Advanced Camera Support on Allwinner SoCs with Mainline Linux
summary
Mainline Linux gains working camera support for Allwinner V3/A31 silicon: drivers for OV5648 and A83T-like sensors land, the A31 MIPI CSI-2 bridge and DPHY get MIPI CSI-2 receive mode support, and the second‑generation ISP gains debayering and 2D noise reduction with meta queues for parameters and stats. Work splits CSI vs ISP paths, adds a device‑tree PHY direction property, and totals roughly 2–3k lines per sensor driver and 8–9k lines of ISP/CSI changes; one output channel works but stats/3A and full UAPI are unfinished.
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chapters (35)
- 0:00Intro
- 0:15About Paul
- 0:49Image Capture Chain
- 2:24Hardware Interfaces
- 4:26Processing
- 7:26Illustration
- 7:50Enhancements
- 8:50Advanced Enhancements
- 11:06Camera Parameters
- 15:02Summary
- 15:32Hardware Blocks
- 21:01Platform Support
- 22:03V4L2 Framework
- 24:35V402 Device
- 26:06FW Node Graph
- 27:08Device Tree
- 27:23Async Notifier
- 28:14Media Controller API
- 30:40IMX Capture Driver
- 33:27Advanced Camera Support
- 33:48Sensor Support
- 34:51ISP Support
- 35:01Sensors
- 37:05MyPi CSI2 Support
- 38:42MyPi CSI2 Bridge
- 40:23Device 3 Property
- 40:37Adding Support for the ISP
- 42:52Media Topology
- 43:17Synchronization Mechanism
- 44:25API Structure
- 45:22Patch Series
- 45:46Future Steps
- 47:21Leap Camera
- 48:16Hardware Availability
- 48:55Conclusion
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