On Sun, Mar 08, 2015 at 10:13:57PM +0100, Hans de Goede wrote: > On sun4i-a10, when GPIOs are configured as external interrupt the value for > them in the data register does not seem to get updated, so set their mux to > input (and restore afterwards) when reading the pin. > > Missed edges seem to be buffered, so this does not introduce a race > condition. > > I've also tested this on sun5i-a13 and sun7i-a20 and those do not seem to > be affected, the input value representation in the data register does seem > to correctly get updated to the actual pin value while in irq mode there. > > Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx> Acked-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx> Thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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