Requesting different interrupt triggers for the same device type

[Alexander Stein <alexander.stein@xxxxxxxxxxxxxxxxxxxxx>]

Hi,

I have a board which has two PCA9555 attached. Due to hardware wirings each has a different interrupt trigger. One is active low and one is active high and each has a different interrupt parent.
How can I specify this in the device tree? Do I need to set IRQ_TYPE_LEVEL_LOW and IRQ_TYPE_LEVEL_HIGH approriately? How can this work, when the driver requests the interrupt like this?
> ret = devm_request_threaded_irq(&client->dev,
> 			client->irq,
> 			NULL,
> 			pca953x_irq_handler,
> 			IRQF_TRIGGER_LOW | IRQF_ONESHOT |
> 			IRQF_SHARED,
> 			dev_name(&client->dev), chip);

The interrupt flags seem rather fixed. Any comments/hints?

Best regards,
Alexander
-- 
Dipl.-Inf. Alexander Stein

SYS TEC electronic GmbH
Am Windrad 2
08468 Heinsdorfergrund
Tel.: 03765 38600-1156
Fax: 03765 38600-4100
Email: alexander.stein@xxxxxxxxxxxxxxxxxxxxx
Website: www.systec-electronic.com
 
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Commercial registry: Amtsgericht Chemnitz, HRB 28082
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