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authorNick Dyer <nick.dyer@itdev.co.uk>2014-09-09 11:24:21 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2014-09-09 16:52:15 -0700
commit651b4608811796ee6ddea5ce33e8db7ef6ea42b1 (patch)
treee85df276f1e7b80d133b9130890610bb701c6fa4 /drivers
parent31b2b16d3f356b0e463e603643d8b4b047ba2db8 (diff)
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 <nick.dyer@itdev.co.uk> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/input/touchscreen/atmel_mxt_ts.c7
1 files changed, 6 insertions, 1 deletions
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);