From 651b4608811796ee6ddea5ce33e8db7ef6ea42b1 Mon Sep 17 00:00:00 2001 From: Nick Dyer Date: Tue, 9 Sep 2014 11:24:21 -0700 Subject: [PATCH] Input: atmel_mxt_ts - downgrade warning about empty interrupts 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 Signed-off-by: Dmitry Torokhov --- 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 db178ed2b47e..d954b81243fe 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); -- 2.20.1