[PATCH v4 0/5] clk: clock deregistration support

[Sylwester Nawrocki]

This patch series implements clock deregistration in the common clock
framework. This is required for proper support of clock suppliers as
loadable modules.  Previous version of this series can be found at [1].

Changes since v3:
 - dropped exporting of __clk_get(), __clk_put(),
 - replaced WARN_ON() with WARN_ON_ONCE() in clk_nodrv_disable_unprepare()
   callback.

Changes since v2:
 - reordered the patches so the race condition is fixed before it can
   actually cause any issues,
 - fixed handling of NULL clock pointers in __clk_get(), __clk_put(),
 - added patch adding actual asignment of clk->owner; more details are
   discussed in that specific patch.

Changes since v1:
 - moved of_clk_{lock, unlock}, __of_clk_get_from_provider() function
   declaractions to a local header,
 - renamed clk_dummy_* to clk_nodrv_*.


[1] https://lkml.org/lkml/2013/8/23/289

Sylwester Nawrocki (5):
  clk: Provide not locked variant of of_clk_get_from_provider()
  clkdev: Fix race condition in clock lookup from device tree
  clk: Add common __clk_get(), __clk_put() implementations
  clk: Assign module owner of a clock being registered
  clk: Implement clk_unregister

 arch/arm/include/asm/clkdev.h      |    2 +
 arch/blackfin/include/asm/clkdev.h |    2 +
 arch/mips/include/asm/clkdev.h     |    2 +
 arch/sh/include/asm/clkdev.h       |    2 +
 drivers/clk/clk.c                  |  187 +++++++++++++++++++++++++++++++++--
 drivers/clk/clk.h                  |   16 +++
 drivers/clk/clkdev.c               |   12 ++-
 include/linux/clk-private.h        |    5 +
 include/linux/clk-provider.h       |    2 +
 include/linux/clkdev.h             |    5 +
 10 files changed, 222 insertions(+), 13 deletions(-)
 create mode 100644 drivers/clk/clk.h

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1.7.4.1