soc: mediatek: extend bus protection API

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MT2712 add "set/clear" bus control register to each control register set
instead of providing only one "enable" control register, we could avoid
the read-modify-write racing by declaring "bus_prot_reg_update" as "false"
in scp_soc_data or declaring as "true" to use the legacy update method.
By improving the mtk-infracfg bus protection implementation to
support set/clear bus protection control method by IC configuration.

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

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weiyi.lu@mediatek.com 2017-11-28 15:28:18 +08:00 • committed by Matthias Brugger

parent 3dcf01c970

commit fa7e843a90

3 changed files with 46 additions and 15 deletions

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include/linux/soc/mediatek/infracfg.h

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