diff options
| author | Heiko Stuebner <heiko@sntech.de> | 2014-05-09 15:36:57 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-06-07 10:28:10 -0700 |
| commit | 57a0cd815351438f7ed67a6923b33eb6cdde4986 (patch) | |
| tree | 245247b5279a2144828ee5fe56fa1869125a172f /drivers/rtc | |
| parent | 2bcd64e5aaa27654473ba5fbda7e6e057aa75cc8 (diff) | |
drivers/rtc/rtc-hym8563.c: set uie_unsupported
commit 282cba6b00a95f0277ed71551e3f6b0477e8836b upstream.
The alarm of the hym8563 only supports a minute accuracy, while the uie
wants an alarm one second in the future. Therefore things like the
select() syscall will fail with a timeout, because the next alarm will
happen in a worst case of 60 seconds.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-hym8563.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-hym8563.c b/drivers/rtc/rtc-hym8563.c index bd628a6f981d..e5f13c4310fe 100644 --- a/drivers/rtc/rtc-hym8563.c +++ b/drivers/rtc/rtc-hym8563.c @@ -569,6 +569,9 @@ static int hym8563_probe(struct i2c_client *client, if (IS_ERR(hym8563->rtc)) return PTR_ERR(hym8563->rtc); + /* the hym8563 alarm only supports a minute accuracy */ + hym8563->rtc->uie_unsupported = 1; + #ifdef CONFIG_COMMON_CLK hym8563_clkout_register_clk(hym8563); #endif |