CMD_RCGR
ret = regmap_update_bits(md->clkr.regmap, CMD_RCGR + md->reg_offset,
ret = regmap_read(md->clkr.regmap, CMD_RCGR + md->reg_offset,
regmap_read(md->clkr.regmap, CMD_RCGR + md->reg_offset, &val);