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Commit 8a123ff1 authored by Figo Wang's avatar Figo Wang Committed by Sudhakar Manapati
Browse files

input: touchpanel: Release all touches during suspend 



Release all the touches before going to suspend to avoid
sticky touches and correct multitouch ID error.

  This patch is propagated from 3.4 kernel
    commit: 63ad82b46cac81a330aa7628fe97bc7b371d091e
    input: touchpanel: Release all touches during suspend

Change-Id: I5dd84d44478291e16fd577aad5cf06503e44fbde
Signed-off-by: default avatarFigo Wang <figow@codeaurora.org>
parent 71e8bfde

drivers/input/touchscreen/ft5x06_ts.c

+10 −7
Original line number Diff line number Diff line
@@ -308,7 +308,7 @@ static void ft5x06_report_value(struct ft5x06_ts_data *data) 
			event->pressure = 0;

		}



		input_mt_slot(data->input_dev, i);

		input_mt_slot(data->input_dev, event->finger_id[i]);

		input_mt_report_slot_state(data->input_dev, MT_TOOL_FINGER,

					!!event->pressure);
@@ -317,10 +317,6 @@ static void ft5x06_report_value(struct ft5x06_ts_data *data) 
					 event->x[i]);

			input_report_abs(data->input_dev, ABS_MT_POSITION_Y,

					 event->y[i]);

			input_report_abs(data->input_dev, ABS_MT_PRESSURE,

					 event->pressure);

			input_report_abs(data->input_dev, ABS_MT_TRACKING_ID,

					 event->finger_id[i]);

			input_report_abs(data->input_dev, ABS_MT_TOUCH_MAJOR,

					 event->pressure);

		}
@@ -494,7 +490,7 @@ pwr_deinit: 
static int ft5x06_ts_suspend(struct device *dev)

{

	struct ft5x06_ts_data *data = dev_get_drvdata(dev);

	char txbuf[2];

	char txbuf[2], i;



	if (data->loading_fw) {

		dev_info(dev, "Firmware loading in process...\n");
@@ -508,6 +504,14 @@ static int ft5x06_ts_suspend(struct device *dev) 


	disable_irq(data->client->irq);



	/* release all touches */

	for (i = 0; i < CFG_MAX_TOUCH_POINTS; i++) {

		input_mt_slot(data->input_dev, i);

		input_mt_report_slot_state(data->input_dev, MT_TOOL_FINGER, 0);

	}

	input_report_key(data->input_dev, BTN_TOUCH, 0);

	input_sync(data->input_dev);



	if (gpio_is_valid(data->pdata->reset_gpio)) {

		txbuf[0] = FT_REG_PMODE;

		txbuf[1] = FT_PMODE_HIBERNATE;
@@ -1230,7 +1234,6 @@ static int ft5x06_ts_probe(struct i2c_client *client, 
	input_set_abs_params(input_dev, ABS_MT_POSITION_Y, pdata->y_min,

			     pdata->y_max, 0, 0);

	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, FT_PRESS, 0, 0);

	input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, FT_PRESS, 0, 0);



	err = input_register_device(input_dev);

	if (err) {