[PATCH] I2C: Separate non-i2c hwmon drivers from i2c-core (5/9)

Call the ISA chip drivers detection function directly instead of relying
on i2c_detect. The net effect is that address lists won't be handled
anymore, but they were mostly useless in the ISA case anyway (pc87360,
smsc47m1, smsc47b397 had already dropped them).

We don't need to handle multiple devices, all we may need is a way to
force a given address instead of the original one (some drivers already
do: sis5595, via686a, w83627hf), and, for drivers supporting multiple
chips, a way to force one given kind. All this may be added later on
demand, but I actually don't think there will be much demand.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 11 insertions, 5 deletions

diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index a438adb4b09f..722ef0cd5c00 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -48,7 +48,8 @@
 /* Addresses to scan */
 static unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d,
                                         0x2e, 0x2f, I2C_CLIENT_END };
-static unsigned int normal_isa[] = { 0x0290, I2C_CLIENT_ISA_END };
+static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
+static unsigned short isa_address = 0x290;
 
 /* Insmod parameters */
 SENSORS_INSMOD_2(it87, it8712);
@@ -222,7 +223,7 @@ struct it87_data {
 
 
 static int it87_attach_adapter(struct i2c_adapter *adapter);
-static int it87_find(int *address);
+static int it87_isa_attach_adapter(struct i2c_adapter *adapter);
 static int it87_detect(struct i2c_adapter *adapter, int address, int kind);
 static int it87_detach_client(struct i2c_client *client);
 
@@ -246,7 +247,7 @@ static struct i2c_driver it87_driver = {
 static struct i2c_driver it87_isa_driver = {
         .owner          = THIS_MODULE,
         .name           = "it87-isa",
-        .attach_adapter = it87_attach_adapter,
+        .attach_adapter = it87_isa_attach_adapter,
         .detach_client  = it87_detach_client,
 };
 
@@ -701,7 +702,12 @@ static int it87_attach_adapter(struct i2c_adapter *adapter)
         return i2c_detect(adapter, &addr_data, it87_detect);
 }
 
-/* SuperIO detection - will change normal_isa[0] if a chip is found */
+static int it87_isa_attach_adapter(struct i2c_adapter *adapter)
+{
+        return it87_detect(adapter, isa_address, -1);
+}
+
+/* SuperIO detection - will change isa_address if a chip is found */
 static int it87_find(int *address)
 {
         int err = -ENODEV;
@@ -1184,7 +1190,7 @@ static int __init sm_it87_init(void)
         int addr, res;
 
         if (!it87_find(&addr)) {
-                normal_isa[0] = addr;
+                isa_address = addr;
         }
 
         res = i2c_add_driver(&it87_driver);