AM3352: gpio interrupt issue

Daniel Cheng1

Part Number: AM3352

Hi Expert,

kernel version is 4.19.38

My customer ref the sample driver "uartlite.c" to set gpio as interrupt

ISR can catch the interrupt.

but gpio will trigger the interrupt again before ISR is finish.

So the ISR cannot do the job as expected.

Could you give me some suggestions?

Thanks

Daniel

0 Bin Liu over 3 years ago

Hi Daniel,

Please attach the kernel patch your customer added for gpio interrupt.

0 Daniel Cheng1 over 3 years ago in reply to Bin Liu

Hi Bin

About gpio interrupt, customer totally refer to the uartlite.c's code, just modify IRQF_TRIGGER_RISING to IRQF_TRIGGER_FALLING

where the port->irq was also gotten from probe function

all of irq register are completed in the device tree, such as following

Thanks

Daniel

0 Daniel Cheng1 over 3 years ago in reply to Daniel Cheng1

Hi Bin

Do you have any idea?

Thanks

Daniel

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