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Input: atmel_mxt_ts - derive phys from i2c client adapter

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This allows userspace to more easily distinguish which bus a particular
atmel_mxt_ts device is attached to.

The resulting phys will be something like:
 i2c-1-0067/input0

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
This commit is contained in:
Daniel Kurtz 2012-06-28 21:08:02 +08:00 committed by Henrik Rydberg
parent 27c347d64f
commit ec02ac2b7e
1 changed files with 5 additions and 0 deletions
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5
drivers/input/touchscreen/atmel_mxt_ts.c
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@ -250,6 +250,7 @@ struct mxt_finger {
struct mxt_data {
struct i2c_client *client;
struct input_dev *input_dev;
char phys[64]; /* device physical location */
const struct mxt_platform_data *pdata;
struct mxt_object *object_table;
struct mxt_info info;
@ -1106,6 +1107,10 @@ static int __devinit mxt_probe(struct i2c_client *client,
}
input_dev->name = "Atmel maXTouch Touchscreen";
snprintf(data->phys, sizeof(data->phys), "i2c-%u-%04x/input0",
client->adapter->nr, client->addr);
input_dev->phys = data->phys;
input_dev->id.bustype = BUS_I2C;
input_dev->dev.parent = &client->dev;
input_dev->open = mxt_input_open;