linux-kernel - Re: [PATCH v9 2/5] drm/msm/dp: add displayPort driver support

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Message-ID: <ab0a3659-b4c4-e7a9-f010-9ace4dae84a7@infradead.org>
Date:   Fri, 7 Aug 2020 09:21:31 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Guenter Roeck <groeck@...gle.com>
Cc:     Tanmay Shah <tanmay@...eaurora.org>,
        Stephen Boyd <swboyd@...omium.org>,
        linux-arm-msm@...r.kernel.org,
        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>, Rob Clark <robdclark@...il.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        freedreno@...ts.freedesktop.org, Sean Paul <seanpaul@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        David Airlie <airlied@...ux.ie>, aravindh@...eaurora.org,
        abhinavk@...eaurora.org, khsieh@...eaurora.org,
        Chandan Uddaraju <chandanu@...eaurora.org>,
        Vara Reddy <varar@...eaurora.org>,
        Guenter Roeck <groeck@...omium.org>
Subject: Re: [PATCH v9 2/5] drm/msm/dp: add displayPort driver support

On 8/7/20 9:09 AM, Guenter Roeck wrote:
> On Fri, Aug 7, 2020 at 8:37 AM Randy Dunlap <rdunlap@...radead.org> wrote:
>>
>> On 8/7/20 12:17 AM, Tanmay Shah wrote:
>>> diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
>>> index 6deaa7d01654..ea3c4d094d09 100644
>>> --- a/drivers/gpu/drm/msm/Kconfig
>>> +++ b/drivers/gpu/drm/msm/Kconfig
>>> @@ -57,6 +57,14 @@ config DRM_MSM_HDMI_HDCP
>>>       help
>>>         Choose this option to enable HDCP state machine
>>>
>>> +config DRM_MSM_DP
>>> +     bool "Enable DP support in MSM DRM driver"
>>
>>         bool "Enabled DisplayPort support in MSM DRM driver"
>>
> Why "Enabled" ? This would be quite unusual for a Kconfig entry.

Sorry, my typo.
Just "Enable", like it was earlier.

> Guenter
> 
>>> +     depends on DRM_MSM
>>> +     help
>>> +       Compile in support for DP driver in msm drm driver. DP external
>>
>>                                               MSM DRM
>>
>> Also:
>> I can't find anywhere in drivers/gpu/drm/msm/ that explains what MSM means.
>> What does it mean?
>>
>>> +       display support is enabled through this config option. It can
>>> +       be primary or secondary display on device.
>>> +
>>>  config DRM_MSM_DSI
>>>       bool "Enable DSI support in MSM DRM driver"
>>>       depends on DRM_MSM


-- 
~Randy