On 09/22/2014 07:56 AM, Dmitry Torokhov wrote:
> On Sun, Sep 21, 2014 at 12:06:30PM +0200, Daniel Mack wrote:
>> On 09/21/2014 05:01 AM, Matt Ranostay wrote:
>>> Some applications need to use the active-high push-pull interrupt
>>> option. This allows it be enabled in the device tree child node.
>>>
>>> Signed-off-by: Matt Ranostay <mranos...@gmail.com>
>>> ---
>>> drivers/input/keyboard/cap1106.c | 6 ++++++
>>> 1 file changed, 6 insertions(+)
>>>
>>> diff --git a/drivers/input/keyboard/cap1106.c
>>> b/drivers/input/keyboard/cap1106.c
>>> index b9c43b5..33e2590 100644
>>> --- a/drivers/input/keyboard/cap1106.c
>>> +++ b/drivers/input/keyboard/cap1106.c
>>> @@ -234,6 +234,12 @@ static int cap1106_i2c_probe(struct i2c_client
>>> *i2c_client,
>>> dev_err(dev, "Invalid sensor-gain value %d\n", gain32);
>>> }
>>>
>>> + if (of_property_read_bool(node, "microchip,active-high")) {
>>
>> I think the name of that property should make clear it's only changing
>> the interrupt output driver configuration. What about
>> "microchip,irq-active-high"?
>
> Can we infer the setting from IRQ flags by chance?
Hmm, I thought of that as well, but there could be electrical wiring
setups that want the CPU's hardware pin in push/pull mode but the one on
the sensor chip in open-drain. I'd rather not make the assuption the
pins are directly connected and have both sides individually configurable.
Thanks,
Daniel
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