Enum lp8727_chg_state can be removed because only one charger status is
used - EOC(End Of Charge).
To check whether the EOC is reached or not, use simple comparison rather
than shift-operation.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
For better understanding, use specific function and definitions rather
than magic numbers. New enum type for die temperature is matched with hex
codes. Specific temperature names are better than 0x1, 0x2 and 0x3.
And lp8727_is_high_temperature() function has better readability than
comparing raw register values.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
To initialize the device, previous interrupts need to be cleared while
loading the driver.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
For better understanding, function name is changed. (lp8727_intr_config()
is replaced with lp8727_setup_irq().)
The private IRQ number is set when the IRQ is allocated successfully. This
data is used for releasing the IRQ on unloading the driver. Even the IRQ
number is not defined, the driver should be operated. In this case, just
return as 0.
In additional function lp8727_release_irq(), the workqueue is canceled and
the allocated IRQ is released.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
LP8727 has two IRQ threads. One is the I2C HW IRQ pin, the other is for
delayed interrupt processing. But this delayed processing can be handled
without additional single thread by using schedule_delayed_work() with
jiffies time value.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Debounce time is configurable in the platform side. If it is not defined,
the default value is 270ms.
Platform data is msec unit, and this time is converted to jiffies
internally. The workqueue uses this jiffies time in the interrupt
handling. So debounce_jiffies is added in the private data.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
LP8727 platform data is optional, so the driver should work even the
platform data is NULL.
To check the platform data, charging parameter data should be changed to
the pointer type.
Fix NULL point access problem when getting the battery properties. When
the data is NULL, just return as invalid value.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
If the lp8727_register_psy() gets failed, registered interrupt handler
should be freed, but this is not complete solution. It has still problem.
Assume that the IRQ occurs while unregistering power supply devices. Then
the ISR will access to freed IRQ.
From Anton's opinion, it can be resolved if re-ordering the call sequence.
Register power supplies first, then create interrupt handler. Then no need
to free the IRQ in _probe(). Additionally goto statements can be removed
because those can be replaced with return statements.
The _remove() should be changed the sequence - in reverse order of
_probe()
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Use devm_kzalloc() rather than kzalloc()/kfree() to make
allocating/freeing the private data simpler.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Generated by: scripts/coccinelle/misc/irqf_oneshot.cocci
Make sure threaded IRQs without a primary handler are always request with IRQF_ONESHOT
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Generated by: scripts/coccinelle/misc/irqf_oneshot.cocci
ERROR: Threaded IRQ with no primary handler requested without IRQF_ONESHOT
Make sure threaded IRQs without a primary handler are always request
with IRQF_ONESHOT
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Sparse complains:
CHECK drivers/power/88pm860x_battery.c
drivers/power/88pm860x_battery.c:128:5: warning: symbol 'array_soc' was not declared. Should it be static?
CHECK drivers/power/88pm860x_charger.c
drivers/power/88pm860x_charger.c:640:3: warning: symbol 'pm860x_irq_descs' was not declared. Should it be static?
CHECK drivers/mfd/88pm860x-core.c
drivers/mfd/88pm860x-core.c:803:53: warning: incorrect type in assignment (different base types)
drivers/mfd/88pm860x-core.c:803:53: expected struct charger_regulator *charger_regulators
drivers/mfd/88pm860x-core.c:803:53: got struct regulator_bulk_data static [toplevel] *
The issues are minor, except for the last one. We seemed to use
'regulator_bulk_data' struct (just as charger manager documentation
wrongly tells us), but in real it should have been
'struct charger_regulator'. The only reason that it worked is
because both 'supply' and 'regulator_name' struct members are the
first in these structs. :-)
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
There are charger and battery measurement feature for 88pm860x PMIC.
For charger, it can support pre-charge with small current when battery is
nearly exausted and then changed into fast-charge with CC&CV mode.
For battery monitor, it can support battery measurement such as
vbat,vsys,vchg and ibat etc,it can aslo accumulating the Coulomb value
charged or discharged from battery based on Conlomb Counter, we use it
to estimate battery capacity.
Signed-off-by: Jett.Zhou <jtzhou@marvell.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
TI LP8788 PMU supports regulators, battery charger, RTC, ADC, backlight
driver and current sinks.
This patch supports the charger operations including the charger
interrupt handling.
The LP8788 charger driver provides configurable platform data. The
charger platform data includes ADC input ID, maximum battery voltage,
charging parameters and etc.
The ADC input is used for getting the battery voltage and temperature.
Charging parameters are used for updating the charger operations such
like setting charging current and setting End-of-charge conditions.
When the charging interrupt occurs, power supply uevents are generated
in order to update the user-space information. For platform specific
charger action, the charger_event() function can be used in the
platform side.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
We should decrement "i" before doing the free_irq(). If we call this
because request_threaded_irq() failed then we don't want to free the
thing which failed. Or in the case where we get here because
power_supply_register() failed then the original codes does a read past
the end of the array.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Turns out this driver doesn't actually try talking to the device at
probe time, so if it's incorrectly configured in the device tree or
platform data (or if the battery has been removed from the system),
then probe will succeed and every access will sit there and time out.
The end result is a possibly laggy system that thinks it has a battery
but can never read status, which isn't very useful.
Instead, just read any register (I chose status) at probe, and if that
fails, don't register the device.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
This patch checks for charger status register for determining the
battery charging status and reports Discharing/Charging/Not Charging/Full
accordingly.
This patch also adds the interrupt support for Safety Timer Expiration.
This interrupt is helpful in debugging the cause for charger fault.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
When I reboot my iPAQ hx4700 in its cradle, the battery will not begin
to charge even though the AC supply is connected. Charging will start
only after the PDA power driver is tickled by some other power event,
such as reseating the iPAQ in its cradle or connecting the USB cable.
The problem lies in pda_power_probe(), where ac_draw is used by the call
to update_charger() before being set by the call to regulator_get().
Moving the regulator_get() call to before the update_charger() call
fixes the problem.
Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
There are different types of chargers avalibale like AC, Solar, USB,
etc.. Even in USB we have different types SDP/DCP/CDP/ACA and all these
chargers have different o/p ratings. For example SDP supports only 500mA
of charge current whereas AC charger can support upto 8A or more.
Similarly batteries also come with charge current and voltage ratings
and these ratings vary depending on its capacity and the technology
used.
This patch adds two new power supply properties
CONSTANT_CHARGE_CURRENT_MAX and CONSTANT_CHARGE_CURRENT_MAX.
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
The comment says that charger_regulators is an array of
regulator_bulk_data, which is not true, since it's actually a pointer
to 'struct charger_regulator'.
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
This patch remove unnecessary variable(cm->fullbatt_vchk_uV) by using
'desc->fullbatt_uV' field directly in fullbatt_handler() function
to check the state of battery.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
This patch disable regulator for charging when charger cable is detached
before stopping charging forcibly on abnormal battery state and check
return value of regulator_enable/disable() function to confirm correct
operation of enabling or disabling regulator for charging.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Noticed the new warning:
CHECK drivers/power/da9030_battery.c
drivers/power/da9030_battery.c:190:68: warning: Using plain integer as NULL pointer
This commit fixes the issue.
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
It is possible that users can use non-standard chargers or use invalid
batteries especially with mobile devices.
This patch adds a new power supply property called 'AUTHENTIC' to
indicate this to the user(user space).
Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
With devm_kzalloc there is no need of freeing at the errorpath and also
at unregister it.
Signed-off-by: Devendra Naga <develkernel412222@gmail.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
module_platform_driver can be used to replace the platform_driver
register and unregister functions, with the calls to module_init
and module_exit,
i.e. all the code that is doing like the below
static int __init mymod_init(void)
{
return platform_driver_register(&drv_operations);
}
static void __exit mymod_exit(void)
{
platform_driver_unregister(&drv_operations);
}
module_init(mymod_init);
module_exit(mymod_exit);
can be replaced with
module_platform_driver(drv_operations)...
Signed-off-by: Devendra Naga <develkernel412222@gmail.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
It would be better not to use the 0b-prefix for earlier versions of
gcc-4.3.
Signed-off-by: Il Han <corone.il.han@gmail.com>
Acked-by: NeilBrown <neilb@suse.de>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
The fix for MFD part is already merged so we can remove the broken mark
for da9052-battery.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
The patch fixes the following warnings:
CHECK drivers/power/da9052-battery.c
drivers/power/da9052-battery.c:330:15: warning: symbol 'da9052_determine_vc_tbl_index' was not declared. Should it be static?
CC drivers/power/da9052-battery.o
drivers/power/da9052-battery.c: In function 'da9052_determine_vc_tbl_index':
drivers/power/da9052-battery.c:348:1: warning: control reaches end of non-void function [-Wreturn-type]
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
if usb power supply registration fails,
we wont unregister the ac power supply
if battery power supply registration fails,
we wont unregister the usb, and ac supply,
take care of those things and also no need of goto -err_mem: at the fail case of
kzalloc simply can have return -ENOMEM
Signed-off-by: Devendra Naga <develkernel412222@gmail.com>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Initialize return variable before exiting on an error path.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Initialize return variable before exiting on an error path.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Initialize return variable before exiting on an error path.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Initialize return variable before exiting on an error path.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Initialize return variable before exiting on an error path.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
(
if@p1 (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret@p1 = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Following a report of a crash during an automount expire I found that
the locking in fs/autofs4/expire.c:get_next_positive_subdir() was wrong.
Not only is the locking wrong but the function is more complex than it
needs to be.
The function is meant to calculate (and dget) the next entry in the list
of directories contained in the root of an autofs mount point (an autofs
indirect mount to be precise). The main problem was that the d_lock of
the owner of the list was not being taken when walking the list, which
lead to list corruption under load. The only other lock that needs to
be taken is against the next dentry candidate so it can be checked for
usability.
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'vfio-for-v3.6-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO fix from Alex Williamson:
"Just a trivial patch to include vfio.h in the installed headers so we
can complete userspace integration into QEMU."
* tag 'vfio-for-v3.6-rc1' of git://github.com/awilliam/linux-vfio:
vfio: Include vfio.h in installed headers
* On machines with large MMIO/PCI E820 spaces we fail to boot b/c
we failed to pre-allocate large enough virtual space for extend_brk.
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Merge tag 'stable/for-linus-3.6-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull Xen fix from Konrad Rzeszutek Wilk:
"Way back in v3.5 we added a mechanism to populate back pages that were
released (they overlapped with MMIO regions), but neglected to reserve
the proper amount of virtual space for extend_brk to work properly.
Coincidentally some other commit aligned the _brk space to larger area
so I didn't trigger this until it was run on a machine with more than
2GB of MMIO space."
* On machines with large MMIO/PCI E820 spaces we fail to boot b/c
we failed to pre-allocate large enough virtual space for extend_brk.
* tag 'stable/for-linus-3.6-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/p2m: Reserve 8MB of _brk space for P2M leafs when populating back.
Moved to djbw@fb.com
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: Dan Williams <djbw@fb.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When dumping "Code: " sections from an oops, the trapping instruction
%rip points to can be a string copy
2b:* f3 a5 rep movsl %ds:(%rsi),%es:(%rdi)
and the line contain a bunch of ":". Current "cut" selects only the and
the second field output looks funnily overlaid this:
2b:* f3 a5 rep movsl %ds <-- trapping instruction:(%rsi),%es:(%rdi
Fix this by selecting the remaining fields too.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull two slave-dmaengine fixes from Vinod Koul:
"One fixes the correct use of clock API in imx driver and the other
enables clock for tegra driver, which is used for other tegra driver
conversion to dmanegine in -next."
* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
dma: tegra: enable/disable dma clock
dma: imx-dma: Fix kernel crash due to missing clock conversion
Pull more drm fixes from Dave Airlie:
"Just some intel and nouveau ones this time, intel has more edp panel
fixes for macbooks and nouveau has a suspend/resume regression fix in
there."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/i915: Apply post-sync write for pipe control invalidates
drm/i915: reorder edp disabling to fix ivb MacBook Air
drm/nv86/fifo: suspend fix
drm/nouveau: disable copy engine on NVAF
nouveau: fixup scanout enable in nvc0_pm
drm/nouveau/aux: mask off higher bits of auxch index in i2c table entry
drm/nvd0/disp: mask off high 16 bit of negative cursor x-coordinate
drm/i915: ensure i2c adapter is all set before adding it
drm/i915: ignore eDP bpc settings from vbt
drm/i915: Fix blank panel at reopening lid
drm/nve0/fifo: add support for the flip completion swmthd
Pull two sparc fixes from David S. Miller.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Be less verbose during vmemmap population.
sparc64: do not clobber personality flags in sys_sparc64_personality()
* 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2.6:
drm/nv86/fifo: suspend fix
drm/nouveau: disable copy engine on NVAF
nouveau: fixup scanout enable in nvc0_pm
drm/nouveau/aux: mask off higher bits of auxch index in i2c table entry
drm/nvd0/disp: mask off high 16 bit of negative cursor x-coordinate
drm/nve0/fifo: add support for the flip completion swmthd
Daniel Vetter writes:
"A few important fixers:
- fix various lvds backlight issues, regressed in 3.6 (Takashi Iwai)
- make the retina mbp work (ignore bogus edp bpc value in vbt)
- fix a gmbus regression introduced in (iirc) 3.4 (Jani Nikula)
- fix an edp panel power sequence regression, fixes the new macbook air
- apply the tlb invalidate w/a
Otherwise we still have another gmbus regression (patches are awaiting
tested-bys) and there's something odd going with some rare systems not
entering rc6 often enough (and hence blowing through too much power). It
seems to be a timing-related issue and can be mitigated by frobbing the
magic tuning parameters. We're still working on that one. Also, we still
have some fallout from the hw context support, but you can only hit that
with mesa master."
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: Apply post-sync write for pipe control invalidates
drm/i915: reorder edp disabling to fix ivb MacBook Air
drm/i915: ensure i2c adapter is all set before adding it
drm/i915: ignore eDP bpc settings from vbt
drm/i915: Fix blank panel at reopening lid
On a 2-node machine with 256GB of ram we get 512 lines of
console output, which is just too much.
This mimicks Yinghai Lu's x86 commit c2b91e2eec
(x86_64/mm: check and print vmemmap allocation continuous) except that
we aren't ever going to get contiguous block pointers in between calls
so just print when the virtual address or node changes.
This decreases the output by an order of 16.
Also demote this to KERN_DEBUG.
Signed-off-by: David S. Miller <davem@davemloft.net>
When invalidating the TLBs it is documentated as requiring a post-sync
write. Failure to do so seems to result in a GPU hang.
Exposure to this hang on IVB seems to be a result of removing the extra
stalls required for SNB pipecontrol workarounds:
commit 6c6cf5aa9c
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri Jul 20 18:02:28 2012 +0100
drm/i915: Only apply the SNB pipe control w/a to gen6
Note: Manually switch the pipe_control cmd to 4 dwords to avoid a
(silent) functional conflict with -next. This way will get a loud (but
conflict with next (since the scratch_addr has been deleted there).
Reported-and-tested-by: yex.tian@intel.com
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=53322
Acked-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: added note about merge conflict with -next.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Kim, Milo