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| author |   Jean Delvare <khali@linux-fr.org> | 2011-05-24 20:58:49 +0200 |
|---|---|---|
| committer |   Jean Delvare <khali@endymion.delvare> | 2011-05-24 20:58:49 +0200 |
| commit | e7198fbf50fd5db4cc9681beed760403f794320d (patch) | |
| tree | bc0c9ce63b540b697d4a877b880f6ebd4d5d2f59 /drivers/i2c | |
| parent | i2c-i801: SMBus patch for Intel Panther Point DeviceIDs (diff) | |
| download | linux-dev-e7198fbf50fd5db4cc9681beed760403f794320d.tar.xz linux-dev-e7198fbf50fd5db4cc9681beed760403f794320d.zip | |
i2c-i801: Don't probe for slaves on IDF channels
I don't know if Fujitsu is ever going to produce Patsburg-based
machines, but if they do, I'd rather not probe the secondary (IDF)
SMBus channels. At least not until we have a good reason for doing so.
On a side note, I'm not even sure if it is right to enable detection
of HWMON and DDC devices on the IDF channels. Time will tell...
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-i801.c | 46 |
1 files changed, 31 insertions, 15 deletions
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 6d36ad628caa..4228691ffde8 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -160,6 +160,8 @@ static struct pci_driver i801_driver; #define FEATURE_BLOCK_BUFFER (1 << 1) #define FEATURE_BLOCK_PROC (1 << 2) #define FEATURE_I2C_BLOCK_READ (1 << 3) +/* Not really a feature, but it's convenient to handle it as such */ +#define FEATURE_IDF (1 << 15) static const char *i801_feature_names[] = { "SMBus PEC", @@ -738,6 +740,29 @@ static void __devinit dmi_check_onboard_devices(const struct dmi_header *dm, } #endif +/* Register optional slaves */ +static void __devinit i801_probe_optional_slaves(struct i801_priv *priv) +{ + /* Only register slaves on main SMBus channel */ + if (priv->features & FEATURE_IDF) + return; + +#if defined CONFIG_INPUT_APANEL || defined CONFIG_INPUT_APANEL_MODULE + if (apanel_addr) { + struct i2c_board_info info; + + memset(&info, 0, sizeof(struct i2c_board_info)); + info.addr = apanel_addr; + strlcpy(info.type, "fujitsu_apanel", I2C_NAME_SIZE); + i2c_new_device(&priv->adapter, &info); + } +#endif +#if defined CONFIG_SENSORS_FSCHMD || defined CONFIG_SENSORS_FSCHMD_MODULE + if (dmi_name_in_vendors("FUJITSU")) + dmi_walk(dmi_check_onboard_devices, &priv->adapter); +#endif +} + static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id *id) { @@ -756,6 +781,11 @@ static int __devinit i801_probe(struct pci_dev *dev, priv->pci_dev = dev; switch (dev->device) { + case PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF0: + case PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF1: + case PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS_IDF2: + priv->features |= FEATURE_IDF; + /* fall through */ default: priv->features |= FEATURE_I2C_BLOCK_READ; /* fall through */ @@ -841,21 +871,7 @@ static int __devinit i801_probe(struct pci_dev *dev, goto exit_release; } - /* Register optional slaves */ -#if defined CONFIG_INPUT_APANEL || defined CONFIG_INPUT_APANEL_MODULE - if (apanel_addr) { - struct i2c_board_info info; - - memset(&info, 0, sizeof(struct i2c_board_info)); - info.addr = apanel_addr; - strlcpy(info.type, "fujitsu_apanel", I2C_NAME_SIZE); - i2c_new_device(&priv->adapter, &info); - } -#endif -#if defined CONFIG_SENSORS_FSCHMD || defined CONFIG_SENSORS_FSCHMD_MODULE - if (dmi_name_in_vendors("FUJITSU")) - dmi_walk(dmi_check_onboard_devices, &priv->adapter); -#endif + i801_probe_optional_slaves(priv); pci_set_drvdata(dev, priv); return 0; |