Commit Graph

3 Commits

Author SHA1 Message Date
Gregory CLEMENT 78ef5f2d2d rtc: rv8803: Extend compatibility with the rx8900
The Seiko Epson's RTC RX8900 layout register is compatible with the
RV8803. So let's add its ID in order to reuse the same driver.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-01-11 20:20:00 +01:00
Andrzej Hajda 68c85f2916 rtc: rv8803: fix handling return value of i2c_smbus_read_byte_data
The function can return negative values, so its result should
be assigned to signed variable.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-01-11 20:20:00 +01:00
Alexandre Belloni 1e3929ef0e rtc: Add a driver for Micro Crystal RV8803
This driver supports the following functions:
 - reading and settings time
 - alarms when connected to an IRQ
 - reading and clearing the voltage low flags
 - nvram

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-11-08 14:12:32 +01:00