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2009-12-22PM / Runtime: Use device type and device class callbacksRafael J. Wysocki
The power management of some devices is handled through device types and device classes rather than through bus types. Since these devices may also benefit from using the run-time power management core, extend it so that the device type and device class run-time PM callbacks can be taken into consideration by it if the bus type callback is not defined. Update the run-time PM core documentation to reflect this change. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-12-21PM: Use pm_runtime_put_sync in system resumeAlan Stern
This patch (as1317) fixes a bug in the PM core. When a device is resumed following a system sleep, the core decrements the device's runtime PM usage counter but doesn't issue an idle notification if the counter reaches 0. This could prevent an otherwise unused device from being runtime-suspended again after the system sleep. The fix is to call pm_runtime_put_sync() instead of pm_runtime_put_noidle(). Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-12-18PM: Measure device suspend and resume timesRafael J. Wysocki
Measure and print the time of suspending and resuming all devices. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-12-18PM: Make the initcall_debug style timing for suspend/resume completeRafael J. Wysocki
Commit f2511774863487e61b56a97da07ebf8dd61d7836 (PM: Add initcall_debug style timing for suspend/resume) introduced basic timing instrumentation, needed for a scritps/bootgraph.pl equivalent or humans, but it missed the fact that bus types and device classes which haven't been switched to using struct dev_pm_ops objects yet need special handling. As a result, the suspend/resume timing information is only available for devices whose bus types or device classes use struct dev_pm_ops objects, so the majority of devices is not covered. Fix this by adding basic suspend/resume timing instrumentation for devices whose bus types and device classes still don't use struct dev_pm_ops objects for power management. To reduce code duplication move the timing code to helper functions. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2009-12-17Merge branch 'master' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: kill I_LOCK fold do_sync_file_range into sys_sync_file_range fix up O_SYNC comments VFS/fsstack: handle 32-bit smp + preempt + large files in fsstack_copy_inode_size fsstack/ecryptfs: remove unused get_nlinks param to fsstack_copy_attr_all vfs: remove extraneous NULL d_inode check from do_filp_open fs: no games with DCACHE_UNHASHED fs: anon_inodes implement dname dio: fix use-after-free
2009-12-17Merge branch 'for-linus' of git://gitserver.sunplusct.com/linux-2.6-scoreLinus Torvalds
* 'for-linus' of git://gitserver.sunplusct.com/linux-2.6-score: score: include asm-generic/param.h in asm/delay.h. score: fixed pfn_valid define. score: add flush_dcahce_page and PG_dcache_dirty define
2009-12-17Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: (27 commits) regulator: wm831x_reg_read() failure unnoticed in wm831x_aldo_get_mode() twl-regulator: Fix reg_disable functionality for 4030 and 6030 twl-regulator: Add turnon delay to reg_enable twl-regulator: Restore REMAP configuration in regulator probe twl-regulator: Add turnon-delay and REMAP config to twlreg_info struct twl-regulator: Define critical regulators as always_on twl-regulator: Add all twl4030 regulators to twlreg_info regulator: mc13783-regulator: correct the probing time. regulator: Fix unbalanced disables/enables in regulator_bulk_{enable,disable} error path regulator: core.c: Small coding style cleanup (indentation fixup) drivers/regulator: use PTR_ERR to get error code regulator: consumer.h - fix build when consumer.h is #included first. regulator/mc13783: various cleanups regulator/mc13783: rename source file to match other drivers Fix some AB3100 regulator issues regulator: keep index within bounds in da9034_get_ldo12_voltage() regulator: Ensure val is initialised in 88pm8607 choose_voltage() regulator: Remove duplicate consts from ab3100 regulator: Handle regulators without suspend mode configuration regulator: Factor out regulator name pretty printing ...
2009-12-17kill I_LOCKChristoph Hellwig
After I_SYNC was split from I_LOCK the leftover is always used together with I_NEW and thus superflous. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-12-17fold do_sync_file_range into sys_sync_file_rangeChristoph Hellwig
We recently go rid of all callers of do_sync_file_range as they're better served with vfs_fsync or the filemap_write_and_wait. Now that do_sync_file_range is down to a single caller fold it into it so that people don't start using it again accidentally. While at it also switch it from using __filemap_fdatawrite_range(..., WB_SYNC_ALL) to the more clear filemap_fdatawrite_range(). Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-12-17fix up O_SYNC commentsChristoph Hellwig
Proper Posix O_SYNC handling only made it into 2.6.33, not 2.6.32. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-12-17VFS/fsstack: handle 32-bit smp + preempt + large files in ↵Erez Zadok
fsstack_copy_inode_size Copy the inode size and blocks from one inode to another correctly on 32-bit systems with CONFIG_SMP, CONFIG_PREEMPT, or CONFIG_LBDAF. Use proper inode spinlocks only when i_size/i_blocks cannot fit in one 32-bit word. Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-12-17fsstack/ecryptfs: remove unused get_nlinks param to fsstack_copy_attr_allErez Zadok
This get_nlinks parameter was never used by the only mainline user, ecryptfs; and it has never been used by unionfs or wrapfs either. Acked-by: Dustin Kirkland <kirkland@canonical.com> Acked-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-12-17vfs: remove extraneous NULL d_inode check from do_filp_openJeff Layton
We can't get to this point unless it's a valid pointer. Signed-off-by: Jeff Layton <jlayton@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-12-17fs: no games with DCACHE_UNHASHEDNick Piggin
Filesystems outside the regular namespace do not have to clear DCACHE_UNHASHED in order to have a working /proc/$pid/fd/XXX. Nothing in proc prevents the fd link from being used if its dentry is not in the hash. Also, it does not get put into the dcache hash if DCACHE_UNHASHED is clear; that depends on the filesystem calling d_add or d_rehash. So delete the misleading comments and needless code. Acked-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-12-17fs: anon_inodes implement dnameNick Piggin
Add a d_dname method for anon_inodes filesystem, the same way pipefs and sockfs pseudo filesystems. This allows us to remove the DCACHE_UNHASHED hack from anon_inodes.c (see next patch). [AV: inumber is useless here, dropped from anon_inodefs_dname()] Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Miklos Szeredi <mszeredi@suse.cz> Cc: Davide Libenzi <davidel@xmailserver.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-12-17Merge branch 'for-33' of git://repo.or.cz/linux-kbuildLinus Torvalds
* 'for-33' of git://repo.or.cz/linux-kbuild: (29 commits) net: fix for utsrelease.h moving to generated gen_init_cpio: fixed fwrite warning kbuild: fix make clean after mismerge kbuild: generate modules.builtin genksyms: properly consider EXPORT_UNUSED_SYMBOL{,_GPL}() score: add asm/asm-offsets.h wrapper unifdef: update to upstream revision 1.190 kbuild: specify absolute paths for cscope kbuild: create include/generated in silentoldconfig scripts/package: deb-pkg: use fakeroot if available scripts/package: add KBUILD_PKG_ROOTCMD variable scripts/package: tar-pkg: use tar --owner=root Kbuild: clean up marker net: add net_tstamp.h to headers_install kbuild: move utsrelease.h to include/generated kbuild: move autoconf.h to include/generated drop explicit include of autoconf.h kbuild: move compile.h to include/generated kbuild: drop include/asm kbuild: do not check for include/asm-$ARCH ... Fixed non-conflicting clean merge of modpost.c as per comments from Stephen Rothwell (modpost.c had grown an include of linux/autoconf.h that needed to be changed to generated/autoconf.h)
2009-12-17Revert "fbdev: atafb - add palette register check"Geert Uytterhoeven
This reverts commit 8546e3ce6e37c359979b69862442f94e0ef0e03b, as it's a partial duplicate of commit 2f390380ca69e1617cdddb12d8da94f0a9f4319d ("fbdev: add palette register check to several drivers"). The former went in first through the m68k tree, the latter through Andrew Morton. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-17x86/ptrace: make genregs[32]_get/set more robustLinus Torvalds
The loop condition is fragile: we compare an unsigned value to zero, and then decrement it by something larger than one in the loop. All the callers should be passing in appropriately aligned buffer lengths, but it's better to just not rely on it, and have some appropriate defensive loop limits. Acked-by: Roland McGrath <roland@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-17score: include asm-generic/param.h in asm/delay.h.Chen Liqin
Signed-off-by: Cui Bixiong <bixiong@sunnorth.com.cn> Signed-off-by: Chen Liqin <liqin.chen@sunplusct.com>
2009-12-17score: fixed pfn_valid define.Chen Liqin
Signed-off-by: Cui Bixiong <bixiong@sunnorth.com.cn> Signed-off-by: Chen Liqin <liqin.chen@sunplusct.com> modified: arch/score/include/asm/page.h modified: arch/score/kernel/setup.c modified: arch/score/mm/init.c
2009-12-17score: add flush_dcahce_page and PG_dcache_dirty defineChen Liqin
Signed-off-by: Cui Bixiong <bixiong@sunnorth.com.cn> Signed-off-by: Chen Liqin <liqin.chen@sunplusct.com> modified: arch/score/include/asm/cacheflush.h modified: arch/score/mm/cache.c
2009-12-17regulator: wm831x_reg_read() failure unnoticed in wm831x_aldo_get_mode()Roel Kluin
ret should be signed to notice a failure in wm831x_reg_read(). Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17twl-regulator: Fix reg_disable functionality for 4030 and 6030Juha Keski-Saari
This change makes sure all regulator group assignments are cleared on disable call Signed-off-by: Juha Keski-Saari <ext-juha.1.keski-saari@nokia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17twl-regulator: Add turnon delay to reg_enableJuha Keski-Saari
This change implements a basic turnon delay in the regulator enable function to make it less probable that reg_enable returns before the regulator output is at target level Signed-off-by: Juha Keski-Saari <ext-juha.1.keski-saari@nokia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17twl-regulator: Restore REMAP configuration in regulator probeJuha Keski-Saari
This change ensures the regulator REMAP register configuration is in a known state so state transitions will function as intended regardless of possible bootloader effects on it Signed-off-by: Juha Keski-Saari <ext-juha.1.keski-saari@nokia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17twl-regulator: Add turnon-delay and REMAP config to twlreg_info structJuha Keski-Saari
This change includes regulator turnon delay values and the REMAP reset configuration to the twlreg_info struct, since they are basic attributes of every TWL regulator Signed-off-by: Juha Keski-Saari <ext-juha.1.keski-saari@nokia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17twl-regulator: Define critical regulators as always_onJuha Keski-Saari
Defines VIO, VDD1, VDD2, VPLL1 and VINT* regulators as always_on by default since they are critical to TWL and its master's functionality and should be on in all cases where RegFW is used Signed-off-by: Juha Keski-Saari <ext-juha.1.keski-saari@nokia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17twl-regulator: Add all twl4030 regulators to twlreg_infoJuha Keski-Saari
Define all twl4030 regulators in the twlreg_info table, along with appropriate VSEL tables for adjustable regulators Signed-off-by: Juha Keski-Saari <ext-juha.1.keski-saari@nokia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: mc13783-regulator: correct the probing time.Alberto Panizzo
When the mc13783-regulator driver is built in kernel, probing it during the regulator subsystem initialisation result in a fault. That is because regulator subsystem is planned to be initialised very early in the boot process, before the mfd subsystem initialisation. The mc12783-regulator probing process need to access to the mc13783-core functionality to read/write mc13783 registers and so must be called after the mc13783-core driver initialisation. The way to do this is to let the kernel probe the mc13783-regulator driver when mc13783-core register his regulator subdevice. Signed-off-by: Alberto Panizzo <maramaopercheseimorto@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: Fix unbalanced disables/enables in ↵Lars-Peter Clausen
regulator_bulk_{enable,disable} error path Currently it is possible for regulator_bulk_{enable,disable} operations to generate unbalanced regulator_{disable,enable} calls in its error path. In case of an error only those regulators of the bulk operation which actually had been enabled/disabled should get their original state restored. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: core.c: Small coding style cleanup (indentation fixup)Stefan Roese
Signed-off-by: Stefan Roese <sr@denx.de> Cc: Liam Girdwood <lrg@slimlogic.co.uk> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17drivers/regulator: use PTR_ERR to get error codeJulia Lawall
IS_ERR returns only 1 or 0. The callsite of setup_regulators expects a negative integer in an error case. Thus, PTR_ERR has to be used to extract it. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression E,E1; @@ *E = IS_ERR(...) ... when != E = E1 *return E; // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: consumer.h - fix build when consumer.h is #included first.Liam Girdwood
consumer.h requires device.h for stand alone build. Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator/mc13783: various cleanupsUwe Kleine-König
- define needed registers and bits in the driver - properly namespace functions and structs - fix locking as required by patch "mfd/mc13783: near complete rewrite" - use platform_data as provided by "mfd/mc13783: near complete rewrite" instead of accessing struct mc13783 - struct mc13783_regulator_priv.desc is (and was) unused and so can go away - use cpp magic to initialize mc13783_regulators - bring MODULE_LICENSE in sync with actual copyright - minor style fixes This allows not including mc13783-private.h which I intend to remove soon. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Liam Girdwood <lrg@slimlogic.co.uk> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Mark Brown <broonie@opensoruce.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator/mc13783: rename source file to match other driversUwe Kleine-König
One annoying thing about the old name was that the module was just called mc13783 which caused wrong expectations (at least for me). Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Liam Girdwood <lrg@slimlogic.co.uk> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Mark Brown <broonie@opensoruce.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17Fix some AB3100 regulator issuesLinus Walleij
This patch will remove surplus register writes on shut down of LDO D (this magic was not needed), remove an unnecessary (!) error check and really unregister the regulators when the module is unloaded. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: keep index within bounds in da9034_get_ldo12_voltage()Roel Kluin
If selector equals ARRAY_SIZE(da9034_ldo12_data), that is one too large already. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: Ensure val is initialised in 88pm8607 choose_voltage()Mark Brown
If we fall through it means that we hit an unknown regulator/chip combination so set -ENOENT as an explicit flag (the return code is only used internally). Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: Remove duplicate consts from ab3100Mark Brown
'static const int const' means the same thing as 'static const int' and sparse complains about this. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: Handle regulators without suspend mode configurationMark Brown
Since some regulators in the system may not support suspend mode configuration we need to allow some regulators to have a missing suspend mode configuration. Do this by requiring that disabled regulators are explicitly flagged and then skip over regulators that have no state specified. Try to avoid surprises by warning the if we could set the state but no configuration is provided. This also ensures that an all zeros configuration generates a warning rather than silently disabling the regulator. Reported-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: Factor out regulator name pretty printingMark Brown
Some of the regulator API functions have code to allow the machine constraints to override the device supplied name for the regulator in the constraints in order to help tie logging to supplies on the board and disambiguate when there is more than one regulator chip in the system. Factor this code out into a new rdev_get_name() function and use it throughout the regulator API so that we always use the same name. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: Display actual settings with constraintsMark Brown
When voltage or current constraints are either missing or specify a range display the actual setting along with the constraints if we can. This can aid debugging of configuration problems. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: Also lift apply_uV into machine_constraints_voltage()Mark Brown
It makes sense to do all the voltage configuration in the one split out function. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: Factor out voltage constraint setupMark Brown
This allows constraints to take effect on regulators that support voltage setting but for which the board does not specify a voltage range (for example, because it is fixed correctly at system startup). Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: Report error codes for bulk operationsMark Brown
If we're going to log an error we may as well log what the error code that we're failing on is. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: add 88PM8607 PMIC driverHaojian Zhuang
Hi Liam, Since Samuel merged a new version of mfd 88pm8607 driver, I format a new patch on regulator 88pm8607. I paste the new patch in mail. Please help to review again. And I also attach the mfd driver in mail. From: Haojian Zhuang <haojian.zhuang@marvell.com> Date: Thu, 8 Oct 2009 09:36:53 -0400 Subject: [PATCH] regulator: Add 88PM8607 PMIC driver This patch adds regulator drivers for Marvell 88PM8607 PMIC. This controller contains 3 DVC and 14 LDO regulators. This controller uses I2C interface. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: Implement WM831x BuckWise DC-DC convertor DVS supportMark Brown
The BuckWise DC-DC convertors in WM831x devices support switching to a second output voltage using the logic level on one of the device pins. This is intended to allow rapid voltage switching for uses like cpufreq, replacing the I2C or SPI write used to configure the voltage of the regulator with a much faster GPIO status change. This is implemented by keeping the DVS voltage configured as the maximum voltage permitted for the regulator. If a request is made for the maximum voltage then the GPIO is used to switch to the DVS voltage, otherwise the normal ON voltage is updated and used. This follows the idiom used by most cpufreq drivers, which drop the minimum voltage as the core frequency is dropped but use a constant maximum - raising the voltage should normally be fast, but lowering it may be slower. Configuration of the DVS MFP on the device should be done externally, for example via OTP. Support is present in the hardware for monitoring the status of the transition using a second GPIO. This is not currently implemented but platform data is provided for it - the driver currently assumes that the device will be configured to transition immediately - but platform data is provided to reduce merge issues once it is. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17regulator: add driver for MAX8660/8661Wolfram Sang
Tested with a MX25-based custom board. Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2009-12-17dio: fix use-after-freeAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-12-16Fix breakage in shmem.cAl Viro
Replacing error = 0; if (error) op with nothing is not quite an equivalent transformation ;-) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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