02 Dec, 2009
3 commits
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When detecting power failure, the probe function would reset the clock
time to defined state.However, the clock's _date_ might still be bogus and a subsequent probe
fails when sanity-checking these values.Change the power-failure fixup code to do a full setting of rtc_time,
including a valid date.Signed-off-by: Johannes Weiner
Cc: Alessandro Zummo
Cc: Paul Gortmaker
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The possible CCR_Y2K register values are 19 or 20 and struct rtc_time's
tm_year is in years since 1900.The function translating rtc_time to register values assumes tm_year to be
years since first christmas, though, and we end up storing 0 or 1 in the
CCR_Y2K register, which the hardware does not refuse to do.A subsequent probing of the clock fails due to the invalid value range in
the register, though.[ And if it didn't, reading the clock would yield a bogus year because
the function translating registers to tm_year is assuming a register
value of 19 or 20. ]This fixes the conversion from years since 1900 in tm_year to the
corresponding CCR_Y2K value of 19 or 20.Signed-off-by: Johannes Weiner
Cc: Alessandro Zummo
Cc: Paul Gortmaker
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
"rtc" is freed and then dereferenced on the next line. This patch fixes
that.Signed-off-by: Dan Carpenter
Acked-by: Alessandro Zummo
Cc: David Brownell
Cc: Paul Gortmaker
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
17 Nov, 2009
1 commit
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This will fix some small issues with the COH 901 331 RTC driver:
- Interrupt is disabled after alarm so that we don't fire
multiple interrupts.
- We return 0 from the coh901331_alarm_irq_enable() ridding
a compile warning.
- We alter the name in the U300 device registry to match that
of the driver so they sucessfully resolve.Signed-off-by: Linus Walleij
Signed-off-by: Russell King
12 Nov, 2009
4 commits
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v3020_mmio_read_bit() always returns 0 when left_shift > 7.
v3020_mmio_read_bit()'s return type is (unsigned char). The code returns
a value masked by (1 << left_shift) that is casted to the return type. If
left_shift is larger than 7, the cast will always result in a 0 return
value. The problem was discovered with left_shift = 16, and the included
patch corrects the problem.The bug was introduced in the last (Apr 3 2009) commit of the file, kernel
versions 2.6.30 and later.Cc: Alessandro Zummo
Cc: Paul Gortmaker
Cc: Raphael Assenat
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
drivers/rtc/rtc-vr41xx.c: In function 'vr41xx_rtc_irq_set_freq':
drivers/rtc/rtc-vr41xx.c:217: warning: comparison of distinct pointer types lacks a cast
drivers/rtc/rtc-vr41xx.c:217: warning: right shift count >= width of type
drivers/rtc/rtc-vr41xx.c:217: warning: passing argument 1 of '__div64_32' from incompatible pointer type
include/asm-generic/div64.h:35: note: expected 'uint64_t *' but argument is of type 'long unsigned int *'Signed-off-by: Yoichi Yuasa
Cc: Alessandro Zummo
Cc: Paul Gortmaker
Cc: Paul Mundt
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
According to Documentation/rtc.txt, RTC_WKALM_SET sets the alarm time and
enables/disables the alarm. We implement RTC_WKALM_SET through
pcf50633_rtc_set_alarm. The enabling/disabling part was missing.Signed-off-by: Werner Almesberger
Reported-by: Michael 'Mickey' Lauer
Signed-off-by: Paul Fertser
Cc: Paul Gortmaker
Cc: Balaji Rao
Cc: Alessandro Zummo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The PCF50633 stores a month value of 1-12, but the kernel wants 0-11.
Signed-off-by: Rask Ingemann Lambertsen
Signed-off-by: Paul Fertser
Cc: Paul Gortmaker
Cc: Balaji Rao
Cc: Alessandro Zummo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
12 Oct, 2009
1 commit
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After m68k's task_thread_info() doesn't refer to current,
it's possible to remove sched.h from interrupt.h and not break m68k!
Many thanks to Heiko Carstens for allowing this.Signed-off-by: Alexey Dobriyan
25 Sep, 2009
1 commit
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Conflicts:
MAINTAINERS
23 Sep, 2009
14 commits
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CONFIG_RTC_HCTOSYS allows the kernel to read the system time from the RTC
at boot and resume, avoiding the need for userspace to do so.
Unfortunately userspace currently has no way to know whether this
configuration option is enabled and thus cannot sensibly choose whether to
run hwclock itself or not. Add a hctosys sysfs attribute which indicates
whether a given RTC set the system clock.Signed-off-by: Matthew Garrett
Acked-by: Alessandro Zummo
Cc: Mark Brown
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix two new-ish runtime warnings in the at91rm9200 (etc) RTC:
Platform driver 'at91_rtc' needs updating - please use dev_pm_ops
... by just switchingIRQ 1/at91_rtc: IRQF_DISABLED is not guaranteed on shared IRQs
... no longer needed now that rtc_update_irq() changedSigned-off-by: David Brownell
Acked-by: Alessandro Zummo
Cc: Andrew Victor
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Error handling code following a kzalloc should free the allocated data.
The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)//
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
}
(
x->f1 = E
|
(x->f1 == NULL || ...)
|
f(...,x->f1,...)
)
...>
(
return \(0\|\|ptr\);
|
return@p2 ...;
)@script:python@
p1 << r.p1;
p2 << r.p2;
@@print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
//Signed-off-by: Julia Lawall
Cc: David Brownell
Cc: Alessandro Zummo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This code is not executed before ds1307->rtc has been successfully
initialized to the result of calling rtc_device_register. Thus the test
that ds1307->rtc is not NULL is always true.A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)//
@match exists@
expression x, E;
statement S1, S2;
@@x = rtc_device_register(...)
... when != x = E
(
* if (x == NULL || ...) S1 else S2
|
* if (x == NULL && ...) S1 else S2
)
//Signed-off-by: Julia Lawall
Acked-by: Wolfram Sang
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
[ospite@studenti.unina.it: get pcap data from the parent device]
Signed-off-by: guiming zhuo
Signed-off-by: Daniel Ribeiro
Acked-by: Alessandro Zummo
Signed-off-by: Antonio Ospite
Cc: Mark Brown
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Alessandro Zummo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add support for RTC on the Freescale STMP37xx/378x platform.
Signed-off-by: dmitry pervushin
Signed-off-by: Alessandro Zummo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The Blackfin RTC IRQ is an internal interrupt, so it makes no sense to
have it be shared.Signed-off-by: Michael Hennerich
Signed-off-by: Mike Frysinger
Signed-off-by: Alessandro Zummo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This adds a driver for the RTC COH 901 331 found in the ST-Ericsson U300
series mobile platforms to the RTC subsystem. It integrates to the ARM
kernel support recently added to RMKs ARM tree and will be enabled in the
U300 defconfig in due time.Signed-off-by: Linus Walleij
Signed-off-by: Alessandro Zummo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This adds a driver for Freescale's MXC internal real time clock modules.
The code is taken from Freescale's BSPs, but modified to fit the current
kernel coding mechanisms. Also, the PMIC external clock function was
removed for now to not add dead bits and keep the code as simple as
possible.[akpm@linux-foundation.org: make PIE_BIT_DEF[] static]
Signed-off-by: Daniel Mack
Cc: Sascha Hauer
Signed-off-by: Alessandro ZummoCc: Alessandro Zummo
Cc: Daniel Mack
Cc: Sascha Hauer
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off: Chris Verges
Cc: Christian Pellegrin
Cc: Alessandro Zummo
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add support for the Philips/NXP PCF2123 RTC.
Signed-off: Chris Verges
Tested-by: Chris Verges
Signed-off: Christian Pellegrin
Tested-by: Christian Pellegrin
Cc: Alessandro Zummo
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This makes it consistent with other buses (platform, i2c, vio, ...). I'm
not sure why we use the prefixes, but there must be a reason.This was easy enough to do it, and I did it.
Signed-off-by: Anton Vorontsov
Cc: David Brownell
Cc: David Woodhouse
Cc: Grant Likely
Cc: Jean Delvare
Cc: Ben Dooks
Cc: Benjamin Herrenschmidt
Cc: Dmitry Torokhov
Cc: Samuel Ortiz
Cc: "John W. Linville"
Acked-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
21 Sep, 2009
1 commit
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Signed-off-by: Joe Perches
Signed-off-by: Jiri Kosina
19 Sep, 2009
1 commit
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* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (262 commits)
sh: mach-ecovec24: Add user debug switch support
sh: Kill off unused se_skipped in alignment trap notification code.
sh: Wire up HAVE_SYSCALL_TRACEPOINTS.
video: sh_mobile_lcdcfb: use both register sets for display panning
video: sh_mobile_lcdcfb: implement display panning
sh: Fix up sh7705 flush_dcache_page() build.
sh: kfr2r09: document the PLL/FLL RF relationship.
sh: mach-ecovec24: need asm/clock.h.
sh: mach-ecovec24: deassert usb irq on boot.
sh: Add KEYSC support for EcoVec24
sh: add kycr2_delay for sh_keysc
sh: cpufreq: Include CPU id in info messages.
sh: multi-evt support for SH-X3 proto CPU.
sh: clkfwk: remove bogus set_bus_parent() from SH7709.
sh: Fix the indication point of the liquid crystal of AP-325RXA(AP3300)
sh: Add EcoVec24 romImage defconfig
sh: USB disable process is needed if romImage boot for EcoVec24
sh: EcoVec24: add HIZA setting for LED
sh: EcoVec24: write MAC address in boot
sh: Add romImage support for EcoVec24
...
17 Sep, 2009
2 commits
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This adds support for the RTC found inside the AB3100 Mixed Signal chip.
The symbols used for communicating with the chip is found in the
mfd/ab3100-core.c driver that also provides the platform device.Signed-off-by: Linus Walleij
Acked-by: Alessandro Zummo
Signed-off-by: Samuel Ortiz -
The WM831x series of PMICs contain RTC functionality. The hardware
provides a 32 bit counter incrementing at 1Hz together with a per
tick interrupt and an alarm value. For simplicity the driver chooses
to define the epoch for the counter as the Unix epoch - if required
platform data can be used in future to customise this.When powered on from a completely cold state the RTC reports that it
has not been configured - when this happens an error is returned
when attempting to read the RTC in order to avoid use of values we
know to be invalid.The hardware also provides security features which mean that it can
ignore attempts to set the RTC time in certain circumstances, most
notably if the RTC is written to too often. These errors are detected
by verifying the written RTC value.Signed-off-by: Mark Brown
Acked-by: Alessandro Zummo
Signed-off-by: Samuel Ortiz
16 Sep, 2009
2 commits
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Conflicts:
arch/sh/kernel/vmlinux.lds.S -
Due to problems at cam.org, my nico@cam.org email address is no longer
valid. FRom now on, nico@fluxnic.net should be used instead.Signed-off-by: Nicolas Pitre
Signed-off-by: Linus Torvalds
10 Sep, 2009
2 commits
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Remove the following warning:
Platform driver 'sa1100-rtc' needs updating - please use dev_pm_opsSigned-off-by: Haojian Zhuang
Signed-off-by: Eric Miao -
Remove the following warning:
Platform driver 'pxa-rtc' needs updating - please use dev_pm_opsSigned-off-by: Haojian Zhuang
Signed-off-by: Robert Jarzmik
Signed-off-by: Eric Miao
09 Sep, 2009
1 commit
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With the reordered init order, the rtc device is not registered until
later, while sh_rtc_irq_set_freq() was attempting to assign ->irq_freq
directly, resulting in an oops. This is handled by the upper layers for
us, so just kill off the problematic dereference completely.Reported-by: Guennadi Liakhovetski
Signed-off-by: Paul Mundt
20 Aug, 2009
3 commits
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There were a few stray unused variables left over, kill them off.
Signed-off-by: Paul Mundt
-
- simplifies irq set freq
- ioctl() was duplicating functionalities of rtc-dev core
- corrected initialization sequence
- use platform_driver_probeSigned-off-by: Alessandro Zummo
Cc: Angelo Castello
Cc: Giuseppe Cavallaro
Cc: Kay Sievers
Cc: Jamie Lenehan
Signed-off-by: Paul Mundt -
- removed spinlock protection, it's handled by the rtc class
- use platform_driver_probe
- return appropriate code for rtc_read_time
- style issuesSigned-off-by: Alessandro Zummo
Signed-off-by: Paul Mundt
30 Jul, 2009
1 commit
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rtc-cmos has two drivers, one PNP and one platform. When PNP has not
succeeded probing, platform is registered. However, it tries to
unregister both drivers unconditionally, instead of only unregistering
those that were successfully registered. This causes runtime warnings to
be emitted from the driver core code.Fix this with a boolean variable for each driver indicating whether
registering was successful.Signed-off-by: Thadeu Lima de Souza Cascardo
Cc: David Brownell
Cc: Bjorn Helgaas
Cc: Alessandro Zummo
Cc: Ingo Molnar
Cc: David Brownell
Cc: Kay Sievers
Cc: Greg KH
Cc: Ozan Caglayan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Jul, 2009
1 commit
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When i2c_smbus_read_byte_data fails in ds1374_work, we forgot to unlock
the held lock. Fix that.Signed-off-by: Jiri Slaby
Cc: Alessandro Zummo
Cc: Scott Wood
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
03 Jul, 2009
1 commit
-
Signed-off-by: Yoichi Yuasa
Signed-off-by: Ralf Baechle
01 Jul, 2009
1 commit
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Make sure we do not actually request the RTC IRQ until the device driver
is fully ready to handle and process any interrupt. This way a spurious
interrupt won't crash the system (which may happen if the bootloader was
poking the RTC right before booting Linux).Signed-off-by: Mike Frysinger
Signed-off-by: Alessandro Zummo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
