diff options
Diffstat (limited to 'drivers/rtc/rtc-lpc32xx.c')
| -rw-r--r-- | drivers/rtc/rtc-lpc32xx.c | 59 |
1 files changed, 22 insertions, 37 deletions
diff --git a/drivers/rtc/rtc-lpc32xx.c b/drivers/rtc/rtc-lpc32xx.c index 910e600275b9..ac393230e592 100644 --- a/drivers/rtc/rtc-lpc32xx.c +++ b/drivers/rtc/rtc-lpc32xx.c @@ -1,14 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2010 NXP Semiconductors - * - * 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. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. */ #include <linux/kernel.h> @@ -47,8 +39,6 @@ #define LPC32XX_RTC_KEY_ONSW_LOADVAL 0xB5C13F27 -#define RTC_NAME "rtc-lpc32xx" - #define rtc_readl(dev, reg) \ __raw_readl((dev)->rtc_base + (reg)) #define rtc_writel(dev, reg, val) \ @@ -68,14 +58,15 @@ static int lpc32xx_rtc_read_time(struct device *dev, struct rtc_time *time) struct lpc32xx_rtc *rtc = dev_get_drvdata(dev); elapsed_sec = rtc_readl(rtc, LPC32XX_RTC_UCOUNT); - rtc_time_to_tm(elapsed_sec, time); + rtc_time64_to_tm(elapsed_sec, time); return 0; } -static int lpc32xx_rtc_set_mmss(struct device *dev, unsigned long secs) +static int lpc32xx_rtc_set_time(struct device *dev, struct rtc_time *time) { struct lpc32xx_rtc *rtc = dev_get_drvdata(dev); + u32 secs = rtc_tm_to_time64(time); u32 tmp; spin_lock_irq(&rtc->lock); @@ -97,7 +88,7 @@ static int lpc32xx_rtc_read_alarm(struct device *dev, { struct lpc32xx_rtc *rtc = dev_get_drvdata(dev); - rtc_time_to_tm(rtc_readl(rtc, LPC32XX_RTC_MATCH0), &wkalrm->time); + rtc_time64_to_tm(rtc_readl(rtc, LPC32XX_RTC_MATCH0), &wkalrm->time); wkalrm->enabled = rtc->alarm_enabled; wkalrm->pending = !!(rtc_readl(rtc, LPC32XX_RTC_INTSTAT) & LPC32XX_RTC_INTSTAT_MATCH0); @@ -111,13 +102,8 @@ static int lpc32xx_rtc_set_alarm(struct device *dev, struct lpc32xx_rtc *rtc = dev_get_drvdata(dev); unsigned long alarmsecs; u32 tmp; - int ret; - ret = rtc_tm_to_time(&wkalrm->time, &alarmsecs); - if (ret < 0) { - dev_warn(dev, "Failed to convert time: %d\n", ret); - return ret; - } + alarmsecs = rtc_tm_to_time64(&wkalrm->time); spin_lock_irq(&rtc->lock); @@ -191,7 +177,7 @@ static irqreturn_t lpc32xx_rtc_alarm_interrupt(int irq, void *dev) static const struct rtc_class_ops lpc32xx_rtc_ops = { .read_time = lpc32xx_rtc_read_time, - .set_mmss = lpc32xx_rtc_set_mmss, + .set_time = lpc32xx_rtc_set_time, .read_alarm = lpc32xx_rtc_read_alarm, .set_alarm = lpc32xx_rtc_set_alarm, .alarm_irq_enable = lpc32xx_rtc_alarm_irq_enable, @@ -201,21 +187,13 @@ static int lpc32xx_rtc_probe(struct platform_device *pdev) { struct resource *res; struct lpc32xx_rtc *rtc; - int rtcirq; + int err; u32 tmp; - rtcirq = platform_get_irq(pdev, 0); - if (rtcirq < 0) { - dev_warn(&pdev->dev, "Can't get interrupt resource\n"); - rtcirq = -1; - } - rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL); if (unlikely(!rtc)) return -ENOMEM; - rtc->irq = rtcirq; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); rtc->rtc_base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(rtc->rtc_base)) @@ -256,18 +234,25 @@ static int lpc32xx_rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, rtc); - rtc->rtc = devm_rtc_device_register(&pdev->dev, RTC_NAME, - &lpc32xx_rtc_ops, THIS_MODULE); - if (IS_ERR(rtc->rtc)) { - dev_err(&pdev->dev, "Can't get RTC\n"); + rtc->rtc = devm_rtc_allocate_device(&pdev->dev); + if (IS_ERR(rtc->rtc)) return PTR_ERR(rtc->rtc); - } + + rtc->rtc->ops = &lpc32xx_rtc_ops; + rtc->rtc->range_max = U32_MAX; + + err = rtc_register_device(rtc->rtc); + if (err) + return err; /* * IRQ is enabled after device registration in case alarm IRQ * is pending upon suspend exit. */ - if (rtc->irq >= 0) { + rtc->irq = platform_get_irq(pdev, 0); + if (rtc->irq < 0) { + dev_warn(&pdev->dev, "Can't get interrupt resource\n"); + } else { if (devm_request_irq(&pdev->dev, rtc->irq, lpc32xx_rtc_alarm_interrupt, 0, pdev->name, rtc) < 0) { @@ -374,7 +359,7 @@ static struct platform_driver lpc32xx_rtc_driver = { .probe = lpc32xx_rtc_probe, .remove = lpc32xx_rtc_remove, .driver = { - .name = RTC_NAME, + .name = "rtc-lpc32xx", .pm = LPC32XX_RTC_PM_OPS, .of_match_table = of_match_ptr(lpc32xx_rtc_match), }, |