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-rw-r--r--drivers/i2c/i2c-core.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 57a86f4aab43..fe80f85896e2 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1878,6 +1878,13 @@ static int __init i2c_init(void)
{
int retval;
+ retval = of_alias_get_highest_id("i2c");
+
+ down_write(&__i2c_board_lock);
+ if (retval >= __i2c_first_dynamic_bus_num)
+ __i2c_first_dynamic_bus_num = retval + 1;
+ up_write(&__i2c_board_lock);
+
retval = bus_register(&i2c_bus_type);
if (retval)
return retval;