Common Clock Framework support for Samsung S3C64xx

Quoting Kukjin Kim (2013-08-05 10:01:36)

Quoted 80 lines · Tomasz Figa

Quoted 78 lines

This series is an attempt to move clock support on Samsung S3C64xx SoCs
to Common Clock Framework.

First, support for PLL types present on S3C64xx SoCs is added to Samsung
Common Clock Framework driver. Then the main clock driver for mentioned
SoCs is introduced. Further patches contain fixes for drivers to make them compliant with CCF semantics, migration of platform code to use the new clock driver and removal of old clock management code.

Depends on:
- [PATCH v4 00/20] Samsung PWM support cleanup

    http://thread.gmane.org/gmane.linux.kernel.samsung-soc/20856

On S3C6410-based Tiny6410 board (Mini6410-compatible):

Tested-by Tomasz Figa<[email protected]>

For v1:

Acked-by Mike Turquette<[email protected]>

Changes since v1:
- added patch for read-only muxes,
- exported configurable muxes and dividers,
- defined mout_syncmux as read-only mux,
- in DT-enabled case fixed-clock binding is used to define external clocks.> >
Tomasz Figa (8):
clk: mux: Add support for read-only muxes.
clk: samsung: pll: Add support for PLL6552 and PLL6553
clk: samsung: Add clock driver for S3C64xx SoCs
ARM: SAMSUNG: Add soc_is_s3c6400/s3c6410 macros
ARM: s3c64xx: dma: Use clk_prepare_enable/clk_disable_unprepare
usb: host: ohci-s3c2410 Use clk_prepare_enable/clk_disable_unprepare
ARM: s3c64xx: Migrate clock handling to Common Clock Framework
ARM: s3c64xx: Remove old clock management code

  .../bindings/clock/samsung,s3c64xx-clock.txt       |   77 ++
  arch/arm/Kconfig                                   |    2 +-
  arch/arm/mach-s3c64xx/Makefile                     |    2 +-
  arch/arm/mach-s3c64xx/clock.c                      | 1007
  -------------------- arch/arm/mach-s3c64xx/common.c               
       |   21 +-
  arch/arm/mach-s3c64xx/common.h                     |   12 +-
  arch/arm/mach-s3c64xx/dma.c                        |    4 +-
  arch/arm/mach-s3c64xx/include/mach/regs-clock.h    |  132 +--
  arch/arm/mach-s3c64xx/mach-anw6410.c               |    2 +-
  arch/arm/mach-s3c64xx/mach-crag6410.c              |    2 +-
  arch/arm/mach-s3c64xx/mach-hmt.c                   |    2 +-
  arch/arm/mach-s3c64xx/mach-mini6410.c              |    2 +-
  arch/arm/mach-s3c64xx/mach-ncp.c                   |    2 +-
  arch/arm/mach-s3c64xx/mach-smartq.c                |   11 +-
  arch/arm/mach-s3c64xx/mach-smdk6400.c              |    2 +-
  arch/arm/mach-s3c64xx/mach-smdk6410.c              |    2 +-
  arch/arm/mach-s3c64xx/pm.c                         |   21 -
  arch/arm/mach-s3c64xx/s3c6400.c                    |    6 -
  arch/arm/mach-s3c64xx/s3c6410.c                    |    7 -
  arch/arm/plat-samsung/include/plat/cpu.h           |    4 +
  drivers/clk/clk-mux.c                              |   10 +-
  drivers/clk/samsung/Makefile                       |    1 +
  drivers/clk/samsung/clk-pll.c                      |  160 ++++
  drivers/clk/samsung/clk-pll.h                      |    4 +
  drivers/clk/samsung/clk-s3c64xx.c                  |  465 +++++++++
  drivers/usb/host/ohci-s3c2410.c                    |    8 +-
  include/dt-bindings/clock/samsung,s3c64xx-clock.h  |  178 ++++
  include/linux/clk-provider.h                       |    2 +
  28 files changed, 943 insertions(+), 1205 deletions(-)

create mode 100644 Documentation/devicetree/bindings/clock/samsung,s3c64xx-clock.txt delete mode 100644 arch/arm/mach-s3c64xx/clock.c create mode 100644 drivers/clk/samsung/clk-s3c64xx.c create mode 100644 include/dt-bindings/clock/samsung,s3c64xx-clock.h

Quoted 3 lines

Basically, this series looks good to me, but I'm not sure how this should be handled because of dependency with PWM cleanup and clk stuff in clk tree now...

Patches 1-3 can go into the clk tree. 4-6 should go through their respective trees.

If you want I can take 7 & 8 through the clk tree.

Alternatively I can provide patches 1-3 in a separate stable topic branch for you to pull in as a dependency. We'll both merge that stable topic branch into our trees and you can make a note of it for the arm-soc folks.

Regards,
Mike

Quoted 1 line

- Kukjin

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