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Input: qt2160 - fix qt2160_write() implementation

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The previous implementation of qt2160_write() didn't work properly because
the value was actually not written to the device. Probably nobody detected
this because the only write that was issued was the one related to auto
calibration.

In order to fix the problem use a similar aproach as qt1070 instead.

Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Javier Martin 2012-10-24 23:55:01 -07:00 committed by Dmitry Torokhov
parent e52278a368
commit a6e8c0a253
1 changed files with 5 additions and 14 deletions
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19
drivers/input/keyboard/qt2160.c
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@ -207,23 +207,14 @@ static int __devinit qt2160_read(struct i2c_client *client, u8 reg)
static int __devinit qt2160_write(struct i2c_client *client, u8 reg, u8 data)
{
int error;
int ret;
error = i2c_smbus_write_byte(client, reg);
if (error) {
ret = i2c_smbus_write_byte_data(client, reg, data);
if (ret < 0)
dev_err(&client->dev,
"couldn't send request. Returned %d\n", error);
return error;
}
"couldn't write data. Returned %d\n", ret);
error = i2c_smbus_write_byte(client, data);
if (error) {
dev_err(&client->dev,
"couldn't write data. Returned %d\n", error);
return error;
}
return error;
return ret;
}