[lkml]   [2020]   [Jan]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[PATCH] mfd: bd70528: Fix hour register mask
When RTC is used in 24H mode (and it is by this driver) the maximum
hour value is 24 in BCD. This occupies bits [5:0] - which means
correct mask for HOUR register is 0x3f not 0x1f. Fix the mask

Fixes: 32a4a4ebf768 ("rtc: bd70528: Initial support for ROHM bd70528 RTC")
Signed-off-by: Matti Vaittinen <>
Acked-by: Alexandre Belloni <>

I just noticed this was never applied. I'd like to get this in as
we currently have bd70528 RTC not working in few exiting releases.
(Or it works as long as time is not set at the evening :/)

I think this once was in RTC tree but was dropped as Lee mentioned this
belongs to MFD. Thus I dared to add the Alexandre's acked-by - please
let me know if this is not Ok.

Lee, can you please pull this in so that we get the fix
in-tree? I guess the fixes tag helps this to be included in some
existing branches.

include/linux/mfd/rohm-bd70528.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/mfd/rohm-bd70528.h b/include/linux/mfd/rohm-bd70528.h
index 1013e60c5b25..b0109ee6dae2 100644
--- a/include/linux/mfd/rohm-bd70528.h
+++ b/include/linux/mfd/rohm-bd70528.h
@@ -317,7 +317,7 @@ enum {
#define BD70528_MASK_RTC_MINUTE 0x7f
#define BD70528_MASK_RTC_HOUR_24H 0x80
#define BD70528_MASK_RTC_HOUR_PM 0x20
-#define BD70528_MASK_RTC_HOUR 0x1f
+#define BD70528_MASK_RTC_HOUR 0x3f
#define BD70528_MASK_RTC_DAY 0x3f
#define BD70528_MASK_RTC_WEEK 0x07
#define BD70528_MASK_RTC_MONTH 0x1f

Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]

 \ /
  Last update: 2020-01-15 09:30    [W:0.039 / U:0.580 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site