@@ -1511,16 +1511,8 @@ static int __process_new_adapter(struct device_driver *d, void *data)
return i2c_do_add_adapter(to_i2c_driver(d), data);
}
-static int i2c_register_adapter(struct i2c_adapter *adap)
+static int i2c_init_adapter(struct i2c_adapter *adap)
{
- int res = 0;
-
- /* Can't register until after driver model init */
- if (WARN_ON(!is_registered)) {
- res = -EAGAIN;
- goto out_list;
- }
-
/* Sanity checks */
if (unlikely(adap->name[0] == '\0')) {
pr_err("i2c-core: Attempt to register an adapter with "
@@ -1548,6 +1540,23 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
if (adap->timeout == 0)
adap->timeout = HZ;
+ return 0;
+}
+
+static int i2c_register_adapter(struct i2c_adapter *adap)
+{
+ int res = 0;
+
+ /* Can't register until after driver model init */
+ if (WARN_ON(!is_registered)) {
+ res = -EAGAIN;
+ goto out_list;
+ }
+
+ res = i2c_init_adapter(adap);
+ if (res)
+ goto out_list;
+
dev_set_name(&adap->dev, "i2c-%d", adap->nr);
adap->dev.bus = &i2c_bus_type;
adap->dev.type = &i2c_adapter_type;
In order to handle devices that need to use the adapter prior to it being registered with the system, we first need to split out the initialisation of the adapter out of i2c_register_adapter. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Wolfram Sang <wsa@the-dreams.de> Cc: linux-i2c@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: dri-devel@lists.freedesktop.org --- drivers/i2c/i2c-core.c | 27 ++++++++++++++++++--------- 1 file changed, 18 insertions(+), 9 deletions(-)