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

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Message-id: <579EFCBE.4080600@samsung.com>
Date:	Mon, 01 Aug 2016 16:39:42 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	Lin Huang <hl@...k-chips.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 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
>