linux-kernel - Re: [PATCH v2 0/6] Add support for MSM8996 GDSCs

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Date:	Mon, 18 Jan 2016 09:57:20 +0530
From:	Rajendra Nayak <rnayak@...eaurora.org>
To:	sboyd@...eaurora.org, mturquette@...libre.com
CC:	linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
	linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v2 0/6] Add support for MSM8996 GDSCs


On 12/01/2015 09:42 PM, Rajendra Nayak wrote:
> Changes since v1:
> * For votable gdscs which are 'on' at boot, put an explicit vote
> * Added a delay post disable for votable gdscs
> * Added back the status check after timeout
> * rearranged some patch ordering to avoid bisect issues

Stephen, Did you get a chance to look at this series?

> 
> This series adds support for GDSCs' which are part of gcc and mmcc
> in QCOM msm8996 SoC. Series applies on top of clk-next
> 
> There are many more cases of gdscs within gdscs (hierarchical power
> domains) in msm8996 (msm8974 has one such instance which is supported
> upstream) and hence the series adds support within gdsc driver to
> handle this.
> 
> Also msm8996 has gdscs with gds hw controllers within, for ensuring
> slave device idleness before gdscs are powered off, hence the series
> also adds support for gdscs with gds hw controllers.
> 
> ToDo: Series does not yet add support for gpu gdscs which are part
> of mmcc
> 
> Tested on apq8096 dragonboards to make sure all modelled gdscs can
> be turned on/off successfully
> 
> Rajendra Nayak (6):
>   clk: qcom: gdsc: Add support for hierarchical power domains
>   clk: qcom: gdsc: Add support for gdscs with gds hw controller
>   clk: qcom: gdsc: Add support for votable gdscs
>   clk: qcom: gdsc: Add GDSCs in msm8996 GCC
>   clk: qcom: gdsc: Add mmcc gdscs for msm8996 family
>   clk: qcom: mmcc8974: Use gdscs .parent and remove genpd calls
> 
>  arch/arm64/boot/dts/qcom/msm8996.dtsi         |   2 +
>  drivers/clk/qcom/common.c                     |  14 ++-
>  drivers/clk/qcom/gcc-msm8996.c                |  92 +++++++++++++++
>  drivers/clk/qcom/gdsc.c                       |  89 +++++++++++----
>  drivers/clk/qcom/gdsc.h                       |  34 ++++--
>  drivers/clk/qcom/mmcc-msm8974.c               |  14 +--
>  drivers/clk/qcom/mmcc-msm8996.c               | 157 ++++++++++++++++++++++++++
>  include/dt-bindings/clock/qcom,gcc-msm8996.h  |  11 ++
>  include/dt-bindings/clock/qcom,mmcc-msm8996.h |  17 +++
>  9 files changed, 382 insertions(+), 48 deletions(-)
> 

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