diff options
Diffstat (limited to 'drivers/rtc/rtc-imxdi.c')
| -rw-r--r-- | drivers/rtc/rtc-imxdi.c | 50 |
1 files changed, 17 insertions, 33 deletions
diff --git a/drivers/rtc/rtc-imxdi.c b/drivers/rtc/rtc-imxdi.c index 80931114c899..3f3d652a0b0f 100644 --- a/drivers/rtc/rtc-imxdi.c +++ b/drivers/rtc/rtc-imxdi.c @@ -1,20 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved. * Copyright 2010 Orex Computed Radiography */ /* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ - -/* based on rtc-mc13892.c */ - -/* * This driver uses the 47-bit 32 kHz counter in the Freescale DryIce block * to implement a Linux RTC. Times and alarms are truncated to seconds. * Since the RTC framework performs API locking via rtc->ops_lock the @@ -552,7 +542,7 @@ static int dryice_rtc_read_time(struct device *dev, struct rtc_time *tm) unsigned long now; now = readl(imxdi->ioaddr + DTCMR); - rtc_time_to_tm(now, tm); + rtc_time64_to_tm(now, tm); return 0; } @@ -561,7 +551,7 @@ static int dryice_rtc_read_time(struct device *dev, struct rtc_time *tm) * set the seconds portion of dryice time counter and clear the * fractional part. */ -static int dryice_rtc_set_mmss(struct device *dev, unsigned long secs) +static int dryice_rtc_set_time(struct device *dev, struct rtc_time *tm) { struct imxdi_dev *imxdi = dev_get_drvdata(dev); u32 dcr, dsr; @@ -588,7 +578,7 @@ static int dryice_rtc_set_mmss(struct device *dev, unsigned long secs) if (rc != 0) return rc; - rc = di_write_wait(imxdi, secs, DTCMR); + rc = di_write_wait(imxdi, rtc_tm_to_time64(tm), DTCMR); if (rc != 0) return rc; @@ -618,7 +608,7 @@ static int dryice_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm) u32 dcamr; dcamr = readl(imxdi->ioaddr + DCAMR); - rtc_time_to_tm(dcamr, &alarm->time); + rtc_time64_to_tm(dcamr, &alarm->time); /* alarm is enabled if the interrupt is enabled */ alarm->enabled = (readl(imxdi->ioaddr + DIER) & DIER_CAIE) != 0; @@ -640,21 +630,10 @@ static int dryice_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm) static int dryice_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm) { struct imxdi_dev *imxdi = dev_get_drvdata(dev); - unsigned long now; - unsigned long alarm_time; int rc; - rc = rtc_tm_to_time(&alarm->time, &alarm_time); - if (rc) - return rc; - - /* don't allow setting alarm in the past */ - now = readl(imxdi->ioaddr + DTCMR); - if (alarm_time < now) - return -EINVAL; - /* write the new alarm time */ - rc = di_write_wait(imxdi, (u32)alarm_time, DCAMR); + rc = di_write_wait(imxdi, rtc_tm_to_time64(&alarm->time), DCAMR); if (rc) return rc; @@ -668,7 +647,7 @@ static int dryice_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm) static const struct rtc_class_ops dryice_rtc_ops = { .read_time = dryice_rtc_read_time, - .set_mmss = dryice_rtc_set_mmss, + .set_time = dryice_rtc_set_time, .alarm_irq_enable = dryice_rtc_alarm_irq_enable, .read_alarm = dryice_rtc_read_alarm, .set_alarm = dryice_rtc_set_alarm, @@ -796,6 +775,10 @@ static int __init dryice_rtc_probe(struct platform_device *pdev) mutex_init(&imxdi->write_mutex); + imxdi->rtc = devm_rtc_allocate_device(&pdev->dev); + if (IS_ERR(imxdi->rtc)) + return PTR_ERR(imxdi->rtc); + imxdi->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(imxdi->clk)) return PTR_ERR(imxdi->clk); @@ -829,12 +812,13 @@ static int __init dryice_rtc_probe(struct platform_device *pdev) } platform_set_drvdata(pdev, imxdi); - imxdi->rtc = devm_rtc_device_register(&pdev->dev, pdev->name, - &dryice_rtc_ops, THIS_MODULE); - if (IS_ERR(imxdi->rtc)) { - rc = PTR_ERR(imxdi->rtc); + + imxdi->rtc->ops = &dryice_rtc_ops; + imxdi->rtc->range_max = U32_MAX; + + rc = rtc_register_device(imxdi->rtc); + if (rc) goto err; - } return 0; |