linux-kernel - Re: [PATCH v3 12/17] drm/bridge: cdns-dsi: Adjust mode to negative syncs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <d2816b7c-f637-4603-b2cb-d33721325fbd@linux.dev>
Date: Tue, 15 Apr 2025 18:53:45 +0530
From: Aradhya Bhatia <aradhya.bhatia@...ux.dev>
To: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
 Jyri Sarha <jyri.sarha@....fi>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I <kishon@...nel.org>,
 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>,
 Jayesh Choudhary <j-choudhary@...com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
 linux-phy@...ts.infradead.org, Francesco Dolcini <francesco@...cini.it>,
 Devarsh Thakkar <devarsht@...com>
Subject: Re: [PATCH v3 12/17] drm/bridge: cdns-dsi: Adjust mode to negative
 syncs



On 14/04/25 16:41, Tomi Valkeinen wrote:
> The Cadence DSI requires negative syncs from the incoming video signal,
> but at the moment that requirement is not expressed in any way. If the
> crtc decides to use positive syncs, things break down.
> 
> Use the adjusted_mode in atomic_check to set the sync flags to negative
> ones.
> 
> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
> ---
>  drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 

Reviewed-by: Aradhya Bhatia <aradhya.bhatia@...ux.dev>

-- 
Regards
Aradhya