linux-stable.git/Documentation/devicetree/bindings/rtc, branch v3.19

Merge tag 'powerpc-3.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

2014-12-12T01:48:14+00:00

Pull powerpc updates from Michael Ellerman:
"Some nice cleanups like removing bootmem, and removal of
__get_cpu_var().

There is one patch to mm/gup.c. This is the generic GUP
implementation, but is only used by us and arm(64). We have an ack
from Steve Capper, and although we didn't get an ack from Andrew he
told us to take the patch through the powerpc tree.

There's one cxl patch. This is in drivers/misc, but Greg said he was
happy for us to manage fixes for it.

There is an infrastructure patch to support an IPMI driver for OPAL.

There is also an RTC driver for OPAL. We weren't able to get any
response from the RTC maintainer, Alessandro Zummo, so in the end we
just merged the driver.

The usual batch of Freescale updates from Scott"

* tag 'powerpc-3.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (101 commits)
powerpc/powernv: Return to cpu offline loop when finished in KVM guest
powerpc/book3s: Fix partial invalidation of TLBs in MCE code.
powerpc/mm: don't do tlbie for updatepp request with NO HPTE fault
powerpc/xmon: Cleanup the breakpoint flags
powerpc/xmon: Enable HW instruction breakpoint on POWER8
powerpc/mm/thp: Use tlbiel if possible
powerpc/mm/thp: Remove code duplication
powerpc/mm/hugetlb: Sanity check gigantic hugepage count
powerpc/oprofile: Disable pagefaults during user stack read
powerpc/mm: Check for matching hpte without taking hpte lock
powerpc: Drop useless warning in eeh_init()
powerpc/powernv: Cleanup unused MCE definitions/declarations.
powerpc/eeh: Dump PHB diag-data early
powerpc/eeh: Recover EEH error on ownership change for BCM5719
powerpc/eeh: Set EEH_PE_RESET on PE reset
powerpc/eeh: Refactor eeh_reset_pe()
powerpc: Remove more traces of bootmem
powerpc/pseries: Initialise nvram_pstore_info's buf_lock
cxl: Name interrupts in /proc/interrupt
cxl: Return error to PSL if IRQ demultiplexing fails & print clearer warning
...

rtc: omap: drop vendor-prefix from power-controller dt property

2014-12-11T01:41:16+00:00

Drop the vendor-prefix from the "ti,system-power-controller" device-tree
property name.

It has been agreed to make "system-power-controller" a standard property
and to drop the vendor-prefix that is currently used by several drivers.

Note that drivers that have used ",system-power-controller" in a
released kernel will need to support both versions.

Signed-off-by: Johan Hovold 
Cc: Tony Lindgren 
Cc: Benot Cousson 
Cc: Alessandro Zummo 
Cc: Felipe Balbi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc: omap: add support for pmic_power_en

2014-12-11T01:41:14+00:00

Add new property "ti,system-power-controller" to register the RTC as a
power-off handler.

Some RTC IP revisions can control an external PMIC via the pmic_power_en
pin, which can be configured to transition to OFF on ALARM2 events and
back to ON on subsequent ALARM (wakealarm) events.

This is based on earlier work by Colin Foe-Parker and AnilKumar Ch. [1]

[1] https://www.mail-archive.com/linux-omap@vger.kernel.org/msg82127.html

[akpm@linux-foundation.org: add comment]
Signed-off-by: Johan Hovold 
Cc: Colin Foe-Parker 
Cc: AnilKumar Ch 
Cc: Alessandro Zummo 
Cc: Tony Lindgren 
Cc: Benot Cousson 
Cc: Lokesh Vutla 
Cc: Guenter Roeck 
Cc: Sekhar Nori 
Cc: Tero Kristo 
Cc: Keerthy J 
Tested-by: Felipe Balbi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc/tpo: Driver to support rtc and wakeup on PowerNV platform

2014-11-17T07:04:01+00:00

The patch implements the OPAL rtc driver that binds with the rtc
driver subsystem. The driver uses the platform device infrastructure
to probe the rtc device and register it to rtc class framework. The
'wakeup' is supported depending upon the property 'has-tpo' present
in the OF node. It provides a way to load the generic rtc driver in
in the absence of an OPAL driver.

The patch also moves the existing OPAL rtc get/set time interfaces to the
new driver and exposes the necessary OPAL calls using EXPORT_SYMBOL_GPL.

Test results:
-------------
Host:
[root@tul169p1 ~]# ls -l /sys/class/rtc/
total 0
lrwxrwxrwx 1 root root 0 Oct 14 03:07 rtc0 -> ../../devices/opal-rtc/rtc/rtc0
[root@tul169p1 ~]# cat /sys/devices/opal-rtc/rtc/rtc0/time
08:10:07
[root@tul169p1 ~]# echo `date '+%s' -d '+ 2 minutes'` > /sys/class/rtc/rtc0/wakealarm
[root@tul169p1 ~]# cat /sys/class/rtc/rtc0/wakealarm
1413274345
[root@tul169p1 ~]#

FSP:
$ smgr mfgState
standby
$ rtim timeofday

System time is valid: 2014/10/14 08:12:04.225115

$ smgr mfgState
ipling
$

CC: devicetree@vger.kernel.org
CC: tglx@linutronix.de
CC: rtc-linux@googlegroups.com
CC: a.zummo@towertech.it
Signed-off-by: Neelesh Gupta 
Signed-off-by: Michael Ellerman

rtc: at91sam9: add DT bindings documentation

2014-11-13T15:08:48+00:00

Add RTT bindings documentation.

Signed-off-by: Boris BREZILLON 
Acked-by: Johan Hovold 
Acked-by: Arnd Bergmann 
Signed-off-by: Nicolas Ferre

Documentation: dt-bindings: trickle charger dt binding document for ds1339

2014-10-14T00:18:18+00:00

Some DS13XX devices have "trickle chargers".  Introduce a device tree
binding for the resistor and diode configuration for enabling trickle
charger.

Signed-off-by: Matti Vaittinen 
Acked-by: Jason Cooper 
Cc: Rob Herring 
Cc: Pawel Moll 
Cc: Guenter Roeck 
Cc: Alessandro Zummo 
Cc: Mark Rutland 
Cc: Pavel Machek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc: s3c: add support for RTC of Exynos3250 SoC

2014-10-14T00:18:17+00:00

Add support for RTC of Exynos3250 SoC.  The Exynos3250 needs source
clock(32.768KHz) for RTC block.  If source clock of RTC is registerd on
clock list of common clk framework, Exynos RTC drvier have to control
this clock.

Clock list for s3c-rtc device:
- rtc : CLK_RTC of CLK_GATE_IP_PERIR is gate clock for RTC.
- rtc_src : XrtcXTI is 32.768.kHz source clock for RTC.
 (XRTCXTI: Specifies a clock from 32.768 kHz crystal pad with XRTCXTI and
 XRTCXTO pins. RTC uses this clock as the source of a real-time clock.)

Signed-off-by: Chanwoo Choi 
Acked-by: Kyungmin Park 
Cc: Alessandro Zummo 
Cc: Kukjin Kim 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc: s3c: remove warning message when checking coding style with checkpatch script

2014-10-14T00:18:17+00:00

Remove warning message when checking codeing style with checkpatch script
and reduce un-necessary i2c read operation on s3c_rtc_enable.

    WARNING: line over 80 characters
    #406: FILE: drivers/rtc/rtc-s3c.c:406:
    +		if ((readw(info->base + S3C2410_RTCCON) & S3C2410_RTCCON_RTCEN) == 0) {

    WARNING: line over 80 characters
    #414: FILE: drivers/rtc/rtc-s3c.c:414:
    +		if ((readw(info->base + S3C2410_RTCCON) & S3C2410_RTCCON_CNTSEL)) {

    WARNING: line over 80 characters
    #422: FILE: drivers/rtc/rtc-s3c.c:422:
    +		if ((readw(info->base + S3C2410_RTCCON) & S3C2410_RTCCON_CLKRST)) {

    WARNING: Missing a blank line after declarations
    #451: FILE: drivers/rtc/rtc-s3c.c:451:
    +	struct s3c_rtc_drv_data *data;
    +	if (pdev->dev.of_node) {

    WARNING: Missing a blank line after declarations
    #453: FILE: drivers/rtc/rtc-s3c.c:453:
    +		const struct of_device_id *match;
    +		match = of_match_node(s3c_rtc_dt_match, pdev->dev.of_node);

    WARNING: DT compatible string "samsung,s3c2416-rtc" appears un-documented -- check ./Documentation/devicetree/bindings/
    #650: FILE: drivers/rtc/rtc-s3c.c:650:
    +		.compatible = "samsung,s3c2416-rtc",

    WARNING: DT compatible string "samsung,s3c2443-rtc" appears un-documented -- check ./Documentation/devicetree/bindings/
    #653: FILE: drivers/rtc/rtc-s3c.c:653:
    +		.compatible = "samsung,s3c2443-rtc",

Signed-off-by: Chanwoo Choi 
Acked-by: Kyungmin Park 
Cc: Alessandro Zummo 
Cc: Kukjin Kim 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rtc: sun6i: Add sun6i RTC driver

2014-09-19T10:39:19+00:00

This patch introduces the driver for the RTC in the Allwinner A31 and
A23 SoCs.

Unlike the RTC found in A10/A20 SoCs, which was part of the timer, the
RTC in A31/A23 are a separate hardware block, which also contain a few
controls for the RTC block hardware (a regulator and RTC block GPIO pin
latches), while also having separate interrupts for the alarms.

The hardware is different enough to make a different driver for it.

Signed-off-by: Chen-Yu Tsai 
Reviewed-by: Varka Bhadram 
Signed-off-by: Maxime Ripard

drivers/rtc/rtc-hym8563.c: add optional clock-output-names property

2014-06-06T23:08:08+00:00

This enables the setting of a custom clock name for the clock provided by
the hym8563 rtc.

Signed-off-by: Heiko Stuebner 
Reviewed-by: Mike Turquette 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds