[PATCH v7 00/11] Add generic set_rate clk_ops for PLL35xx and PLL36xx for samsung SoCs

Yadwinder Singh Brar yadi.brar01 at gmail.com
Thu Jun 20 06:07:32 EDT 2013


Hi Tomasz,

On Thu, Jun 20, 2013 at 3:30 PM, Tomasz Figa <t.figa at samsung.com> wrote:
> Hi Yadwinder, Vikas,
>
> On Tuesday 11 of June 2013 15:01:05 Yadwinder Singh Brar wrote:
>> This patch series does the following:
>>
>>  1) Unifies the clk strutures  and registration function used for PLL35xx
>> & PLL36xx, 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 v6:
>>       - Splited the patch adding samsung_clk_register_pll() into definition
>>       addition, SoC specific migration and cleanup patches.
>>       - Addressed some NIT comments.
>
> This version looks good to me. Thanks for your work on improving this
> series again!
>
> Reviewed-by: Tomasz Figa <t.figa at samsung.com>
>

Thanks for helping to improve this series.

Thanks,
Yadwinder

> Best regards,
> Tomasz
>
>> changes since v5:
>>       - Corrected to use rate table as specified in UM for exynos5250 epll.
>>       - Took care of exynos5420 as well, as new exynos5420 clk driver came in
>>       while rebasing on latest Kgene's for-next.
>>
>>       Since we spilted 1st patch into 2 different patches,
>>       can we expect "reviewed-by" again for the same?
>>
>> changes since v4:
>>       - Defined common samsung samsung_clk_register_pll() to register a list
>>       of PLL and used a struct samsung_pll_clock for passing intialisation
>>       data instead of passing as arguments. Now passing LOCK as well as CON0
>>       offset as intialisation data.
>>       - Calculated length of rate table while registering PLL instead of
>>       getting it as intialisation data.
>>
>> 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
>>
>> 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 (8):
>>   clk: samsung: Introduce a common samsung_clk_pll struct
>>   clk: samsung: Define a common samsung_clk_register_pll()
>>   clk: samsung: Migrate exynos5250 to use common
>>     samsung_clk_register_pll()
>>   clk: samsung: Migrate exynos4 to use common
>>     samsung_clk_register_pll()
>>   clk: samsung: Migrate exynos5420 to use common
>>     samsung_clk_register_pll()
>>   clk: samsung: Remove unused pll registeration code for pll35xx and
>>     pll36xx
>>   clk: samsung: Add support to register rate_table for samsung plls
>>   clk: samsung: Add set_rate() clk_ops for PLL35xx
>>
>>  drivers/clk/samsung/clk-exynos4.c    |   40 +++--
>>  drivers/clk/samsung/clk-exynos5250.c |  101 +++++++++--
>>  drivers/clk/samsung/clk-exynos5420.c |   86 ++++++---
>>  drivers/clk/samsung/clk-pll.c        |  339
>> ++++++++++++++++++++++++++-------- drivers/clk/samsung/clk-pll.h
>> |   38 ++++-
>>  drivers/clk/samsung/clk.h            |   53 ++++++
>>  6 files changed, 519 insertions(+), 138 deletions(-)
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