[PATCH v4 0/6] Add generic set_rate clk_ops for PLL35xx and PLL36xx for samsung SoCs

Yadwinder Singh Brar yadi.brar at samsung.com
Mon Jun 3 11:09:50 EDT 2013


This patch series does the following:

 1) Unifies the clk strutures used for PLL35xx & PLL36xx and usues clk->base
    instead of clk->con0, to factor out possible common code.

 2) Defines a common rate_table which will contain recommended p, m, s and k
    values for supported rates that needs to be changed for changing
    corresponding PLL's rate

 3) Adds set_rate() and round_rate() clk_ops for PLL35xx and PLL36xx

changes since v3:
	- Used __clk_lookup() instead of adding alias for mout_vpllsrc
	- Added check for changing only M value in samsung_pll36xx_set_rate()
	- Modified samsung_pll35xx_mp_change() & samsung_pll35xx_set_rate()
	to improve readabilty.
	- Made the input rate_table as __init_data which is to be provided while
	registering PLL and made a copy of that table while registering, so
	that if multiple tables are their, they can be freed after getting the
	P, M, S, K setting values from required one.

changes since v2:
	- Added new patch to reorder the MUX registration for mout_vpllsrc MUX
	before the PLL registrations. And to add the alias for the mout_vpllsrc MUX.
        - Added a check to confirm parent rate while registrating the PLL
	rate tables.

changes since v1:
	- removed sorting and bsearch
	- modified the definition of struct "samsung_pll_rate_table"
	- added generic round_rate()
	- rectified the ops assignment for "rate table passed as NULL"
	  during PLL registration

Is rebased on branch kgene's "for-next"
https://git.kernel.org/cgit/linux/kernel/git/kgene/linux-samsung.git/log/?h=for-next

Vikas Sajjan (3):
  clk: samsung: Add set_rate() clk_ops for PLL36xx
  clk: samsung: Reorder MUX registration for mout_vpllsrc
  clk: samsung: Add EPLL and VPLL freq table for exynos5250 SoC

Yadwinder Singh Brar (3):
  clk: samsung: Use clk->base instead of directly using clk->con0 for
    PLL3xxx
  clk: samsung: Add support to register rate_table for PLL3xxx
  clk: samsung: Add set_rate() clk_ops for PLL35xx

 drivers/clk/samsung/clk-exynos4.c    |   10 +-
 drivers/clk/samsung/clk-exynos5250.c |   73 +++++++++--
 drivers/clk/samsung/clk-pll.c        |  255 ++++++++++++++++++++++++++++++----
 drivers/clk/samsung/clk-pll.h        |   35 +++++-
 drivers/clk/samsung/clk.h            |    2 +
 5 files changed, 332 insertions(+), 43 deletions(-)




More information about the linux-arm-kernel mailing list