Signed-off-by: Carlos Palminha <[email protected]> --- drivers/i2c/busses/i2c-piix4.c | 94 ++++++++++++++++++++++++------------------ 1 file changed, 54 insertions(+), 40 deletions(-)
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c index 5d6f637..85b1052 100644 --- a/drivers/i2c/busses/i2c-piix4.c +++ b/drivers/i2c/busses/i2c-piix4.c @@ -1,32 +1,32 @@ /* - Copyright (c) 1998 - 2002 Frodo Looijaard <[email protected]> and - Philip Edelbrock <[email protected]> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. -*/ + * Copyright (c) 1998 - 2002 Frodo Looijaard <[email protected]> and + * Philip Edelbrock <[email protected]> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ /* - Supports: - Intel PIIX4, 440MX - Serverworks OSB4, CSB5, CSB6, HT-1000, HT-1100 - ATI IXP200, IXP300, IXP400, SB600, SB700/SP5100, SB800 - AMD Hudson-2, ML, CZ - SMSC Victory66 - - Note: we assume there can only be one device, with one or more - SMBus interfaces. - The device can register multiple i2c_adapters (up to PIIX4_MAX_ADAPTERS). - For devices supporting multiple ports the i2c_adapter should provide - an i2c_algorithm to access them. -*/ + * Supports: + * Intel PIIX4, 440MX + * Serverworks OSB4, CSB5, CSB6, HT-1000, HT-1100 + * ATI IXP200, IXP300, IXP400, SB600, SB700/SP5100, SB800 + * AMD Hudson-2, ML, CZ + * SMSC Victory66 + * + * Note: we assume there can only be one device, with one or more + * SMBus interfaces. + * The device can register multiple i2c_adapters (up to PIIX4_MAX_ADAPTERS). + * For devices supporting multiple ports the i2c_adapter should provide + * an i2c_algorithm to access them. + */ #include <linux/module.h> #include <linux/moduleparam.h> @@ -97,14 +97,18 @@ /* insmod parameters */ -/* If force is set to anything different from 0, we forcibly enable the - PIIX4. DANGEROUS! */ +/* + * If force is set to anything different from 0, we forcibly enable the + * PIIX4. DANGEROUS! + */ static int force; module_param (force, int, 0); MODULE_PARM_DESC(force, "Forcibly enable the PIIX4. DANGEROUS!"); -/* If force_addr is set to anything different from 0, we forcibly enable - the PIIX4 at the given address. VERY DANGEROUS! */ +/* + * If force_addr is set to anything different from 0, we forcibly enable + * the PIIX4 at the given address. VERY DANGEROUS! + */ static int force_addr; module_param (force_addr, int, 0); MODULE_PARM_DESC(force_addr, @@ -132,8 +136,10 @@ static const struct dmi_system_id piix4_dmi_blacklist[] = { { } }; -/* The IBM entry is in a separate table because we only check it - on Intel-based systems */ +/* + * The IBM entry is in a separate table because we only check it + * on Intel-based systems + */ static const struct dmi_system_id piix4_dmi_ibm[] = { { .ident = "IBM", @@ -172,8 +178,10 @@ static int piix4_setup(struct pci_dev *PIIX4_dev, (PIIX4_dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5)) srvrworks_csb5_delay = 1; - /* On some motherboards, it was reported that accessing the SMBus - caused severe hardware problems */ + /* + * On some motherboards, it was reported that accessing the SMBus + * caused severe hardware problems + */ if (dmi_check_system(piix4_dmi_blacklist)) { dev_err(&PIIX4_dev->dev, "Accessing the SMBus on this system is unsafe!\n"); @@ -215,8 +223,10 @@ static int piix4_setup(struct pci_dev *PIIX4_dev, pci_read_config_byte(PIIX4_dev, SMBHSTCFG, &temp); - /* If force_addr is set, we program the new address here. Just to make - sure, we disable the PIIX4 first. */ + /* + * If force_addr is set, we program the new address here. Just to make + * sure, we disable the PIIX4 first. + */ if (force_addr) { pci_write_config_byte(PIIX4_dev, SMBHSTCFG, temp & 0xfe); pci_write_config_word(PIIX4_dev, SMBBA, piix4_smba); @@ -369,8 +379,10 @@ static int piix4_setup_aux(struct pci_dev *PIIX4_dev, const struct pci_device_id *id, unsigned short base_reg_addr) { - /* Set up auxiliary SMBus controllers found on some - * AMD chipsets e.g. SP5100 (SB700 derivative) */ + /* + * Set up auxiliary SMBus controllers found on some + * AMD chipsets e.g. SP5100 (SB700 derivative) + */ unsigned short piix4_smba; @@ -804,8 +816,10 @@ static int piix4_probe(struct pci_dev *dev, const struct pci_device_id *id) } if (retval > 0) { - /* Try to add the aux adapter if it exists, - * piix4_add_adapter will clean up if this fails */ + /* + * Try to add the aux adapter if it exists, + * piix4_add_adapter will clean up if this fails + */ piix4_add_adapter(dev, retval, false, 0, is_sb800 ? piix4_aux_port_name_sb800 : "", &piix4_aux_adapter); -- 2.9.3
