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| author | weiyi.lu@mediatek.com <weiyi.lu@mediatek.com> | 2017-11-28 15:28:18 +0800 |
|---|---|---|
| committer | Matthias Brugger <matthias.bgg@gmail.com> | 2017-12-21 11:49:22 +0100 |
| commit | fa7e843a901d4ea6b092fea67406f85e8ec60b22 (patch) | |
| tree | 716939671bf7f30cad930048a903d33b8c222938 /include/linux/soc | |
| parent | 3dcf01c9707d49e8a38387f4dfe9f43dfb0e63eb (diff) | |
| download | linux-fa7e843a901d4ea6b092fea67406f85e8ec60b22.tar.bz2 | |
soc: mediatek: extend bus protection API
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>
Diffstat (limited to 'include/linux/soc')
| -rw-r--r-- | include/linux/soc/mediatek/infracfg.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/soc/mediatek/infracfg.h b/include/linux/soc/mediatek/infracfg.h index e8d9f0d52933..b0a507d356ef 100644 --- a/include/linux/soc/mediatek/infracfg.h +++ b/include/linux/soc/mediatek/infracfg.h @@ -28,7 +28,8 @@ #define MT7622_TOP_AXI_PROT_EN_WB (BIT(2) | BIT(6) | \ BIT(7) | BIT(8)) -int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask); -int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask); - +int mtk_infracfg_set_bus_protection(struct regmap *infracfg, u32 mask, + bool reg_update); +int mtk_infracfg_clear_bus_protection(struct regmap *infracfg, u32 mask, + bool reg_update); #endif /* __SOC_MEDIATEK_INFRACFG_H */ |