[PATCH v5 0/2] gpio: mxc: Locking and direction input fix

[Marek Vasut <marex@xxxxxxx>]

The irqchip callbacks in gpio-mxc perform register read-modify-write operations
without locking, which may lead to a race condition. Add the missing locking.

In case the GPIO is used as IRQ, make sure it is configured as input.

Marek Vasut (2):
  gpio: mxc: Protect GPIO irqchip RMW with bgpio spinlock
  gpio: mxc: Always set GPIOs used as interrupt source to INPUT mode

 drivers/gpio/gpio-mxc.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

Cc: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Loic Poulain <loic.poulain@xxxxxxxxxx>
Cc: Marc Zyngier <maz@xxxxxxxxxx>
Cc: NXP Linux Team <linux-imx@xxxxxxx>
Cc: Peng Fan <peng.fan@xxxxxxx>
Cc: Shawn Guo <shawnguo@xxxxxxxxxx>

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2.35.1