From: Boerge Struempfel <bstruempfel@data-modul.com>
To: Marek Vasut <marex@denx.de>,
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>, Simona Vetter <simona@ffwll.ch>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Boerge Struempfel <bstruempfel@data-modul.com>
Subject: [PATCH 0/2] drm/bridge: lt9211: Add drive-strength-microamp DT property
Date: Tue, 12 May 2026 18:46:07 +0200 [thread overview]
Message-ID: <20260512164609.3390700-1-bstruempfel@data-modul.com> (raw)
The LT9211 LVDS TX output driver current is currently hardcoded to
0x8 (~25 uA). Some board layouts require a different drive strength
to meet signal integrity requirements.
This series adds support for the standard 'drive-strength-microamp'
DT property, allowing board DTs to select one of sixteen discrete
current levels between 12 uA and 36 uA. The default preserves the
existing behaviour.
Boerge Struempfel (2):
dt-bindings: display/bridge: lt9211: Add drive-strength-microamp
property
drm/bridge: lt9211: Add drive-strength-microamp DT property
.../display/bridge/lontium,lt9211.yaml | 7 +++++
drivers/gpu/drm/bridge/lontium-lt9211.c | 28 ++++++++++++++++++-
2 files changed, 34 insertions(+), 1 deletion(-)
--
2.54.0
next reply other threads:[~2026-05-12 16:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 16:46 Boerge Struempfel [this message]
2026-05-12 16:46 ` [PATCH 1/2] dt-bindings: display/bridge: lt9211: Add drive-strength-microamp property Boerge Struempfel
2026-05-12 17:05 ` Conor Dooley
2026-05-13 23:26 ` sashiko-bot
2026-05-12 16:46 ` [PATCH 2/2] drm/bridge: lt9211: Add drive-strength-microamp DT property Boerge Struempfel
2026-05-12 18:29 ` Marek Vasut
2026-05-13 9:02 ` Börge Strümpfel
2026-05-13 11:33 ` Marek Vasut
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