The series adds a driver that creates a drm_bridge and a drm_connector for the
LVDS to DP++ display bridge of the GE B850v3. There are two physical bridges on
the video signal pipeline: a STDP4028(LVDS to DP) and a STDP2690(DP to DP++).
However the physical bridges are automatically configured by the input video
signal, and the driver has no access to the video processing pipeline. The
driver is only needed to read EDID from the STDP2690 and to handle HPD events
from the STDP4028. The driver communicates with both bridges over i2c. The
video signal pipeline is as follows:
Host -> LVDS|--(STDP4028)--|DP -> DP|--(STDP2690)--|DP++ -> Video output
The patches from the series:
[1/5] Change the imx-ldb driver to allow attaching a bridge and not only a LVDS
panel.
[2/5] Configure the mapping between IPUs and external displays on the dts file
of the B850v3. Needed so the GPU can drive two Full-HD monitors.
[3/5] Devicetree documentation for the GE B850v3 LVDS/DP++ Bridge
[4/5] Add the driver, make changes to MAINTAINERS, Kconfig and Makefile
[5/5] Make the changes to the B850v3 dts file to enalbe the GE B850v3
LVDS/DP++ Bridge.
Peter Senna Tschudin (5):
drm/imx-ldb: Add support to drm-bridge
dts/imx6q-b850v3: Configure IPU assignment order
Documentation/devicetree/bindings: b850v3_lvds_dp
drm/bridge: Add driver for GE B850v3 LVDS/DP++ Bridge
dts/imx6q-b850v3: Use GE B850v3 LVDS/DP++ Bridge
.../devicetree/bindings/ge/b850v3_lvds_dp.txt | 38 ++
MAINTAINERS | 8 +
arch/arm/boot/dts/imx6q-b850v3.dts | 36 ++
drivers/gpu/drm/bridge/Kconfig | 8 +
drivers/gpu/drm/bridge/Makefile | 1 +
drivers/gpu/drm/bridge/ge_b850v3_lvds_dp.c | 397 +++++++++++++++++++++
drivers/gpu/drm/imx/imx-ldb.c | 75 ++--
7 files changed, 542 insertions(+), 21 deletions(-)
create mode 100644 Documentation/devicetree/bindings/ge/b850v3_lvds_dp.txt
create mode 100644 drivers/gpu/drm/bridge/ge_b850v3_lvds_dp.c
--
2.5.5
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