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Input: tca8418_keypad - add support for shared interrupt 

Signed-off-by: Alban Bedel <alban.bedel@avionic-design.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Alban Bedel 2012-11-08 08:57:55 -08:00 committed by Dmitry Torokhov
parent e89e29b858
commit bf7f5316cb
1 changed files with 7 additions and 3 deletions
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10
drivers/input/keyboard/tca8418_keypad.c
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@ -224,16 +224,18 @@ static irqreturn_t tca8418_irq_handler(int irq, void *dev_id)
if (error) {
dev_err(&keypad_data->client->dev,
"unable to read REG_INT_STAT\n");
goto exit;
return IRQ_NONE;
}
if (!reg)
return IRQ_NONE;
if (reg & INT_STAT_OVR_FLOW_INT)
dev_warn(&keypad_data->client->dev, "overflow occurred\n");
if (reg & INT_STAT_K_INT)
tca8418_read_keypad(keypad_data);
exit:
/* Clear all interrupts, even IRQs we didn't check (GPI, CAD, LCK) */
reg = 0xff;
error = tca8418_write_byte(keypad_data, REG_INT_STAT, reg);
@ -374,7 +376,9 @@ static int tca8418_keypad_probe(struct i2c_client *client,
client->irq = gpio_to_irq(client->irq);
error = request_threaded_irq(client->irq, NULL, tca8418_irq_handler,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
IRQF_TRIGGER_FALLING |
IRQF_SHARED |
IRQF_ONESHOT,
client->name, keypad_data);
if (error) {
dev_dbg(&client->dev,