diff options
Diffstat (limited to 'drivers/rtc/rtc-goldfish.c')
| -rw-r--r-- | drivers/rtc/rtc-goldfish.c | 50 |
1 files changed, 16 insertions, 34 deletions
diff --git a/drivers/rtc/rtc-goldfish.c b/drivers/rtc/rtc-goldfish.c index a1c44d0c8557..1a3420ee6a4d 100644 --- a/drivers/rtc/rtc-goldfish.c +++ b/drivers/rtc/rtc-goldfish.c @@ -1,23 +1,15 @@ +// SPDX-License-Identifier: GPL-2.0 /* drivers/rtc/rtc-goldfish.c * * Copyright (C) 2007 Google, Inc. * Copyright (C) 2017 Imagination Technologies Ltd. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ +#include <linux/io.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/rtc.h> -#include <linux/io.h> #define TIMER_TIME_LOW 0x00 /* get low bits of current time */ /* and update TIMER_TIME_HIGH */ @@ -56,7 +48,7 @@ static int goldfish_rtc_read_alarm(struct device *dev, do_div(rtc_alarm, NSEC_PER_SEC); memset(alrm, 0, sizeof(struct rtc_wkalrm)); - rtc_time_to_tm(rtc_alarm, &alrm->time); + rtc_time64_to_tm(rtc_alarm, &alrm->time); if (readl(base + TIMER_ALARM_STATUS)) alrm->enabled = 1; @@ -70,21 +62,15 @@ static int goldfish_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) { struct goldfish_rtc *rtcdrv; - unsigned long rtc_alarm; u64 rtc_alarm64; u64 rtc_status_reg; void __iomem *base; - int ret = 0; rtcdrv = dev_get_drvdata(dev); base = rtcdrv->base; if (alrm->enabled) { - ret = rtc_tm_to_time(&alrm->time, &rtc_alarm); - if (ret != 0) - return ret; - - rtc_alarm64 = rtc_alarm * NSEC_PER_SEC; + rtc_alarm64 = rtc_tm_to_time64(&alrm->time) * NSEC_PER_SEC; writel((rtc_alarm64 >> 32), base + TIMER_ALARM_HIGH); writel(rtc_alarm64, base + TIMER_ALARM_LOW); } else { @@ -98,7 +84,7 @@ static int goldfish_rtc_set_alarm(struct device *dev, writel(1, base + TIMER_CLEAR_ALARM); } - return ret; + return 0; } static int goldfish_rtc_alarm_irq_enable(struct device *dev, @@ -147,7 +133,7 @@ static int goldfish_rtc_read_time(struct device *dev, struct rtc_time *tm) do_div(time, NSEC_PER_SEC); - rtc_time_to_tm(time, tm); + rtc_time64_to_tm(time, tm); return 0; } @@ -156,21 +142,16 @@ static int goldfish_rtc_set_time(struct device *dev, struct rtc_time *tm) { struct goldfish_rtc *rtcdrv; void __iomem *base; - unsigned long now; u64 now64; - int ret; rtcdrv = dev_get_drvdata(dev); base = rtcdrv->base; - ret = rtc_tm_to_time(tm, &now); - if (ret == 0) { - now64 = now * NSEC_PER_SEC; - writel((now64 >> 32), base + TIMER_TIME_HIGH); - writel(now64, base + TIMER_TIME_LOW); - } + now64 = rtc_tm_to_time64(tm) * NSEC_PER_SEC; + writel((now64 >> 32), base + TIMER_TIME_HIGH); + writel(now64, base + TIMER_TIME_LOW); - return ret; + return 0; } static const struct rtc_class_ops goldfish_rtc_ops = { @@ -205,19 +186,20 @@ static int goldfish_rtc_probe(struct platform_device *pdev) if (rtcdrv->irq < 0) return -ENODEV; - rtcdrv->rtc = devm_rtc_device_register(&pdev->dev, pdev->name, - &goldfish_rtc_ops, - THIS_MODULE); + rtcdrv->rtc = devm_rtc_allocate_device(&pdev->dev); if (IS_ERR(rtcdrv->rtc)) return PTR_ERR(rtcdrv->rtc); + rtcdrv->rtc->ops = &goldfish_rtc_ops; + rtcdrv->rtc->range_max = U64_MAX / NSEC_PER_SEC; + err = devm_request_irq(&pdev->dev, rtcdrv->irq, goldfish_rtc_interrupt, 0, pdev->name, rtcdrv); if (err) return err; - return 0; + return rtc_register_device(rtcdrv->rtc); } static const struct of_device_id goldfish_rtc_of_match[] = { |