NeilBrown [Wed, 31 Mar 2010 00:21:44 +0000 (11:21 +1100)]
md/raid1: delay reads that could overtake behind-writes.
When a raid1 array is configured to support write-behind
on some devices, it normally only reads from other devices.
If all devices are write-behind (because the rest have failed)
it is possible for a read request to be serviced before a
behind-write request, which would appear as data corruption.
So when forced to read from a WriteMostly device, wait for any
write-behind to complete, and don't start any more behind-writes.
This message seems to suggest the named device is the one on which a
read failed, however it is actually the device that the read will be
redirected to.
So make the message a little clearer.
Reported-by: Tim Burgess <ozburgess@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
This is
- unnecessary because mddev_suspend is always followed by a call to
->stop, and each ->stop unregisters the thread, and
- a problem as it makes it awkwards to suspend and then resume a
device as we will want later.
md: pass mddev to make_request functions rather than request_queue
We used to pass the personality make_request function direct
to the block layer so the first argument had to be a queue.
But now we have the intermediary md_make_request so it makes
at lot more sense to pass a struct mddev_s.
It makes it possible to have an mddev without its own queue too.
This moves the call to the other side of set_readonly, but that should
not be an issue.
This encapsulates in 'md_stop' all of the functionality for internally
stopping the array, leaving all the interactions with externalities
(sysfs, request_queue, gendisk) in do_md_stop.
NeilBrown [Mon, 29 Mar 2010 02:23:10 +0000 (13:23 +1100)]
md: split md_set_readonly out of do_md_stop
Using do_md_stop to set an array to read-only is a little confusing.
Now most of the common code has been factored out, split
md_set_readonly off in to a separate function.
NeilBrown [Mon, 29 Mar 2010 01:07:53 +0000 (12:07 +1100)]
md: factor md_stop_writes out of do_md_stop.
Further refactoring of do_md_stop.
This one requires some explanation as it takes code from different
places in do_md_stop, so some re-ordering happens.
We only get into this part of do_md_stop if there are no active opens
of the device, so no writes can be happening and the device must have
been flushed. In md_stop_writes we want to stop any internal sources
of writes - i.e. resync - and flush out the metadata.
The only code that was previously before some of this code is
code to clean up the queue, the mddev, the gendisk, or sysfs, all
of which is probably better after code that makes active changes (i.e.
triggers writes).
NeilBrown [Mon, 29 Mar 2010 00:10:42 +0000 (11:10 +1100)]
md: factor do_md_run to separate accesses to ->gendisk
As part of relaxing the binding between an mddev and gendisk,
we separate do_md_run into two functions.
md_run does all the work internal to md
do_md_run calls md_run and makes and changes to gendisk
that are required.
NeilBrown [Mon, 29 Mar 2010 00:18:15 +0000 (11:18 +1100)]
md: remove ->changed and related code.
We set ->changed to 1 and call check_disk_change at the end
of md_open so that bd_invalidated would be set and thus
partition rescan would happen appropriately.
Now that we call revalidate_disk directly, which sets bd_invalidates,
that indirection is no longer needed and can be removed.
NeilBrown [Thu, 25 Mar 2010 05:20:56 +0000 (16:20 +1100)]
md: move io accounting out of personalities into md_make_request
While I generally prefer letting personalities do as much as possible,
given that we have a central md_make_request anyway we may as well use
it to simplify code.
Also this centralises knowledge of ->gendisk which will help later.
md: Relax checks on ->max_disks when external metadata handling is used.
When metadata is being managed by user-space, md doesn't know
what the maximum number of devices allowed in an array is
so ->max_disks is 0. In this case we should allow any (+ve)
number of disks.
Maciej Trela [Wed, 14 Apr 2010 06:58:16 +0000 (16:58 +1000)]
md: Correctly handle device removal via sysfs
Writing "none" to "../md/dev-xx/slot" removes that device
from being an active part of the array, but it didn't
set ->raid_disk to -1 to record this fact.
Signed-off-by: Maciej Trela <Maciej.Trela@intel.com> Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Tue, 16 Mar 2010 06:23:35 +0000 (17:23 +1100)]
md: don't use mddev->raid_disks in raid0 or raid10 while array is active.
In a subsequent patch we will make it possible to change
mddev->raid_disks while a RAID0 or RAID10 array is active. This is
part of the process of reshaping such an array.
This means that we cannot use this value while processes requests
(it is OK to use it during initialisation as we are locked against
changes then).
Both RAID0 and RAID10 have the same value stored in the private data
structure, so use that value instead.
NeilBrown [Sun, 21 Mar 2010 23:28:51 +0000 (10:28 +1100)]
md: discard StateChanged device flag.
This was needed when sysfs files could only be 'notified'
from process context. Now that we have sys_notify_direct,
we can call it directly from an interrupt.
NeilBrown [Mon, 8 Mar 2010 05:02:36 +0000 (16:02 +1100)]
md: remove some dead fields from mddev_s
These fields have never been used.
commit 4b6d287f627b5fb6a49f78f9e81649ff98c62bb7
added them, but also added identical files to bitmap_super_s,
and only used the latter.
NeilBrown [Tue, 18 May 2010 05:27:13 +0000 (15:27 +1000)]
md/raid1: fix counting of write targets.
There is a very small race window when writing to a
RAID1 such that if a device is marked faulty at exactly the wrong
time, the write-in-progress will not be sent to the device,
but the bitmap (if present) will be updated to say that
the write was sent.
Then if the device turned out to still be usable as was re-added
to the array, the bitmap-based-resync would skip resyncing that
block, possibly leading to corruption. This would only be a problem
if no further writes were issued to that area of the device (i.e.
that bitmap chunk).
md: manage redundancy group in sysfs when changing level.
Some levels expect the 'redundancy group' to be present,
others don't.
So when we change level of an array we might need to
add or remove this group.
This requires fixing up the current practice of overloading ->private
to indicate (when ->pers == NULL) that something needs to be removed.
So create a new ->to_remove to fill that role.
When changing levels, we may need to add or remove attributes. When
changing RAID5 -> RAID6, we both add and remove the same thing. It is
important to catch this and optimise it out as the removal is delayed
until a lock is released, so trying to add immediately would cause
problems.
When an array is stopped we need to remove some
sysfs files which are dependent on the type of array.
We need to delay that deletion as deleting them while holding
reconfig_mutex can lead to deadlocks.
We currently delay them until the array is completely destroyed.
However it is possible to deactivate and then reactivate the array.
It is also possible to need to remove sysfs files when changing level,
which can potentially happen several times before an array is
destroyed.
So we need to delete these files more promptly: as soon as
reconfig_mutex is dropped.
We need to ensure this happens before do_md_run can restart the array,
so we use open_mutex for some extra locking. This is not deadlock
prone.
NeilBrown [Mon, 17 May 2010 01:27:00 +0000 (11:27 +1000)]
md/linear: avoid possible oops and array stop
Since commit ef286f6fa673cd7fb367e1b145069d8dbfcc6081
it has been important that each personality clears
->private in the ->stop() function, or sets it to a
attribute group to be removed.
linear.c doesn't. This can sometimes lead to an oops,
though it doesn't always.
Dan Williams [Tue, 11 May 2010 22:25:37 +0000 (08:25 +1000)]
md: set mddev readonly flag on blkdev BLKROSET ioctl
When the user sets the block device to readwrite then the mddev should
follow suit. Otherwise, the BUG_ON in md_write_start() will be set to
trigger.
The reverse direction, setting mddev->ro to match a set readonly
request, can be ignored because the blkdev level readonly flag precludes
the need to have mddev->ro set correctly. Nevermind the fact that
setting mddev->ro to 1 may fail if the array is in use.
Cc: <stable@kernel.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: NeilBrown <neilb@suse.de>
NeilBrown [Mon, 8 Mar 2010 05:44:38 +0000 (16:44 +1100)]
md: deal with merge_bvec_fn in component devices better.
If a component device has a merge_bvec_fn then as we never call it
we must ensure we never need to. Currently this is done by setting
max_sector to 1 PAGE, however this does not stop a bio being created
with several sub-page iovecs that would violate the merge_bvec_fn.
So instead set max_segments to 1 and set the segment boundary to the
same as a page boundary to ensure there is only ever one single-page
segment of IO requested at a time.
This can particularly be an issue when 'xen' is used as it is
known to submit multiple small buffers in a single bio.
* git://git.kernel.org/pub/scm/linux/kernel/git/amit/virtio-console:
virtio: console: Use better variable names for fill_queue operation
virtio: console: Fix type of 'len' as unsigned int
Linus Torvalds [Sun, 7 Mar 2010 23:56:25 +0000 (15:56 -0800)]
Merge branch 'for-linus/i2c' of git://git.fluff.org/bjdooks/linux
* 'for-linus/i2c' of git://git.fluff.org/bjdooks/linux:
i2c: Add support for Xilinx XPS IIC Bus Interface
i2c: omap: Add support for 16-bit registers
i2c-pnx: fix setting start/stop condition
powerpc: doc/dts-bindings: update doc of FSL I2C bindings
i2c-mpc: add support for the MPC512x processors from Freescale
i2c-mpc: rename "setclock" initialization functions to "setup"
i2c-mpc: use __devinit[data] for initialization functions and data
i2c/imx: don't add probe function to the driver struct
i2c: Add support for Ux500/Nomadik I2C controller
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (26 commits)
sh: Convert sh to use read/update_persistent_clock
sh: Move PMB debugfs entry initialization to later stage
sh: Fix up flush_cache_vmap() on SMP.
sh: fix up MMU reset with variable PMB mapping sizes.
sh: establish PMB mappings for NUMA nodes.
sh: check for existing mappings for bolted PMB entries.
sh: fixed virt/phys mapping helpers for PMB.
sh: make pmb iomapping configurable.
sh: reworked dynamic PMB mapping.
sh: Fix up cpumask_of_pcibus() for the NUMA build.
serial: sh-sci: Tidy up build warnings.
sh: Fix up ctrl_read/write stragglers in migor setup.
serial: sh-sci: Add DMA support.
dmaengine: shdma: extend .device_terminate_all() to record partial transfer
sh: merge sh7722 and sh7724 DMA register definitions
sh: activate runtime PM for dmaengine on sh7722 and sh7724
dmaengine: shdma: add runtime PM support.
dmaengine: shdma: separate DMA headers.
dmaengine: shdma: convert to platform device resources
dmaengine: shdma: fix DMA error handling.
...
Linus Torvalds [Sun, 7 Mar 2010 23:45:53 +0000 (15:45 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
parisc: use __ratelimit in unaligned.c
parisc: Convert to read/update_persistent_clock
parisc: Simplify param.h by including <asm-generic/param.h>
parisc: drop unnecessary cast in __ldcw_align() macro
parisc: add strict copy size checks (v2)
parisc: remove trailing space in messages
parisc: ditto sys_accept4
parisc: wire up sys_recvmmsg
Linus Torvalds [Sun, 7 Mar 2010 23:45:35 +0000 (15:45 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
PM: Provide generic subsystem-level callbacks
PM / Runtime: Document power.runtime_auto and related functions
Cory Maccarrone [Sun, 13 Dec 2009 01:54:02 +0000 (17:54 -0800)]
i2c: omap: Add support for 16-bit registers
The current i2c-omap driver is set up for 32-bit registers, which
corresponds to most OMAP devices. However, OMAP730/850 based
devices use a 16-bit register size.
This change modifies the driver to perform a runtime CPU type check
to determine the register sizes, and uses a bit shift of either 1
or 2 bits to compute the proper register sizes for all registers.
Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Luotao Fu [Mon, 1 Mar 2010 12:24:24 +0000 (13:24 +0100)]
i2c-pnx: fix setting start/stop condition
The start/stop condtions are set in different places repetedly in the i2c-pnx
driver. Beside in i2c_pnx_start and i2c_pnx_stop the start/stop bit are also
set during the transfer of a i2c message in the master_xmit/rcv calls. This is
wrong since we can't set the start/stop condition during the transaction of a
single message any way. As a matter of fact, the driver will sometimes set both
the start and the stop bits at one time. This can be easily reproduced by
sending a simple read request like e.g
struct i2c_msg msgs[] = {
{ addr, 0, 1, buf },
{ addr, I2C_M_RD, offset, buf }
};
While processing the first message the i2c_pnx_master_xmit will set both the
start_bit and the stop_bit, which will eventually confuse the slave.
Fixed by remove setting start/stop condition from the transmit routines.
Signed-off-by: Luotao Fu <l.fu@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
powerpc: doc/dts-bindings: update doc of FSL I2C bindings
This patch adds the MPC5121 to the list of supported devices,
enhances the doc of the "clock-frequency" property and removes
the obsolete "cell-index", "device_type" and "fsl-i2c" property.
Furthermore an example for the MPC5121 has been added.
Signed-off-by: Wolfgang Grandegger <wg@denx.de> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
i2c-mpc: add support for the MPC512x processors from Freescale
As I2C interrupts must be enabled for the MPC512x by the setup function
as well, "fsl,preserve-clocking" is handled in a slighly different way.
Also, the old settings are now reported calling dev_dbg(). For the
MPC512x the clock setup function of the MPC52xx can be re-used.
Furthermore, the Kconfig help has been updated and corrected.
Signed-off-by: Wolfgang Grandegger <wg@denx.de> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
i2c-mpc: rename "setclock" initialization functions to "setup"
To prepare support for the MPC512x processors from Freescale the
"setclock" initialization functions have been renamed to "setup"
because I2C interrupts must be enabled for the MPC512x by this
function as well.
Signed-off-by: Wolfgang Grandegger <wg@denx.de> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
i2c-mpc: use __devinit[data] for initialization functions and data
"__devinit[data]" has not yet been used for all initialization functions
and data. To avoid truncating lines, the struct "mpc_i2c_match_data" has
been renamed to "mpc_i2c_data", which is even the better name.
Signed-off-by: Wolfgang Grandegger <wg@denx.de> Tested-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
i2c/imx: don't add probe function to the driver struct
Having a pointer to the probe function is unnecessary when using
platform_driver_probe and yields a section mismatch warning after
removing the white list entry "*driver" for
{ .data$, .data.rel$ } -> { .init.* } mismatches in modpost.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Randy Dunlap [Fri, 5 Mar 2010 17:43:06 +0000 (09:43 -0800)]
mfd: Fix lpc_sch related depends/selects, fix build error
LPC_SCH is selected by GPI_SCH and I2C_ISCH, even when PCI is not
enabled, but LPC_SCH depends on PCI, so make GPI_SCH and I2C_ISCH
also depend on PCI.
Those 2 selects also need to select what LPC_SCH selects,
since kconfig does not follow selects.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Denis Turischev <denis@compulab.co.il> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Mark Brown [Tue, 23 Feb 2010 11:08:06 +0000 (11:08 +0000)]
mfd: Use completion interrupt for WM831x AUXADC
Use the completion interrupt generated by the device rather than
polling for conversions to complete. As a backup we still check
the status of the AUXADC if we don't get a completion, mostly for
systems that don't have the WM831x interrupt infrastructure hooked
up.
Also reduce the timeout for completion of conversions to 5ms from
the previous 10ms, the lower timeout should be sufficient.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Mark Brown [Tue, 23 Feb 2010 11:08:05 +0000 (11:08 +0000)]
mfd: Use completion interrupt for WM835x AUXADC
Use the completion interrupt generated by the device rather than
polling for conversions to complete. As a backup we still check
the state of the AUXADC if we don't get a completion, mostly for
systems that don't have the WM8350 interrupt infrastructure hooked
up.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Mike Turquette [Mon, 22 Feb 2010 17:16:30 +0000 (11:16 -0600)]
mfd: Introduce remove_script function for twl4030
New function twl4030_remove_script(u8 flags) takes a script type as
defined in twl.h and prevents any script already loaded in that position
from running. This is accomplished by programming SEQ_ADD_* to 0x3f,
the END_OF_SCRIPT value, where SEQ_ADD_* is determined by flags.
(Future) users of this function include OMAP board files for machines
facing a race condition between sleep and warm reset.
Signed-off-by: Mike Turquette <mturquette@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Mark Brown [Wed, 17 Feb 2010 18:45:26 +0000 (18:45 +0000)]
gpiolib: Force wm831x GPIOs into GPIO mode when requested
This is the chip default but it's possible the bootloader or OTP
will have been configured to a different mode (eg, to provide
feedback during startup).
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Mark Brown [Wed, 17 Feb 2010 18:45:25 +0000 (18:45 +0000)]
mfd: Add WM831x revision B support
Revision B of the WM831x devices changes the sense of the tristate
bit for GPIO configuration, inverting it to become an enable instead.
Take account of this in the gpiolib driver.
A current sink regulation status bit has also been added in revision B,
add a flag indicating if it's present but don't use it yet.
This revision also adds an interrupt on key up for the ON pin event
which the existing code is able to take advantage of.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Magnus Damm [Wed, 17 Feb 2010 07:38:14 +0000 (16:38 +0900)]
tmio_mmc: Remove const from platform data V3
Remove const from the tmio-mmc platform data hclk V3.
This change makes it possible to remove the type cast
from the sh_mobile_sdhi driver which is using the clock
framework to get the clock rate.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Magnus Damm [Wed, 17 Feb 2010 07:38:04 +0000 (16:38 +0900)]
tmio_mmc: Use 100ms mmc_detect_change() delay
This patch changes the tmio_mmc driver to wait 100ms
before checking the card detect status. This type of
delay is quite common among mmc drivers, it seems that
most hardware platforms need to give the hardware some
time to settle before checking card availabilty.
Hotplug is half-broken without this patch on the sh7724
Ecovec board. Hot insertion seems ok but eject is never
detected without this patch.
Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Yusuke Goda [Wed, 17 Feb 2010 07:37:55 +0000 (16:37 +0900)]
tmio_mmc: Add MMC_CAP_MMC_HIGHSPEED support V2
Enable MMC_CAP_XX support in the tmio_mmc driver if
pdata->capabilities is set.
Signed-off-by: Yusuke Goda <goda.yusuke@renesas.com> Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
On SuperH platforms the SDHI controller does not produce any command IRQs after
a completed IO. This leads to card-detect interrupts staying disabled. Do not
disable card-detect interrupts on DATA IRQs.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This patch disables TWL4030/5030 I2C1 adn I2C4(SR) internal pull-up, to
use only the external HW resistor >=470 Ohm for the assured
functionality in HS mode.
While testing the I2C in High Speed mode, it was discovered that
without a proper pull-up resistor, there is data corruption during
multi-byte transfer. RTC(time_set) test case was used for testing.
From the analysis done, it was concluded that ideally we need a
pull-up of 1.6k Ohm(recomended) or atleast 470 Ohm or greater for
assured performance in HS mode.
Signed-off-by: Moiz Sonasath <m-sonasath@ti.com> Signed-off-by: Allen Pais <allen.pais@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Denis Turischev [Fri, 19 Feb 2010 10:26:25 +0000 (11:26 +0100)]
mfd: Introduce lpc_sch for Intel SCH LPC bridge
Intel Poulsbo (SCH) chipset LPC bridge controller contains several
functions. Creating and MFD driver for the LPC bridge controller allows
simultaneous use of SMBus and GPIO interfaces on the SCH.
Signed-off-by: Denis Turischev <denis@compulab.co.il> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Haojian Zhuang [Mon, 8 Feb 2010 10:02:00 +0000 (05:02 -0500)]
mfd: Use genirq in 88pm860x
Use genirq to simplify IRQ handling in 88pm860x. Remove the interface of
mask/free IRQs on 88pm860x. All these work is taken by genirq. Update the
touchscreen driver of 88pm860x since IRQ handling is changed.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Joonyoung Shim [Sun, 7 Feb 2010 01:16:14 +0000 (10:16 +0900)]
mfd: Fix WM8994 error handling
This patch fixes wrong goto statement for error handling on probe.
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Haojian Zhuang [Fri, 5 Feb 2010 15:07:54 +0000 (16:07 +0100)]
mfd: Update irq handler in max8925
Update thread irq handler. Simply the interface of using thread irq.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Mark Brown [Fri, 29 Jan 2010 18:20:29 +0000 (18:20 +0000)]
mfd: Add initial WM8994 support
The WM8994 is a highly integrated ultra low power audio hub CODEC.
Since it includes on-board regulators and GPIOs it is represented
as a multi-function device, though the overwhelming majority of
the functionality is provided by the ASoC CODEC driver.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Randy Dunlap [Thu, 21 Jan 2010 03:55:34 +0000 (19:55 -0800)]
mfd: htc-i2cpld depends on GPIOLIB
htc-i2cpld should depend on GPIOLIB, otherwise there are many
build errors:
drivers/mfd/htc-i2cpld.c:50: error: field 'chip_out' has incomplete type
drivers/mfd/htc-i2cpld.c:54: error: field 'chip_in' has incomplete type
drivers/mfd/htc-i2cpld.c:243: warning: type defaults to 'int' in declaration of '__mptr'
drivers/mfd/htc-i2cpld.c:243: warning: initialization from incompatible pointer type
drivers/mfd/htc-i2cpld.c:278: warning: type defaults to 'int' in declaration of '__mptr'
drivers/mfd/htc-i2cpld.c:278: warning: initialization from incompatible pointer type
drivers/mfd/htc-i2cpld.c:282: warning: type defaults to 'int' in declaration of '__mptr'
drivers/mfd/htc-i2cpld.c:282: warning: initialization from incompatible pointer type
drivers/mfd/htc-i2cpld.c:315: error: dereferencing pointer to incomplete type
drivers/mfd/htc-i2cpld.c:322: warning: type defaults to 'int' in declaration of '__mptr'
drivers/mfd/htc-i2cpld.c:322: warning: initialization from incompatible pointer type
drivers/mfd/htc-i2cpld.c:467+: error: dereferencing pointer to incomplete type [19X]
drivers/mfd/htc-i2cpld.c:490: error: implicit declaration of function 'gpiochip_add'
drivers/mfd/htc-i2cpld.c:504: error: implicit declaration of function 'gpiochip_remove'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Christoph Egger [Fri, 15 Jan 2010 14:33:46 +0000 (15:33 +0100)]
mfd: Remove leftover from discontinued TWL4030 battery patch
The TWL4030_BCI_BATTERY config option originates from a patch to the
omap git tree. However inclusion in linux was seemingly rejected and
the functionality nears inclusion under a different name so this
removes the bits of the old version that made it into the mainline
kernel again.
Signed-off-by: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Linus Walleij [Sun, 17 Jan 2010 19:57:43 +0000 (20:57 +0100)]
mfd: Fix debugfs code in AB3100 OTP driver
This fixes the aged and unreachable debugfs code in the AB3100
OTP driver so that it's (A) reachable and (B) works. Bug detected
in parallell by Christoph Egger using VAMOS and Robert P. J. Day
by his kernel scanning script.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Cc: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de> Cc: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Linus Walleij [Tue, 19 Jan 2010 10:41:52 +0000 (11:41 +0100)]
mfd: Use AB3100 MFD core IRQ for interrupt randomness
This reintroduces the entropy sampling of the AB3100 IRQ as the
IRQF_SAMPLE_RANDOM is going out according to the feature removal
schedule. I'm trying to do this the right way then, so CC:ing some
random people for a quick review. We add entropy for interrupt
events in the AB3100 which are truly random in nature, like
external cables being connected, voltages on batteries dropping
below certain ranges, ADC triggers or overheating.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Cc: Robin Getz <rgetz@blackfin.uclinux.org> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Cory Maccarrone [Tue, 19 Jan 2010 10:22:45 +0000 (11:22 +0100)]
mfd: Add HTCPLD driver
This change introduces a driver for the HTC PLD chip found
on some smartphones, such as the HTC Wizard and HTC Herald.
It works through the I2C bus and acts as a GPIO extender.
Specifically:
* it can have several sub-devices, each with its own I2C
address
* Each sub-device provides 8 output and 8 input pins
* The chip attaches to one GPIO to signal when any of the
input GPIOs change -- at which point all chips must be
scanned for changes
This driver implements the GPIOs throught the kernel's
GPIO and IRQ framework. This allows any GPIO-servicing
drivers to operate on htcpld pins, such as the gpio-keys
and gpio-leds drivers.
Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Haojian Zhuang [Mon, 11 Jan 2010 12:10:08 +0000 (13:10 +0100)]
regulator: Add max8925 support
MAX8925 contains 3 Buck and 20 LDO regulator.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
projects / linux-beck.git / log