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| author |   Duson Lin <dusonlin@emc.com.tw> | 2015-04-20 10:19:24 -0700 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-04-20 10:30:09 -0700 |
| commit | 9f423801c9e849df56b37833df895685c9d8a940 (patch) | |
| tree | 2fcb2973ca8422f12540f5a65fbd6fd3a161ed22 /drivers/input/mouse/elan_i2c_smbus.c | |
| parent | Input: elan_i2c - report hovering contacts (diff) | |
| download | linux-dev-9f423801c9e849df56b37833df895685c9d8a940.tar.xz linux-dev-9f423801c9e849df56b37833df895685c9d8a940.zip | |
Input: elan_i2c - fix calculating number of x and y traces.
According to Elan's firmware engineers we should not be subtracting 1 form
the raw number of x and y traces so that the pitch size is correct. For
example, if the touchpad x resolution is 2800 and x trace number is 20,
the pitch size of x should be 2800/20 = 140, not 2800/19 = 147.36.
Signed-off-by: Duson Lin <dusonlin@emc.com.tw>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/mouse/elan_i2c_smbus.c')
| -rw-r--r-- | drivers/input/mouse/elan_i2c_smbus.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/input/mouse/elan_i2c_smbus.c b/drivers/input/mouse/elan_i2c_smbus.c index 62391b281020..30ab80dbcdd6 100644 --- a/drivers/input/mouse/elan_i2c_smbus.c +++ b/drivers/input/mouse/elan_i2c_smbus.c @@ -268,8 +268,8 @@ static int elan_smbus_get_num_traces(struct i2c_client *client, return error; } - *x_traces = val[1] - 1; - *y_traces = val[2] - 1; + *x_traces = val[1]; + *y_traces = val[2]; return 0; } |