From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out28-194.mail.aliyun.com (out28-194.mail.aliyun.com [115.124.28.194]) (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 979BF3A545A; Thu, 30 Apr 2026 09:51:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.28.194 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777542710; cv=none; b=LFgDMN01wCNpQ3mtb0vmplLw+5/FL3J+dDNcsAxooX4igE9q5sTr8wd+9R2U10HOJPuOvU3do9ocRTIjjCeypxl7Y12xb4EVSk0/rEYkpcN+oCIR0FkV9mFH9b7RyeAfYpPFSnjLcNKYxkc32EiEGosw5Ee1oOFYscE5u9LGbOA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777542710; c=relaxed/simple; bh=JrDiQmU36Dnvpxm3obMClOqvaiJ9dgoWkYrEpSYGC1c=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=i5DePVTyyb3fK9fvt4hNyfVykZ14++KHq7UKI/DL8fdEzNo+eMPrkDHP3ds0PO2rWi6WMHd/7CkSgvS3Y89qr/H1CHpluxZBc597NKnKGs8sAclYJ0Y2xA0ZTsaP2feN3JwqNP3TSCtStCEYTJ9kMoFycEevcSKSQ4h+2QYPogI= 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=m1P/sVVa; arc=none smtp.client-ip=115.124.28.194 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="m1P/sVVa" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=lontium.com; s=default; t=1777542699; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=LE+sPblj04tWoSeV8fpMr+HaJy7Zfzk68wAWVO5KMq0=; b=m1P/sVVatriuuIPdsDo7Fw1Ev8sTgpjx855Oco9bmWTg29BKkwVtWjDyBV4sgVMYFXvv64KYgTYdDFyWnuwCHbgjc+sQeO/3Js3u+XylVO2O+PzquPsSa6TRD5gwLOkMqqiFVGLuv3tMtcvUInAJy4m8+WwozwDdFrdm3EgSLqlipTxsuyh5HM/LCZZE/Z7BVRj7FHGV+MfdwcyK3a7SfMOE/g5tywO5q4gC/FQn1VX2XQCuwb/HqYi/hSxB9LHcgTOQ5xUEAT6+MVAEA6KrAQ9de5d+HagyPcgZyuHWzh/6COh3S9TCbNHxeNH6Yfzc7yJhygykvMo+EKJ+v8kmxQ== X-Alimail-AntiSpam:AC=CONTINUE;BC=0.08588946|-1;CH=green;DM=|CONTINUE|false|;DS=CONTINUE|ham_system_inform|0.00363759-8.50324e-05-0.996277;FP=7874775103993203832|0|0|0|0|-1|-1|-1;HT=maildocker-contentspam033037006180;MF=syyang@lontium.com;NM=1;PH=DS;RN=22;RT=22;SR=0;TI=SMTPD_---.hNVpxsM_1777542374; Received: from DESKTOP-V2MKAT2.localdomain(mailfrom:syyang@lontium.com fp:SMTPD_---.hNVpxsM_1777542374 cluster:ay29) by smtp.aliyun-inc.com; Thu, 30 Apr 2026 17:46:16 +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 v4 0/2] Add Lontium LT7911EXC eDP to MIPI DSI bridge Date: Thu, 30 Apr 2026 17:46:10 +0800 Message-Id: <20260430094612.3408174-1-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 v4: - dt-binding: 1. Fix the missing spaces on the "subject". [Krzysztof] 2. Fix the error descriptions for port@0 and port@1. - drm/bridge: - Link to v3: https://lore.kernel.org/lkml/20260429040541.3404116-1-syyang@lontium.com/ 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 Lontium LT7911EXC eDP to MIPI DSI bridge drm/bridge: Add Lontium 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