spi_nor_read_sfdp
ret = spi_nor_read_sfdp(nor, addr, len, dwords);
ret = spi_nor_read_sfdp(nor, addr, len, dwords);
ret = spi_nor_read_sfdp(nor, addr, len, dwords);
ret = spi_nor_read_sfdp(nor, addr, len, dwords);
err = spi_nor_read_sfdp(nor, sizeof(header),
err = spi_nor_read_sfdp(nor, 0, sfdp_size, sfdp->dwords);
ret = spi_nor_read_sfdp(nor, addr, len, dma_safe_buf);
ret = spi_nor_read_sfdp(nor, addr, len, smpt);