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  1. 12 Jul, 2012 4 commits
  3. 11 Jul, 2012 7 commits
    • Linus Walleij's avatar
      ARM: u300: convert to common clock · 50667d63
      Linus Walleij authored 
      This converts the U300 clock implementation over to use the common
struct clk and moves the implementation down into drivers/clk.
Since VCO isn't used in tree it was removed, it's not hard to
put it back in if need be.
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
[mturquette@linaro.org: trivial Makefile conflict]
Signed-off-by: default avatarMike Turquette <mturquette@linaro.org>
      50667d63
    • Rajendra Nayak's avatar
      clk: cache parent clocks only for muxes · 9ca1c5a4
      Rajendra Nayak authored 
      caching parent clocks makes sense only when a clock has more
than one parent (mux clocks).
Avoid doing this for every other clock.
Signed-off-by: default avatarRajendra Nayak <rnayak@ti.com>
[mturquette@linaro.org: removed extra parentheses]
Signed-off-by: default avatarMike Turquette <mturquette@linaro.org>
      9ca1c5a4
    • Mark Brown's avatar
      clk: wm831x: Add initial WM831x clock driver · f05259a6
      Mark Brown authored 
      The WM831x and WM832x series of PMICs contain a flexible clocking
subsystem intended to provide always on and system core clocks.  It
features:

- A 32.768kHz crystal oscillator which can optionally be used to pass
  through an externally generated clock.
- A FLL which can be clocked from either the 32.768kHz oscillator or
  the CLKIN pin.
- A CLKOUT pin which can bring out either the oscillator or the FLL
  output.
- The 32.768kHz clock can also optionally be brought out on the GPIO
  pins of the device.

This driver fully supports the 32.768kHz oscillator and CLKOUT.  The FLL
is supported only in AUTO mode, the full flexibility of the FLL cannot
currently be used.

Due to a lack of access to systems where the core SoC has been converted
to use the generic clock API this driver has been compile tested only.
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarMike Turquette <mturquette@linaro.org>
      f05259a6
    • Mark Brown's avatar
      clk: Constify struct clk_init_data · dc4cd941
      Mark Brown authored 
      Allow drivers to declare their clk_init_data const, the framework really
shouldn't be modifying the data.
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: default avatarMike Turquette <mturquette@linaro.org>
      dc4cd941
    • Rajendra Nayak's avatar
      clk: Add CLK_IS_BASIC flag to identify basic clocks · f7d8caad
      Rajendra Nayak authored 
      Most platforms end up using a mix of basic clock types and
some which use clk_hw_foo struct for filling in custom platform
information when the clocks don't fit into basic types supported.

In platform code, its useful to know if a clock is using a basic
type or clk_hw_foo, which helps platforms know if they can
safely use to_clk_hw_foo to derive the clk_hw_foo pointer from
clk_hw.

Mark all basic clocks with a CLK_IS_BASIC flag.
Signed-off-by: default avatarRajendra Nayak <rnayak@ti.com>
Signed-off-by: default avatarMike Turquette <mturquette@linaro.org>
      f7d8caad
    • Rajendra Nayak's avatar
      clk: Add support for rate table based dividers · 357c3f0a
      Rajendra Nayak authored 
      Some divider clks do not have any obvious relationship
between the divider and the value programmed in the
register. For instance, say a value of 1 could signify divide
by 6 and a value of 2 could signify divide by 4 etc.
Also there are dividers where not all values possible
based on the bitfield width are valid. For instance
a 3 bit wide bitfield can be used to program a value
from 0 to 7. However its possible that only 0 to 4
are valid values.

All these cases need the platform code to pass a simple
table of divider/value tuple, so the framework knows
the exact value to be written based on the divider
calculation and can also do better error checking.

This patch adds support for such rate table based
dividers and as part of the support adds a new
registration function 'clk_register_divider_table()'
and a new macro for static definition
'DEFINE_CLK_DIVIDER_TABLE'.
Signed-off-by: default avatarRajendra Nayak <rnayak@ti.com>
Signed-off-by: default avatarMike Turquette <mturquette@linaro.org>
      357c3f0a
    • Rajendra Nayak's avatar
      clk: Add support for power of two type dividers · 6d9252bd
      Rajendra Nayak authored 
      Quite often dividers and the value programmed in the
register have a relation of 'power of two', something like
value	div
0	1
1	2
2	4
3	8...

Add support for such dividers as part of clk-divider.

The clk-divider flag 'CLK_DIVIDER_POWER_OF_TWO' should be used
to define such clocks.
Signed-off-by: default avatarRajendra Nayak <rnayak@ti.com>
Signed-off-by: default avatarMike Turquette <mturquette@linaro.org>
      6d9252bd
  5. 08 Jul, 2012 3 commits
  7. 07 Jul, 2012 2 commits
    • Linus Torvalds's avatar
      Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm · cd6407fe
      Linus Torvalds authored 
      Pull ARM fixes from Russell King:
 "Last merge window, we had some updates from Al cleaning up the signal
  restart handling.  These have caused some problems on ARM, and while
  Al has some fixes, we have some concerns with Al's patches but we've
  been unsuccesful with discussing this.

  We have got to the point where we need to do something, and we've
  decided that the best solution is to revert the appropriate commits
  until Al is able to reply to us.

  Also included here are four patches to fix warnings that I've noticed
  in my build system, and one fix for kprobes test code."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: fix warning caused by wrongly typed arm_dma_limit
  ARM: fix warnings about atomic64_read
  ARM: 7440/1: kprobes: only test 'sub pc, pc, #1b-2b+8-2' on ARMv6
  ARM: 7441/1: perf: return -EOPNOTSUPP if requested mode exclusion is unavailable
  ARM: 7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK"
  ARM: 7442/1: Revert "remove unused restart trampoline"
  ARM: fix set_domain() macro
  ARM: fix mach-versatile/pci.c warning
      cd6407fe
    • Andy Lutomirski's avatar
      security: Minor improvements to no_new_privs documentation · c540521b
      Andy Lutomirski authored 
      The documentation didn't actually mention how to enable no_new_privs.
This also adds a note about possible interactions between
no_new_privs and LSMs (i.e. why teaching systemd to set no_new_privs
is not necessarily a good idea), and it references the new docs
from include/linux/prctl.h.
Suggested-by: default avatarRob Landley <rob@landley.net>
Signed-off-by: default avatarAndy Lutomirski <luto@amacapital.net>
Acked-by: default avatarKees Cook <keescook@chromium.org>
Signed-off-by: default avatarJames Morris <james.l.morris@oracle.com>
      c540521b
  9. 06 Jul, 2012 11 commits
  11. 05 Jul, 2012 13 commits
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