linux-kernel - [PATCH] rtc: hym8563: return clock rate even when clock is disabled

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Date:	Fri, 06 Mar 2015 10:52:39 +0100
From:	Heiko Stuebner <heiko@...ech.de>
To:	akpm@...ux-foundation.org, Alessandro Zummo <a.zummo@...ertech.it>
Cc:	rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org
Subject: [PATCH] rtc: hym8563: return clock rate even when clock is disabled

When the clock is disabled, do not return a rate of 0 but instead return
the rate the clock will be running at after it gets enabled. This prevents
problems when the core clock code is trying to determine a suitable rate,
while the clock is still off.

Signed-off-by: Heiko Stuebner <heiko@...ech.de>
---
 drivers/rtc/rtc-hym8563.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-hym8563.c b/drivers/rtc/rtc-hym8563.c
index b936bb4..d4a6561 100644
--- a/drivers/rtc/rtc-hym8563.c
+++ b/drivers/rtc/rtc-hym8563.c
@@ -309,7 +309,7 @@ static unsigned long hym8563_clkout_recalc_rate(struct clk_hw *hw,
 	struct i2c_client *client = hym8563->client;
 	int ret = i2c_smbus_read_byte_data(client, HYM8563_CLKOUT);
 
-	if (ret < 0 || ret & HYM8563_CLKOUT_DISABLE)
+	if (ret < 0)
 		return 0;
 
 	ret &= HYM8563_CLKOUT_MASK;
-- 
2.1.4


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