Messages in this thread Patch in this message | | | From | nick.dyer@itdev ... | Subject | [PATCH 1/2] Input: atmel_mxt_ts - downgrade warning about empty interrupts | Date | Tue, 9 Sep 2014 15:50:48 +0100 |
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From: Nick Dyer <nick.dyer@itdev.co.uk>
In the case where the CHG/interrupt line mode is not configured correctly, this warning is output to dmesg output for each interrupt. Downgrade the message to debug.
Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk> --- drivers/input/touchscreen/atmel_mxt_ts.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index db178ed..d954b81 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -837,7 +837,12 @@ static irqreturn_t mxt_process_messages_t44(struct mxt_data *data) count = data->msg_buf[0]; if (count == 0) { - dev_warn(dev, "Interrupt triggered but zero messages\n"); + /* + * This condition is caused by the CHG line being configured + * in Mode 0. It results in unnecessary I2C operations but it + * is benign. + */ + dev_dbg(dev, "Interrupt triggered but zero messages\n"); return IRQ_NONE; } else if (count > data->max_reportid) { dev_err(dev, "T44 count %d exceeded max report id\n", count); -- 1.9.1
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