Eric Lee / smarc-fsl-linux-kernel

10 May, 2011

1 commit

08 Apr, 2011

1 commit

01 Apr, 2011

1 commit

31 Mar, 2011

1 commit

28 Feb, 2011

1 commit

21 Jan, 2011

1 commit

09 Dec, 2010

1 commit

  • 98b14d6b2   powerpc/powermac: Make auto-loading of therm_pm72 possible ... Browse Code »

    The therm_pm72 driver, used on the PowerMac G5 range, cannot be
    auto-loaded, since the driver itself creates both the device node
    and the driver instance.

    Moving the device node creation to the platform setup code and
    adding the necessary MODULE_DEVICE_TABLE() information allows the
    driver to be automatically loaded by udev on any semi-modern
    distribution.

    It "fixes" a major source of problem on G5 machines where the
    driver wasn't explicitely loaded by default, and the system
    would automatically shutdown under load.

    Tested on an Xserve G5.

    Signed-off-by: Marc Zyngier
    Cc: Benjamin Herrenschmidt
    Signed-off-by: Benjamin Herrenschmidt

    Marc Zyngier
     

06 Aug, 2010

1 commit

  • 2dc115813   of/device: Replace struct of_device with struct platform_device ... Browse Code »

    of_device is just an alias for platform_device, so remove it entirely. Also
    replace to_of_device() with to_platform_device() and update comment blocks.

    This patch was initially generated from the following semantic patch, and then
    edited by hand to pick up the bits that coccinelle didn't catch.

    @@
    @@
    -struct of_device
    +struct platform_device

    Signed-off-by: Grant Likely
    Reviewed-by: David S. Miller

    Grant Likely
     

22 May, 2010

1 commit

  • 4018294b5   of: Remove duplicate fields from of_platform_driver ... Browse Code »

    .name, .match_table and .owner are duplicated in both of_platform_driver
    and device_driver. This patch is a removes the extra copies from struct
    of_platform_driver and converts all users to the device_driver members.

    This patch is a pretty mechanical change. The usage model doesn't change
    and if any drivers have been missed, or if anything has been fixed up
    incorrectly, then it will fail with a compile time error, and the fixup
    will be trivial. This patch looks big and scary because it touches so
    many files, but it should be pretty safe.

    Signed-off-by: Grant Likely
    Acked-by: Sean MacLennan

    Grant Likely
     

19 May, 2010

1 commit

30 Mar, 2010

1 commit

  • 5a0e3ad6a   include cleanup: Update gfp.h and slab.h includes to prepare for breaking implic… ... Browse Code »

    …it 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>

    Tejun Heo
     

09 Mar, 2010

1 commit

09 Feb, 2010

1 commit

15 Jan, 2010

1 commit

  • 46759a7c1   powerpc/macintosh: Make Open Firmware device id constant ... Browse Code »

    The match_table field of the struct of_device_id is constant in
    so it is worth to make the initialization data also constant.

    The semantic match that finds this kind of pattern is as follows:
    (http://coccinelle.lip6.fr/)

    //
    @r@
    disable decl_init,const_decl_init;
    identifier I1, I2, x;
    @@
    struct I1 {
    ...
    const struct I2 *x;
    ...
    };
    @s@
    identifier r.I1, y;
    identifier r.x, E;
    @@
    struct I1 y = {
    .x = E,
    };
    @c@
    identifier r.I2;
    identifier s.E;
    @@
    const struct I2 E[] = ... ;
    @depends on !c@
    identifier r.I2;
    identifier s.E;
    @@
    + const
    struct I2 E[] = ...;
    //

    Signed-off-by: Márton Németh
    Cc: Julia Lawall
    Cc: cocci@diku.dk
    Signed-off-by: Benjamin Herrenschmidt

    Márton Németh
     

05 Oct, 2009

1 commit

16 Jun, 2009

1 commit

  • 1b9f37d48   therm_pm72: Convert to a new-style i2c driver ... Browse Code »

    The legacy i2c binding model is going away soon, so convert the
    macintosh therm_pm72 driver to the new model or it will break.

    This is really a quick and dirty conversion, that should do the trick
    for now, but no doubt that something cleaner can be done if anyone is
    interested.

    Signed-off-by: Jean Delvare
    Cc: Benjamin Herrenschmidt
    Tested-by: Paul Mackerras

    Jean Delvare
     

30 Jun, 2008

1 commit

05 May, 2008

1 commit

17 Jan, 2008

1 commit

  • 97759e494   [POWERPC] therm_pm72: Suppress some compile warnings ... Browse Code »

    We don't really care if any of these calls to device_create_file fails,
    so just issue warnings in that case.

    drivers/macintosh/therm_pm72.c: In function 'init_cpu_state':
    drivers/macintosh/therm_pm72.c:1185: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c:1186: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c:1187: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c:1188: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c:1189: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c:1191: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c:1192: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c:1193: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c:1194: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c:1195: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c: In function 'init_backside_state':
    drivers/macintosh/therm_pm72.c:1383: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c:1384: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c: In function 'init_drives_state':
    drivers/macintosh/therm_pm72.c:1503: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c:1504: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c: In function 'init_dimms_state':
    drivers/macintosh/therm_pm72.c:1625: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c: In function 'init_slots_state':
    drivers/macintosh/therm_pm72.c:1743: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result
    drivers/macintosh/therm_pm72.c:1744: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result

    Signed-off-by: Stephen Rothwell
    Signed-off-by: Paul Mackerras

    Stephen Rothwell
     

19 Dec, 2007

1 commit

20 Jul, 2007

1 commit

  • dd00cc486   some kmalloc/memset ->kzalloc (tree wide) ... Browse Code »

    Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).

    Here is a short excerpt of the semantic patch performing
    this transformation:

    @@
    type T2;
    expression x;
    identifier f,fld;
    expression E;
    expression E1,E2;
    expression e1,e2,e3,y;
    statement S;
    @@

    x =
    - kmalloc
    + kzalloc
    (E1,E2)
    ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
    - memset((T2)x,0,E1);

    @@
    expression E1,E2,E3;
    @@

    - kzalloc(E1 * E2,E3)
    + kcalloc(E1,E2,E3)

    [akpm@linux-foundation.org: get kcalloc args the right way around]
    Signed-off-by: Yoann Padioleau
    Cc: Richard Henderson
    Cc: Ivan Kokshaysky
    Acked-by: Russell King
    Cc: Bryan Wu
    Acked-by: Jiri Slaby
    Cc: Dave Airlie
    Acked-by: Roland Dreier
    Cc: Jiri Kosina
    Acked-by: Dmitry Torokhov
    Cc: Benjamin Herrenschmidt
    Acked-by: Mauro Carvalho Chehab
    Acked-by: Pierre Ossman
    Cc: Jeff Garzik
    Cc: "David S. Miller"
    Acked-by: Greg KH
    Cc: James Bottomley
    Cc: "Antonino A. Daplas"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yoann Padioleau
     

18 Jul, 2007

1 commit

  • 86313c488   usermodehelper: Tidy up waiting ... Browse Code »

    Rather than using a tri-state integer for the wait flag in
    call_usermodehelper_exec, define a proper enum, and use that. I've
    preserved the integer values so that any callers I've missed should
    still work OK.

    Signed-off-by: Jeremy Fitzhardinge
    Cc: James Bottomley
    Cc: Randy Dunlap
    Cc: Christoph Hellwig
    Cc: Andi Kleen
    Cc: Paul Mackerras
    Cc: Johannes Berg
    Cc: Ralf Baechle
    Cc: Bjorn Helgaas
    Cc: Joel Becker
    Cc: Tony Luck
    Cc: Kay Sievers
    Cc: Srivatsa Vaddagiri
    Cc: Oleg Nesterov
    Cc: David Howells

    Jeremy Fitzhardinge
     

09 May, 2007

1 commit

27 Apr, 2007

1 commit

26 Apr, 2007

1 commit

13 Apr, 2007

1 commit

04 Dec, 2006

1 commit

  • 7eebde700   [POWERPC] Souped-up of_platform_device support ... Browse Code »

    This patch first splits of_device.c and of_platform.c, the later containing
    the bits relative to of_platform_device's. On the "breaks" side of things,
    drivers uisng of_platform_device(s) need to include asm/of_platform.h now
    and of_(un)register_driver is now of_(un)register_platform_driver.

    In addition to a few utility functions to locate of_platform_device(s),
    the main new addition is of_platform_bus_probe() which allows the platform
    code to trigger an automatic creation of of_platform_devices for a whole
    tree of devices.

    The function acts based on the type of the various "parent" devices encountered
    from a provided root, using either a default known list of bus types that can be
    "probed" or a passed-in list. It will only register devices on busses matching
    that list, which mean that typically, it will not register PCI devices, as
    expected (since they will be picked up by the PCI layer).

    This will be used by Cell platforms using 4xx-type IOs in the Axon bridge
    and can be used by any embedded-type device as well.

    Signed-off-by: Benjamin Herrenschmidt
    Signed-off-by: Paul Mackerras

    Benjamin Herrenschmidt
     

31 Jul, 2006

1 commit

  • 018a3d1db   [POWERPC] powermac: Constify & voidify get_property() ... Browse Code »

    Now that get_property() returns a void *, there's no need to cast its
    return value. Also, treat the return value as const, so we can
    constify get_property later.

    powermac platform & macintosh driver changes.

    Built for pmac32_defconfig, g5_defconfig

    Signed-off-by: Jeremy Kerr
    Signed-off-by: Paul Mackerras

    Jeremy Kerr
     

07 Jul, 2006

1 commit

  • 861fa7737   [POWERPC] Xserve G5 thermal control fixes ... Browse Code »

    The thermal control for the Xserve G5s had a few issues. For one, the
    way to program the RPM fans speeds into the FCU is different between it
    and the desktop models, which I didn't figure out until recently, and it
    was missing a control loop for the slots fan, running it too fast. Both
    of those problems were causing the machine to be much more noisy than
    necessary. This patch also changes the fixed value of the slots fan for
    desktop G5s to 40% instead of 50%. It seems to still have a pretty good
    airflow that way and is much less noisy.

    Signed-off-by: Benjamin Herrenschmidt
    Signed-off-by: Paul Mackerras

    Benjamin Herrenschmidt
     

01 Jul, 2006

1 commit

23 Mar, 2006

1 commit

10 Jan, 2006

1 commit

07 Jan, 2006

2 commits

06 Jan, 2006

3 commits

  • 2b48716d1   [PATCH] I2C: Remove .owner setting from i2c_driver as it's no longer needed ... Browse Code »

    Now that i2c_add_driver() doesn't need the module owner to be set by
    hand, we can delete it from the drivers. This patch catches all of the
    drivers that I found in the current tree (if a driver sets the .owner by
    hand, it's not a problem, just not needed.)

    Signed-off-by: Greg Kroah-Hartman
    Cc: Jean Delvare

    Greg Kroah-Hartman
     
  • a33ca2323   [PATCH] i2c: Drop i2c_driver.{owner,name}, 4 of 11 ... Browse Code »

    We should use the i2c_driver.driver's .name and .owner fields
    instead of the i2c_driver's ones.

    This patch updates the drivers for macintosh.

    Signed-off-by: Laurent Riffard
    Signed-off-by: Jean Delvare
    Acked-by: Benjamin Herrenschmidt
    Signed-off-by: Greg Kroah-Hartman

    Laurent Riffard
     
  • 8a9947552   [PATCH] i2c: Drop i2c_driver.flags, 2 of 3 ... Browse Code »

    Just about every i2c chip driver sets the I2C_DF_NOTIFY flag, so we
    can simply make it the default and drop the flag. If any driver really
    doesn't want to be notified when i2c adapters are added, that driver
    can simply omit to set .attach_adapter. This approach is also more
    robust as it prevents accidental NULL pointer dereferences.

    Signed-off-by: Jean Delvare
    Signed-off-by: Greg Kroah-Hartman

    Jean Delvare
     

03 Jan, 2006

1 commit

  • f12f4d903   [PATCH] powerpc: more g5 overtemp problem fix ... Browse Code »

    Some G5s still occasionally experience shutdowns due to overtemp
    conditions despite the recent fix. After analyzing logs from such
    machines, it appears that the overtemp code is a bit too quick at
    shutting the machine down when reaching the critical temperature (tmax +
    8) and doesn't leave the fan enough time to actually cool it down. This
    happens if the temperature of a CPU suddenly rises too high in a very
    short period of time, or occasionally on boot (that is the CPUs are
    already overtemp by the time the driver loads).

    This patches makes the code a bit more relaxed, leaving a few seconds to
    the fans to do their job before kicking the machine shutown.

    Signed-off-by: Benjamin Herrenschmidt
    Signed-off-by: Linus Torvalds

    Benjamin Herrenschmidt
     

21 Dec, 2005

1 commit

  • 6ee7fb7e3   [PATCH] powerpc: g5 thermal overtemp bug ... Browse Code »

    The g5 thermal control for liquid cooled machines has a small bug, when
    the temperatures gets too high, it boosts all fans to the max, but
    incorrectly sets the liquids pump to the min instead of the max speed,
    thus causing the overtemp condition not to clear and the machine to shut
    down after a while. This fixes it to set the pumps to max speed instead.
    This problem might explain some of the reports of random shutdowns that
    some g5 users have been reporting in the past.

    Many thanks to Marcus Rothe for spending a lot of time trying various
    patches & sending log logs before I found out that typo. Note that
    overtemp handling is still not perfect and the machine might still
    shutdown, that patch should reduce if not eliminate such occcurences in
    "normal" conditions with high load. I'll implement a better handling
    with proper slowing down of the CPUs later.

    Signed-off-by: Benjamin Herrenschmidt
    Signed-off-by: Linus Torvalds

    Benjamin Herrenschmidt
     

07 Nov, 2005

1 commit