> I wanted to make the masking explicit, but since regmap-mdio currently requires > a register address width of 5 bit, it could move there. > > Actually, can we safely assume that any MDIO driver implementing clause-22 > access (5-bit register address width) will just ignore higher bits? In that > case, I could just drop these functions and not even modify regmap-mdio. It > appears to work for bitbanged MDIO. How are C45 addresses handled? The API to the MDIO bus driver uses a register value which is 32 bits in width. Bit 30 indicates the address is a C45 address, and then you have 21 bits of actual address. regmap-mdio needs to be generic and support both C22 and C45. Andrew
