power: supply: bq24190_charger: Fix irq trigger to IRQF_TRIGGER_FALLING

The interrupt signal is TRIGGER_FALLING. This is is specified in the
data sheet PIN FUNCTIONS: "The INT pin sends active low, 256us
pulse to host to report charger device status and fault."

Also the direction can be seen in the data sheet Figure 37 "BQ24190
with D+/D- Detection and USB On-The-Go (OTG)" which shows a 10k
pull-up resistor installed for the sample configurations.

Fixes: d7bf353fd0aa3 ("bq24190_charger: Add support for TI BQ24190 Battery Charger")
Signed-off-by: Liam Breck <kernel@networkimprov.net>
Acked-by: Mark Greer <mgreer@animalcreek.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>

diff --git a/drivers/power/supply/bq24190_charger.c b/drivers/power/supply/bq24190_charger.c
index 2f333efa24ab4dd397d9644c30d99e2b1a60c7da..0f959bafed8d97c6f75897331fcf47cc9519dae9 100644 (file)
--- a/drivers/power/supply/bq24190_charger.c
+++ b/drivers/power/supply/bq24190_charger.c
@@ -1394,7 +1394,7 @@ static int bq24190_probe(struct i2c_client *client,
 
        ret = devm_request_threaded_irq(dev, bdi->irq, NULL,
                        bq24190_irq_handler_thread,
-                       IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+                       IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
                        "bq24190-charger", bdi);
        if (ret < 0) {
                dev_err(dev, "Can't set up irq handler\n");