[PATCH v3 0/2] Add LT9611C(EX/UXD) DRM bridge driver and device tree

syyang
2026-04-20T06:16:57Z

From: Sunyun Yang <syyang@lontium.com>

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<syyang@lontium.com>
---
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