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Date:   Fri, 12 Jun 2020 16:26:45 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Tanmay Shah <tanmay@...eaurora.org>, robh+dt@...nel.org,
        sam@...nborg.org
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, seanpaul@...omium.org,
        robdclark@...il.com, aravindh@...eaurora.org,
        abhinavk@...eaurora.org, Tanmay Shah <tanmay@...eaurora.org>
Subject: Re: [PATCH v6 0/5] Add support for DisplayPort driver on

Quoting Tanmay Shah (2020-06-11 18:50:25)
> These patches add support for Display-Port driver on SnapDragon
> hardware. It adds
> DP driver and DP PLL driver files along with the needed device-tree
> bindings.
> 
> The block diagram of DP driver is shown below:
> 
> 
>                  +-------------+
>                  |DRM FRAMEWORK|
>                  +------+------+
>                         |
>                    +----v----+
>                    | DP DRM  |
>                    +----+----+
>                         |
>                    +----v----+
>      +------------+|   DP    +----------++------+
>      +        +---+| DISPLAY |+---+      |      |
>      |        +    +-+-----+-+    |      |      |
>      |        |      |     |      |      |      |
>      |        |      |     |      |      |      |
>      |        |      |     |      |      |      |
>      v        v      v     v      v      v      v
>  +------+ +------+ +---+ +----+ +----+ +---+ +-----+
>  |  DP  | |  DP  | |DP | | DP | | DP | |DP | | DP  |
>  |PARSER| | HPD  | |AUX| |LINK| |CTRL| |PHY| |POWER|
>  +--+---+ +---+--+ +---+ +----+ +--+-+ +-+-+ +-----+
>     |                              |     |
>  +--v---+                         +v-----v+
>  |DEVICE|                         |  DP   |
>  | TREE |                         |CATALOG|
>  +------+                         +---+---+
>                                       |
>                                   +---v----+
>                                   |CTRL/PHY|
>                                   |   HW   |
>                                   +--------+
> 

I've never seen a block diagram for a driver before...

> 
> These patches have dependency on clock driver changes mentioned below:
> https://patchwork.kernel.org/patch/11245895/
> https://patchwork.kernel.org/cover/11069083/

These are merged right? Don't need to include this if it's already
merged.

Can you include a changelog in the cover letter too so we know what has
changed between versions of the patchset?

> 
> Chandan Uddaraju (4):
>   dt-bindings: msm/dp: add bindings of DP/DP-PLL driver for Snapdragon
>   drm: add constant N value in helper file
>   drm/msm/dp: add displayPort driver support
>   drm/msm/dp: add support for DP PLL driver
> 
> Jeykumar Sankaran (1):
>   drm/msm/dpu: add display port support in DPU
> 
[...]
> 
> 
> base-commit: 48f99181fc118d82dc8bf6c7221ad1c654cb8bc2

What is this commit? I don't see it in linux-next.

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