pinctrl: at91-pio4: fix pull-up/down logic
commit 5305a7b7 upstream. The default configuration of a pin is often with a value in the pull-up/down field at chip reset. So, even if the internal logic of the controller prevents writing a configuration with pull-up and pull-down at the same time, we must ensure explicitly this condition before writing the register. This was leading to a pull-down condition not taken into account for instance. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Fixes: 77618084 ("pinctrl: introduce driver for Atmel PIO4 controller") Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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