hello everybody:
i want to take gpio1 in dm6446 as inpterrupt source, now i have
configure the gpio register.but i have some questions
first, in my driver i take a test.read the gpio interrupt status
register all the time, but when i press the button,it has make a interrupt
input,i have validated it by the Oscilloscope.but the status is 0 not
changed, i do not know the reason.
second. i have write my interrupt rountie,if i registe the isr by
request_irq successfully,if there is a interrupt input,my isr can be called
automaticlly
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