linux-kernel - [PATCH 5.5 311/367] mfd: bd70528: Fix hour register mask

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Message-Id: <20200210122452.013434780@linuxfoundation.org>
Date:   Mon, 10 Feb 2020 04:33:44 -0800
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Lee Jones <lee.jones@...aro.org>
Subject: [PATCH 5.5 311/367] mfd: bd70528: Fix hour register mask

From: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>

commit 6c883472e1c11cb05561b6dd0c28bb037c2bf2de upstream.

When RTC is used in 24H mode (and it is by this driver) the maximum
hour value is 24 in BCD. This occupies bits [5:0] - which means
correct mask for HOUR register is 0x3f not 0x1f. Fix the mask

Fixes: 32a4a4ebf768 ("rtc: bd70528: Initial support for ROHM bd70528 RTC")

Signed-off-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
Acked-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 include/linux/mfd/rohm-bd70528.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/linux/mfd/rohm-bd70528.h
+++ b/include/linux/mfd/rohm-bd70528.h
@@ -317,7 +317,7 @@ enum {
 #define BD70528_MASK_RTC_MINUTE		0x7f
 #define BD70528_MASK_RTC_HOUR_24H	0x80
 #define BD70528_MASK_RTC_HOUR_PM	0x20
-#define BD70528_MASK_RTC_HOUR		0x1f
+#define BD70528_MASK_RTC_HOUR		0x3f
 #define BD70528_MASK_RTC_DAY		0x3f
 #define BD70528_MASK_RTC_WEEK		0x07
 #define BD70528_MASK_RTC_MONTH		0x1f