litmus-rt.git/drivers/rtc, branch master

drivers/rtc/rtc-armada38x.c: remove unused local `flags'

2015-05-15T00:55:51+00:00

Reported-by: Fengguang Wu 
Cc: Gregory CLEMENT 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc: armada38x: fix concurrency access in armada38x_rtc_set_time

2015-05-06T00:10:11+00:00

While setting the time, the RTC TIME register should not be accessed.
However due to hardware constraints, setting the RTC time involves
sleeping during 100ms.  This sleep was done outside the critical section
protected by the spinlock, so it was possible to read the RTC TIME
register and get an incorrect value.  This patch introduces a mutex for
protecting the RTC TIME access, unlike the spinlock it is allowed to
sleep in a critical section protected by a mutex.

The RTC STATUS register can still be used from the interrupt handler but
it has no effect on setting the time.

Signed-off-by: Gregory CLEMENT 
Acked-by: Alexandre Belloni 
Acked-by: Andrew Lunn 
Cc: Alessandro Zummo 
Cc: 	[4.0]
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc: add rtc-abx80x, a driver for the Abracon AB x80x i2c rtc

2015-05-06T00:10:10+00:00

This is a basic driver for the ultra-low-power Abracon AB x80x series of RTC
chips. It supports in particular, the supersets AB0805 and AB1805.
It allows reading and writing the time, and enables the supercapacitor/
battery charger.

[arnd@arndb.de: abx805 depends on i2c]
[alexandre.belloni@free-electrons.com: renam buffer from date to buf in abx80x_rtc_read_time()]
Signed-off-by: Philippe De Muyter 
Cc: Alessandro Zummo 
Signed-off-by: Alexandre Belloni 
Signed-off-by: Arnd Bergmann 
Cc: Paul Bolle 
Cc: Arnd Bergmann 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers/rtc/rtc-at91rm9200.c: make IO endian agnostic

2015-04-17T13:04:12+00:00

Change the __raw IO calls to readl/write_relaxed which makes the driver
endian agnostic to run properly on big endian systems.

Signed-off-by: Ben Dooks 
Cc: Alessandro Zummo 
Cc: Andrew Victor 
Acked-by: Nicolas Ferre 
Acked-by: Jean-Christophe PLAGNIOL-VILLARD 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers/rtc/rtc-s5m.c: allow usage on device type different than main MFD type

2015-04-17T13:04:11+00:00

The RTC driver supports two flavors of S5M devices: S5M8767-like and
S2MPS14-like.

On S2MPS13 and S2MPS14 devices the RTC module is the same so we want to
re-use the existing support of S2MPS14.  However device type was passed
from parent MFD driver in platform data structure.  This way for the
S2MPS13 device the main MFD driver passed device type of 'S2MPS13X'.

Instead decouple detecting of device type between main MFD and RTC driver.
 This allows adding support for other S2MPS14 variations (like S2MPS11 and
S2MPS13) easily by adding to mfd/sec-core.c:

static const struct mfd_cell s2mps13_devs[] = {
	{ .name = "s2mps14-rtc", }
};

Signed-off-by: Krzysztof Kozlowski 
Cc: Alessandro Zummo 
Cc: Kyungmin Park 
Cc: Marek Szyprowski 
Cc: Chanwoo Choi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc: use more standard kernel logging styles

2015-04-17T13:04:02+00:00

Neaten the logging a bit by adding #define pr_fmt

Miscellanea:

o Remove __FILE__/__func__ uses
o Coalesce formats adding missing spaces
o Align arguments
o (rtc-cmos) Integrated 2 consecutive messages

Signed-off-by: Joe Perches 
Acked-by: Alexandre Belloni 
Cc: Alessandro Zummo 
Cc: Joshua Kinard 
Cc: Chanwoo Choi 
Reviewed-by: Krzysztof Kozlowski 
Tested-by: Krzysztof Kozlowski 
Cc: Aaro Koskinen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers/rtc/rtc-hym8563.c: fix swapped enable/disable of clockout control bit

2015-04-17T13:04:02+00:00

The hym8563 datasheet describes the clock output control-bit as "when set
to logic 0, the square wave output is enable, when set to logic 1, the
CLKOUT output is inhibited".  But in reality the setting is exactly
opposite.

Before now, the clock output was not really used, but on the rk3288 soc
this generated clock is used to supply the temperature sensor block and
the swapped bit value prevented it from working.  With the corrected
value, the tsadc now reports correct values.

Signed-off-by: Heiko Stuebner 
Acked-by: Alexandre Belloni 
Cc: Alessandro Zummo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers/rtc/rtc-s3c.c: remove one superfluous rtc_valid_tm() check

2015-04-17T13:04:02+00:00

s3c_rtc_gettime() already returns the result of rtc_valid_tm() on the
obtained time so get rid of another call to rtc_valid_tm().

Signed-off-by: Krzysztof Kozlowski 
Reviewed-by: Chanwoo Choi 
Cc: Alexandre Belloni 
Cc: Alessandro Zummo 
Cc: Marek Szyprowski 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers/rtc/rtc-omap.c: use module_platform_driver

2015-04-17T13:04:02+00:00

module_platform_driver_probe() prevents driver from requesting probe
deferral.  So using module_platform_drive() to support probe deferral.

Signed-off-by: Lokesh Vutla 
Acked-by: Alexandre Belloni 
Cc: Alessandro Zummo 
Cc: Paul Walmsley 
Cc: Tero Kristo 
Cc: Sekhar Nori 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers/rtc/Kconfig: update Kconfig for OMAP RTC

2015-04-17T13:04:02+00:00

RTC is present in AM43xx and DRA7xx also.  Updating the Kconfig to depend
on ARCH_OMAP or ARCH_DAVINCI

Signed-off-by: Lokesh Vutla 
Acked-by: Alexandre Belloni 
Cc: Alessandro Zummo 
Cc: Paul Walmsley 
Cc: Tero Kristo 
Cc: Sekhar Nori 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds