A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Input: edt-ft5x06 - allow to setting the maximum axes value through the DT

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Currently the driver relies on some obscure and undocumented register to set
the maximum axis value.

The reported value is way too high to be meaningful, which confuses some
userspace tools like QT's evdevtouch plugin which try to scale the reported
events to the maximum values.

Use the values from the DT to set meaningful values.

Signed-off-by: Maxime Ripard <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>
This commit is contained in:
Maxime Ripard 2015-03-21 20:18:06 -07:00 • committed by Dmitry Torokhov
commit 2c00559884
1 changed files with 5 additions and 0 deletions
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5
drivers/input/touchscreen/edt-ft5x06.c
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@ -37,6 +37,7 @@
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/input/mt.h>
#include <linux/input/touchscreen.h>
#include <linux/input/edt-ft5x06.h>
#define MAX_SUPPORT_POINTS 5
@ -1044,6 +1045,10 @@ static int edt_ft5x06_ts_probe(struct i2c_client *client,
0, tsdata->num_x * 64 - 1, 0, 0);
input_set_abs_params(input, ABS_MT_POSITION_Y,
0, tsdata->num_y * 64 - 1, 0, 0);
if (!pdata)
touchscreen_parse_of_params(input);
error = input_mt_init_slots(input, MAX_SUPPORT_POINTS, 0);
if (error) {
dev_err(&client->dev, "Unable to init MT slots.\n");