[PATCH v3 0/2] Add Lontiun LT7911EXC eDP to MIPI DSI bridge

syyang
2026-04-29T04:05:48Z

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<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 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

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2.34.1