Patchwork [211/222] drivers/rtc/rtc-vt8500.c: correct handling of CR_24H bitfield

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Submitter Herton Ronaldo Krzesinski
Date Jan. 16, 2013, 3:56 p.m.
Message ID <1358351822-7675-212-git-send-email-herton.krzesinski@canonical.com>
Download mbox | patch
Permalink /patch/212783/
State New
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Comments

Herton Ronaldo Krzesinski - Jan. 16, 2013, 3:56 p.m.
3.5.7.3 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tony Prisk <linux@prisktech.co.nz>

commit 532db570e5181abc8f4f7bfa6c77c69ec2240198 upstream.

Control register bitfield for 12H/24H mode is handled incorrectly.
Setting CR_24H actually enables 12H mode.  This patch renames the define
and changes the initialization code to correctly set 24H mode.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Cc: Edgar Toernig <froese@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
---
 drivers/rtc/rtc-vt8500.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Patch

diff --git a/drivers/rtc/rtc-vt8500.c b/drivers/rtc/rtc-vt8500.c
index 9e94fb1..5641ac5 100644
--- a/drivers/rtc/rtc-vt8500.c
+++ b/drivers/rtc/rtc-vt8500.c
@@ -69,7 +69,7 @@ 
 				| ALARM_SEC_BIT)
 
 #define VT8500_RTC_CR_ENABLE	(1 << 0)	/* Enable RTC */
-#define VT8500_RTC_CR_24H	(1 << 1)	/* 24h time format */
+#define VT8500_RTC_CR_12H	(1 << 1)	/* 12h time format */
 #define VT8500_RTC_CR_SM_ENABLE	(1 << 2)	/* Enable periodic irqs */
 #define VT8500_RTC_CR_SM_SEC	(1 << 3)	/* 0: 1Hz/60, 1: 1Hz */
 #define VT8500_RTC_CR_CALIB	(1 << 4)	/* Enable calibration */
@@ -248,7 +248,7 @@  static int __devinit vt8500_rtc_probe(struct platform_device *pdev)
 	}
 
 	/* Enable RTC and set it to 24-hour mode */
-	writel(VT8500_RTC_CR_ENABLE | VT8500_RTC_CR_24H,
+	writel(VT8500_RTC_CR_ENABLE,
 	       vt8500_rtc->regbase + VT8500_RTC_CR);
 
 	vt8500_rtc->rtc = rtc_device_register("vt8500-rtc", &pdev->dev,