misc/eeprom/idt_89hpesx.c

5  * IDT PCIe-switch NTB Linux driver
11  *           NOTE of the IDT 89HPESx SMBus-slave interface driver
13  * IDT PCIe-switches. IDT provides a simple SMBus interface to perform IO-
20  *    Additionally IDT 89HPESx SMBus interface has an ability to write/read
55 #define IDT_89HPESX_DESC	"IDT 89HPESx SMBus-slave interface driver"
69  * struct idt_89hpesx_dev - IDT 89HPESx device data structure
70  * @eesize:	Size of EEPROM in bytes (calculated from "idt,eecompatible")
111  * struct idt_smb_seq - sequence of data to be read/written from/to IDT 89HPESx
139  * @csraddr:	Internal IDT device CSR address
223  * IDT 89HPESx basic register
224  * @IDT_VIDDID_CSR:	PCIe VID and DID of IDT 89HPESx
231  * IDT 89HPESx can send NACK when new command is sent before previous one
591 		/* Check whether IDT successfully read data from EEPROM */  in idt_eeprom_read_byte()
631 		/* Lock IDT SMBus device */  in idt_eeprom_write()
665 		/* Unlock IDT SMBus device */  in idt_eeprom_write()
690 		/* Lock IDT SMBus device */  in idt_eeprom_read()
696 		/* Unlock IDT SMBus device */  in idt_eeprom_read()
730 	/* Lock IDT SMBus device */  in idt_csr_write()
764 	/* Check whether IDT successfully retrieved CSR data */  in idt_csr_write()
766 		dev_err(dev, "IDT failed to perform CSR r/w");  in idt_csr_write()
771 	/* Unlock IDT SMBus device */  in idt_csr_write()
795 	/* Lock IDT SMBus device */  in idt_csr_read()
818 	/* Check whether IDT successfully retrieved CSR data */  in idt_csr_read()
820 		dev_err(dev, "IDT failed to perform CSR r/w");  in idt_csr_read()
825 	/* Save data retrieved from IDT */  in idt_csr_read()
828 	/* Unlock IDT SMBus device */  in idt_csr_read()
962 	/* Parse new CSR value and send it to IDT, if colon has been found */  in idt_dbgfs_csr_write()
1083  * idt_get_fw_data() - get IDT i2c-device parameters from device tree
1137  * @client:	i2c client of IDT PCIe-switch device
1239 	/* Initialize IDT SMBus slave interface mutex */  in idt_set_smbus_ops()
1246  * idt_check_dev() - check whether it's really IDT 89HPESx device
1256 	/* Read VID and DID directly from IDT memory space */  in idt_check_dev()
1263 	/* Check whether it's IDT device */  in idt_check_dev()
1269 	dev_info(dev, "Found IDT 89HPES device VID:0x%04x, DID:0x%04x",  in idt_check_dev()
1362  * idt_probe() - IDT 89HPESx driver probe() callback method
1379 	/* Check whether it is truly IDT 89HPESx device */  in idt_probe()
1401  * idt_remove() - IDT 89HPESx driver remove() callback method
1431  * idt_ids - supported IDT 89HPESx devices
1491 	{ .compatible = "idt,89hpes8nt2", },
1492 	{ .compatible = "idt,89hpes12nt3", },
1494 	{ .compatible = "idt,89hpes24nt6ag2", },
1495 	{ .compatible = "idt,89hpes32nt8ag2", },
1496 	{ .compatible = "idt,89hpes32nt8bg2", },
1497 	{ .compatible = "idt,89hpes12nt12g2", },
1498 	{ .compatible = "idt,89hpes16nt16g2", },
1499 	{ .compatible = "idt,89hpes24nt24g2", },
1500 	{ .compatible = "idt,89hpes32nt24ag2", },
1501 	{ .compatible = "idt,89hpes32nt24bg2", },
1503 	{ .compatible = "idt,89hpes12n3", },
1504 	{ .compatible = "idt,89hpes12n3a", },
1505 	{ .compatible = "idt,89hpes24n3", },
1506 	{ .compatible = "idt,89hpes24n3a", },
1508 	{ .compatible = "idt,89hpes32h8", },
1509 	{ .compatible = "idt,89hpes32h8g2", },
1510 	{ .compatible = "idt,89hpes48h12", },
1511 	{ .compatible = "idt,89hpes48h12g2", },
1512 	{ .compatible = "idt,89hpes48h12ag2", },
1513 	{ .compatible = "idt,89hpes16h16", },
1514 	{ .compatible = "idt,89hpes22h16", },
1515 	{ .compatible = "idt,89hpes22h16g2", },
1516 	{ .compatible = "idt,89hpes34h16", },
1517 	{ .compatible = "idt,89hpes34h16g2", },
1518 	{ .compatible = "idt,89hpes64h16", },
1519 	{ .compatible = "idt,89hpes64h16g2", },
1520 	{ .compatible = "idt,89hpes64h16ag2", },
1522 	{ .compatible = "idt,89hpes12t3g2", },
1523 	{ .compatible = "idt,89hpes24t3g2", },
1525 	{ .compatible = "idt,89hpes16t4", },
1526 	{ .compatible = "idt,89hpes4t4g2", },
1527 	{ .compatible = "idt,89hpes10t4g2", },
1528 	{ .compatible = "idt,89hpes16t4g2", },
1529 	{ .compatible = "idt,89hpes16t4ag2", },
1530 	{ .compatible = "idt,89hpes5t5", },
1531 	{ .compatible = "idt,89hpes6t5", },
1532 	{ .compatible = "idt,89hpes8t5", },
1533 	{ .compatible = "idt,89hpes8t5a", },
1534 	{ .compatible = "idt,89hpes24t6", },
1535 	{ .compatible = "idt,89hpes6t6g2", },
1536 	{ .compatible = "idt,89hpes24t6g2", },
1537 	{ .compatible = "idt,89hpes16t7", },
1538 	{ .compatible = "idt,89hpes32t8", },
1539 	{ .compatible = "idt,89hpes32t8g2", },
1540 	{ .compatible = "idt,89hpes48t12", },
1541 	{ .compatible = "idt,89hpes48t12g2", },
1547  * idt_driver - IDT 89HPESx driver structure
1560  * idt_init() - IDT 89HPESx driver init() callback method
1582  * idt_exit() - IDT 89HPESx driver exit() callback method