diff options
Diffstat (limited to 'drivers/phy/mediatek/phy-mtk-io.h')
| -rw-r--r-- | drivers/phy/mediatek/phy-mtk-io.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/phy/mediatek/phy-mtk-io.h b/drivers/phy/mediatek/phy-mtk-io.h index 500fcdab165d..58f06db822cb 100644 --- a/drivers/phy/mediatek/phy-mtk-io.h +++ b/drivers/phy/mediatek/phy-mtk-io.h @@ -8,6 +8,7 @@ #ifndef __PHY_MTK_H__ #define __PHY_MTK_H__ +#include <linux/bitfield.h> #include <linux/io.h> static inline void mtk_phy_clear_bits(void __iomem *reg, u32 bits) @@ -35,4 +36,11 @@ static inline void mtk_phy_update_bits(void __iomem *reg, u32 mask, u32 val) writel(tmp, reg); } +/* field @mask shall be constant and continuous */ +#define mtk_phy_update_field(reg, mask, val) \ +({ \ + BUILD_BUG_ON_MSG(!__builtin_constant_p(mask), "mask is not constant"); \ + mtk_phy_update_bits(reg, mask, FIELD_PREP(mask, val)); \ +}) + #endif |