[PATCH] I2C: Drop probe parameter of i2c-keywest

The i2c-keywest driver has a "probe" module parameter which enables bus
scanning at load time. This can be done in userspace with the i2cdetect
tool (part of the lm_sensors package) instead. What's more, i2cdetect
gives more control on the way the bus is scanned, and is safer
(i2c-keywest currently scans reserved addresses and doesn't properly
handle the famous 24RF08 corruption case.)

Thus, I would propose that this module parameter be simply dropped.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/i2c/busses/i2c-keywest.c b/drivers/i2c/busses/i2c-keywest.c
index e60ed6f..37b49c2 100644 (file)
--- a/drivers/i2c/busses/i2c-keywest.c
+++ b/drivers/i2c/busses/i2c-keywest.c
@@ -87,12 +87,9 @@ static const char *__kw_state_names[] = {
 };
 #endif /* DEBUG */
 
-static int probe;
-
 MODULE_AUTHOR("Benjamin Herrenschmidt <benh@kernel.crashing.org>");
 MODULE_DESCRIPTION("I2C driver for Apple's Keywest");
 MODULE_LICENSE("GPL");
-module_param(probe, bool, 0);
 
 #ifdef POLLED_MODE
 /* Don't schedule, the g5 fan controller is too
@@ -632,15 +629,6 @@ create_iface(struct device_node *np, struct device *dev)
                                chan->adapter.name);
                        i2c_set_adapdata(&chan->adapter, NULL);
                }
-               if (probe) {
-                       printk("Probe: ");
-                       for (addr = 0x00; addr <= 0x7f; addr++) {
-                               if (i2c_smbus_xfer(&chan->adapter,addr,
-                                   0,0,0,I2C_SMBUS_QUICK,NULL) >= 0)
-                                       printk("%02x ", addr);
-                       }
-                       printk("\n");
-               }
        }
 
        printk(KERN_INFO "Found KeyWest i2c on \"%s\", %d channel%s, stepping: %d bits\n",