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Date: Thu, 15 Feb 2024 09:53:54 +0100
From: Jan Kiszka <jan.kiszka@...mens.com>
To: Aradhya Bhatia <a-bhatia1@...com>,
 Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
 Alexander Stein <alexander.stein@...tq-group.com>,
 Andrzej Hajda <andrzej.hajda@...el.com>,
 Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>,
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
 Sam Ravnborg <sam@...nborg.org>, dri-devel@...ts.freedesktop.org,
 marex@...x.de
Cc: linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/2] drm/bridge: tc358767: Fix
 DRM_BRIDGE_ATTACH_NO_CONNECTOR case

On 11.12.23 09:07, Aradhya Bhatia wrote:
> 
> 
> On 06/12/23 17:41, Tomi Valkeinen wrote:
>> Hi,
>>
>> On 08/11/2023 14:45, Alexander Stein wrote:
>>> Hi Tomi,
>>>
>>> Am Mittwoch, 8. November 2023, 12:27:21 CET schrieb Tomi Valkeinen:
>>>> These two patches are needed to make tc358767 work in the
>>>> DRM_BRIDGE_ATTACH_NO_CONNECTOR case, at least when using a DP connector.
>>>>
>>>> I have tested this with TI AM654 EVM with a tc358767 add-on card
>>>> connected to a DP monitor.
>>>
>>> Just a question regarding the usage of this DSI-DP bridge.
>>> What is the state of the DSI lanes after the DSI host has been
>>> initialized,
>>> but before calling atomic_pre_enable? AFAIK this bridge requires LP-11
>>> on DSI
>>> at any time for accessing the AUX channel.
> 
> + Marek
> 
> Marek, Alexander,
> 
> A quick grep tells me that you have added devicetree for tc358767 in DSI
> to (e)DP mode on other platforms. Could you please test these patches
> and report if you find any issue?

Is this the last blocker to move forward with these fixes? I'd really
like to see them finally merged.

Thanks,
Jan

-- 
Siemens AG, Technology
Linux Expert Center


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