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authorChristian Lamparter <chunkeey@gmail.com>2019-06-15 19:13:30 +0200
committerChristian Lamparter <chunkeey@gmail.com>2019-06-24 20:30:09 +0200
commitdbe5730bf956903f64975a3baf746c93d4f36e10 (patch)
treeb607368ac34060eba5212fcaba18811ae5af22c3 /target/linux/layerscape
parent43b8e5b1208c9808d8df512966fab9fd9b1c95c3 (diff)
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apm821xx: fix bogus key-presses on boot
"There are often transient line events when the system is powered up and initialized and it is often necessary for the gpio_chip driver to clear any interrupt flags in hardware before setting up the gpio chip, especially the irqchip portions of it." <http://lists.infradead.org/pipermail/openwrt-devel/2019-June/017630.html> This patch adds a fix for the APM821XX's interrupt controller to clear any bogus pending toggled interrupts that happens on various APM821XX boards on boot. The patch also changes the debouce-interval from the default 5ms debounce interval to 60ms all around. The default setting caused on occasions that the button state became stuck in a pressed state, even though the button was released. Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
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