MCP47FEB02_POWER_DOWN_REG_ADDR
ret = regmap_read(data->regmap, MCP47FEB02_POWER_DOWN_REG_ADDR, &pd_ch);
ret = regmap_read(data->regmap, MCP47FEB02_POWER_DOWN_REG_ADDR, &val);
ret = regmap_update_bits(data->regmap, MCP47FEB02_POWER_DOWN_REG_ADDR,
ret = regmap_update_bits(data->regmap, MCP47FEB02_POWER_DOWN_REG_ADDR,
ret = regmap_update_bits(data->regmap, MCP47FEB02_POWER_DOWN_REG_ADDR,