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* xfs: cleanup the transaction commit path a bitChristoph Hellwig2011-12-083-99/+63
| | | | | | | | | | | | | | Now that the nodelaylog mode is gone we can simplify the transaction commit path a bit by removing the xfs_trans_commit_cil routine. Restoring the process flags is merged into xfs_trans_commit which already does it for the error path, and allocating the log vectors is merged into xlog_cil_format_items, which already fills them with data, thus avoiding one loop over all log items. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com>
* xfs: remove the deprecated nodelaylog optionChristoph Hellwig2011-12-086-486/+26
| | | | | | | | | | | The delaylog mode has been the default for a long time, and the nodelaylog option has been scheduled for removal in Linux 3.3. Remove it and code only used by it now that we have opened the 3.3 window. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com>
* xfs: fix the logspace waiting algorithmChristoph Hellwig2011-12-062-183/+177
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Apply the scheme used in log_regrant_write_log_space to wake up any other threads waiting for log space before the newly added one to log_regrant_write_log_space as well, and factor the code into readable helpers. For each of the queues we have add two helpers: - one to try to wake up all waiting threads. This helper will also be usable by xfs_log_move_tail once we remove the current opportunistic wakeups in it. - one to sleep on t_wait until enough log space is available, loosely modelled after Linux waitqueues. And use them to reimplement the guts of log_regrant_write_log_space and log_regrant_write_log_space. These two function now use one and the same algorithm for waiting on log space instead of subtly different ones before, with an option to completely unify them in the near future. Also move the filesystem shutdown handling to the common caller given that we had to touch it anyway. Based on hard debugging and an earlier patch from Chandra Seetharaman <sekharan@us.ibm.com>. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Chandra Seetharaman <sekharan@us.ibm.com> Tested-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: Ben Myers <bpm@sgi.com>
* xfs: fix nfs export of 64-bit inodes numbers on 32-bit kernelsChristoph Hellwig2011-12-061-4/+4
| | | | | | | | | | | | | | The i_ino field in the VFS inode is of type unsigned long and thus can't hold the full 64-bit inode number on 32-bit kernels. We have the full inode number in the XFS inode, so use that one for nfs exports. Note that I've also switched the 32-bit file handles types to it, just to make the code more consistent and copy & paste errors less likely to happen. Reported-by: Guoquan Yang <ygq51@hotmail.com> Reported-by: Hank Peng <pengxihan@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com>
* xfs: fix allocation length overflow in xfs_bmapi_write()Dave Chinner2011-12-021-1/+19
| | | | | | | | | | | | | | | | | | | | | | | | | When testing the new xfstests --large-fs option that does very large file preallocations, this assert was tripped deep in xfs_alloc_vextent(): XFS: Assertion failed: args->minlen <= args->maxlen, file: fs/xfs/xfs_alloc.c, line: 2239 The allocation was trying to allocate a zero length extent because the lower 32 bits of the allocation length was zero. The remaining length of the allocation to be done was an exact multiple of 2^32 - the first case I saw was at 496TB remaining to be allocated. This turns out to be an overflow when converting the allocation length (a 64 bit quantity) into the extent length to allocate (a 32 bit quantity), and it requires the length to be allocated an exact multiple of 2^32 blocks to trip the assert. Fix it by limiting the extent lenth to allocate to MAXEXTLEN. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
* xfs: fix attr2 vs large data fork assertChristoph Hellwig2011-11-291-25/+39
| | | | | | | | | | | | | | | | | | | | | | | With Dmitry fsstress updates I've seen very reproducible crashes in xfs_attr_shortform_remove because xfs_attr_shortform_bytesfit claims that the attributes would not fit inline into the inode after removing an attribute. It turns out that we were operating on an inode with lots of delalloc extents, and thus an if_bytes values for the data fork that is larger than biggest possible on-disk storage for it which utterly confuses the code near the end of xfs_attr_shortform_bytesfit. Fix this by always allowing the current attribute fork, like we already do for the attr1 format, given that delalloc conversion will take care for moving either the data or attribute area out of line if it doesn't fit at that point - or making the point moot by merging extents at this point. Also document the function better, and clean up some loose bits. Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com>
* xfs: force buffer writeback before blocking on the ilock in inode reclaimChristoph Hellwig2011-11-293-0/+33
| | | | | | | | | | | | | | | | If we are doing synchronous inode reclaim we block the VM from making progress in memory reclaim. So if we encouter a flush locked inode promote it in the delwri list and wake up xfsbufd to write it out now. Without this we can get hangs of up to 30 seconds during workloads hitting synchronous inode reclaim. The scheme is copied from what we do for dquot reclaims. Reported-by: Simon Kirby <sim@hostway.ca> Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Simon Kirby <sim@hostway.ca> Signed-off-by: Ben Myers <bpm@sgi.com>
* xfs: validate acl countChristoph Hellwig2011-11-291-0/+2
| | | | | | | | | This prevents in-memory corruption and possible panics if the on-disk ACL is badly corrupted. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com>
* MAINTAINERS: update XFS maintainer entryAlex Elder2011-11-181-1/+2
| | | | | | | | | | | | I will no longer be maintaining XFS for SGI. Ben Myers (bpm@sgi.com) has agreed to be the primary maintainer for XFS in my place. I will continue to be able to push commits to the SGI XFS tree if required. As such I will continue to be a designated XFS maintainer, but plan to serve in more of a backup role. Signed-off-by: Alex Elder <aelder@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
* xfs: use doalloc flag in xfs_qm_dqattach_one()Mitsuo Hayasaka2011-11-151-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | The doalloc arg in xfs_qm_dqattach_one() is a flag that indicates whether a new area to handle quota information will be allocated if needed. Originally, it was passed to xfs_qm_dqget(), but has been removed by the following commit (probably by mistake): commit 8e9b6e7fa4544ea8a0e030c8987b918509c8ff47 Author: Christoph Hellwig <hch@lst.de> Date: Sun Feb 8 21:51:42 2009 +0100 xfs: remove the unused XFS_QMOPT_DQLOCK flag As the result, xfs_qm_dqget() called from xfs_qm_dqattach_one() never allocates the new area even if it is needed. This patch gives the doalloc arg to xfs_qm_dqget() in xfs_qm_dqattach_one() to fix this problem. Signed-off-by: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com> Cc: Alex Elder <aelder@sgi.com> Cc: Christoph Hellwig <hch@infradead.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com>
* xfs: fix force shutdown handling in xfs_end_ioChristoph Hellwig2011-11-081-1/+1
| | | | | | | | Ensure ioend->io_error gets propagated back to e.g. AIO completions. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Alex Elder <aelder@sgi.com>
* xfs: constify xfs_item_opsChristoph Hellwig2011-11-087-12/+12
| | | | | | | | | | | The log item ops aren't nessecarily the biggest exploit vector, but marking them const is easy enough. Also remove the unused xfs_item_ops_t typedef while we're at it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Alex Elder <aelder@sgi.com>
* xfs: Fix possible memory corruption in xfs_readlinkCarlos Maiolino2011-11-081-4/+10
| | | | | | | | | | | | | | | | | | | | | | | | Fixes a possible memory corruption when the link is larger than MAXPATHLEN and XFS_DEBUG is not enabled. This also remove the S_ISLNK assert, since the inode mode is checked previously in xfs_readlink_by_handle() and via VFS. Updated to address concerns raised by Ben Hutchings about the loose attention paid to 32- vs 64-bit values, and the lack of handling a potentially negative pathlen value: - Changed type of "pathlen" to be xfs_fsize_t, to match that of ip->i_d.di_size - Added checking for a negative pathlen to the too-long pathlen test, and generalized the message that gets reported in that case to reflect the change As a result, if a negative pathlen were encountered, this function would return EFSCORRUPTED (and would fail an assertion for a debug build)--just as would a too-long pathlen. Signed-off-by: Alex Elder <aelder@sgi.com> Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
* Linux 3.2-rc1v3.2-rc1Linus Torvalds2011-11-081-3/+3
| | | | | | .. with new name. Because nothing says "really solid kernel release" like naming it after an extinct animal that just happened to be in the news lately.
* Merge branch 'fixes' of ↵Linus Torvalds2011-11-0842-402/+345
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (31 commits) ARM: OMAP: Fix export.h or module.h includes ARM: OMAP: omap_device: Include linux/export.h ARM: OMAP2: Fix H4 matrix keyboard warning ARM: OMAP1: Remove unused omap-alsa.h ARM: OMAP1: Fix warnings about enabling 32 KiHz timer ARM: OMAP2+: timer: Remove omap_device_pm_latency ARM: OMAP2+: clock data: Remove redundant timer clkdev ARM: OMAP: Devkit8000: Remove double omap_mux_init_gpio ARM: OMAP: usb: musb: OMAP: Delete unused function MAINTAINERS: Update linux-omap git repository ARM: OMAP: change get_context_loss_count ret value to int ARM: OMAP4: hsmmc: configure SDMMC1_DR0 properly ARM: OMAP4: hsmmc: Fix Pbias configuration on regulator OFF ARM: OMAP3: hwmod: fix variant registration and remove SmartReflex from common list ARM: OMAP: I2C: Fix omap_register_i2c_bus() return value on success ARM: OMAP: dmtimer: Include linux/module.h ARM: OMAP2+: l3-noc: Include linux/module.h ARM: OMAP2+: devices: Fixes for McPDM ARM: OMAP: Fix errors and warnings when building for one board ARM: OMAP3: PM: restrict erratum i443 handling to OMAP3430 only ...
| * Merge branch 'fixes-modulesplit' into fixesTony Lindgren2011-11-073863-39041/+82624
| |\
| | * ARM: OMAP: Fix export.h or module.h includesTony Lindgren2011-11-074-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 32aaeffbd4a7457bf2f7448b33b5946ff2a960eb (Merge branch 'modsplit-Oct31_2011'...) caused some build errors. Fix these and make sure we always have export.h or module.h included for MODULE_ and EXPORT_SYMBOL users: $ grep -rl ^MODULE_ arch/arm/*omap*/*.c | xargs \ grep -L linux/module.h arch/arm/mach-omap2/dsp.c arch/arm/mach-omap2/mailbox.c arch/arm/mach-omap2/omap-iommu.c arch/arm/mach-omap2/smartreflex.c Also check we either have export.h or module.h included for the files exporting symbols: $ grep -rl EXPORT_SYMBOL arch/arm/*omap*/*.c | xargs \ grep -L linux/export.h | xargs grep -L linux/module.h Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
| | * ARM: OMAP: omap_device: Include linux/export.hAxel Lin2011-11-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Include linux/export.h to fix below build warning: CC arch/arm/plat-omap/omap_device.o arch/arm/plat-omap/omap_device.c:1055: warning: data definition has no type or storage class arch/arm/plat-omap/omap_device.c:1055: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' arch/arm/plat-omap/omap_device.c:1055: warning: parameter names (without types) in function declaration Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP2: Fix H4 matrix keyboard warningTony Lindgren2011-11-051-53/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use matrix keyboard to remove the warning "Please update the board to use matrix-keypad driver". Based on similar setup in palmtc.c. Note that this patch is compile tested only because of lack of working hardware. Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP1: Remove unused omap-alsa.hJarkko Nikula2011-11-052-124/+0
| | | | | | | | | | | | | | | | | | | | | There is no use for omap-alsa.h and board-palmz71.c doesn't need it either. Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP1: Fix warnings about enabling 32 KiHz timerTony Lindgren2011-11-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fix "Enable 32kHz OS timer in order to allow sleep states in idle" warning. We are now compiling in bothe MPU timer and 32 KiHz timer, so this warning is only valid when MPU_TIMER is set and OMAP_DM_TIMER is not set. Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP2+: timer: Remove omap_device_pm_latencyBenoit Cousson2011-11-051-11/+1
| | | | | | | | | | | | | | | | | | | | | | | | Remove the structure since a default one is now available. Signed-off-by: Benoit Cousson <b-cousson@ti.com> Cc: Kevin Hilman <khilman@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP2+: clock data: Remove redundant timer clkdevBenoit Cousson2011-11-054-47/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The commit 318c3e15cd55c73a26ae22a65a8183655b3003f9 added some "fck" clock alias to timer devices that are not needed anymore since hwmod framework will create them automatically. A warning was added to highlight and thus fix the redundancy. [ 0.616424] omap_timer.1: alias fck already exists [ 0.621948] omap_timer.2: alias fck already exists [ 0.627380] omap_timer.3: alias fck already exists [ 0.632781] omap_timer.4: alias fck already exists [ 0.638214] omap_timer.5: alias fck already exists [ 0.643615] omap_timer.6: alias fck already exists [ 0.649078] omap_timer.7: alias fck already exists [ 0.654479] omap_timer.8: alias fck already exists [ 0.659881] omap_timer.9: alias fck already exists [ 0.665283] omap_timer.10: alias fck already exists [ 0.670776] omap_timer.11: alias fck already exists Remove all the clkdev entries for timer fck alias. Signed-off-by: Benoit Cousson <b-cousson@ti.com> Cc: Tarun Kanti DebBarma <tarun.kanti@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP: Devkit8000: Remove double omap_mux_init_gpioThomas Weber2011-11-051-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the init of card detect pin because omap_mux_init_gpio() is called during hsmmc initialization for the write protect and card detect pin. Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP: usb: musb: OMAP: Delete unused functionBjarne Steinsbo2011-11-051-38/+0
| | | | | | | | | | | | | | | | | | | | | | | | Not in use anymore. Signed-off-by: Bjarne Steinsbo <bsteinsbo@gmail.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | MAINTAINERS: Update linux-omap git repositoryJarkko Nikula2011-11-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | linux-omap is back at git.kernel.org. Path is the same than before except -2.6 appendix. Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP: change get_context_loss_count ret value to intTomi Valkeinen2011-11-059-20/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | get_context_loss_count functions return context loss count as u32, and zero means an error. However, zero is also returned when context has never been lost and could also be returned when the context loss count has wrapped and goes to zero. Change the functions to return an int, with negative value meaning an error. OMAP HSMMC code uses omap_pm_get_dev_context_loss_count(), but as the hsmmc code handles the returned value as an int, with negative value meaning an error, this patch actually fixes hsmmc code also. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Kevin Hilman <khilman@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> [tony@atomide.com: updated to fix a warning with recent dmtimer changes] Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP4: hsmmc: configure SDMMC1_DR0 properlyBalaji T K2011-11-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Fix the typo, instead it should be SDMMC1 USBC1 is not related to MMC1 I/Os Signed-off-by: Balaji T K <balajitk@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP4: hsmmc: Fix Pbias configuration on regulator OFFBalaji T K2011-11-051-12/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MMC1 data line IO's are powered down in before set regulator function. IO's should not be powered ON when regulator is OFF. Keep the IO's in power pown mode after regulator OFF otherwise VMODE_ERROR interrupt is generated due to mismatch in input (regulator) voltage and MMC IO drive voltage. Delete incorrect comments which are not applicable for OMAP4. Signed-off-by: Balaji T K <balajitk@ti.com> Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Reported-by: Viswanath Puttagunta <vishp@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP3: hwmod: fix variant registration and remove SmartReflex from ↵Paul Walmsley2011-11-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | common list Commit d6504acd2125984c61dce24727dd3842d0144015 ("OMAP2+: hwmod: remove OMAP_CHIP*") tests the inverse condition of what it should be testing for the return value from omap_hwmod_register(). This causes several IP blocks to not be registered on several OMAP3 family devices. Fixing that bug also unmasked another bug, originally reported by Chase Maupin <chase.maupin@ti.com> and then subsequently by Abhilash K V <abhilash.kv@ti.com>, which caused SmartReflex IP blocks to be registered on SoCs that don't support them. Thanks to Russell King - ARM Linux <linux@arm.linux.org.uk> for comments on a previous version of the patch. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Chase Maupin <chase.maupin@ti.com> Cc: Abhilash K V <abhilash.kv@ti.com> Cc: Russell King - ARM Linux <linux@arm.linux.org.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP: I2C: Fix omap_register_i2c_bus() return value on successLaurent Pinchart2011-11-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 4d17aeb1c5b2375769446d13012a98e6d265ec13 ("OMAP: I2C: split device registration and convert OMAP2+ to omap_device") makes omap2_i2c_add_bus() return a pointer to an omap_device instead on success instead of 0. This breaks the omap_register_i2c_bus() ABI and results in the igep0020 board code detecting an I2C bus registration error when there is none. Fix the problem by using PTR_RET() instead of PTR_ERR() in omap2_i2c_add_bus(). Reported-by: Alexander Kinzer <a.kinzer@plusoptix.de> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [tony@atomide.com: updated to return pdev instead of od] Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP: dmtimer: Include linux/module.hAxel Lin2011-11-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Include linux/module.h to fix below build error: CC arch/arm/plat-omap/dmtimer.o arch/arm/plat-omap/dmtimer.c:184: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:184: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:184: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:215: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:215: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:215: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:228: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:228: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:228: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:234: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:234: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:234: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:240: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:240: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:240: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:248: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:248: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:248: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:294: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:294: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:294: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:302: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:302: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:302: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:316: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:316: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:316: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:344: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:344: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:344: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:361: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:361: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:361: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:380: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:380: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:380: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:406: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:406: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:406: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:443: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:443: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:443: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:468: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:468: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:468: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:494: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:494: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:494: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:517: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:517: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:517: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:534: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:534: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:534: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:549: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:549: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:549: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:561: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:561: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:561: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:572: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:572: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:572: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:587: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:587: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:587: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:604: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:604: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/arm/plat-omap/dmtimer.c:604: warning: parameter names (without types) in function declaration arch/arm/plat-omap/dmtimer.c:746: error: expected declaration specifiers or '...' before string constant arch/arm/plat-omap/dmtimer.c:746: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:746: warning: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION' arch/arm/plat-omap/dmtimer.c:746: warning: function declaration isn't a prototype arch/arm/plat-omap/dmtimer.c:747: error: expected declaration specifiers or '...' before string constant arch/arm/plat-omap/dmtimer.c:747: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:747: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE' arch/arm/plat-omap/dmtimer.c:747: warning: function declaration isn't a prototype arch/arm/plat-omap/dmtimer.c:748: error: expected declaration specifiers or '...' before string constant arch/arm/plat-omap/dmtimer.c:748: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:748: warning: type defaults to 'int' in declaration of 'MODULE_ALIAS' arch/arm/plat-omap/dmtimer.c:748: warning: function declaration isn't a prototype arch/arm/plat-omap/dmtimer.c:749: error: expected declaration specifiers or '...' before string constant arch/arm/plat-omap/dmtimer.c:749: warning: data definition has no type or storage class arch/arm/plat-omap/dmtimer.c:749: warning: type defaults to 'int' in declaration of 'MODULE_AUTHOR' arch/arm/plat-omap/dmtimer.c:749: warning: function declaration isn't a prototype make[1]: *** [arch/arm/plat-omap/dmtimer.o] Error 1 make: *** [arch/arm/plat-omap] Error 2 Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP2+: l3-noc: Include linux/module.hAxel Lin2011-11-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Include linux/module.h to fix below build error: CC arch/arm/mach-omap2/omap_l3_noc.o arch/arm/mach-omap2/omap_l3_noc.c:240: error: expected ',' or ';' before 'MODULE_DEVICE_TABLE' arch/arm/mach-omap2/omap_l3_noc.c:250: error: 'THIS_MODULE' undeclared here (not in a function) make[1]: *** [arch/arm/mach-omap2/omap_l3_noc.o] Error 1 make: *** [arch/arm/mach-omap2] Error 2 Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP2+: devices: Fixes for McPDMPeter Ujfalusi2011-11-051-14/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit f718e2c034bf6ff872106344935006230764cb12 (ARM: OMAP2+: devices: Remove all omap_device_pm_latency structures) removed these structures. Commit 3528c58eb9e818b7821501afa2916eb12131994a (OMAP: omap_device: when building return platform_device instead of omap_device) now returns platform_device instead of omap_device. Fix up the omap-mcpdm init function since this part comes via sound tree, and there has been changes regarding to hwmod/omap_device_build. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> CC: Benoit Cousson <b-cousson@ti.com> CC: Kevin Hilman <khilman@ti.com> [tony@atomide.com: updated comments] Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | ARM: OMAP: Fix errors and warnings when building for one boardSanjeev Premi2011-11-052-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When customizing omap2plus_defconfig to build for only one board (omap3evm), I came across these warnings and errors (filenames truncated): arch/arm/mach-omap2/board-generic.c:76:20: warning: 'omap4_init' defined but not used arch/arm/mach-omap2/built-in.o: In function `omap2420_init_early': arch/arm/mach-omap2/io.c:364: undefined reference to `omap2_set_globals_242x' arch/arm/mach-omap2/io.c:366: undefined reference to `omap2xxx_voltagedomains_init' arch/arm/mach-omap2/io.c:367: undefined reference to `omap242x_powerdomains_init' arch/arm/mach-omap2/io.c:368: undefined reference to `omap242x_clockdomains_init' arch/arm/mach-omap2/io.c:369: undefined reference to `omap2420_hwmod_init' arch/arm/mach-omap2/built-in.o: In function `omap2430_init_early': arch/arm/mach-omap2/io.c:376: undefined reference to `omap2_set_globals_243x' arch/arm/mach-omap2/io.c:378: undefined reference to `omap2xxx_voltagedomains_init' arch/arm/mach-omap2/io.c:379: undefined reference to `omap243x_powerdomains_init' arch/arm/mach-omap2/io.c:380: undefined reference to `omap243x_clockdomains_init' arch/arm/mach-omap2/io.c:381: undefined reference to `omap2430_hwmod_init' arch/arm/mach-omap2/built-in.o: In function `omap4430_init_early': arch/arm/mach-omap2/io.c:436: undefined reference to `omap2_set_globals_443x' arch/arm/mach-omap2/io.c:438: undefined reference to `omap44xx_voltagedomains_init' arch/arm/mach-omap2/io.c:439: undefined reference to `omap44xx_powerdomains_init' arch/arm/mach-omap2/io.c:440: undefined reference to `omap44xx_clockdomains_init' arch/arm/mach-omap2/io.c:441: undefined reference to `omap44xx_hwmod_init' This patch fixes them. Signed-off-by: Sanjeev Premi <premi@ti.com> Acked-by: Thomas Weber <weber@corscience.de> [tony@atomide.com: updated to fix warnings for board-generic.c] Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | Merge branch 'for_3.2/pm-cleanup-2' of ↵Tony Lindgren2011-11-053-39/+53
| |\ \ | | | | | | | | | | | | git://github.com/khilman/linux-omap-pm into fixes
| | * | ARM: OMAP3: PM: restrict erratum i443 handling to OMAP3430 onlyPaul Walmsley2011-10-071-9/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on the documents that I have here, there doesn't appear to be an equivalent to erratum i443 for OMAP3630, so restrict this one to OMAP34xx chips. Also, explicitly restrict this erratum to EMU and HS devices. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
| | * | ARM: OMAP3: PM: fix I/O wakeup and I/O chain clock control detectionPaul Walmsley2011-10-073-27/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The way that we detect which OMAP3 chips support I/O wakeup and software I/O chain clock control is broken. Currently, I/O wakeup is marked as present for all OMAP3 SoCs other than the AM3505/3517. The TI81xx family of SoCs are at present considered to be OMAP3 SoCs, but don't support I/O wakeup. To resolve this, convert the existing blacklist approach to an explicit, whitelist support, in which only SoCs which are known to support I/O wakeup are listed. (At present, this only includes OMAP34xx, OMAP3503, OMAP3515, OMAP3525, OMAP3530, and OMAP36xx.) Also, the current code incorrectly detects the presence of a software-controllable I/O chain clock on several chips that don't support it. This results in writes to reserved bitfields, unnecessary delays, and console messages on kernels running on those chips: http://www.spinics.net/lists/linux-omap/msg58735.html Convert this test to a feature test with a chip-by-chip whitelist. Thanks to Dave Hylands <dhylands@gmail.com> for reporting this problem and doing some testing to help isolate the cause. Thanks to Steve Sakoman <sakoman@gmail.com> for catching a bug in the first version of this patch. Thanks to Russell King <linux@arm.linux.org.uk> for comments. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Dave Hylands <dhylands@gmail.com> Cc: Steve Sakoman <sakoman@gmail.com> Tested-by: Steve Sakoman <sakoman@gmail.com> Cc: Russell King - ARM Linux <linux@arm.linux.org.uk> Signed-off-by: Kevin Hilman <khilman@ti.com>
| | * | ARM: OMAP3: PM: fix pwrdm_post_transition call sequenceCharulatha V2011-10-071-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The context lost count is modified in omap_sram_idle() path when pwrdm_post_transition() is called. But pwrdm_post_transition() is called only after omap_gpio_resume_after_idle() is called. Correct this so that context lost count is modified before calling omap_gpio_resume_after_idle(). This would be useful when OMAP GPIO save/restore context is called by the OMAP GPIO driver itself. Signed-off-by: Charulatha V <charu@ti.com> Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
| * | | Merge branch 'prcm_scm_misc_fixes_3.2' of git://git.pwsan.com/linux-2.6 into ↵Tony Lindgren2011-11-052-9/+12
| |\ \ \ | | | | | | | | | | | | | | | fixes
| | * | | ARM: OMAP: AM35x: remove hwmods that aren't genericAbhilash K V2011-10-071-5/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Removing modules iva, sr1_hwmod, sr2_hwmod, mailbox from the base omap3xxx_hwmods list, so that they can be excluded for am35x. This removes quite a few warnings on boot for AM35x. Signed-off-by: Abhilash K V <abhilash.kv@ti.com> [paul@pwsan.com: dropped 'mailbox class' comments; updated changelog] Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | * | | ARM: OMAP: ctrl: Fix CONTROL_DSIPHY register fieldsArchit Taneja2011-10-071-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the shift and mask macros for DSIx_PPID fields in CONTROL_DSIPHY. The OMAP4430 Public TRM vV has these fields mentioned correctly. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Benoit Cousson <b-cousson@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
| * | | | Merge branch 'omap_clock_fixes_3.2' of git://git.pwsan.com/linux-2.6 into fixesTony Lindgren2011-11-056-28/+142
| |\ \ \ \
| | * | | | ARM: OMAP3+: Update DPLL Fint range for OMAP36xx and OMAP4xxx devicesJon Hunter2011-10-071-16/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The OMAP36xx and OMAP4xxx DPLLs have a different internal reference clock frequency (fint) operating range than OMAP3430. Update the dpll_test_fint() function to check for the correct frequency ranges for OMAP36xx and OMAP4xxx. For OMAP36xx and OMAP4xxx devices, DPLLs fint range is 0.5MHz to 2.5MHz for j-type DPLLs and otherwise it is 32KHz to 52MHz for all other DPLLs. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | * | | | ARM: OMAP4: clock: Add missing clock divider for OCP_ABE_ICLKJon Hunter2011-10-071-1/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The parent clock of the OCP_ABE_ICLK is the AESS_FCLK and the parent clock of the AESS_FCLK is the ABE_FCLK... ABE_FCLK --> AESS_FCLK --> OCP_ABE_ICLK The AESS_FCLK and OCP_ABE_ICLK clocks both have dividers which determine their operational frequency. However, the dividers for the AESS_FCLK and OCP_ABE_ICLK are controlled via a single bit, which is the CM1_ABE_AESS_CLKCTRL[24] bit. When this bit is set to 0, the AESS_FCLK divider is 1 and the OCP_ABE_ICLK divider is 2. Similarly, when this bit is set to 1, the AESS_FCLK divider is 2 and the OCP_ABE_ICLK is 1. The above relationship between the AESS_FCLK and OCP_ABE_ICLK dividers ensure that the OCP_ABE_ICLK clock is always half the frequency of the ABE_CLK... OCP_ABE_ICLK = ABE_FCLK/2 The divider for the OCP_ABE_ICLK is currently missing so add a divider that will ensure the OCP_ABE_ICLK frequency is always half the ABE_FCLK frequency. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | * | | | ARM: OMAP4460: Clock: Adding support for 4460 specific clocksPaul Walmsley2011-10-071-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OMAP4460 specific clocks are not getting added as the cpu_is_omap44xx is choosing only OMAP4430 specific clock nodes. Changing it to add to OMAP4460 specific clocks also. This is clocks are required of temperature sensor. Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com> Signed-off-by: Keerthy <j-keerthy@ti.com> Cc: paul@pwsan.com [paul@pwsan.com: updated to apply] Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | * | | | ARM: OMAP3+: dpll: use DPLLs recalc function instead of omap2_get_dpll_rateJon Hunter2011-10-071-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a continuation of Mike Turquette's patch "OMAP3+: use DPLL's round_rate when setting rate". omap3_noncore_dpll_set_rate() and omap3_noncore_dpll_enable() call omap2_get_dpll_rate() explicitly. It may be necessary for some DPLLs to use a different function and so use the DPLLs recalc() function pointer instead. An example is the DPLL_ABE on OMAP4 which can have a 4X multiplier in addition to the usual MN multipler and dividers and therefore uses a different round_rate and recalc function. Signed-off-by: Jon Hunter <jon-hunter@ti.com> Cc: Mike Turquette <mturquette@ti.com> Cc: Misael Lopez Cruz <misael.lopez@ti.com> [paul@pwsan.com: merged this patch with Mike's "use clock's recalc in DPLL handling" patch; also reported by Misael] Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | * | | | ARM: OMAP3+: dpll: assign clk rate from rounded rate during rate setMike Turquette2011-10-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The rounded rate can differ from target rate, so to better reflect reality set clk->rate equal to the rounded rate when setting DPLL frequency. This avoids issues where the DPLL frequency is slightly different than what debugfs clock tree reports using the old target rate. An example of a clock that requires this is DPLL_ABE on OMAP4 which can have a 4x multiplier on top of the usual MN dividers depending on register settings. This requires a special round_rate function that might yield a rate different from the initial target. Signed-off-by: Mike Turquette <mturquette@ti.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | * | | | ARM: OMAP3+: dpll: use DPLL's round_rate when setting rateMike Turquette2011-10-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | omap3_noncore_dpll_set_rate uses omap2_dpll_round_rate explicitly. Instead use the struct clk pointer's round_rate function to allow for DPLL's with special needs. An example of a clock that requires this is DPLL_ABE on OMAP4 which can have a 4x multiplier on top of the usual MN dividers depending on register settings. This requires a special round_rate function that might yield a rate different from the initial target. Signed-off-by: Mike Turquette <mturquette@ti.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com> [paul@pwsan.com: split rate assignment portion into a separate patch] Signed-off-by: Paul Walmsley <paul@pwsan.com>
| | * | | | ARM: OMAP4: clock: round_rate and recalc functions for DPLL_ABEMike Turquette2011-10-074-2/+80
| | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OMAP4 DPLL_ABE can enable a 4X multipler on top of the normal MN multipler and divider. This is achieved by setting CM_CLKMODE_DPLL_ABE.DPLL_REGM4XEN bit in CKGEN module of CM1. From the OMAP4 TRM: Fdpll = Fref x 2 x (4 x M/(N+1)) in case REGM4XEN bit field is set (only applicable to DPLL_ABE). Add new round_rate() and recalc() functions for OMAP4, that check the setting of REGM4XEN bit and handle this appropriately. The new functions are a simple wrapper on top of the existing omap2_dpll_round_rate() and omap2_dpll_get_rate() functions to handle the REGM4XEN bit. The REGM4XEN bit is only implemented for the ABE DPLL on OMAP4 and so only dpll_abe_ck uses omap4_dpll_regm4xen_round_rate() and omap4_dpll_regm4xen_recalc() functions. Signed-off-by: Mike Turquette <mturquette@ti.com> Tested-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com> [paul@pwsan.com: fixed attempt to return a negative from a fn returning unsigned; pass along errors from omap2_dpll_round_rate(); added documentation; added Jon's S-o-b] Signed-off-by: Paul Walmsley <paul@pwsan.com>