18    SMBus interfaces.
32 #include <linux/i2c-smbus.h>
169 				"SMBus base address memory region 0x%x already in use.\n",  in piix4_sb800_region_request()
179 			dev_err(dev, "SMBus base address mapping failed.\n");  in piix4_sb800_region_request()
191 			"SMBus base address index region 0x%x already in use.\n",  in piix4_sb800_region_request()
217 	 * w/ SMBus PCI revision ID 0x51 or greater. MMIO is supported on  in piix4_sb800_use_mmio()
235 	/* On some motherboards, it was reported that accessing the SMBus  in piix4_setup()
239 			"Accessing the SMBus on this system is unsafe!\n");  in piix4_setup()
243 	/* Don't access SMBus on IBM systems which get corrupted eeproms */  in piix4_setup()
252 	/* Determine the address of the SMBus areas */  in piix4_setup()
260 			dev_err(&PIIX4_dev->dev, "SMBus base address "  in piix4_setup()
271 		dev_err(&PIIX4_dev->dev, "SMBus region 0x%x already in use!\n",  in piix4_setup()
284 		dev_info(&PIIX4_dev->dev, "WARNING: SMBus interface set to "  in piix4_setup()
289 			 * noted that many Dell machines have the SMBus  in piix4_setup()
299 				   "WARNING: SMBus interface has been FORCEFULLY ENABLED!\n");  in piix4_setup()
302 				"SMBus Host Controller not enabled!\n");  in piix4_setup()
309 		dev_dbg(&PIIX4_dev->dev, "Using IRQ for SMBus\n");  in piix4_setup()
311 		dev_dbg(&PIIX4_dev->dev, "Using SMI# for SMBus\n");  in piix4_setup()
318 		 "SMBus Host Controller at 0x%x, revision %d\n",  in piix4_setup()
364 			"SMBus Host Controller not enabled!\n");  in piix4_setup_sb800_smba()
380 	/* SB800 and later SMBus does not support forcing address */  in piix4_setup_sb800()
382 		dev_err(&PIIX4_dev->dev, "SMBus does not support "  in piix4_setup_sb800()
387 	/* Determine the address of the SMBus areas */  in piix4_setup_sb800()
410 		dev_err(&PIIX4_dev->dev, "SMBus region 0x%x already in use!\n",  in piix4_setup_sb800()
415 	/* Aux SMBus does not support IRQ information */  in piix4_setup_sb800()
418 			 "Auxiliary SMBus Host Controller at 0x%x\n",  in piix4_setup_sb800()
423 	/* Request the SMBus I2C bus config region */  in piix4_setup_sb800()
425 		dev_err(&PIIX4_dev->dev, "SMBus I2C bus config region "  in piix4_setup_sb800()
434 		dev_dbg(&PIIX4_dev->dev, "Using IRQ for SMBus\n");  in piix4_setup_sb800()
436 		dev_dbg(&PIIX4_dev->dev, "Using SMI# for SMBus\n");  in piix4_setup_sb800()
439 		 "SMBus Host Controller at 0x%x, revision %d\n",  in piix4_setup_sb800()
475 		 "Using register 0x%02x for SMBus port selection\n",  in piix4_setup_sb800()
485 	/* Set up auxiliary SMBus controllers found on some  in piix4_setup_aux()
490 	/* Read address of auxiliary SMBus controller */  in piix4_setup_aux()
494 			"Auxiliary SMBus controller not enabled\n");  in piix4_setup_aux()
501 			"Auxiliary SMBus base address uninitialized\n");  in piix4_setup_aux()
509 		dev_err(&PIIX4_dev->dev, "Auxiliary SMBus region 0x%x "  in piix4_setup_aux()
515 		 "Auxiliary SMBus Host Controller at 0x%x\n",  in piix4_setup_aux()
532 	/* Make sure the SMBus host is ready to start transmitting */  in piix4_transaction()
534 		dev_dbg(&piix4_adapter->dev, "SMBus busy (%02x). "  in piix4_transaction()
558 	/* If the SMBus is still busy, we give up */  in piix4_transaction()
560 		dev_err(&piix4_adapter->dev, "SMBus Timeout!\n");  in piix4_transaction()
571 		dev_dbg(&piix4_adapter->dev, "Bus collision! SMBus may be "  in piix4_transaction()
773  * Handles access to multiple SMBus ports on the SB800.
795 	/* Request the SMBUS semaphore, avoid conflicts with the IMC */  in piix4_access_sb800()
807 	/* SMBus is still owned by the IMC, we give up */  in piix4_access_sb800()
817 	 * All this is done through SMBus and can/will collide  in piix4_access_sb800()
956 		"SMBus PIIX4 adapter%s at %04x", name, smba);  in piix4_add_adapter()
1061 		 * Try to register multiplexed main SMBus adapter,  in piix4_probe()
1072 		/* Try to register main SMBus adapter, give up if we can't */  in piix4_probe()
1080 	/* Check for auxiliary SMBus on some AMD chipsets */  in piix4_probe()
1157 MODULE_DESCRIPTION("PIIX4 SMBus driver");