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 32F8C29BDBF; Mon, 20 Apr 2026 06:16:57 +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=1776665821; cv=none; b=KMyFcfYmhhGbs1Z/aFfz6/T1AsaTKvxGsn5AF2QwSfwKXXasLGOgVTvDOeDdxVctYb/dUcqTbsFnw3/mERJJyFi/Y85mdF7CiWg+B290e6LBFtc70JI0MM0/pRURO/510hT2v5IRW7OHdm/yaQKAr9nk7OirQUgaRXPK67MJyfE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776665821; c=relaxed/simple; bh=1nnUBVTtlI6Gc47mbBtzpDJPdRrp1+o3L5+TQKPWwW8=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=W/tSaxgKjubwfz6Ul9GejviiZjaG3ZOTJjZGFzrvLLbZUsugwm4WH0SEAy282gSVOwIDMVvn/jJFHPQroO2kyXt+XVf7fFVGP2UNliS2loe2+FKZB7SS049LsLZVhC2rD56JwPW2M/VdnltAsl4WLyEl0u60jiAj/Mdb80LCurA= 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=c27ynN/h; 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="c27ynN/h" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=lontium.com; s=default; t=1776665809; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=joljCzzpQ3BWVjBWEzq/YmymQ3S+YGNeTfY7syNIJMk=; b=c27ynN/h8YsJ49VWFz7YLlLb3UuC5ZI+RR3ieMLABaYrH8uFww79A28BhZCo2a4+lKUWjzmVg1B5TpW5XH4zyCE5VlFhAvszqEgUhYKcZHJL/rPUp5PLZ8N366rpD6ResxUdi9Y4NmxznE6j2zJdBHSeH/LUznRFDtz9QLBpyOMgid5wKWjlWLsg7aOSkPDSPUyagfK96oTr5ibAHJ96GUGLW6uoPaubimKCrI/ldCcdGoCtf+w84PoPzV0nBIZq6VV77c14uJZRRgr2v4wybVLImxIi/NQYZHSSMdAygznmzuswpZqiCZm3JjPr/UXFtZJqEMAmWEkcp3c9uCVMqQ== X-Alimail-AntiSpam:AC=CONTINUE;BC=0.08217578|-1;CH=green;DM=|CONTINUE|false|;DS=CONTINUE|ham_system_inform|0.00760056-0.000148186-0.992251;FP=3247150432297668347|0|0|0|0|-1|-1|-1;HT=maildocker-contentspam033032053168;MF=syyang@lontium.com;NM=1;PH=DS;RN=19;RT=19;SR=0;TI=SMTPD_---.hFz0LsH_1776665805; Received: from DESKTOP-V2MKAT2.localdomain(mailfrom:syyang@lontium.com fp:SMTPD_---.hFz0LsH_1776665805 cluster:ay29) by smtp.aliyun-inc.com; Mon, 20 Apr 2026 14:16:46 +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@ideasonboard.com, 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, Sunyun Yang Subject: [PATCH v3 0/2] Add LT9611C(EX/UXD) DRM bridge driver and device tree Date: Mon, 20 Apr 2026 14:16:42 +0800 Message-Id: <20260420061644.1251070-1-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 This series adds support for the Lontium LT9611C(EX/UXD) MIPI DSI to HDMI chip: -dt-bindings: bridge: This patch adds new content to the lontium,lt9611.yaml binding file. -drm/bridge: This patch add new DRM bridge driver for LT9611C(EX/UXD) chip. Signed-off-by: Sunyun Yang --- Changes in v3: -dt-binding: 1. lt9611c(ex/uxd) content merged into lontium,lt9611.yaml -drm/bridge: 1. Drop the licence text, only use SPDX header 2. Sort the headers 3. Use library functions for crc8 4. Drop i2c_read_byte and i2c_write_byte 5. Lowercase all hex values 6. Use paged writes as implemented for LT9611C(EX/UXD) 7. Drop dev_info, use dev_dbg 8. Modify lt9611c_get_edid_block, don't store EDID in the long-term structures 9. Use HDMI audio helpers. 10.Remove unnecessary flags,Implement proper cleanup path, unwinding resources one by one. 11.Replace devm_kzalloc with devm_drm_bridge_alloc. 12.Remove extra kthread. -Link to v1: https://lore.kernel.org/lkml/20250903123825.1721443-1-syyang@lontium.com/ Changes in v2: 1. Forget modify code, operation error, Please disregard this submit. Changes in v1: -dt-binding: 1. Submit the first version of the code. -drm/bridge: 1. Submit the first version of the code. --- Sunyun Yang (2): dt-bindings: bridge: This patch adds new content to the lontium,lt9611.yaml binding file drm/bridge: This patch add new DRM bridge driver for LT9611C chip .../display/bridge/lontium,lt9611.yaml | 8 +- drivers/gpu/drm/bridge/Kconfig | 18 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/lontium-lt9611c.c | 1365 +++++++++++++++++ 4 files changed, 1390 insertions(+), 2 deletions(-) create mode 100755 drivers/gpu/drm/bridge/lontium-lt9611c.c -- 2.34.1