clk: exynos: add support for exynos5260 SoC

From: Rahul Sharma <[email protected]>

Add clock support for exynos5260 SoC.

This series is based on Tomasz Figa's samsung-next branch.

V6:
1) Listed external Clocks in documentation file.
2) Listed Input Clocks for each clock controller in exynos5260-clock.txt.
3) Added Clock and Clock-names properties.
4) Assigned IDs to all clocks in the clock file.
5) Moved all PHY clocks as fixed rate to the driver file.
6) Reorder clocks to maintain acscending order on the basis of clock register offset and bit numer.

V5:
1) Include S3c2412 and S3c2443 in clock provider patch.
2) Added SCLK_TOP_FIMD with CLK_IGNORE_UNUSED due to Suspend failure.
3) Moved exynos5260-clk.h to include/dt-bindings/clock.
4) Fix exynos5260_clk_sleep_init protoype for PM disabled.W
5) Moved fixed clock registeration to DT.
6) Removed CLK_IGNORE_UNUSED flags from UART clocks. Earlier facing issues because of RFS probing all TTYs.

V4:
1) Rework clock file as per Tomasz review comments at

         http://www.spinics.net/lists/arm-kernel/msg310116.html.

V3:
1) Removed "samsung,exynos5260-clock" property from clock files.
2) Replaced "__SPIN_LOCK_UNLOCKED(lock)" with spin_lock_init.
3) Removed '(' and ')' around numeric constants in macros.

V2:
1) Move suspend resume handling to Exynos5410 Clock file.
2) Removed Unused Macros and Condition checks for Exynos5260.
3) Add spin lock to clock provider context.
4) Add clock provider context for Exynos5410.
5) Uniform implementation for callbacks for PLL2550xx.
6) Split Exynos5260 clock file patch to bring it under 100 Kb limit.
7) Replace aclk/pclk/hclk gates with combined gates.
8) Remove CLK_IGNORE_UNUSED flag for gate clocks.

Rahul Sharma (2):
clk/exynos5260: add macros and documentation for exynos5260 clk/exynos5260: add clock file for exynos5260

  .../devicetree/bindings/clock/exynos5260-clock.txt |  190 ++
  drivers/clk/samsung/Makefile                       |    1 +
  drivers/clk/samsung/clk-exynos5260.c               | 1980 ++++++++++++++++++++
  drivers/clk/samsung/clk-exynos5260.h               |  459 +++++
  include/dt-bindings/clock/exynos5260-clk.h         |  469 +++++
  5 files changed, 3099 insertions(+)

create mode 100644 Documentation/devicetree/bindings/clock/exynos5260-clock.txt create mode 100644 drivers/clk/samsung/clk-exynos5260.c
create mode 100644 drivers/clk/samsung/clk-exynos5260.h
create mode 100644 include/dt-bindings/clock/exynos5260-clk.h