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| author | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2020-03-30 22:12:25 +0200 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2020-04-02 18:47:29 +0200 |
| commit | 8ae79be79b1d31789c2681cf833fae194b0a3851 (patch) | |
| tree | 97f27b6e4591d0bf3fc7917b891b95547ad9d96a /drivers/rtc | |
| parent | 99b7ac9c68fa827264ed8b3f24eace96ab0c67b7 (diff) | |
| download | linux-8ae79be79b1d31789c2681cf833fae194b0a3851.tar.gz linux-8ae79be79b1d31789c2681cf833fae194b0a3851.tar.bz2 linux-8ae79be79b1d31789c2681cf833fae194b0a3851.zip | |
rtc: sun6i: let the core handle rtc range
Let the rtc core check the date/time against the RTC range.
Tested-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Link: https://lore.kernel.org/r/20200330201226.860967-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-sun6i.c | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c index 7fee729d59db..e2b8b150bcb4 100644 --- a/drivers/rtc/rtc-sun6i.c +++ b/drivers/rtc/rtc-sun6i.c @@ -108,7 +108,6 @@ * driver, even though it is somewhat limited. */ #define SUN6I_YEAR_MIN 1970 -#define SUN6I_YEAR_MAX 2033 #define SUN6I_YEAR_OFF (SUN6I_YEAR_MIN - 1900) /* @@ -569,14 +568,6 @@ static int sun6i_rtc_settime(struct device *dev, struct rtc_time *rtc_tm) struct sun6i_rtc_dev *chip = dev_get_drvdata(dev); u32 date = 0; u32 time = 0; - int year; - - year = rtc_tm->tm_year + 1900; - if (year < SUN6I_YEAR_MIN || year > SUN6I_YEAR_MAX) { - dev_err(dev, "rtc only supports year in range %d - %d\n", - SUN6I_YEAR_MIN, SUN6I_YEAR_MAX); - return -EINVAL; - } rtc_tm->tm_year -= SUN6I_YEAR_OFF; rtc_tm->tm_mon += 1; @@ -585,7 +576,7 @@ static int sun6i_rtc_settime(struct device *dev, struct rtc_time *rtc_tm) SUN6I_DATE_SET_MON_VALUE(rtc_tm->tm_mon) | SUN6I_DATE_SET_YEAR_VALUE(rtc_tm->tm_year); - if (is_leap_year(year)) + if (is_leap_year(rtc_tm->tm_year + SUN6I_YEAR_MIN)) date |= SUN6I_LEAP_SET_VALUE(1); time = SUN6I_TIME_SET_SEC_VALUE(rtc_tm->tm_sec) | @@ -726,12 +717,16 @@ static int sun6i_rtc_probe(struct platform_device *pdev) device_init_wakeup(&pdev->dev, 1); - chip->rtc = devm_rtc_device_register(&pdev->dev, "rtc-sun6i", - &sun6i_rtc_ops, THIS_MODULE); - if (IS_ERR(chip->rtc)) { - dev_err(&pdev->dev, "unable to register device\n"); + chip->rtc = devm_rtc_allocate_device(&pdev->dev); + if (IS_ERR(chip->rtc)) return PTR_ERR(chip->rtc); - } + + chip->rtc->ops = &sun6i_rtc_ops; + chip->rtc->range_max = 2019686399LL; /* 2033-12-31 23:59:59 */ + + ret = rtc_register_device(chip->rtc); + if (ret) + return ret; dev_info(&pdev->dev, "RTC enabled\n"); |