From 3d8cb25635de0ef3cf3146819ddf5c92acb34bb0 Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Tue, 6 May 2014 18:45:45 +0200 Subject: [PATCH] rtc: hym8563: 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 Cc: stable@vger.kernel.org --- drivers/rtc/rtc-hym8563.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/rtc/rtc-hym8563.c b/drivers/rtc/rtc-hym8563.c index bd628a6..e5f13c4 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 -- 1.9.0