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- .. SPDX-License-Identifier: GPL-2.0
- The Rockchip Image Signal Processor Driver (rkisp1)
- ===================================================
- Versions and their differences
- ------------------------------
- The rkisp1 block underwent some changes between SoC implementations.
- The vendor designates them as:
- - V10: used at least in rk3288 and rk3399
- - V11: declared in the original vendor code, but not used
- - V12: used at least in rk3326 and px30
- - V13: used at least in rk1808
- - V20: used in rk3568 and beyond
- Right now the kernel supports rkisp1 implementations based
- on V10 and V12 variants. V11 does not seem to be actually used
- and V13 will need some more additions but isn't researched yet,
- especially as it seems to be limited to the rk1808 which hasn't
- reached much market spread.
- V20 on the other hand will probably be used in future SoCs and
- has seen really big changes in the vendor kernel, so will need
- quite a bit of research.
- Changes from V10 to V12
- -----------------------
- - V12 supports a new CSI-host implementation but can still
- also use the same implementation from V10
- - The module for lens shading correction got changed
- from 12bit to 13bit width
- - The AWB and AEC modules got replaced to support finer
- grained data collection
- Changes from V12 to V13
- -----------------------
- The list for V13 is incomplete and needs further investigation.
- - V13 does not support the old CSI-host implementation anymore
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