ad7293_spi_read
return ad7293_spi_read(st, AD7293_REG_VIN0_OFFSET + ch, offset);
return ad7293_spi_read(st, AD7293_REG_TSENSE_INT_OFFSET + (ch - 4), offset);
return ad7293_spi_read(st, AD7293_REG_ISENSE0_OFFSET + (ch - 7), offset);
return ad7293_spi_read(st, AD7293_REG_UNI_VOUT0_OFFSET + (ch - 11), offset);
ret = ad7293_spi_read(st, AD7293_REG_ISENSE_GAIN, gain);
ret = ad7293_spi_read(st, reg, &temp);