc-tps65910.c index d0244d7979fc..284aa2f0392b 100644 --- a/drivers/rtc/rtc-tps65910.c +++ b/drivers/rtc/rtc-tps65910.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * rtc-tps65910.c -- TPS65910 Real Time Clock interface * @@ -7,11 +8,6 @@ * Based on original TI driver rtc-twl.c * Copyright (C) 2007 MontaVista Software, Inc * Author: Alexandre Rusev <source@mvista.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #include <linux/kernel.h> @@ -22,6 +18,7 @@ #include <linux/rtc.h> #include <linux/bcd.h> #include <linux/math64.h> +#include <linux/property.h> #include <linux/platform_device.h> #include <linux/interrupt.h> #include <linux/mfd/tps65910.h> @@ -147,7 +144,7 @@ static int tps65910_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm) struct tps65910 *tps = dev_get_drvdata(dev->parent); int ret; - ret = regmap_bulk_read(tps->regmap, TPS65910_SECONDS, alarm_data, + ret = regmap_bulk_read(tps->regmap, TPS65910_ALARM_SECONDS, alarm_data, NUM_TIME_REGS); if (ret < 0) { dev_err(dev, "rtc_read_alarm error %d\n", ret); @@ -380,6 +377,10 @@ static int tps65910_rtc_probe(struct platform_device *pdev) if (!tps_rtc) return -ENOMEM; + tps_rtc->rtc = devm_rtc_allocate_device(&pdev->dev); + if (IS_ERR(tps_rtc->rtc)) + return PTR_ERR(tps_rtc->rtc); + /* Clear pending interrupts */ ret = regmap_read(tps65910->regmap, TPS65910_RTC_STATUS, &rtc_reg); if (ret < 0) @@ -405,42 +406,30 @@ static int tps65910_rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, tps_rtc); irq = platform_get_irq(pdev, 0); - if (irq <= 0) { - dev_warn(&pdev->dev, "Wake up is not possible as irq = %d\n", - irq); - return -ENXIO; - } + if (irq < 0) + return irq; ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, tps65910_rtc_interrupt, IRQF_TRIGGER_LOW, dev_name(&pdev->dev), &pdev->dev); - if (ret < 0) { - dev_err(&pdev->dev, "IRQ is not free.\n"); - return ret; - } - tps_rtc->irq = irq; - device_set_wakeup_capable(&pdev->dev, 1); + if (ret < 0) + irq = -1; - tps_rtc->rtc = devm_rtc_device_register(&pdev->dev, pdev->name, - &tps65910_rtc_ops, THIS_MODULE); - if (IS_ERR(tps_rtc->rtc)) { - ret = PTR_ERR(tps_rtc->rtc); - dev_err(&pdev->dev, "RTC device register: err %d\n", ret); - return ret; + tps_rtc->irq = irq; + if (irq != -1) { + if (device_property_present(tps65910->dev, "wakeup-source")) + device_init_wakeup(&pdev->dev, true); + else + device_set_wakeup_capable(&pdev->dev, 1); + } else { + clear_bit(RTC_FEATURE_ALARM, tps_rtc->rtc->features); } - return 0; -} - -/* - * Disable tps65910 RTC interrupts. - * Sets status flag to free. - */ -static int tps65910_rtc_remove(struct platform_device *pdev) -{ - tps65910_rtc_alarm_irq_enable(&pdev->dev, 0); + tps_rtc->rtc->ops = &tps65910_rtc_ops; + tps_rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; + tps_rtc->rtc->range_max = RTC_TIMESTAMP_END_2099; - return 0; + return devm_rtc_register_device(tps_rtc->rtc); } #ifdef CONFIG_PM_SLEEP @@ -468,7 +457,6 @@ static SIMPLE_DEV_PM_OPS(tps65910_rtc_pm_ops, tps65910_rtc_suspend, static struct platform_driver tps65910_rtc_driver = { .probe = tps65910_rtc_probe, - .remove = tps65910_rtc_remove, .driver = { .name = "tps65910-rtc", .pm = &tps65910_rtc_pm_ops, @@ -476,6 +464,7 @@ static struct platform_driver tps65910_rtc_driver = { }; module_platform_driver(tps65910_rtc_driver); -MODULE_ALIAS("platform:rtc-tps65910"); +MODULE_ALIAS("platform:tps65910-rtc"); MODULE_AUTHOR("Venu Byravarasu <vbyravarasu@nvidia.com>"); +MODULE_DESCRIPTION("TI TPS65910 RTC driver"); MODULE_LICENSE("GPL"); |