V4L/DVB (6460): v4l2-i2c-drv: add legacy_probe function pointer
Some devices do complicated tests whether the device can be probed or not.
Add a legacy_probe function pointer to support that.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/include/media/v4l2-i2c-drv-legacy.h b/include/media/v4l2-i2c-drv-legacy.h
index c059b32..433c984 100644
--- a/include/media/v4l2-i2c-drv-legacy.h
+++ b/include/media/v4l2-i2c-drv-legacy.h
@@ -29,6 +29,7 @@
int (*remove)(struct i2c_client *client);
int (*suspend)(struct i2c_client *client, pm_message_t state);
int (*resume)(struct i2c_client *client);
+ int (*legacy_probe)(struct i2c_adapter *adapter);
int legacy_class;
};
@@ -45,6 +46,11 @@
static int v4l2_i2c_drv_probe_legacy(struct i2c_adapter *adapter)
{
+ if (v4l2_i2c_data.legacy_probe) {
+ if (v4l2_i2c_data.legacy_probe(adapter))
+ return i2c_probe(adapter, &addr_data, v4l2_i2c_drv_attach_legacy);
+ return 0;
+ }
if (adapter->class & v4l2_i2c_data.legacy_class)
return i2c_probe(adapter, &addr_data, v4l2_i2c_drv_attach_legacy);
return 0;