hisilicon-opensdk: wire hi3520dv200 (replace 4 vendor blobs with source-built)#2109
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Bump openhisilicon to 55b72ec — adds the hi3520dv200 source mirror plus the gpio_i2c include-path fix for nvp6134c. hi3520dv200_lite now builds open_mmz / open_hi_user / open_gpioi2c / open_nvp6134_ex from source and installs them into /lib/modules/3.0.8/hisilicon/ with vendor names, overriding the matching blobs in hisilicon-osdrv-hi3520dv200. The MPP video pipeline (hi3520D_base/sys/viu/vpss/vou/venc/...) stays as vendor blobs since vendor never released V2 MPP source. Smoke-tested on the lab DVR (10.216.128.33): firmware flashes via sysupgrade, lsmod shows the vendor MPP blobs binding to our source-built open_mmz (mmz allocator) and open_hi_user across all relevant slots, dvr_home demo runs cleanly against the source-built modules. Userspace libraries side is a no-op for now — opensdk's libraries/ tree has no hi3520dv200 SUBDIRS filter yet, so we short-circuit the BUILD_CMDS to skip it. Lifts when userspace mirror lands. Refs OpenIPC/openhisilicon#51 (umbrella tracker).
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Summary
Wire hi3520dv200 into hisilicon-opensdk for the first time. The matching source mirror landed upstream in openipc/openhisilicon#163 + #164.
Replaces 4 of the modules in /lib/modules/3.0.8/hisilicon/ — the ones load_hisilicon actually `insmod`s today — with versions built from vendor V2 source:
The MPP video pipeline (hi3520D_base/sys/viu/vpss/vou/venc/...) stays as pre-built blobs in hisilicon-osdrv-hi3520dv200 — vendor never released V2 MPP source. Other extdrv source (tw286x, cx26828, tlv*, ssp) is built but not installed yet (load_hisilicon doesn't insmod them, so leaving disk footprint untouched).
Userspace libraries (libraries/) is a no-op for hi3520dv200 for now — the opensdk libraries/Makefile has no SUBDIRS filter for this CHIPARCH yet, so we short-circuit the BUILD_CMDS to skip it. Lifts when a userspace mirror lands.
Test plan
Notes