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Input: atmel_mxt_ts - read whole message to make CHG low

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

Signed-off-by: Iiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Iiro Valkonen 2011-02-04 00:51:05 -08:00 committed by Dmitry Torokhov
parent 7686b108d8
commit 26cdb1ae76
1 changed files with 3 additions and 3 deletions
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6
drivers/input/touchscreen/atmel_mxt_ts.c
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@ -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");