linux-stable.git/drivers/rtc/rtc-pcf8563.c, branch linux-5.6.y

rtc: pcf8563: Use BIT

2019-12-23T10:23:53+00:00

Replace (1 << ...) with BIT().

CC: Alessandro Zummo 
CC: Alexandre Belloni 
Signed-off-by: Nobuhiro Iwamatsu 
Link: https://lore.kernel.org/r/20191218082553.3309554-1-iwamatsu@nigauri.org
Signed-off-by: Alexandre Belloni

rtc: pcf8563: return meaningful value for RTC_VL_READ

2019-12-18T09:37:32+00:00

PCF8563_SC_LV means the voltage dropped too low and data has been lost.

Link: https://lore.kernel.org/r/20191214220259.621996-10-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni

rtc: pcf8563: stop caching voltage_low

2019-12-18T09:37:30+00:00

voltage_low is only updated when reading the time, this means that using
RTC_VL_READ will miss the VL flag if the time has not been read before
using the ioctl. Always read the status from the hardware.

Link: https://lore.kernel.org/r/20191214220259.621996-9-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni

rtc: pcf8563: remove conditional compilation

2019-12-18T09:37:28+00:00

Always compile pcf8563_rtc_ioctl as we are sure that CONFIG_RTC_INTF_DEV is
selected on actual kernel configurations.

Link: https://lore.kernel.org/r/20191214220259.621996-8-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni

rtc: pcf8563: remove RTC_VL_CLR handling

2019-12-18T09:37:27+00:00

Remove RTC_VL_CLR handling because it is a disservice to userspace as it
removes the important information that the RTC data is invalid. This may
lead userspace to set an invalid system time later on.

Link: https://lore.kernel.org/r/20191214220259.621996-7-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni

rtc: pcf8563: Constify clkout_rates

2019-11-15T10:58:16+00:00

The lates of clockout should be marked const. Make that so.

Signed-off-by: Nobuhiro Iwamatsu 
Link: https://lore.kernel.org/r/20191108002449.15097-1-iwamatsu@nigauri.org
Signed-off-by: Alexandre Belloni

rtc: pcf8563: let the core handle range offsetting

2019-09-01T08:57:47+00:00

Set the RTC range properly and use the core windowing and offsetting to
(unfortunately) map back to a 1970-2069 range.

Link: https://lore.kernel.org/r/20190829212547.19185-5-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni

rtc: pcf8563: remove useless indirection

2019-09-01T07:18:50+00:00

pcf8563_rtc_read_time and pcf8563_set_datetime are only used after casting
dev to an i2c_client. Remove that useless indirection.

Link: https://lore.kernel.org/r/20190829212547.19185-4-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni

rtc: pcf8563: convert to devm_rtc_allocate_device

2019-09-01T07:18:46+00:00

This allows further improvement of the driver.

Link: https://lore.kernel.org/r/20190829212547.19185-3-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni

rtc: pcf8563: add Microcrystal RV8564 compatible

2019-09-01T07:18:42+00:00

Add a compatible string for the Microcrystal RV8564.

Link: https://lore.kernel.org/r/20190829212547.19185-2-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni