[PATCH v4 0/7] rk3399 support ddr frequency scaling

[Chanwoo Choi]

Hi Lin,

On 2016년 08월 01일 16:46, hl wrote:
> Hi Chanwoo Choi,
> 
>     Ah, i am base on https://chromium.googlesource.com/chromiumos/third_party/kernel/v4.4,
> and forget to rebase on https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git, i will fix it in next version.
> I am sorry about that. And can you help to review the devfreq patch first, if something need to update,
> i will do it together. Thanks.

Sure. I'm now reviewing the devfreq patches.

Regards,
Chanwoo Choi

> 
> On 2016年08月01日 15:39, Chanwoo Choi wrote:
>> Hi Lin,
>>
>> On 2016년 07월 29일 16:56, Lin Huang wrote:
>>> rk3399 platform have dfi controller can monitor ddr load,
>>> and dcf controller to handle ddr register so we can get the
>>> right ddr frequency and make ddr controller happy work(which
>>> will implement in bl31). So we do ddr frequency scaling with
>>> following flow:
>>>
>>>          kernel                                bl31
>>>
>>>     monitor ddr load
>>>         |
>>>         |
>>>     get_target_rate
>>>         |
>>>         |           pass rate to bl31
>>>     clk_set_rate(ddr) --------------------->run dcf flow
>>>         |                                   |
>>>         |                                   |
>>>     wait dcf interrupt<-------------------trigger dcf interrupt
>>>         |
>>>         |
>>>           return
>>>
>>> Lin Huang (6):
>>>    clk: rockchip: add new clock-type for the ddrclk
>>>    clk: rockchip: rk3399: add SCLK_DDRCLK ID for ddrc
>>>    clk: rockchip: rk3399: add ddrc clock support
>>>    PM / devfreq: event: support rockchip dfi controller
>>>    PM / devfreq: rockchip: add devfreq driver for rk3399 dmc
>>>    drm/rockchip: Add dmc notifier in vop driver
>>>
>>>
>>> Heiko Stübner (1):
>>>    clk: rockchip: add clock flag parameter when register pll
>>>
>>> Lin Huang (6):
>>>    clk: rockchip: add new clock-type for the ddrclk
>>>    clk: rockchip: rk3399: add SCLK_DDRCLK ID for ddrc
>>>    clk: rockchip: rk3399: add ddrc clock support
>>>    PM / devfreq: event: support rockchip dfi controller
>>>    PM / devfreq: rockchip: add devfreq driver for rk3399 dmc
>>>    drm/rockchip: Add dmc notifier in vop driver
>> The cover-letter includes the duplicate list of patches.
>>
>> Also, I want to test the build test. but, When I apply these patches,
>> merge conflict happen. Could you give the information about base git repository?
>>
>> Regards,
>> Chanwoo Choi
>>
>>
>>>   drivers/clk/rockchip/Makefile               |   1 +
>>>   drivers/clk/rockchip/clk-ddr.c              | 146 +++++++++
>>>   drivers/clk/rockchip/clk-pll.c              |   4 +-
>>>   drivers/clk/rockchip/clk-rk3399.c           |  19 ++
>>>   drivers/clk/rockchip/clk.c                  |  11 +-
>>>   drivers/clk/rockchip/clk.h                  |  29 +-
>>>   drivers/devfreq/Kconfig                     |   1 +
>>>   drivers/devfreq/Makefile                    |   1 +
>>>   drivers/devfreq/event/Kconfig               |   7 +
>>>   drivers/devfreq/event/Makefile              |   1 +
>>>   drivers/devfreq/event/rockchip-dfi.c        | 253 +++++++++++++++
>>>   drivers/devfreq/rockchip/Kconfig            |   8 +
>>>   drivers/devfreq/rockchip/Makefile           |   1 +
>>>   drivers/devfreq/rockchip/rk3399_dmc.c       | 473 ++++++++++++++++++++++++++++
>>>   drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 124 +++++++-
>>>   include/dt-bindings/clock/rk3399-cru.h      |   1 +
>>>   include/soc/rockchip/rockchip_sip.h         |  27 ++
>>>   17 files changed, 1098 insertions(+), 9 deletions(-)
>>>   create mode 100644 drivers/clk/rockchip/clk-ddr.c
>>>   create mode 100644 drivers/devfreq/event/rockchip-dfi.c
>>>   create mode 100644 drivers/devfreq/rockchip/Kconfig
>>>   create mode 100644 drivers/devfreq/rockchip/Makefile
>>>   create mode 100644 drivers/devfreq/rockchip/rk3399_dmc.c
>>>   create mode 100644 include/soc/rockchip/rockchip_sip.h
>>>
>>
>>
>>
>