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Date:   Mon, 15 Jun 2020 15:51:45 -0700
From:   tanmay@...eaurora.org
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     robh+dt@...nel.org, sam@...nborg.org, 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
Subject: Re: [PATCH v6 0/5] Add support for DisplayPort driver on

On 2020-06-12 16:26, Stephen Boyd wrote:

Thanks for reviews Stephen.

> 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...
> 
It is here for v5. https://patchwork.freedesktop.org/series/74312/

>> 
>> 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.
> 
Ok Thanks.

> Can you include a changelog in the cover letter too so we know what has
> changed between versions of the patchset?
> 
Sure.
>> 
>> 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.
Here: 
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20200603&id=48f99181fc118d82dc8bf6c7221ad1c654cb8bc2

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