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* last driver import from 3.2.72 for nowWolfgang Wiedmeyer2015-10-231-17/+53
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* mtd: remove add_mtd_partitions, add_mtd_device and friendsJamie Iles2011-05-251-3/+1
| | | | | | | | | These symbols are replaced with mtd_device_register() (and removal with mtd_device_unregister()) for public registration. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: introduce mtd_device_(un)register()Jamie Iles2011-05-251-0/+45
| | | | | | | | | | | | | | | | | | To prepare for the removal of add_mtd_device and add_mtd_partitions(), introduce mtd_device_register(). This will create partitions if they are supplied or register the whole device if there are no partitions. Once all drivers are converted to use mtd_device_register(), add_mtd_device() and add_mtd_partitions() will be made internal only. v2: move kerneldoc to implementation file and fixup some kerneldoc warnings. Artem: tweak comments: remove junk tabs, use dots consistently. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd:fix the bad format in the mtdcore.cWanlong Gao2011-05-251-4/+4
| | | | | | | | Remove the spare spaces in the head of the lines. Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: simplify get_mtd_device_nm functionWanlong Gao2011-05-251-11/+2
| | | | | | | | | | | | | 'get_mtd_device_nm()' has a piece of code which equivalent to what '__get_mtd_device()' does - remove this duplicated code and use ''__get_mtd_device()' instead. Artem: changed commit message. Artem: while on it, remove an unnecessary extra empty line Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: convert to seq_file interfaceAlexey Dobriyan2011-05-251-31/+19
| | | | | | | | | ->read_proc interface is going away, switch to seq_file. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: create function to perform large allocationsGrant Erickson2011-05-251-0/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce a common function to handle large, contiguous kmalloc buffer allocations by exponentially backing off on the size of the requested kernel transfer buffer until it succeeds or until the requested transfer buffer size falls below the page size. This helps ensure the operation can succeed under low-memory, highly- fragmented situations albeit somewhat more slowly. Artem: so this patch solves the problem that the kernel tries to kmalloc too large buffers, which (a) may fail and does fail - people complain about this, and (b) slows down the system in case of high memory fragmentation, because the kernel starts dropping caches, writing back, swapping, etc. But we do not really have to allocate a lot of memory to do the I/O, we may do this even with as little as one min. I/O unit (NAND page) of RAM. So the idea of this patch is that if the user asks to read or write a lot, we try to kmalloc a lot, with GFP flags which make the kernel _not_ drop caches, etc. If we can allocate it - good, if not - we try to allocate twice as less, and so on, until we reach the min. I/O unit size, which is our last resort allocation and use the normal GFP_KERNEL flag. Artem: re-write the allocation function so that it makes sure the allocated buffer is aligned to the min. I/O size of the flash. Signed-off-by: Grant Erickson <marathon96@gmail.com> Tested-by: Ben Gardiner <bengardiner@nanometrics.ca> Tested-by: Stefano Babic <sbabic@denx.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: local symbols should be staticH Hartley Sweeten2011-03-111-3/+3
| | | | | | | | | The three backing_dev_info symbols are only used in this file and should be static. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: Remove obsolete <mtd/compatmac.h> includeDavid Woodhouse2010-08-081-1/+0
| | | | Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: Update copyright noticesDavid Woodhouse2010-08-081-3/+17
| | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* mtd: update gfp/slab.h includesTejun Heo2010-05-191-0/+1
| | | | | | | | Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* Merge branch 'master' of ↵David Woodhouse2010-05-101-6/+74
|\ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/mtd/mtdcore.c Pull in the bdi fixes and ARM platform changes that other outstanding patches depend on.
| * mtd: ensure that bdi entries are properly initialized and registeredJens Axboe2010-04-271-4/+42
| | | | | | | | | | | | | | They will be holding dirty inodes and be responsible for flushing them out, so they need to be setup properly. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * Move mtd_bdi_*mappable to mtdcore.cJörn Engel2010-04-271-1/+32
| | | | | | | | | | | | | | | | | | | | Removes one .h and one .c file that are never used outside of mtdcore.c. Signed-off-by: Joern Engel <joern@logfs.org> Edited to remove on leftover debug define. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* | mtd: call the remove notifiers before assuming it is in useMaxim Levitsky2010-02-261-8/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that mtd block common layer is prepared for proper hotplug support, enable it here Now all users of the mtd device have a chance to put the mtd device when they are notified to do so, and they have to do so to make hotplug work. [dwmw2: There's more work to be done to fix hotplug in the general case, but this is a reasonable start] Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: create unlocked versions of {get,put}_mtd_deviceMaxim Levitsky2010-02-261-21/+39
| | | | | | | | | | | | | | Use these only if you know that you already hold mtd_table_mutex Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: Replace static array of devices with an idr structureBen Hutchings2010-02-251-71/+80
| | | | | | | | | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | mtd: Introduce and use iteration macro for reading the MTD device tableBen Hutchings2010-02-251-29/+25
|/ | | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: ensure index is positiveRoel Kluin2009-11-301-1/+1
| | | | | | | | | The index is signed, make sure it is not negative when we read the array element. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* Merge branch 'master' of ↵David Woodhouse2009-09-201-1/+1
|\ | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/mtd/mtdcore.c Merged in order that I can apply the Nomadik nand/onenand support patches.
| * driver model: constify attribute groupsDavid Brownell2009-09-151-1/+1
| | | | | | | | | | | | | | | | | | | | Let attribute group vectors be declared "const". We'd like to let most attribute metadata live in read-only sections... this is a start. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | mtd: make few symbols staticH Hartley Sweeten2009-09-041-2/+2
|/ | | | | | | | | | | | Make mtd_group and mtd_groups static since they are only used in this file. [Amended by Artem Bityutskiy] Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: fix the conversion from dev to mtd_infoSaeed Bishara2009-08-031-3/+4
| | | | | | | | | | The patch fixes a bug when converting dev to mtd_info by using the drvdata of the dev, the previous code used container_of(dev, struct mtd_info, dev), but won't work for the mtdXro devices as they created without being contained inside mtd_info structure. Signed-off-by: Saeed Bishara <saeed@marvell.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] Restore suspend/resume support for mtd devicesDavid Woodhouse2009-05-261-10/+37
| | | | | | | This is intended to suspend/resume the _chip_, while we leave board drivers to handle their own suspend/resume for the controller. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: expose subpage size via sysfsArtem Bityutskiy2009-04-191-0/+12
| | | | | | | | | | | | | | | | | | | MTD has got sysfs support in 2.6.30-rc1. But subpage size is not exposed there - do this. UBI utilities badly need this parameter. At the moment there is no way to get subpage size - ioctls do not return it. And we just got sysfs support, so we can easilly extend it with this additional parameter. This can be merged late in the development cycle because: 1. sysfs support has been just added - there are no users for it so far, even. 2. UBI utilities really need this parameter, and it is better not to delay this. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* mtd: mtd in mtd_release is unused without CONFIG_MTD_CHARDenis V. Lunev2009-04-191-3/+3
| | | | | | | | | | drivers/mtd/mtdcore.c: In function 'mtd_release': drivers/mtd/mtdcore.c:51: warning: unused variable 'mtd' [akpm: make it actually build] Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] sysfs support should not depend on CONFIG_PROC_FSKevin Cernekee2009-04-041-3/+6
| | | | | | | | | | | | Move the driver model init code out of the "#ifdef CONFIG_PROC_FS" block. Tested with both values of CONFIG_PROC_FS . Tested with CONFIG_MTD=m . Issue was reported here: http://lkml.org/lkml/2009/4/4/107 Signed-off-by: Kevin Cernekee <kpc.mtd@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] driver model updates (part 2)Kevin Cernekee2009-04-041-21/+90
| | | | | | | | | | | | | | 1) Add more sysfs attributes: flags, size, erasesize, writesize, oobsize, numeraseregions, name 2) Move core_initcall() code into init_mtd(). The original approach does not work if CONFIG_MTD=m . 3) Add device_unregister() in del_mtd_device() so that devices get removed from sysfs as each driver is unloaded. Signed-off-by: Kevin Cernekee <kpc.mtd@gmail.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] driver model updatesDavid Brownell2009-04-041-0/+115
| | | | | | | | | | | | | | | | | | | | | | | | | | | Update driver model support in the MTD framework, so it fits better into the current udev-based hotplug framework: - Each mtd_info now has a device node. MTD drivers should set the dev.parent field to point to the physical device, before setting up partitions or otherwise declaring MTDs. - Those device nodes always map to /sys/class/mtdX device nodes, which no longer depend on MTD_CHARDEV. - Those mtdX sysfs nodes have a "starter set" of attributes; it's not yet sufficient to replace /proc/mtd. - Enabling MTD_CHARDEV provides /sys/class/mtdXro/ nodes and the /sys/class/mtd*/dev attributes (for udev, mdev, etc). - Include a MODULE_ALIAS_CHARDEV_MAJOR macro. It'll work with udev creating the /dev/mtd* nodes, not just a static rootfs. So the sysfs structure is pretty much what you'd expect, except that readonly chardev nodes are a bit quirky. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* NOMMU: Present backing device capabilities for MTD chardevsDavid Howells2009-03-241-0/+15
| | | | | | | | | Present backing device capabilities for MTD character device files to allow NOMMU mmap to do direct mapping where possible. Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] update internal API to support 64-bit device sizeAdrian Hunter2008-12-101-1/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | MTD internal API presently uses 32-bit values to represent device size. This patch updates them to 64-bits but leaves the external API unchanged. Extending the external API is a separate issue for several reasons. First, no one needs it at the moment. Secondly, whether the implementation is done with IOCTLs, sysfs or both is still debated. Thirdly external API changes require the internal API to be accepted first. Note that although the MTD API will be able to support 64-bit device sizes, existing drivers do not and are not required to do so, although NAND base has been updated. In general, changing from 32-bit to 64-bit values cause little or no changes to the majority of the code with the following exceptions: - printk message formats - division and modulus of 64-bit values - NAND base support - 32-bit local variables used by mtdpart and mtdconcat - naughtily assuming one structure maps to another in MEMERASE ioctl Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* [MTD] Use list_for_each_entry[_safe] where appropriate.Chris Malley2008-06-041-4/+2
| | | | | | | | | Janitorial work to remove temporary pointers and make some functions a bit more readable. Signed-off-by: Chris Malley <mail@chrismalley.co.uk> Reviewed-By: Jörn Engel <joern@logfs.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* MTD/JFFS2: remove CVS keywordsAdrian Bunk2008-06-041-2/+0
| | | | | | | | | | | | Once upon a time, the MTD repository was using CVS. This patch therefore removes all usages of the no longer updated CVS keywords from the MTD code. This also includes code that printed them to the user. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] use list_for_each_entry() in del_mtd_device()matthias@kaehlcke.net2008-06-041-3/+2
| | | | | Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] use list_for_each_entry() in add_mtd_device()matthias@kaehlcke.net2008-06-041-3/+2
| | | | | Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] Unlocking all Intel flash that is locked on power up.Justin Treon2008-02-031-1/+1
| | | | | | | | | | | | | | | | | | Patch for unlocking all Intel flash that has instant locking on power up. The patch has been tested on Intel M18, P30 and J3D Strata Flash. 1. The automatic unlocking can be disabled for a particular partition in the map or the command line. a. For the bit mask in the map it should look like: .mask_flags = MTD_POWERUP_LOCK, b. For the command line parsing it should look like: mtdparts=0x80000(bootloader)lk 2. This will only unlock parts with instant individual block locking. Intel parts with legacy unlocking will not be unlocked. Signed-off-by: Justin Treon <justin_treon@yahoo.com> Signed-off-by: Jared Hulbert <jaredeh@gmail.com> Acked-by: Nicolas Pitre <nico@cam.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] mtdcore.c: share syms with mtd_blkdev.cBen Dooks2007-06-281-0/+2
| | | | | | | | | | | | Fix the sparse warnings generated by the implicit dependency of mtd_blkdevs.c and mtd_core.c for the two symbols mtd_table and mtd_table_mutex. This is done by adding an local header file mtdcore.h to define these (including the warning about the non-proliferation of these symbols). Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [PATCH] remove many unneeded #includes of sched.hTim Schmielau2007-02-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [MTD] Use EXPORT_SYMBOL_GPL() for exported symbols.David Woodhouse2006-11-291-9/+9
| | | | | | | | | | | | | | | | | | | | While we're fixing up the newly-added symbol, change the neighbouring ones too, for consistency and also to reflect the author's interpretation of the GPL -- which is that _no_ non-GPL modules are permitted. The author always intended his code to be released under the GPL, and believes that any new interpretation of 'EXPORT_SYMBOL' as being any different from 'EXPORT_SYMBOL_GPL' is entirely invalid; the GPL requires that _all_ exports have the semantics of the new 'EXPORT_SYMBOL_GPL', which means the extra four characters are entirely redundant. But since those four extra characters trigger the check for illegal modules in a way that just EXPORT_SYMBOL does not, it's useful to change anyway. This action in no way indicates an admission that there is any legal distinction between the two states, and in particular does not indicate that the author believes that non-GPL modules may use symbols exported with EXPORT_SYMBOL alone. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MTD] return error code from get_mtd_device()Artem Bityutskiy2006-11-291-11/+13
| | | | | | | get_mtd_device() returns NULL in case of any failure. Teach it to return an error code instead. Fix all users as well. Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
* [MTD] add get and put methodsArtem Bityutskiy2006-11-291-7/+30
| | | | | | | | | This patch adds get_device() and put_device() methods to the MTD description structure (struct mtd_info). These methods are called by MTD whenever the MTD device is get or put. They are needed when the underlying driver is something smarter then just flash chip driver, for example UBI. Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
* [MTD] add get_mtd_device_nm() functionArtem Bityutskiy2006-11-291-0/+38
| | | | | | | | | This patch adds one more function to the MTD interface to make it possible to open MTD devices by their names, not only numbers. This is very handy in many situations. Also, MTD device number depend on load order and may vary, while names are fixed. Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
* [MTD] Unlock NOR flash automatically where necessaryHåvard Skinnemoen2006-09-221-0/+10
| | | | | | | | | | | | | | | | | Introduce the MTD_STUPID_LOCK flag which indicates that the flash chip is always locked after power-up, so all sectors need to be unlocked before it is usable. If this flag is set, and the chip provides an unlock() operation, mtd_add_device will unlock the whole MTD device if it's writeable. This means that non-writeable partitions will stay locked. Set MTD_STUPID_LOCK in fixup_use_atmel_lock() so that these chips will work as expected. Signed-off-by: Håvard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-301-1/+0
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [MTD] assume mtd->writesize is 1 for NOR flashesArtem B. Bityutskiy2006-06-141-0/+1
| | | | Signed-off-by: Artem B. Bityitskiy
* [MTD] Remove the only useless readv implementationThomas Gleixner2006-05-251-32/+0
| | | | | | | Removing readv from struct mtd_info broke block2mtd. Remove the reference and the useless default implementation. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* [PATCH] Kill ifdefs in mtdcore.cPavel Machek2006-03-311-9/+4
| | | | | | | | | | | Kill unneccessary ifdefs in mtdcore.c. Signed-off-by: Pavel Machek <pavel@suse.cz> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sem2mutex: drivers/mtd/Ingo Molnar2006-03-311-16/+16
| | | | | | | | | | | | | Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [MTD] core: Clean up trailing white spacesThomas Gleixner2005-11-071-9/+9
| | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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