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Commit 26cdb1ae authored by Iiro Valkonen's avatar Iiro Valkonen Committed by Dmitry Torokhov
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Input: atmel_mxt_ts - read whole message to make CHG low 



Read the whole message, as reading just the first byte isn't always
guaranteed to clear the message.

Signed-off-by: default avatarIiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 7686b108

drivers/input/touchscreen/atmel_mxt_ts.c

+3 −3
Original line number Diff line number Diff line
@@ -823,16 +823,16 @@ static int mxt_check_matrix_size(struct mxt_data *data) 
static int mxt_make_highchg(struct mxt_data *data)

{

	struct device *dev = &data->client->dev;

	struct mxt_message message;

	int count = 10;

	int error;

	u8 val;



	/* Read dummy message to make high CHG pin */

	do {

		error = mxt_read_object(data, MXT_GEN_MESSAGE, 0, &val);

		error = mxt_read_message(data, &message);

		if (error)

			return error;

	} while ((val != 0xff) && --count);

	} while (message.reportid != 0xff && --count);



	if (!count) {

		dev_err(dev, "CHG pin isn't cleared\n");