On Fri, Nov 25, 2022 at 12:29:26AM +0200, Andy Shevchenko wrote: > The firmware on some systems may configure GPIO pins to be > an interrupt source in so called "direct IRQ" mode. In such > cases the GPIO controller driver has no idea if those pins > are being used or not. At the same time, there is a known bug > in the firmwares that don't restore the pin settings correctly > after suspend, i.e. by an unknown reason the Rx value becomes > inverted. > > Hence, let's save and restore the pins that are configured > as GPIOs in the input mode with GPIROUTIOXAPIC bit set. > > Cc: stable@xxxxxxxxxxxxxxx > Reported-and-tested-by: Dale Smith <dalepsmith@xxxxxxxxx> > Reported-and-tested-by: John Harris <jmharris@xxxxxxxxx> > BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=214749 > Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Thanks Andy! Acked-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
