i2c-i801: Don't depend on other kernel driver config options

Don't let other driver config options influence us, as it makes the
code more complex and fragile for a small benefit. There's nothing
wrong with instantiating I2C devices even if they don't have a driver.
And we're talking about 835 extra bytes in the binary on x86-64,
that's hardly worth arguing about.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: David Woodhouse <david.woodhouse@intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>

2 files changed, 7 insertions, 10 deletions

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index b24ca4e98ef8..428d098c35ef 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -79,6 +79,7 @@ config I2C_AMD8111
 config I2C_I801
         tristate "Intel 82801 (ICH/PCH)"
         depends on PCI
+        select CHECK_SIGNATURE if X86 && DMI
         help
           If you say yes to this option, support will be included for the Intel
           801 family of mainboard I2C interfaces.  Specifically, the following
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 1aa5be019cfc..ab26840d0c70 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -638,7 +638,7 @@ static const struct pci_device_id i801_ids[] = {
 
 MODULE_DEVICE_TABLE(pci, i801_ids);
 
-#if defined CONFIG_INPUT_APANEL || defined CONFIG_INPUT_APANEL_MODULE
+#if defined CONFIG_X86 && defined CONFIG_DMI
 static unsigned char apanel_addr;
 
 /* Scan the system ROM for the signature "FJKEYINF" */
@@ -668,11 +668,7 @@ static void __init input_apanel_init(void)
         }
         iounmap(bios);
 }
-#else
-static void __init input_apanel_init(void) {}
-#endif
 
-#if defined CONFIG_SENSORS_FSCHMD || defined CONFIG_SENSORS_FSCHMD_MODULE
 struct dmi_onboard_device_info {
         const char *name;
         u8 type;
@@ -738,7 +734,6 @@ static void __devinit dmi_check_onboard_devices(const struct dmi_header *dm,
                 dmi_check_onboard_device(type, name, adap);
         }
 }
-#endif
 
 /* Register optional slaves */
 static void __devinit i801_probe_optional_slaves(struct i801_priv *priv)
@@ -747,7 +742,6 @@ static void __devinit i801_probe_optional_slaves(struct i801_priv *priv)
         if (priv->features & FEATURE_IDF)
                 return;
 
-#if defined CONFIG_INPUT_APANEL || defined CONFIG_INPUT_APANEL_MODULE
         if (apanel_addr) {
                 struct i2c_board_info info;
 
@@ -756,12 +750,14 @@ static void __devinit i801_probe_optional_slaves(struct i801_priv *priv)
                 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
 }
+#else
+static void __init input_apanel_init(void) {}
+static void __devinit i801_probe_optional_slaves(struct i801_priv *priv) {}
+#endif  /* CONFIG_X86 && CONFIG_DMI */
 
 static int __devinit i801_probe(struct pci_dev *dev,
                                 const struct pci_device_id *id)