Commit Graph

3256 Commits

Author SHA1 Message Date
Artem Bityutskiy 12027f1b3f UBI: correct ubi_wl_flush locking
Commit "62f38455 UBI: modify ubi_wl_flush function to clear work queue for a lnum"
takes the 'work_sem' semaphore in write mode for the entire loop, which is not
very good because it will block other workers for potentially long time. We do
not need to have it in write mode - read mode is enough, and we do not need to
hole it over the entire loop. So this patch turns changes the locking: takes
'work_sem' in read mode and pushes it down to the loop.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-06-07 15:22:21 +03:00
Artem Bityutskiy e9b4cf2094 UBI: fix debugfs-less systems support
Commit "aa44d1d UBI: remove Kconfig debugging option" broke UBI and it
refuses to initialize if debugfs (CONFIG_DEBUG_FS) is disabled. I incorrectly
assumed that debugfs files creation function will return success if debugfs
is disabled, but they actually return -ENODEV. This patch fixes the issue.

Reported-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Tested-by: Paul Parsons <lost.distance@yahoo.com>
2012-06-07 10:43:54 +03:00
Linus Torvalds f5e7e844a5 - More robust parsing especially of xattr data in JFFS2
- Updates to mxc_nand and gpmi drivers to support new boards and device tree
  - Improve consistency of information about ECC strength in NAND devices
  - Clean up partition handling of plat_nand
  - Support NAND drivers without dedicated access to OOB area
  - BCH hardware ECC support for OMAP
  - Other fixes and cleanups, and a few new device IDs
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Merge tag 'for-linus-3.5-20120601' of git://git.infradead.org/linux-mtd

Pull mtd update from David Woodhouse:
 - More robust parsing especially of xattr data in JFFS2
 - Updates to mxc_nand and gpmi drivers to support new boards and device tree
 - Improve consistency of information about ECC strength in NAND devices
 - Clean up partition handling of plat_nand
 - Support NAND drivers without dedicated access to OOB area
 - BCH hardware ECC support for OMAP
 - Other fixes and cleanups, and a few new device IDs

Fixed trivial conflict in drivers/mtd/nand/gpmi-nand/gpmi-nand.c due to
added include files next to each other.

* tag 'for-linus-3.5-20120601' of git://git.infradead.org/linux-mtd: (75 commits)
  mtd: mxc_nand: move ecc strengh setup before nand_scan_tail
  mtd: block2mtd: fix recursive call of mtd_writev
  mtd: gpmi-nand: define ecc.strength
  mtd: of_parts: fix breakage in Kconfig
  mtd: nand: fix scan_read_raw_oob
  mtd: docg3 fix in-middle of blocks reads
  mtd: cfi_cmdset_0002: Slight cleanup of fixup messages
  mtd: add fixup for S29NS512P NOR flash.
  jffs2: allow to complete xattr integrity check on first GC scan
  jffs2: allow to discriminate between recoverable and non-recoverable errors
  mtd: nand: omap: add support for hardware BCH ecc
  ARM: OMAP3: gpmc: add BCH ecc api and modes
  mtd: nand: check the return code of 'read_oob/read_oob_raw'
  mtd: nand: remove 'sndcmd' parameter of 'read_oob/read_oob_raw'
  mtd: m25p80: Add support for Winbond W25Q80BW
  jffs2: get rid of jffs2_sync_super
  jffs2: remove unnecessary GC pass on sync
  jffs2: remove unnecessary GC pass on umount
  jffs2: remove lock_super
  mtd: gpmi: add gpmi support for mx6q
  ...
2012-06-01 16:55:42 -07:00
Sascha Hauer 4a43faf54e mtd: mxc_nand: move ecc strengh setup before nand_scan_tail
Since commit 6a918bade9, the mxc_nand driver
fails with:

Driver must set ecc.strength when using hardware ECC

This is because nand_scan_tail checks for correct ecc strength
settings, so we must set them up before nand_scan_tail.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: stable@vger.kernel.org [3.4+]
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-06-01 20:23:29 +01:00
Gabor Juhos 2e24e32e27 mtd: block2mtd: fix recursive call of mtd_writev
The 'mtd_writev' interface calls the function assigned
to the '_write' field of a given mtd device if that is
not NULL. The block2mtd driver sets the '_writev' field
to the 'mtd_writev' function itself and thus causes a
endless loop.

This is caused by 1dbebd3256
(mtd: harmonize mtd_writev usage).

Remove the assignment from the block2mtd driver to fix the
issue.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: stable@kernel.org [3.3+]
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-06-01 20:23:19 +01:00
Marek Vasut 5636ce0f07 mtd: gpmi-nand: define ecc.strength
Fix an issue which was introduced by the recent addition of ecc.strength.

The ecc.strength wasn't set in gpmi-nand, resulting in the following crash:
[    2.550000] kernel BUG at drivers/mtd/nand/nand_base.c:3347!
...
[    2.550000] [<c020841c>] (nand_scan_tail+0x328/0x650) from [<c02f68e0>] (gpmi_nand_probe+0x43c/0x5a4)
[    2.550000] [<c02f68e0>] (gpmi_nand_probe+0x43c/0x5a4) from [<c01f6618>] (platform_drv_probe+0x14/0x18)
[    2.550000] [<c01f6618>] (platform_drv_probe+0x14/0x18) from [<c01f55b0>] (driver_probe_device+0x74/0x1fc)
[    2.550000] [<c01f55b0>] (driver_probe_device+0x74/0x1fc) from [<c01f57cc>] (__driver_attach+0x94/0x98)
[    2.550000] [<c01f57cc>] (__driver_attach+0x94/0x98) from [<c01f3d40>] (bus_for_each_dev+0x50/0x80)
[    2.550000] [<c01f3d40>] (bus_for_each_dev+0x50/0x80) from [<c01f4e18>] (bus_add_driver+0x188/0x25c)
[    2.550000] [<c01f4e18>] (bus_add_driver+0x188/0x25c) from [<c01f5a70>] (driver_register+0x78/0x138)
[    2.550000] [<c01f5a70>] (driver_register+0x78/0x138) from [<c043dc7c>] (gpmi_nand_init+0xc/0x30)
[    2.550000] [<c043dc7c>] (gpmi_nand_init+0xc/0x30) from [<c0008824>] (do_one_initcall+0x108/0x17c)
[    2.550000] [<c0008824>] (do_one_initcall+0x108/0x17c) from [<c042a8b8>] (kernel_init+0xfc/0x1bc)
[    2.550000] [<c042a8b8>] (kernel_init+0xfc/0x1bc) from [<c000fab4>] (kernel_thread_exit+0x0/0x8)

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-06-01 20:22:21 +01:00
Frank Svendsboe 2e929d001e mtd: of_parts: fix breakage in Kconfig
MTD_OF_PARTS and the default setting is not working due to using 'Y'
instead of 'y', introduced in commit
d6137badef. This made our board, and
possibly other boards using DTS defined partitions and not having
CONFIG_MTD_OF_PARTS=y defined in the defconfig, fail to mount root.

Signed-off-by: Frank Svendsboe <frank.svendsboe@gmail.com>
Cc: stable@kernel.org [3.2+]
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-06-01 20:06:59 +01:00
Linus Torvalds 7e5b2db77b Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "The whole series has been sitting in -next for quite a while with no
  complaints.  The last change to the series was before the weekend the
  removal of an SPI patch which Grant - even though previously acked by
  himself - appeared to raise objections.  So I removed it until the
  situation is clarified.  Other than that all the patches have the acks
  from their respective maintainers, all MIPS and x86 defconfigs are
  building fine and I'm not aware of any problems introduced by this
  series.

  Among the key features for this patch series is a sizable patchset for
  Lantiq which among other things introduces support for Lantiq's
  flagship product, the FALCON SOC.  It also means that the opensource
  developers behind this patchset have overtaken Lantiq's competing
  inhouse development team that was working behind closed doors.

  Less noteworthy the ath79 patchset which adds support for a few more
  chip variants, cleanups and fixes.  Finally the usual dose of tweaking
  of generic code."

Fix up trivial conflicts in arch/mips/lantiq/xway/gpio_{ebu,stp}.c where
printk spelling fixes clashed with file move and eventual removal of the
printk.

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (81 commits)
  MIPS: lantiq: remove orphaned code
  MIPS: Remove all -Wall and almost all -Werror usage from arch/mips.
  MIPS: lantiq: implement support for FALCON soc
  MTD: MIPS: lantiq: verify that the NOR interface is available on falcon soc
  MTD: MIPS: lantiq: implement OF support
  watchdog: MIPS: lantiq: implement OF support and minor fixes
  SERIAL: MIPS: lantiq: implement OF support
  GPIO: MIPS: lantiq: convert gpio-stp-xway to OF
  GPIO: MIPS: lantiq: convert gpio-mm-lantiq to OF and of_mm_gpio
  GPIO: MIPS: lantiq: move gpio-stp and gpio-ebu to the subsystem folder
  MIPS: pci: convert lantiq driver to OF
  MIPS: lantiq: convert dma to platform driver
  MIPS: lantiq: implement support for clkdev api
  MIPS: lantiq: drop ltq_gpio_request() and gpio_to_irq()
  OF: MIPS: lantiq: implement irq_domain support
  OF: MIPS: lantiq: implement OF support
  MIPS: lantiq: drop mips_machine support
  OF: PCI: const usage needed by MIPS
  MIPS: Cavium: Remove smp_reserve_lock.
  MIPS: Move cache setup to setup_arch().
  ...
2012-05-29 18:27:19 -07:00
Dmitry Maluka 34a5704d91 mtd: nand: fix scan_read_raw_oob
It seems there is a bug in scan_read_raw_oob() in nand_bbt.c which
should cause wrong functioning of NAND_BBT_SCANALLPAGES option.

Artem: the patch did not apply and I had to amend it a bit.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: stable@kernel.org
2012-05-29 11:14:58 +03:00
Robert Jarzmik 52c2d9aad4 mtd: docg3 fix in-middle of blocks reads
Corner case reads do not work, and return false data and
ECC. This case is typically seen in a ubifs usage, with a
read of type:
 - docg3 docg3: doc_read_oob(from=14882415, mode=1,
 data=(c30eca40:12), oob=(  (null):0))

This results in the following reads:
 - docg3 docg3: doc_read_data_area(buf=  (null), len=111)
 - docg3 docg3: doc_read_data_area(buf=c30eca40, len=12)
 - docg3 docg3: doc_read_data_area(buf=  (null), len=389)
 - docg3 docg3: doc_read_data_area(buf=  (null), len=0)
 - docg3 docg3: doc_read_data_area(buf=  (null), len=16)

If we suppose that the pages content is :
 - bytes 0 .. 111   : 0x0a
 - bytes 112 .. 255 : 0x0f
Then the returned bytes will be :
 - 111 times 0x0a (correct)
 - 0x0a 2 times and 0x0f 10 times (incorrect, should be
 0x0a,0x0f)
 - 0x0f 389 times (correct)
 - nothing
 - correct OOB

The reason seams that the first 111 bytes read ends between
the 2 docg3 planes, and that the first following read (in
the 12 bytes sequence, read of 16 bit word) returns the byte
of the rightmost plane duplicated in high and lower byte of
the word.

Fix this behaviour by ensuring that if the previous read
ended up in-between the 2 planes, there will be a first 1
byte read to get back to the beginning of leftmost plane.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-29 11:14:51 +03:00
Linus Torvalds 2795343705 arm-soc: clock driver changes
The new clock subsystem was merged in linux-3.4 without any users, this
 now moves the first three platforms over to it: imx, mxs and spear.
 
 The series also contains the changes for the clock subsystem itself,
 since Mike preferred to have it together with the platforms that require
 these changes, in order to avoid interdependencies and conflicts.
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Merge tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc clock driver changes from Olof Johansson:
 "The new clock subsystem was merged in linux-3.4 without any users,
  this now moves the first three platforms over to it: imx, mxs and
  spear.

  The series also contains the changes for the clock subsystem itself,
  since Mike preferred to have it together with the platforms that
  require these changes, in order to avoid interdependencies and
  conflicts."

Fix up trivial conflicts in arch/arm/mach-kirkwood/common.c (code
removed in one branch, added OF support in another) and
drivers/dma/imx-sdma.c (independent changes next to each other).

* tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits)
  clk: Fix CLK_SET_RATE_GATE flag validation in clk_set_rate().
  clk: Provide dummy clk_unregister()
  SPEAr: Update defconfigs
  SPEAr: Add SMI NOR partition info in dts files
  SPEAr: Switch to common clock framework
  SPEAr: Call clk_prepare() before calling clk_enable
  SPEAr: clk: Add General Purpose Timer Synthesizer clock
  SPEAr: clk: Add Fractional Synthesizer clock
  SPEAr: clk: Add Auxiliary Synthesizer clock
  SPEAr: clk: Add VCO-PLL Synthesizer clock
  SPEAr: Add DT bindings for SPEAr's timer
  ARM i.MX: remove now unused clock files
  ARM: i.MX6: implement clocks using common clock framework
  ARM i.MX35: implement clocks using common clock framework
  ARM i.MX5: implement clocks using common clock framework
  ARM: Kirkwood: Replace clock gating
  ARM: Orion: Audio: Add clk/clkdev support
  ARM: Orion: PCIE: Add support for clk
  ARM: Orion: XOR: Add support for clk
  ARM: Orion: CESA: Add support for clk
  ...
2012-05-26 12:42:29 -07:00
Linus Torvalds 6133308ad1 UBIFS:
* Always support xattrs    (remove the Kconfig option)
    * Always support debugging (remove the Kconfig option)
    * A fix for a memory leak on error path
    * A number of clean-ups
 UBI:
    * Always support debugging (remove the Kconfig option)
    * Remove "data type" hint support
    * Huge amount of renames to prepare for the fastmap wor
    * A lot of clean-ups
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Merge tag 'upstream-3.5-rc1' of git://git.infradead.org/linux-ubifs

Pull UBI and UBIFS updates from Artem Bityutskiy:

UBIFS:
   * Always support xattrs    (remove the Kconfig option)
   * Always support debugging (remove the Kconfig option)
   * A fix for a memory leak on error path
   * A number of clean-ups
UBI:
   * Always support debugging (remove the Kconfig option)
   * Remove "data type" hint support
   * Huge amount of renames to prepare for the fastmap wor
   * A lot of clean-ups

* tag 'upstream-3.5-rc1' of git://git.infradead.org/linux-ubifs: (54 commits)
  UBI: modify ubi_wl_flush function to clear work queue for a lnum
  UBI: introduce UBI_ALL constant
  UBI: add lnum and vol_id to struct ubi_work
  UBI: add volume id struct ubi_ainf_peb
  UBI: add in hex the value for UBI_INTERNAL_VOL_START to comment
  UBI: rename scan.c to attach.c
  UBI: remove scan.h
  UBI: rename UBI_SCAN_UNKNOWN_EC
  UBI: move and rename attach_by_scanning
  UBI: rename _init_scan functions
  UBI: amend comments after all the renamings
  UBI: rename ubi_scan_leb_slab
  UBI: rename ubi_scan_move_to_list
  UBI: rename ubi_scan_destroy_ai
  UBI: rename ubi_scan_get_free_peb
  UBI: rename ubi_scan_rm_volume
  UBI: rename ubi_scan_find_av
  UBI: rename ubi_scan_add_used
  UBI: remove unused function
  UBI: make ubi_scan_erase_peb static and rename
  ...
2012-05-22 19:30:27 -07:00
Linus Torvalds e8650a0823 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial updates from Jiri Kosina:
 "As usual, it's mostly typo fixes, redundant code elimination and some
  documentation updates."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (57 commits)
  edac, mips: don't change code that has been removed in edac/mips tree
  xtensa: Change mail addresses of Hannes Weiner and Oskar Schirmer
  lib: Change mail address of Oskar Schirmer
  net: Change mail address of Oskar Schirmer
  arm/m68k: Change mail address of Sebastian Hess
  i2c: Change mail address of Oskar Schirmer
  net: Fix tcp_build_and_update_options comment in struct tcp_sock
  atomic64_32.h: fix parameter naming mismatch
  Kconfig: replace "--- help ---" with "---help---"
  c2port: fix bogus Kconfig "default no"
  edac: Fix spelling errors.
  qla1280: Remove redundant NULL check before release_firmware() call
  remoteproc: remove redundant NULL check before release_firmware()
  qla2xxx: Remove redundant NULL check before release_firmware() call.
  aic94xx: Get rid of redundant NULL check before release_firmware() call
  tehuti: delete redundant NULL check before release_firmware()
  qlogic: get rid of a redundant test for NULL before call to release_firmware()
  bna: remove redundant NULL test before release_firmware()
  tg3: remove redundant NULL test before release_firmware() call
  typhoon: get rid of redundant conditional before all to release_firmware()
  ...
2012-05-22 19:22:50 -07:00
Linus Torvalds f6a26ae769 arm-soc: board specific changes
While we generally attempt to get rid of board specific files and replace
 them with device tree based descriptions, a lot of platforms have not
 come that far:
 
 In shmobile, we add two new board files because their recently started
 effort to add DT support has not proceeded enough to use it for all of
 the important hardware.
 
 In Kirkwood, we are adding support for new boards with a combination of
 DT and board file contents in multiple cases.
 
 pxa/mmp and imx are extending support for existing board files but not
 adding new ones.
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Merge tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm-soc board specific changes from Olof Johansson:
 "While we generally attempt to get rid of board specific files and
  replace them with device tree based descriptions, a lot of platforms
  have not come that far:

  In shmobile, we add two new board files because their recently started
  effort to add DT support has not proceeded enough to use it for all of
  the important hardware.

  In Kirkwood, we are adding support for new boards with a combination
  of DT and board file contents in multiple cases.

  pxa/mmp and imx are extending support for existing board files but not
  adding new ones."

Fix up trivial conflicts in arch/arm/mach-{mmp/ttc_dkb.c,shmobile/{Kconfig,Makefile}}

* tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (94 commits)
  ARM: shmobile: fix smp build
  ARM: kirkwood: Add support for RaidSonic IB-NAS6210/6220 using devicetree
  kirkwood: Add iconnect support
  orion/kirkwood: create a generic function for gpio led blinking
  kirkwood/orion: fix orion_gpio_set_blink
  ARM: kirkwood: Define DNS-320/DNS-325 NAND in fdt
  kirkwood: Allow nand to be configured via. devicetree
  mtd: Add orion_nand devicetree bindings
  ARM: kirkwood: Basic support for DNS-320 and DNS-325
  ARM: mach-shmobile: Use DT_MACHINE for armadillo 800 eva
  ARM: mach-shmobile: Use DT_MACHINE for KZM9G
  ARM: pxa: hx4700: Add Synaptics NavPoint touchpad
  ARM: pxa: Use REGULATOR_SUPPLY macro
  ARM: mach-shmobile: kzm9g: enable SMP boot
  ARM: mach-shmobile: kzm9g: defconfig update
  ARM: mach-shmobile: kzm9g: add PCF8757 gpio-key
  ARM: mach-shmobile: kzm9g: add SDHI support
  ARM: mach-shmobile: kzm9g: add MMCIF support
  ARM: mach-shmobile: kzm9g: correct screen direction
  ARM: mach-shmobile: sh73a0.h: add GPIO_NR
  ...
2012-05-22 13:32:53 -07:00
Linus Torvalds 813a95e5b4 arm-soc: soc-specific pinctrl changes
With this, five platforms are moving to the relatively new pinctrl
 subsystem for their pin management, replacing the older soc specific
 in-kernel interfaces with common code.
 
 There is quite a bit of net addition of code for each platform being
 added to the pinctrl subsystem. but the payback comes later when adding
 new boards can be done by only providing new device trees instead.
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Merge tag 'pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull arm soc-specific pinctrl changes from Olof Johansson:
 "With this, five platforms are moving to the relatively new pinctrl
  subsystem for their pin management, replacing the older soc specific
  in-kernel interfaces with common code.

  There is quite a bit of net addition of code for each platform being
  added to the pinctrl subsystem.  But the payback comes later when
  adding new boards can be done by only providing new device trees
  instead."

Fix up trivial conflicts in arch/arm/mach-ux500/{Makefile,board-mop500.c}

* tag 'pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (61 commits)
  mtd: nand: gpmi: fix compile error caused by pinctrl call
  ARM: PRIMA2: select PINCTRL and PINCTRL_SIRF in Kconfig
  ARM: nomadik: enable PINCTRL_NOMADIK where needed
  ARM: mxs: enable pinctrl support
  video: mxsfb: adopt pinctrl support
  ASoC: mxs-saif: adopt pinctrl support
  i2c: mxs: adopt pinctrl support
  mtd: nand: gpmi: adopt pinctrl support
  mmc: mxs-mmc: adopt pinctrl support
  serial: mxs-auart: adopt pinctrl support
  serial: amba-pl011: adopt pinctrl support
  spi/imx: adopt pinctrl support
  i2c: imx: adopt pinctrl support
  can: flexcan: adopt pinctrl support
  net: fec: adopt pinctrl support
  ARM: ux500: switch MSP to using pinctrl for pins
  ARM: ux500: alter MSP registration to return a device pointer
  ARM: ux500: switch to using pinctrl for uart0
  ARM: ux500: delete custom pin control system
  ARM: ux500: switch over to Nomadik pinctrl driver
  ...
2012-05-22 09:39:42 -07:00
Linus Torvalds 9bc747bea5 arm-soc: First batch of cleanups
These cleanups are basically all over the place. The idea is to collect
 changes with minimal impact but large number of changes so we can avoid
 them from distracting in the diffstat in the other series.
 
 A significant number of lines get removed here, in particular because
 the ixp2000 and ixp23xx platforms get removed. These have never been
 extremely popular and have fallen into disuse over time with no active
 maintainer taking care of them. The u5500 soc never made it into a
 product, so we are removing it from the ux500 platform.
 
 Many good cleanups also went into the at91 and omap platforms, as has
 been the case for a number of releases.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull first batch of arm-soc cleanups from Olof Johansson:
 "These cleanups are basically all over the place.  The idea is to
  collect changes with minimal impact but large number of changes so we
  can avoid them from distracting in the diffstat in the other series.

  A significant number of lines get removed here, in particular because
  the ixp2000 and ixp23xx platforms get removed.  These have never been
  extremely popular and have fallen into disuse over time with no active
  maintainer taking care of them.  The u5500 soc never made it into a
  product, so we are removing it from the ux500 platform.

  Many good cleanups also went into the at91 and omap platforms, as has
  been the case for a number of releases."

Trivial modify-delete conflicts in arch/arm/mach-{ixp2000,ixp23xx}

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (152 commits)
  ARM: clps711x: Cleanup IRQ handling
  ARM clps711x: Removed unused header mach/time.h
  ARM: clps711x: Added note about support EP731x CPU to Kconfig
  ARM: clps711x: Added missing register definitions
  ARM: clps711x: Used own subarch directory for store header file
  Dove: Fix Section mismatch warnings
  ARM: orion5x: ts78xx debugging changes
  ARM: orion5x: remove PM dependency from ts78xx
  ARM: orion5x: ts78xx fix NAND resource off by one
  ARM: orion5x: ts78xx whitespace cleanups
  Orion5x: Fix Section mismatch warnings
  Orion5x: Fix warning: struct pci_dev declared inside paramter list
  ARM: clps711x: Combine header files into one for clps711x-targets
  ARM: S3C24XX: Use common macro to define resources on mach-qt2410.c
  ARM: S3C24XX: Use common macro to define resources on mach-osiris.c
  ARM: EXYNOS: Adapt to cpuidle core time keeping and irq enable
  ARM: S5PV210: Use common macro to define resources on mach-smdkv210.c
  ARM: S5PV210: Use common macro to define resources on dev-audio.c
  ARM: S5PC100: Use common macro to define resources on dev-audio.c
  ARM: S5P64X0: Use common macro to define resources on dev-audio.c
  ...
2012-05-22 09:23:24 -07:00
John Crispin fa09eded0e MTD: MIPS: lantiq: verify that the NOR interface is available on falcon soc
When running on a FALC-ON SoC, we need to check the bootstrap options to see
if NOR is available.

Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: linux-mtd@lists.infradead.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3815/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-21 14:31:55 +01:00
John Crispin 02fa961fbf MTD: MIPS: lantiq: implement OF support
Adds bindings for OF and make use of module_platform_driver for lantiq
based socs.

Signed-off-by: John Crispin <blogic@openwrt.org>
Acked-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: linux-mtd@lists.infradead.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3811/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-05-21 14:31:55 +01:00
Joel Reardon 62f384552b UBI: modify ubi_wl_flush function to clear work queue for a lnum
This patch modifies ubi_wl_flush to force the erasure of
particular volume id / logical eraseblock number pairs. Previous functionality
is preserved when passing UBI_ALL for both values. The locations where ubi_wl_flush
were called are appropriately changed: ubi_leb_erase only flushes for the
erased LEB, and ubi_create_volume forces only flushing for its volume id.
External code can call this new feature via the new function ubi_flush() added
to kapi.c, which simply passes through to ubi_wl_flush().

This was tested by disabling the call to do_work in ubi thread, which results
in the work queue remaining unless explicitly called to remove. UBIFS was
changed to call ubifs_leb_change 50 times for four different LEBs. Then the
new function was called to clear the queue: passing wrong volume ids / lnum,
correct ones, and finally UBI_ALL for both to ensure it was finally all
cleard. The work queue was dumped each time and the selective removal
of the particular LEB numbers was observed. Extra checks were enabled and
ubifs's integck was also run. Finally, the drive was repeatedly filled and
emptied to ensure that the queue was cleared normally.

Artem: amended the patch.

Signed-off-by: Joel Reardon <reardonj@inf.ethz.ch>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-21 11:34:41 +03:00
Artem Bityutskiy 05a3cb7dce UBI: introduce UBI_ALL constant
Joel will use it in his 'ubi_flush()' extention to specify all eraseblocks.
Also amend the comment for UBI_UNKNOWN - it is used beyond attaching info
structure now.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-21 11:34:41 +03:00
Joel Reardon d36e59e69b UBI: add lnum and vol_id to struct ubi_work
This is part of a multipart patch to allow UBI to force the erasure of
particular logical eraseblock numbers. In this patch, the volume id and LEB
number are added to ubi_work data structure, and both are also passed as a
parameter to schedule erase to set it appropriately. Whenever ubi_wl_put_peb
is called, the lnum is also passed to be forwarded to schedule erase. Later,
a new ubi_sync_lnum will be added to execute immediately all work related to
that lnum.

This was tested by outputting the vol_id and lnum during the schedule of
erasure. The ubi thread was disabled and two ubifs drives on separate
partitions repeated changed a small number of LEBs. The ubi module was readded,
and all the erased LEBs, corresponding to the volumes, were added to the
schedule erase queue.

Artem: minor tweaks

Signed-off-by: Joel Reardon <reardonj@inf.ethz.ch>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-21 11:34:41 +03:00
Joel Reardon 6dd3bc7e60 UBI: add volume id struct ubi_ainf_peb
This patch adds the volume id to struct ubi_ainf_peb when scanning the LEBs at
startup. PEBs now added to the erase queue will know their original LEB number
and volume id, if available, and will be -1 otherwise (for instance, if the VID
header is unreadable).

This was tested by creating an ubi device with 3 volumes and disabiling the
ubi_thread's do_work functionality. The different ubi volumes were formatted
to ubifs and had files created and erased.  The ubi modules was reloaded and
the list of LEB's added to the erased list was outputted, confirming the
volume ids and LEB numbers were appropriate.

Signed-off-by: Joel Reardon <reardonj@inf.ethz.ch>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-21 11:34:41 +03:00
Joel Reardon 5cc09420e2 UBI: add in hex the value for UBI_INTERNAL_VOL_START to comment
Explicitly provide the first internal volume ID value in the comment for
UBI_INTERNAL_VOL_START. This allows developers who, when adding features
related to volume ids and observe unexpected very large volume ids, to grep
for the observed value in the source code and find out immediately that it is
expected behaviour.

Signed-off-by: Joel Reardon <reardonj@inf.ethz.ch>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 21:30:45 +03:00
Artem Bityutskiy ae4a8104e3 UBI: rename scan.c to attach.c
Finally, rename the scan.c file. Now adding fastmap support won't look that
hacky anymore.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 21:01:28 +03:00
Artem Bityutskiy 0479ab48bb UBI: remove scan.h
This file is small and it does not make sense to have it separate from where
everything else lives, so merge it with ubi.h.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 21:01:28 +03:00
Artem Bityutskiy 9c47fb2fbe UBI: rename UBI_SCAN_UNKNOWN_EC
Rename the constant to UBI_UNKNOWN, for the same reason that we are going
to add nother attaching method and re-use the same data structures, so the
"SCAN" in the name becomes incorrect. I've also removed the "_EC" part because
Joel is going to use this constant for other fields in the attaching info data
structures.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 21:01:28 +03:00
Artem Bityutskiy 47e1ec70b2 UBI: move and rename attach_by_scanning
Rename the 'attach_by_scanning()' function to 'ubi_attach()' and move it to
scan.c. Richard will plug his fastmap stuff there.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:04 +03:00
Artem Bityutskiy 41e0cd9d4e UBI: rename _init_scan functions
We have a couple of initialization funcntionsn left which have "_scan" suffic -
rename them:

ubi_eba_init_scan() -> ubi_eba_init()
ubi_wl_init_scan() -> ubi_wl_init()

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:04 +03:00
Artem Bityutskiy fbd0107f4d UBI: amend comments after all the renamings
This patch amends commentaries in scan.[ch] to match the new logic. Reminder -
we did the restructuring to prepare the code for adding the fastmap. This patch
also renames a couple of functions - it was too difficult to separate out that
change and I decided that it is not too bad to have it in the same patch with
commentaries changes.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:04 +03:00
Artem Bityutskiy 1fc2e3e59d UBI: rename ubi_scan_leb_slab
The old name is not logical anymore - rename it to 'aeb_slab_cache'.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:03 +03:00
Artem Bityutskiy 0bae2887a7 UBI: rename ubi_scan_move_to_list
The old name is not logical anymore - rename it to 'ubi_move_aeb_to_list()'.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:03 +03:00
Artem Bityutskiy 66a2af3824 UBI: rename ubi_scan_destroy_ai
The old name is not logical anymore - rename it to 'ubi_destroy_ai()'.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:03 +03:00
Artem Bityutskiy c87fbd7deb UBI: rename ubi_scan_get_free_peb
The old name is not logical anymore - rename it to 'ubi_early_get_peb()'.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:03 +03:00
Artem Bityutskiy d717dc2f85 UBI: rename ubi_scan_rm_volume
The old name is not logical anymore - rename it to 'ubi_remove_av()'.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:03 +03:00
Artem Bityutskiy dcd85fdd10 UBI: rename ubi_scan_find_av
The old name is not logical anymore - rename it to 'ubi_find_av()'.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:03 +03:00
Artem Bityutskiy 3561188ac2 UBI: rename ubi_scan_add_used
The old name is not logical anymore - rename it to 'ubi_add_to_av()'.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:02 +03:00
Artem Bityutskiy ee663d9292 UBI: remove unused function
The 'ubi_scan_find_aeb()' function is unused and thus can be removed.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:02 +03:00
Artem Bityutskiy 13d33dad35 UBI: make ubi_scan_erase_peb static and rename
The 'ubi_scan_erase_peb()' is used only in scan.c so can be static. Also
re-name it to 'early_erase_peb()' because we tend to use "ubi_" prefix only for
non-static fuction and also because the new name is better.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:02 +03:00
Artem Bityutskiy 517af48c05 UBI: rename sv to av
After re-naming the 'struct ubi_scan_volume' we should adjust all variables
named 'sv' to something else, because 'sv' stands for "scanning volume".
Let's rename it to 'av' which stands for "attaching volume" which is
a bit more consistent and has the same length, which makes re-naming easy.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
2012-05-20 20:26:02 +03:00
Artem Bityutskiy a4e6042f1d UBI: rename si to ai
After re-naming the 'struct ubi_scan_info' we should adjust all variables
named 'si' to something else, because 'si' stands for "scanning info".
Let's rename it to 'ai' which stands for "attaching info" which is
a bit more consistent and has the same length, which makes re-naming easy.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
2012-05-20 20:26:02 +03:00
Artem Bityutskiy 2c5ec5ce66 UBI: rename seb to aeb
After re-naming the 'struct ubi_scan_leb' we should adjust all variables
named 'seb' to something else, because 'seb' stands for "scanning eraseblock".
Let's rename it to 'aeb' which stands for "attaching eraseblock" which is
a bit more consistend and has the same length.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
2012-05-20 20:26:02 +03:00
Artem Bityutskiy 55e93e55aa UBI: amend comments after renaming in scan.c
Now some commentaries are out-of-date, after we re-named the data
structures - amend them.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
2012-05-20 20:26:01 +03:00
Artem Bityutskiy afc15a814b UBI: rename struct ubi_scan_info
Rename 'struct ubi_scan_info' to 'struct ubi_attach_info'. This is part
of the code re-structuring I am trying to do in order to add fastmap
in a more logical way. Fastmap can share a lot with scanning, including
the attach-time data structures, which all now have "scan" word in the
name. Let's get rid of this word.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
2012-05-20 20:26:01 +03:00
Artem Bityutskiy cb28a9322d UBI: rename struct ubi_scan_volume
Rename 'struct ubi_scan_volume' to 'struct ubi_ainf_volume'. This is part
of the code re-structuring I am trying to do in order to add fastmap
in a more logical way. Fastmap can share a lot with scanning, including
the attach-time data structures, which all now have "scan" word in the
name. Let's get rid of this word and use "ainf" instead which stands
for "attach information". It has the same length as "scan" so re-naming
is trivial.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
2012-05-20 20:26:01 +03:00
Artem Bityutskiy 227423d241 UBI: rename struct ubi_scan_leb
Rename 'struct ubi_scan_leb' to 'struct ubi_ainf_leb'. This is part
of the code re-structuring I am trying to do in order to add fastmap
in a more logical way. Fastmap can share a lot with scanning, including
the attach-time data structures, which all now have "scan" word in the
name. Let's get rid of this word and use "ainf" instead which stands
for "attach information". It has the same length as "scan" so re-naming
is trivial.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
2012-05-20 20:26:01 +03:00
Artem Bityutskiy 97d6104bac UBI: rename few functions for consistency
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:01 +03:00
Artem Bityutskiy e2986827d5 UBI: get rid of dbg_err
This patch removes the 'dbg_err()' macro and we now use 'ubi_err' instead.
The idea of 'dbg_err()' was to compile out some error message to make the
binary a bit smaller - but I think it was a bad idea.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:00 +03:00
Artem Bityutskiy 7bf523ae25 UBI: more of clean-up terminology for self-checks
We have the "sefl-check" feature in UBI, but for historical reasons many
corresponding functions and commentaries in the code use term "paranoid check"
instead. Let's clean this up and use "self-check" everywhere.

This patch renames functions, amends messages and kills several redundant
debugging messages.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:00 +03:00
Artem Bityutskiy 8056eb4ac4 UBI: clean-up terminology for self-checks in io.c
We have the "sefl-check" feature in UBI, but for historical reasons many
corresponding functions and commentaries in the code use term "paranoid check"
instead. Let's clean this up and use "self-check" everywhere.

This patch renames functions, amends comments and messages. It touches only the
io.c file.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:00 +03:00
Artem Bityutskiy aa44d1d35f UBI: remove Kconfig debugging option
This patch kills the UBI debugging Kconfig option completely and makes all the
debugging stuff to be always compiled-in. It was pain in the neck to maintain
this useless option because all users I am aware of have debugging enabled
anyway - how else will you diagnose errors otherwise?

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-05-20 20:26:00 +03:00