J Keerthy [Wed, 19 Jun 2013 05:57:47 +0000 (11:27 +0530)]
mfd: palmas: Check if irq is valid
Check if irq value obtained is valid. If it is not valid
then skip the irq request step and go ahead with the probe.
Signed-off-by: J Keerthy <j-keerthy@ti.com> Reviewed-by: Mark Brown <broonie@linaro.org> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Graeme Gregory [Wed, 19 Jun 2013 12:24:02 +0000 (15:24 +0300)]
mfd: twl-core: Change TWL6025 references to TWL6032
The TWL6025 was never released beyond sample form and was replaced by
the PhoenixLite range of chips - TWL6032. Change the references to
reference the TWL6032 class and name the registers to twl6032 in line with
an actual released chip name to avoid confusion.
Currently there are no users of TWL6025 in the code.
Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk> Signed-off-by: Oleksandr Kozaruk <oleksandr.kozaruk@ti.com> Acked-by: Lee Jones <lee.jones@linaro.org> Reviwed-by: Mark Brown <broonie@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Sachin Kamat [Tue, 18 Jun 2013 10:05:39 +0000 (15:35 +0530)]
mfd: davinci_voicecodec: Fix build breakage
Include the missing header file to fix the following build error:
drivers/mfd/davinci_voicecodec.c: In function ‘davinci_vc_probe’:
drivers/mfd/davinci_voicecodec.c:86:3: error: implicit declaration of function
‘io_v2p’ [-Werror=implicit-function-declaration]
(dma_addr_t)(io_v2p(davinci_vc->base) + DAVINCI_VC_WFIFO);
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Pawel Moll [Tue, 11 Jun 2013 10:56:02 +0000 (11:56 +0100)]
mfd: vexpress: Make the driver optional for arm and arm64
The driver can be used on either arm or arm64 platforms, but
the latter doesn't have any platform-specific configuration
options, so it must be possible to manually enable the driver.
As the gpiolib is optional for arm64 arch, the gpio/led code
must be compiled conditionally.
Wei Yongjun [Wed, 19 Jun 2013 02:47:06 +0000 (10:47 +0800)]
mfd: htc-egpio: Use devm_ioremap_nocache() instead of ioremap_nocache()
Replace probe-time ioremap_nocache() call with devm_ioremap_nocache()
to avoid iounmap() missing and get rid of the corresponding iounmap()
call on remove.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Florian Vaussard [Tue, 18 Jun 2013 13:17:58 +0000 (15:17 +0200)]
mfd: twl4030-power: Start transition to DT
Support for loading twl4030-power module via devicetree.
For now, when booting with a DT, only the poweroff callback
feature is supported through the ti,use_poweroff property.
Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Florian Vaussard [Tue, 18 Jun 2013 13:17:56 +0000 (15:17 +0200)]
mfd: twl4030-power: Split from twl-core into a dedicated module
For now, the call to twl4030-power is hard-wired inside twl-core.
To ease the future transition to DT, make twl4030-power as a
separate module, like what is already done for twl4030-audio
and others.
Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Stephen Boyd [Mon, 3 Jun 2013 19:39:44 +0000 (12:39 -0700)]
mfd: ssbi: Use devm_* and simplify code
Use devm_ioremap_resource and devm_kzalloc to simplify error
paths and reduce lines of code. Also use dev_err() to keep
consistency and drop the .remove function because the devm
functions take care of what it's doing besides the now obsolete
platform_set_drvdata() which we can just drop. Finally, use
module_platform_driver() to save some more lines.
Cc: David Brown <davidb@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Kevin Hilman [Fri, 31 May 2013 21:44:54 +0000 (14:44 -0700)]
mfd: twl4030: Allow IRQ wake enable to succeed on subchip IRQs
The genirq IRQ wake method will default to failure if the irq_chip
does not provide a set_wake method. However, for TWL4030 sub-chip
IRQs, we want the wake enable to succeed even though we don't provide
a set_wake method. This allows sub-chip IRQs to still be flagged as
wakeup capable, and allow them to wakeup from suspend (or abort
suspend if they fire during suspend.)
To fix, use the IRQCHIP_SKIP_SET_WAKE flag in the irq_chip.
Signed-off-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Chao Xie [Fri, 14 Jun 2013 05:21:51 +0000 (01:21 -0400)]
mfd: 88pm80x: Change chip id definition and detection
Change the chip id definition and detection and then:
1. We no longer need to add PM800_CHIP_XXX for the coming revision.
2. We no longer need to pass driver_data in i2c_device_id as we
can distinguish the chips from the CHIP_ID register.
Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Chao Xie [Fri, 14 Jun 2013 05:21:50 +0000 (01:21 -0400)]
mfd: 88pm800: Enhance error handling for sub pages probe/remove
pm800_pages_init and pm800_pages_exit are called by pm800_probe.
Change the code to enhance error handling and remove unused code at
pm800_pages_init/exit and pm800_probe.
Signed-off-by: Yi Zhang <yizhang@marvell.com> Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Chao Xie [Fri, 14 Jun 2013 05:21:49 +0000 (01:21 -0400)]
mfd: 88pm800: Remove the power and gpadc page addr from platform data
88pm800 has two addtional pages - power and gpadc.
The address of the pages depends on the address of 88pm800.
So do not need pass the address of the power and gpadc in
platform data.
Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Yi Zhang [Fri, 14 Jun 2013 05:21:48 +0000 (01:21 -0400)]
mfd: 88pm800: 88pm805: Remove "IRQF_TRIGGER_FALLING" flag
88pm800/88pm805 interrupt is asserted low if the events happened.
So remove IRQF_TRIGGER_FALLING for irq request.
Also, the interrupt wiring is board dependent so do not set
IRQF_TRIGGER by default.
Signed-off-by: Yi Zhang <yizhang@marvell.com> Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Yi Zhang [Fri, 14 Jun 2013 05:21:45 +0000 (01:21 -0400)]
mfd: 88pm800: Fix NULL pointer dereference
Move "device_800_init" to fix NULL pointer error when
calling "device_gpadc_init" as it needs "subchip->regmap_gpadc"
to set registers via regmap interface
Signed-off-by: Yi Zhang <yizhang@marvell.com> Signed-off-by: Chao Xie <chao.xie@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Charles Keepax [Thu, 13 Jun 2013 08:43:29 +0000 (09:43 +0100)]
mfd: arizona: Integrate wm8997 into Arizona mfd
The wm8997 is a compact, high-performance audio hub CODEC with SLIMbus
interfacing, for smartphones, tablets and other portable audio devices
based on the Arizona platform.
This patch integrates the wm8997 into the Arizona mfd.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Mark Brown [Fri, 17 May 2013 12:25:21 +0000 (13:25 +0100)]
mfd: wm8994: Reset device during probe
Ensure that the device is in a known good state. This should have little
practical impact as the runtime PM will reset the device shortly after
probe but it's neater.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Samuel Ortiz [Thu, 13 Jun 2013 10:14:59 +0000 (12:14 +0200)]
Merge tag 'am335x_tsc-adc' of git://breakpoint.cc/bigeasy/linux
A complete refurbished series inclunding:
- DT support for the MFD, TSC and ADC driver & platform device support,
which has no users, has been killed.
- iio_map from last series is gone and replaced by proper nodes in the
device tree.
- suspend fixes which means correct data structs are taken and no
interrupt storm
- fifo split which should problem with TSC & ADC beeing used at the same
time
- The ADC channels are now checked before blindly applied. That means the
touch part reads X, Y and Z coordinates and does not mix them up. Same
goes for the IIO ADC driver.
- The IIO ADC driver now creates files named in_voltageX_raw where X
represents the ADC line instead of a number starting at 0. A read from
this file can return -EBUSY in case touch is busy and the ADC didn't
collect a value.
Lee Jones [Fri, 7 Jun 2013 15:07:47 +0000 (16:07 +0100)]
mfd: ab8500-core: Add AB8500 external regulators as MFD devices
The AB8500 external regulator driver is now a device in its own right,
so it requires registering and probing in the normal way. This patch
will ensure the driver is probed once registered for all devices which
support them.
Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Jingoo Han [Tue, 4 Jun 2013 04:11:50 +0000 (13:11 +0900)]
mfd: Replace strict_strtoul() with kstrtoul() in ab* and att*
The usage of strict_strtoul() is not preferred, because
strict_strtoul() is obsolete. Thus, kstrtoul() should be
used.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Usually we get all the values we wanted but it is possible, that te ADC
unit is busy performing the conversation for the HW events. In that case
-EBUSY is returned and the user may re-call the function.
Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
The TSC part allows to specify the input lines. The IIO part assumes
that it usues always the last few, that means if IIO has adc-channels
set to 2 it will use channel 6 and 7. However it might make sense to use
only 6.
This patch changes the device property (which was introduced recently
and was never in an official release) in a way that the user can specify
which of the AIN lines should be used. In Addition to this, the name is
now AINx where x is the channel number i.e. for AIN6 we would have 6.
Prior this, it always started counting at 0 which is confusing. In
addition to this, it also checks for correct step number during reading
and does not rely on proper FIFO depth.
Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
input: ti_am335x_tsc: return IRQ_NONE if there was no IRQ for us
The previous patch ("input/ti_am335x_tsc: ACK the HW_PEN irq in ISR")
acked the interrupt so we don't freeze if we don't handle an enabled
interrupt source. The interrupt core has a mechanism for this and to get
it work one should only say that it handled an interrupt if it is
actually the case.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
The interrupt source IRQENB_HW_PEN is enabled in suspend and suposed to
be used as a wake up source. Once this interrupt source is unmaksed, the
devices ends up in ISR and never continues.
This change ACKs the interrupt and disables it so the system does not
freeze.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
input: ti_am335x_adc: use only FIFO0 and clean up a little
The driver programs a threshold of "coordinate_readouts" say 5. The
REG_FIFO0THR registers says it should it be programmed to "threshold
minus one". The driver does not expect just 5 coordinates but 5 * 2 + 2.
Multiplied by two because 5 for X and 5 for Y and plus 2 because we have
two Z.
The whole thing kind of works because It reads the 5 coordinates for X
and Y from FIFO0 and FIFO1 and the last element in each FIFO is ignored
within the loop and read later.
Nothing guaranties that FIFO1 is ready by the time it is read. In fact I
could see that that FIFO1 reaturns for Y channels 8,9, 10, 12, 6 and for
Y channel 7 for Z. The problem is that channel 7 and channel 12 got
somehow mixed up.
The other Problem is that FIFO1 is also used by the IIO part leading to
wrong results if both (tsc & adc) are used.
The patch tries to clean up the whole thing a little:
- Remove the +1 and -1 in REG_STEPCONFIG, REG_STEPDELAY and its counter
part in the for loop. This is just confusing.
- Use only FIFO0 in TSC. The fifo has space for 64 entries so should be
fine.
- Read the whole FIFO in one function and check the channel.
- in case we dawdle around, make sure we only read a multiple of our
coordinate set. On the second interrupt we will cleanup the remaining
enties.
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Fix the mfd device in the case where a subdevice might not be activated.
Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
iio: ti_tscadc: provide datasheet_name and scan_type
This patch provides the members "datasheet_name" and scan_type. This is
the remaining part of the earlier patch where I (bigeasy) removed iio_map
because it is now supplied by the device tree. It also static names as
suggested by Jonathan.
Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Patil, Rachna [Thu, 24 Jan 2013 03:45:10 +0000 (03:45 +0000)]
input: ti_am33x_tsc: Add DT support
This patch adds DT support to touch driver. It also provides a binding
document which is used by the MFD and IIO part of the device.
This patch also renames steps_to_configure to coordinate_readouts
because the original name misleads the purpose of the variable.
Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com> Signed-off-by: Patil, Rachna <rachna@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Patil, Rachna [Thu, 24 Jan 2013 03:45:07 +0000 (03:45 +0000)]
input: ti_am33x_tsc: remove unwanted fifo flush
When touchscreen and ADC are used together, this
unwanted fifo flush leads to loss of ADC data.
Signed-off-by: Patil, Rachna <rachna@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Patil, Rachna [Thu, 24 Jan 2013 03:45:06 +0000 (03:45 +0000)]
input: ti_am33x_tsc: Order of TSC wires, made configurable
The current driver expected touchscreen input
wires(XP,XN,YP,YN) to be connected in a particular order.
Making changes to accept this as platform data.
Sebastian reworked the original patch and removed a lot of the not
required pieces.
Signed-off-by: Patil, Rachna <rachna@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Patil, Rachna [Thu, 24 Jan 2013 03:45:05 +0000 (03:45 +0000)]
input: ti_am33x_tsc: Step enable bits made configurable
Current code has hard coded value written to
step enable bits. Now the bits are updated based
on how many steps are needed to be configured got
from platform data.
The user needs to take care not to exceed
the count more than 16. While using ADC and TSC
one should take care to set this parameter correctly.
Sebastian added the common lock and moved the code, that manipulates the
steps, from into the mfd module.
Signed-off-by: Patil, Rachna <rachna@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
mfd: input: iio: ti_am335x_adc: use one structure for ti_tscadc_dev
The mfd driver creates platform data for the child devices and it is the
ti_tscadc_dev struct. This struct is copied for the two devices.
The copy of the structure makes a common lock in this structure a little
less usefull. Therefore the platform data is not a pointer to the
structure and the same structure is used.
While doing the change I noticed that the suspend/resume code assumes
the wrong pointer for ti_tscadc_dev and this has been fixed as well.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
mfd: jz4740-adc: Use clk_prepare_enable/clk_disable_unprepare
In preparation to switching the jz4740 clk driver to the common clk framework
update the clk enable/disable calls to clk_prepare_enable/clk_disable_unprepare.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Mark Brown [Mon, 6 May 2013 15:12:56 +0000 (16:12 +0100)]
mfd: wm8994: Emulate level triggered interrupts if required
The interrupt controller on the wm8994 series of devices requires a level
triggered parent. If one is not available but a GPIO is available for the
interrupt then emulate.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The driver core clears the driver data to NULL after device_release
or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound).
Thus, it is not needed to manually clear the device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Shift TWL initialization to module/device init layer, because I2C now is
not initialized on subsys init layer and shifted to module/device init
layer instead.
The I2C <--> TWL dependency should be resolved in drivers/Makefile now.
There is no reason for ssbi to have its own top-level driver directory
when the only users of this interface are all MFD drivers. The only
mainline driver using it at the moment (PM8921) is marked broken and in
fact does not compile. I have verified that fixing the trivial build
breakage in pm8921 links in the new ssbi code just fine, but that
can be a separate patch.
Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: David Brown <davidb@codeaurora.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Linus Torvalds [Sat, 8 Jun 2013 22:51:21 +0000 (15:51 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
- Trivial: unused variable removal
- Posix-timers: Add the clock ID to the new proc interface to make it
useful. The interface is new and should be functional when we reach
the final 3.10 release.
- Cure a false positive warning in the tick code introduced by the
overhaul in 3.10
- Fix for a persistent clock detection regression introduced in this
cycle
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timekeeping: Correct run-time detection of persistent_clock.
ntp: Remove unused variable flags in __hardpps
posix-timers: Show clock ID in proc file
tick: Cure broadcast false positive pending bit warning
Linus Torvalds [Sat, 8 Jun 2013 22:50:42 +0000 (15:50 -0700)]
Merge tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux
Pull irqdomain bug fixes from Grant Likely:
"This branch contains a set of straight forward bug fixes to the
irqdomain code and to a couple of drivers that make use of it."
* tag 'irqdomain-for-linus' of git://git.secretlab.ca/git/linux:
irqchip: Return -EPERM for reserved IRQs
irqdomain: document the simple domain first_irq
kernel/irq/irqdomain.c: before use 'irq_data', need check it whether valid.
irqdomain: export irq_domain_add_simple
Grant Likely [Thu, 6 Jun 2013 13:11:38 +0000 (14:11 +0100)]
irqchip: Return -EPERM for reserved IRQs
The irqdomain core will report a log message for any attempted map call
that fails unless the error code is -EPERM. This patch changes the
Versatile irq controller drivers to use -EPERM because it is normal for
a subset of the IRQ inputs to be marked as reserved on the various
Versatile platforms.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
projects / linux-beck.git / log