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Commit 88307eb3 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
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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: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 1a39275a

include/media/v4l2-i2c-drv-legacy.h

+6 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ struct v4l2_i2c_driver_data { 
	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_attach_legacy(struct i2c_adapter *adapter, int address, 


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;

include/media/v4l2-i2c-drv.h

+1 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ struct v4l2_i2c_driver_data { 
	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;

};