diff options
| author | Alban Bedel <alban.bedel@avionic-design.de> | 2012-11-08 08:57:55 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-11-29 09:29:05 -0800 |
| commit | bf7f5316cbacbcb7d3c337eba36322cab255dec0 (patch) | |
| tree | 31d9712bc4ff87463c7e6dd213f3892241336dee /drivers/input/keyboard/tca8418_keypad.c | |
| parent | e89e29b8585379c844b03fb3aa2cca73e2bc5b26 (diff) | |
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>
Diffstat (limited to 'drivers/input/keyboard/tca8418_keypad.c')
| -rw-r--r-- | drivers/input/keyboard/tca8418_keypad.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/input/keyboard/tca8418_keypad.c b/drivers/input/keyboard/tca8418_keypad.c index 1a2894dd03c..ac4ff13f51c 100644 --- a/drivers/input/keyboard/tca8418_keypad.c +++ b/drivers/input/keyboard/tca8418_keypad.c @@ -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, |