From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out28-121.mail.aliyun.com (out28-121.mail.aliyun.com [115.124.28.121]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3282D2DBF75; Wed, 29 Apr 2026 04:05:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.28.121 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777435551; cv=none; b=p2zG3S77y29ASKA7EgPODLLxe+hrLSnuDV8qinVonl+lWk1p/x8V8szXTyr2D8Txd7l7y7WWV0jqWtou2Y21V0M5+l/7yidiTFtDm6cqyWCoi72OimqlMqU7bnfBsKjaGcuPnas+jJwwv2ciXX55NYqzBa5udNWUyYjp0g8CYCE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777435551; c=relaxed/simple; bh=eR2HkqitLzbj3bawJz3mcluYgcplnqm8jqGmFmOXDjA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=gUGRrBpEEC3vAQHIH5KQ1hbPsAxyXKUpkQ2g9CLi7aAhg0LJ5+UEuu31FLOi8mpJgvZNO62T95xgBlhF+K8BOFiQU5K3bebvoWuK4O5IUe9PEnOCGm9zCogmSD/SJ/sDc9WFm1ersfRLIMYBuH4qPQop3TQlgR++rTAOCla8Akc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lontium.com; spf=pass smtp.mailfrom=lontium.com; dkim=pass (2048-bit key) header.d=lontium.com header.i=@lontium.com header.b=MTSmyc0D; arc=none smtp.client-ip=115.124.28.121 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=lontium.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lontium.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=lontium.com header.i=@lontium.com header.b="MTSmyc0D" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=lontium.com; s=default; t=1777435547; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=7fr5E3bjCZzHmKuL1ycnrSJ8K1eCQ6VS79v9YrqXIZM=; b=MTSmyc0DiUz7v8r2AJVe2DIf3+zd4Q5bDBas+eKHJAWRUJrj1qpcaoDh1OOkZ6XKfJlRnj0m/GofP1LVjDc/nt9X1etCe+IHSAKITGgigCIPsAwOEPqTERKxBYARhNhPpc1wd6JvPtaC/bU5H7OdNmUMq+ke0NW+TYuZbWRLMaAbJSHdixIKAI82Dtok1aNEo3h1497J7JGt/9I61fOq3D+H8/942B43hoOhco2+JsyKnV0tZB8bUrESZNOLKCWvHPTt7jYjoZmX+RSFjvyVElx3OEjazeFaHrQiHtWJ4+LgChhwzxcmePqaWRyJSrfoDyUvONLGtrM8iw3sjLJzXA== X-Alimail-AntiSpam:AC=CONTINUE;BC=0.1599562|-1;CH=green;DM=|CONTINUE|false|;DS=CONTINUE|ham_system_inform|0.00436973-9.95173e-05-0.995531;FP=7874808089073602041|0|0|0|0|-1|-1|-1;HT=maildocker-contentspam033032023038;MF=syyang@lontium.com;NM=1;PH=DS;RN=22;RT=22;SR=0;TI=SMTPD_---.hMViCi-_1777435545; Received: from DESKTOP-V2MKAT2.localdomain(mailfrom:syyang@lontium.com fp:SMTPD_---.hMViCi-_1777435545 cluster:ay29) by smtp.aliyun-inc.com; Wed, 29 Apr 2026 12:05:46 +0800 From: syyang@lontium.com To: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andrzej.hajda@intel.com, neil.armstrong@linaro.org, dmitry.baryshkov@oss.qualcomm.com, maarten.lankhorst@linux.intel.com, rfoss@kernel.org, mripard@kernel.org Cc: Laurent.pinchart@ideasonboard.com, tzimmermann@suse.de, jonas@kwiboo.se, jernej.skrabec@gmail.com, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, yangsunyun1993@gmail.com, xmzhu@lontium.corp-partner.google.com, xmzhu@lontium.com, rlyu@lontium.com, xbpeng@lontium.com, Sunyun Yang Subject: [PATCH v3 0/2] Add Lontiun LT7911EXC eDP to MIPI DSI bridge Date: Wed, 29 Apr 2026 12:05:39 +0800 Message-Id: <20260429040541.3404116-1-syyang@lontium.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Sunyun Yang The LT7911EXC is an I2C-controlled bridge that Receiver eDP1.4 and output signal/dual port mipi. This series introduces: - A device tree binding YAML file describing the hardware - A new DRM bridge driver implementing the basic functionality Signed-off-by: Sunyun Yang --- Change in v3: - dt-binding: - drm/bridge: 1. already submit lt7911exc_fw.bin to linux-firmware. [Dmitry] 2. remove lt7911exc_remove function. 3. drop the "lontium, " in lt7911exc_i2c_table. - Link to v2: https://lore.kernel.org/lkml/20260428063224.3316655-1-syyang@lontium.com/ Change in v2: - dt-binding: 1. reset pins use active low. [Dmitry] - drm/bridge: 1. use atomic_* callbacks. [Quentin] 2. fix the incorrect formatting and spaces. 3. add the required header files. [Dmitry] 4. remove "enabled" flag. 5. remove *fw from the lt7911exc struct. 6. .max_register and .range_max use actual range. 7. regulator use bulk interface. 8. use dev_err_probe, devm_mutex_init and devm_drm_bridge_add. 9. Replace GPL v2 with GPL. - Link to v1: https://lore.kernel.org/lkml/20260420023354.1192642-1-syyang@lontium.com/ --- Sunyun Yang (2): dt-bindings:bridge: Add Lontiun LT7911EXC eDP to MIPI DSI bridge drm:bridge: Add Lontiun LT7911EXC eDP to MIPI DSI bridge .../display/bridge/lontium,lt7911exc.yaml | 89 ++++ drivers/gpu/drm/bridge/Kconfig | 13 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/lontium-lt7911exc.c | 493 ++++++++++++++++++ 4 files changed, 596 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/lontium,lt7911exc.yaml create mode 100644 drivers/gpu/drm/bridge/lontium-lt7911exc.c -- 2.34.1