From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out28-3.mail.aliyun.com (out28-3.mail.aliyun.com [115.124.28.3]) (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 2AE1B175A72; Tue, 28 Apr 2026 06:32:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.28.3 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777357962; cv=none; b=swFdTUkhaZWUVdcrUfhiMcSlFF5Nz9eomIf9W1oHHzJopzvGWS9zfJyZVIaymxG/WgWO/Vxxsnk5Y3WDcYrSVmgJ2nXvAib2KsxlalOggTXZwGm3xpmR7olZ9bMjm1i/HmYU6VUCa4LY/Lt5+WJa3SIVSyQA8mFAl7HY/oNk0NU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777357962; c=relaxed/simple; bh=d7UsIGAL2elOYBblg57Vtj7xITQYJbYSPm41n8mWcxU=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=mdIMuHIBab/9ov0mpSISJNZCJAOtw/ZsLaloZFOpGfYExrrxBGimlI3gTFZ9wLt9iHaxIut4VjCmAYZ8qLpKINxKa3bbWpShZLBKENu4IEJUf0cJmEmW6Mn5Rh3rZUGqGPw+1vQXLFHywrCul4HyOfEFs7rHtnyU18Ta21DdvGs= 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=XHUcy/Z7; arc=none smtp.client-ip=115.124.28.3 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="XHUcy/Z7" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=lontium.com; s=default; t=1777357951; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=1lDrImTp9mJIo503AuFEkRnxI/JUO0PNkk1WhsvyCxg=; b=XHUcy/Z7p8mHKinvb8JYa2Czkv/ZrJB7iLM8EB7n+SBF24CSpgCJogJ9/12CcfK8enE4iGiWlXgCFoJD9MGvMLGuND5KXfv8B40pt82FYw1RnFqyRLYBeUpQaKdaRuQHkmkEaAfULwPClxG5y2/eAx/7Bop/hZyrvSLmRHwJtXo+UgIiGYbLv8/MS7GFPUb5WD+lJOKANRBjNbQV4OtPGnXN03cPx5R6rwWccrYwyHj+mZ+RjIy3pYKVw1qpXudvKftcVh3cyrdg2tM0nZTixA07tlkoMSTabxeQJDj8BpRrmRzqhGSOKP3dJE5xCxCO3TzCx5ViKdj8ppai/EUeig== X-Alimail-AntiSpam:AC=CONTINUE;BC=0.240612|-1;CH=green;DM=|CONTINUE|false|;DS=CONTINUE|ham_system_inform|0.00668875-0.00019251-0.993119;FP=7856652936164330937|0|0|0|0|-1|-1|-1;HT=maildocker-contentspam011083013073;MF=syyang@lontium.com;NM=1;PH=DS;RN=22;RT=22;SR=0;TI=SMTPD_---.hLqybuf_1777357948; Received: from DESKTOP-V2MKAT2.localdomain(mailfrom:syyang@lontium.com fp:SMTPD_---.hLqybuf_1777357948 cluster:ay29) by smtp.aliyun-inc.com; Tue, 28 Apr 2026 14:32:29 +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 v1 0/2] Add Lontiun LT7911EXC eDP to MIPI DSI bridge Date: Tue, 28 Apr 2026 14:32:22 +0800 Message-Id: <20260428063224.3316655-1-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 v1: - 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 with GPL v2. --- 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 | 497 ++++++++++++++++++ 4 files changed, 600 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