From: Emil Bartczak <emilbart@gmail.com>
To: a.zummo@towertech.it
Cc: alexandre.belloni@free-electrons.com, rtc-linux@googlegroups.com,
linux-kernel@vger.kernel.org, Emil Bartczak <emilbart@gmail.com>
Subject: [PATCH v2 1/2] rtc: mcp795: Add support for weekday.
Date: Sun, 25 Dec 2016 23:07:42 +0100 [thread overview]
Message-ID: <1482703663-9115-2-git-send-email-emilbart@gmail.com> (raw)
In-Reply-To: <1482703663-9115-1-git-send-email-emilbart@gmail.com>
This patch adds support for saving/loading weekday value from the chip.
Signed-off-by: Emil Bartczak <emilbart@gmail.com>
---
drivers/rtc/rtc-mcp795.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/rtc/rtc-mcp795.c b/drivers/rtc/rtc-mcp795.c
index ce75e42..8107fc0 100644
--- a/drivers/rtc/rtc-mcp795.c
+++ b/drivers/rtc/rtc-mcp795.c
@@ -170,6 +170,7 @@ static int mcp795_set_time(struct device *dev, struct rtc_time *tim)
data[0] = (data[0] & 0x80) | bin2bcd(tim->tm_sec);
data[1] = (data[1] & 0x80) | bin2bcd(tim->tm_min);
data[2] = bin2bcd(tim->tm_hour);
+ data[3] = (data[3] & 0xF8) | bin2bcd(tim->tm_wday + 1);
data[4] = bin2bcd(tim->tm_mday);
data[5] = (data[5] & MCP795_LP_BIT) | bin2bcd(tim->tm_mon + 1);
@@ -198,9 +199,9 @@ static int mcp795_set_time(struct device *dev, struct rtc_time *tim)
if (ret)
return ret;
- dev_dbg(dev, "Set mcp795: %04d-%02d-%02d %02d:%02d:%02d\n",
+ dev_dbg(dev, "Set mcp795: %04d-%02d-%02d(%d) %02d:%02d:%02d\n",
tim->tm_year + 1900, tim->tm_mon, tim->tm_mday,
- tim->tm_hour, tim->tm_min, tim->tm_sec);
+ tim->tm_wday, tim->tm_hour, tim->tm_min, tim->tm_sec);
return 0;
}
@@ -218,13 +219,14 @@ static int mcp795_read_time(struct device *dev, struct rtc_time *tim)
tim->tm_sec = bcd2bin(data[0] & 0x7F);
tim->tm_min = bcd2bin(data[1] & 0x7F);
tim->tm_hour = bcd2bin(data[2] & 0x3F);
+ tim->tm_wday = bcd2bin(data[3] & 0x07) - 1;
tim->tm_mday = bcd2bin(data[4] & 0x3F);
tim->tm_mon = bcd2bin(data[5] & 0x1F) - 1;
tim->tm_year = bcd2bin(data[6]) + 100; /* Assume we are in 20xx */
- dev_dbg(dev, "Read from mcp795: %04d-%02d-%02d %02d:%02d:%02d\n",
- tim->tm_year + 1900, tim->tm_mon, tim->tm_mday,
- tim->tm_hour, tim->tm_min, tim->tm_sec);
+ dev_dbg(dev, "Read from mcp795: %04d-%02d-%02d(%d) %02d:%02d:%02d\n",
+ tim->tm_year + 1900, tim->tm_mon, tim->tm_mday,
+ tim->tm_wday, tim->tm_hour, tim->tm_min, tim->tm_sec);
return rtc_valid_tm(tim);
}
--
2.7.4
next prev parent reply other threads:[~2016-12-25 22:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-25 22:07 [PATCH v2 0/2] Provides support for alarm Emil Bartczak
2016-12-25 22:07 ` Emil Bartczak [this message]
2016-12-25 22:07 ` [PATCH v2 2/2] rtc: mcp795: add alarm support Emil Bartczak
2017-01-10 0:54 ` [PATCH v2 0/2] Provides support for alarm Alexandre Belloni
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