Pushed: https://cgit.freedesktop.org/drm/drm-misc/commit/?id=3aa6031deefa9a2c056af21...
On Fri, 26 Mar 2021 at 13:20, Adrien Grassein adrien.grassein@gmail.com wrote:
Hi, this patch set adds the support of the Lontium lt8912 MIPI to HDMI bridge in the kernel.
It's only support the video part, not the audio part yet since I don't have the datasheet of this component. I get the current i2c configuration from Digi and Boundary drivers. Developed using the DB_DSIHD board from BoundaryDevices.
Update in v2
- Use standard data-lanes instead of a custom prop;
- Use hdmi-connector node.
Update in v3
- Fix indentation;
- Implement missing bridge functions;
- Add some comments.
Update in v4
- Fix bridge ops;
- Fix i2c error detection.
Update in v5
- Fix lt8912 name (lt8912b instead of lt8912);
- Implement HPD via a workaround. In fact I don't have the datasheet of this component yet so I can't say if the configuration of the
registers is correct or if I have an HW issue on my board. So, I choose to implement a fake version of HPD using a workqueue and polling the status regularly.
Update in v6
- Fix a warning found by "kernel test robot"
Update in v7
- Fix HPD logic (via an HW emulation);
- HPD from chip is still not working.
Update in v8
- Remove HPD logic (will be added later when HW bug qill be fixed).
Update in v9
- Fix errors found in scripts/checkpatch.pl --strict
Thanks,
Adrien Grassein (2): dt-bindings: display: bridge: Add documentation for LT8912B drm/bridge: Introduce LT8912B DSI to HDMI bridge
.../display/bridge/lontium,lt8912b.yaml | 102 +++ MAINTAINERS | 6 + drivers/gpu/drm/bridge/Kconfig | 14 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/lontium-lt8912b.c | 765 ++++++++++++++++++ 5 files changed, 888 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml create mode 100644 drivers/gpu/drm/bridge/lontium-lt8912b.c
-- 2.25.1