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authorAlexandre Belloni <alexandre.belloni@bootlin.com>2019-03-20 12:30:10 +0100
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2019-04-04 10:07:09 +0200
commitbeee05dfbead2331a3183dee8ddcf10066278355 (patch)
treec5518e07249ecf6bdc0658e1bf32ce60fca98e5f /drivers/rtc/rtc-sh.c
parent1097998d27da39578542e79ff865b4d74e755cd0 (diff)
downloadlinux-beee05dfbead2331a3183dee8ddcf10066278355.tar.bz2
rtc: sh: set range
The SH RTC is a BCD RTC with some version having 4 digits for the year. The range for the RTCs with only 2 digits for the year was unfortunately shifted to handle 1999 to 2098. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc/rtc-sh.c')
-rw-r--r--drivers/rtc/rtc-sh.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index d9e67ca4b7b9..4cca54aa6e24 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -600,6 +600,14 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
rtc->rtc_dev->ops = &sh_rtc_ops;
rtc->rtc_dev->max_user_freq = 256;
+ if (rtc->capabilities & RTC_CAP_4_DIGIT_YEAR) {
+ rtc->rtc_dev->range_min = RTC_TIMESTAMP_BEGIN_1900;
+ rtc->rtc_dev->range_max = RTC_TIMESTAMP_END_9999;
+ } else {
+ rtc->rtc_dev->range_min = mktime64(1999, 1, 1, 0, 0, 0);
+ rtc->rtc_dev->range_max = mktime64(2098, 12, 31, 23, 59, 59);
+ }
+
ret = rtc_register_device(rtc->rtc_dev);
if (ret)
goto err_unmap;