linux-kernel - Re: [PATCH v4 0/7] rk3399 support ddr frequency scaling

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Message-ID: <579EFE64.1000502@rock-chips.com>
Date:	Mon, 1 Aug 2016 15:46:44 +0800
From:	hl <hl@...k-chips.com>
To:	Chanwoo Choi <cw00.choi@...sung.com>, heiko@...ech.de
Cc:	tixy@...aro.org, dbasehore@...omium.org, airlied@...ux.ie,
	mturquette@...libre.com, typ@...k-chips.com, sboyd@...eaurora.org,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	dianders@...omium.org, linux-rockchip@...ts.infradead.org,
	kyungmin.park@...sung.com, myungjoo.ham@...sung.com,
	linux-arm-kernel@...ts.infradead.org, mark.yao@...k-chips.com
Subject: Re: [PATCH v4 0/7] rk3399 support ddr frequency scaling

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.

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
>>
>
>
>

-- 
Lin Huang