qcaspi_read_register
ret = qcaspi_read_register(qca, reg, &confirmed);
int qcaspi_read_register(struct qcaspi *qca, u16 reg, u16 *result);
qcaspi_read_register(qca, qcaspi_spi_regs[i], &value);
qcaspi_read_register(qca, SPI_REG_WRBUF_SPC_AVA, &available);
qcaspi_read_register(qca, SPI_REG_RDBUF_BYTE_AVA, &available);
qcaspi_read_register(qca, SPI_REG_SIGNATURE, &signature);
qcaspi_read_register(qca, SPI_REG_SIGNATURE, &signature);
qcaspi_read_register(qca, SPI_REG_WRBUF_SPC_AVA,
qcaspi_read_register(qca, SPI_REG_SIGNATURE, &signature);
qcaspi_read_register(qca, SPI_REG_SIGNATURE, &signature);
qcaspi_read_register(qca, SPI_REG_SIGNATURE, &signature);
qcaspi_read_register(qca, SPI_REG_SPI_CONFIG, &spi_config);
qcaspi_read_register(qca, SPI_REG_INTR_CAUSE, intr_cause);
qcaspi_read_register(qca, SPI_REG_SIGNATURE, &signature);
qcaspi_read_register(qca, SPI_REG_SIGNATURE, &signature);