This series adds support for the ITE IT6625/IT6626 HDMI to MIPI CSI-2
bridge chips. IT6625 accepts an HDMI 2.0 input and IT6626 an HDMI 2.1
input, converting it to a D-PHY (or C/D-PHY on IT6626) MIPI CSI-2
output. The bridge is configured over I2C, exposes an HDMI CEC
adapter, and supports EDID read/write, DV timings detection and
configuration, and HPD control via the standard V4L2 subdevice pad
and video ops.
Patch 1 documents the devicetree binding for the bridge, including
its three graph ports (two selectable CSI-2 outputs and one HDMI
input).
Patch 2 adds the V4L2 subdevice driver itself.
Signed-off-by: Hermes Wu <Hermes.wu@ite.com.tw>
---
Changes in v2:
- Patch 2 (driver): fix several correctness issues found by automated
review of v1 -- premature V4L2 async subdev registration/teardown
ordering, a missing-lock race on banked register reads, a
status-poll interval bug, a dropped CEC interrupt, an unacked CEC
transmit, set_fmt mutating active state on TRY, EDID blocks=0
handling, and a couple of uninitialized-stack hardening fixes. See
the patch's own changelog for the full list.
- Patch 1 (dt-bindings): restrict port@0/port@1 bus-type to D-PHY (4)
only for "ite,it6625", since that chip doesn't support C-PHY (also
found by the automated review of v1).
- Link to v1: https://lore.kernel.org/r/20260720-upstream-it6625-it6626-v1-0-475912f74459@ite.com.tw
---
Hermes Wu (2):
dt-bindings: media: add ITE IT6625/IT6626 HDMI bridge binding
media: i2c: add driver for ITE IT6625/IT6626
.../devicetree/bindings/media/i2c/ite,it6625.yaml | 159 ++
MAINTAINERS | 7 +
drivers/media/i2c/Kconfig | 18 +
drivers/media/i2c/Makefile | 1 +
drivers/media/i2c/it6625.c | 2104 ++++++++++++++++++++
5 files changed, 2289 insertions(+)
---
base-commit: 8dac27bfa2f994ecb11f01a63641527d17d48fc1
change-id: 20260716-upstream-it6625-it6626-6874ab8a5305
Best regards,
--
Hermes Wu <Hermes.wu@ite.com.tw>