Commit 2c005598 authored Mar 21, 2015 by Maxime Ripard Committed by Dmitry Torokhov Mar 24, 2015

Input: edt-ft5x06 - allow to setting the maximum axes value through the DT



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 <maxime.ripard@free-electrons.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

parent 0a363a38

drivers/input/touchscreen/edt-ft5x06.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -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");