linux-kernel - Re: [PATCH] drm/edid: Add Vive Pro 2 to non-desktop list

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Message-ID: <b5f6c63e-adf3-38a6-18fb-c92c764c23f3@collabora.com>
Date:   Tue, 14 Feb 2023 14:50:33 +0300
From:   Dmitry Osipenko <dmitry.osipenko@...labora.com>
To:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Yaroslav Bolyukin <iam@...h.pw>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Cc:     Thomas Zimmermann <tzimmermann@...e.de>
Subject: Re: [PATCH] drm/edid: Add Vive Pro 2 to non-desktop list

On 2/13/23 14:50, Jani Nikula wrote:
> On Mon, 13 Feb 2023, Dmitry Osipenko <dmitry.osipenko@...labora.com> wrote:
>> On 2/13/23 12:56, Jani Nikula wrote:
>>> On Sun, 12 Feb 2023, Dmitry Osipenko <dmitry.osipenko@...labora.com> wrote:
>>>> Hi,
>>>>
>>>> On 1/18/22 20:00, Yaroslav Bolyukin wrote:
>>>>
>>>> Add a brief commit message, describing a user-visible effect of this
>>>> patch. Tell that this change prevents exposing headset as a regular
>>>> display to the system, while it will work with SteamVR.
>>>>
>>>>> Signed-off-by: Yaroslav Bolyukin <iam@...h.pw>
>>>>> ---
>>>>>  drivers/gpu/drm/drm_edid.c | 3 ++-
>>>>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>>>>
>>>>> diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
>>>>> index 12893e7be..fdb8f0a6f 100644
>>>>> --- a/drivers/gpu/drm/drm_edid.c
>>>>> +++ b/drivers/gpu/drm/drm_edid.c
>>>>> @@ -200,9 +200,10 @@ static const struct edid_quirk {
>>>>>  	EDID_QUIRK('V', 'L', 'V', 0x91be, EDID_QUIRK_NON_DESKTOP),
>>>>>  	EDID_QUIRK('V', 'L', 'V', 0x91bf, EDID_QUIRK_NON_DESKTOP),
>>>>>  
>>>>> -	/* HTC Vive and Vive Pro VR Headsets */
>>>>> +	/* HTC Vive, Vive Pro and Vive Pro 2 VR Headsets */
>>>>
>>>> Nit: I'd keep the original comment, or change it to a generic "HTC VR
>>>> Headsets" to prevent further comment changes
>>>>
>>>>>  	EDID_QUIRK('H', 'V', 'R', 0xaa01, EDID_QUIRK_NON_DESKTOP),
>>>>>  	EDID_QUIRK('H', 'V', 'R', 0xaa02, EDID_QUIRK_NON_DESKTOP),
>>>>> +	EDID_QUIRK('H', 'V', 'R', 0xaa04, EDID_QUIRK_NON_DESKTOP),
>>>>>  
>>>>>  	/* Oculus Rift DK1, DK2, CV1 and Rift S VR Headsets */
>>>>>  	EDID_QUIRK('O', 'V', 'R', 0x0001, EDID_QUIRK_NON_DESKTOP),
>>>>>
>>>>> base-commit: 99613159ad749543621da8238acf1a122880144e
>>>>
>>>> Please send the v2 patch with the added EDID for Cosmos VR and the
>>>> addressed comments. Thanks!
>>>
>>> Yeah, we'll need to EDID to check that it doesn't have the Microsoft
>>> VSDB to indicate non-desktop. See 2869f599c0d8 ("drm/edid: support
>>> Microsoft extension for HMDs and specialized monitors").
>>
>> Do you mean to skip using the EDID_QUIRK_NON_DESKTOP if MS VSDB entry
>> presents in the EDID?
>>
>> These HTC EDIDs don't have MS VSDB, otherwise the quirk wouldn't be needed.
> 
> Okay, I didn't know that. I just observed that the original patch was
> sent before the the MS VSDB parsing was added.

This will be good to mention in the v2 commit message.

-- 
Best regards,
Dmitry