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From: Alexander Stein <alexander.stein@ew.tq-group.com>
To: Aradhya Bhatia <a-bhatia1@ti.com>, Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>, Andrzej Hajda <andrzej.hajda@intel.com>, Neil Armstrong <neil.armstrong@linaro.org>, Robert Foss <rfoss@kernel.org>, Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, Jonas Karlman <jonas@kwiboo.se>, Jernej Skrabec <jernej.skrabec@gmail.com>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, Sam Ravnborg <sam@ravnborg.org>, dri-devel@lists.freedesktop.org, marex@denx.de, Jan Kiszka <jan.kiszka@siemens.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 0/2] drm/bridge: tc358767: Fix DRM_BRIDGE_ATTACH_NO_CONNECTOR case
Date: Thu, 15 Feb 2024 10:03:41 +0100
Message-ID: <3277848.aeNJFYEL58@steina-w>
Organization: TQ-Systems GmbH
In-Reply-To: <2f3bb86b-6f8c-4807-985e-344a0c47864c@siemens.com>
References: <20231108-tc358767-v2-0-25c5f70a2159@ideasonboard.com> <f6af46e0-aadb-450a-9349-eec1337ea870@ti.com> <2f3bb86b-6f8c-4807-985e-344a0c47864c@siemens.com>
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Hi everyone,

Am Donnerstag, 15. Februar 2024, 09:53:54 CET schrieb Jan Kiszka:
> On 11.12.23 09:07, Aradhya Bhatia wrote:
> > On 06/12/23 17:41, Tomi Valkeinen wrote:
> >> Hi,
> >>=20
> >> On 08/11/2023 14:45, Alexander Stein wrote:
> >>> Hi Tomi,
> >>>=20
> >>> 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.
> >>>>=20
> >>>> I have tested this with TI AM654 EVM with a tc358767 add-on card
> >>>> connected to a DP monitor.
> >>>=20
> >>> 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.
> >=20
> > + Marek
> >=20
> > Marek, Alexander,
> >=20
> > 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?

Sorry, I can't provide any feedback here. I've yet to setup the DSI-DP=20
correctly.

Best regards,
Alexander

> Is this the last blocker to move forward with these fixes? I'd really
> like to see them finally merged.
>=20
> Thanks,
> Jan


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