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authorHeiko Stuebner <heiko@sntech.de>2014-05-09 15:36:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-05-11 17:55:48 +0900
commit282cba6b00a95f0277ed71551e3f6b0477e8836b (patch)
tree4d4ad3df1afb3348ecf07e297d8665a0361a39a9 /drivers/rtc/rtc-hym8563.c
parentafcf0a2d9289bbe50aab362e6fb2798038815973 (diff)
drivers/rtc/rtc-hym8563.c: set uie_unsupported
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> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc/rtc-hym8563.c')
-rw-r--r--drivers/rtc/rtc-hym8563.c3
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