diff options
| author | Hugo Villeneuve <hvilleneuve@dimonoff.com> | 2023-06-22 10:57:59 -0400 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2023-07-27 22:54:53 +0200 |
| commit | e9a5a1b418dd9a82d1de71e82ec64ad195b5300a (patch) | |
| tree | 88541d289ba1c04decff826d57980355c598c04b /drivers/rtc/rtc-pcf2127.c | |
| parent | 081602a1d85b1fd7ad9ea298cffb4e5ad5296952 (diff) | |
| download | linux-e9a5a1b418dd9a82d1de71e82ec64ad195b5300a.tar.gz | |
rtc: pcf2127: add UIE support for PCF2131
The PCF2127/29 do NOT support alarms with a 1 second resolution, but
the PCF2131 does.
Signed-off-by: Hugo Villeneuve <hvilleneuve@dimonoff.com>
Link: https://lore.kernel.org/r/20230622145800.2442116-17-hugo@hugovil.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc/rtc-pcf2127.c')
| -rw-r--r-- | drivers/rtc/rtc-pcf2127.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c index 3acab5a19aba5..78141bb06ab0b 100644 --- a/drivers/rtc/rtc-pcf2127.c +++ b/drivers/rtc/rtc-pcf2127.c @@ -1128,8 +1128,16 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, pcf2127->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; pcf2127->rtc->range_max = RTC_TIMESTAMP_END_2099; pcf2127->rtc->set_start_time = true; /* Sets actual start to 1970 */ - set_bit(RTC_FEATURE_ALARM_RES_2S, pcf2127->rtc->features); - clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, pcf2127->rtc->features); + + /* + * PCF2127/29 do not work correctly when setting alarms at 1s intervals. + * PCF2131 is ok. + */ + if (pcf2127->cfg->type == PCF2127 || pcf2127->cfg->type == PCF2129) { + set_bit(RTC_FEATURE_ALARM_RES_2S, pcf2127->rtc->features); + clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, pcf2127->rtc->features); + } + clear_bit(RTC_FEATURE_ALARM, pcf2127->rtc->features); if (alarm_irq > 0) { |