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authorAlexandre Belloni <alexandre.belloni@bootlin.com>2021-08-04 13:41:32 +0300
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2021-08-06 11:31:59 +0300
commitfffd603ae9f6ee1da47fa4ae4c70c324323bc201 (patch)
treee06dcb2c360aeee9e80887920323379d63ac6f1f /drivers/rtc
parent308247d20464a684f335001f2f835240e67f9126 (diff)
downloadlinux-fffd603ae9f6ee1da47fa4ae4c70c324323bc201.tar.xz
rtc: s5m: set range
The S5M8763X type seems to handles dates from year 0000 to 9999, there is no info on leap year handling after 2099. The other models handles dates from 2000 to 2099. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210804104133.5158-4-alexandre.belloni@bootlin.com
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-s5m.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index 87df797758fc..fb9c6b709e13 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -204,15 +204,9 @@ static int s5m8767_tm_to_data(struct rtc_time *tm, u8 *data)
data[RTC_WEEKDAY] = 1 << tm->tm_wday;
data[RTC_DATE] = tm->tm_mday;
data[RTC_MONTH] = tm->tm_mon + 1;
- data[RTC_YEAR1] = tm->tm_year > 100 ? (tm->tm_year - 100) : 0;
+ data[RTC_YEAR1] = tm->tm_year - 100;
- if (tm->tm_year < 100) {
- pr_err("RTC cannot handle the year %d\n",
- 1900 + tm->tm_year);
- return -EINVAL;
- } else {
- return 0;
- }
+ return 0;
}
/*
@@ -792,6 +786,14 @@ static int s5m_rtc_probe(struct platform_device *pdev)
info->rtc_dev->ops = &s5m_rtc_ops;
+ if (info->device_type == S5M8763X) {
+ info->rtc_dev->range_min = RTC_TIMESTAMP_BEGIN_0000;
+ info->rtc_dev->range_max = RTC_TIMESTAMP_END_9999;
+ } else {
+ info->rtc_dev->range_min = RTC_TIMESTAMP_BEGIN_2000;
+ info->rtc_dev->range_max = RTC_TIMESTAMP_END_2099;
+ }
+
if (!info->irq) {
clear_bit(RTC_FEATURE_ALARM, info->rtc_dev->features);
} else {