diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-ali15x3.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-ali15x3.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/drivers/i2c/busses/i2c-ali15x3.c b/drivers/i2c/busses/i2c-ali15x3.c index cc58feacd082..418d11266671 100644 --- a/drivers/i2c/busses/i2c-ali15x3.c +++ b/drivers/i2c/busses/i2c-ali15x3.c @@ -39,7 +39,7 @@ We make sure that the SMB is enabled. We leave the ACPI alone. This driver controls the SMB Host only. - The SMB Slave controller on the M15X3 is not enabled. + The SMB Target controller on the M15X3 is not enabled. This driver does not use interrupts. */ @@ -165,14 +165,15 @@ static int ali15x3_setup(struct pci_dev *ALI15X3_dev) } if(force_addr) { + int ret; + dev_info(&ALI15X3_dev->dev, "forcing ISA address 0x%04X\n", ali15x3_smba); - if (PCIBIOS_SUCCESSFUL != pci_write_config_word(ALI15X3_dev, - SMBBA, - ali15x3_smba)) + ret = pci_write_config_word(ALI15X3_dev, SMBBA, ali15x3_smba); + if (ret != PCIBIOS_SUCCESSFUL) goto error; - if (PCIBIOS_SUCCESSFUL != pci_read_config_word(ALI15X3_dev, - SMBBA, &a)) + ret = pci_read_config_word(ALI15X3_dev, SMBBA, &a); + if (ret != PCIBIOS_SUCCESSFUL) goto error; if ((a & ~(ALI15X3_SMB_IOSIZE - 1)) != ali15x3_smba) { /* make sure it works */ @@ -293,10 +294,8 @@ static int ali15x3_transaction(struct i2c_adapter *adap) && (timeout++ < MAX_TIMEOUT)); /* If the SMBus is still busy, we give up */ - if (timeout > MAX_TIMEOUT) { + if (timeout > MAX_TIMEOUT) result = -ETIMEDOUT; - dev_err(&adap->dev, "SMBus Timeout!\n"); - } if (temp & ALI15X3_STS_TERM) { result = -EIO; @@ -460,7 +459,7 @@ static const struct i2c_algorithm smbus_algorithm = { static struct i2c_adapter ali15x3_adapter = { .owner = THIS_MODULE, - .class = I2C_CLASS_HWMON | I2C_CLASS_SPD, + .class = I2C_CLASS_HWMON, .algo = &smbus_algorithm, }; @@ -473,6 +472,8 @@ MODULE_DEVICE_TABLE (pci, ali15x3_ids); static int ali15x3_probe(struct pci_dev *dev, const struct pci_device_id *id) { + int ret; + if (ali15x3_setup(dev)) { dev_err(&dev->dev, "ALI15X3 not detected, module not inserted.\n"); @@ -484,7 +485,15 @@ static int ali15x3_probe(struct pci_dev *dev, const struct pci_device_id *id) snprintf(ali15x3_adapter.name, sizeof(ali15x3_adapter.name), "SMBus ALI15X3 adapter at %04x", ali15x3_smba); - return i2c_add_adapter(&ali15x3_adapter); + ret = i2c_add_adapter(&ali15x3_adapter); + if (ret) + goto release_region; + + return 0; + +release_region: + release_region(ali15x3_smba, ALI15X3_SMB_IOSIZE); + return ret; } static void ali15x3_remove(struct pci_dev *dev) |