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authorLoic Poulain <loic.poulain@linaro.org>2021-06-17 15:54:13 +0200
committerBartosz Golaszewski <bgolaszewski@baylibre.com>2021-06-21 20:43:52 +0200
commit3093e6cca3ba7d47848068cb256c489675125181 (patch)
tree76031bc3b8b0175995a07de459862d8a04344f98 /drivers
parentdbec64b11c65d74f31427e2b9d5746fbf17bf840 (diff)
gpio: mxc: Fix disabled interrupt wake-up support
A disabled/masked interrupt marked as wakeup source must be re-enable and unmasked in order to be able to wake-up the host. That can be done by flaging the irqchip with IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND. Note: It 'sometimes' works without that change, but only thanks to the lazy generic interrupt disabling (keeping interrupt unmasked). Reported-by: Michal Koziel <michal.koziel@emlogic.no> Signed-off-by: Loic Poulain <loic.poulain@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpio/gpio-mxc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 157106e1e438..b9fdf05d7669 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -334,7 +334,7 @@ static int mxc_gpio_init_gc(struct mxc_gpio_port *port, int irq_base)
ct->chip.irq_unmask = irq_gc_mask_set_bit;
ct->chip.irq_set_type = gpio_set_irq_type;
ct->chip.irq_set_wake = gpio_set_wake_irq;
- ct->chip.flags = IRQCHIP_MASK_ON_SUSPEND;
+ ct->chip.flags = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND;
ct->regs.ack = GPIO_ISR;
ct->regs.mask = GPIO_IMR;