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Subject[PATCH 5/7] gpio: brcmstb: enable masking of interrupts when changing type
Date
Mask the GPIO interrupt while its type is being changed, just in case
it can prevent a spurious interrupt.

Signed-off-by: Doug Berger <opendmb@gmail.com>
---
drivers/gpio/gpio-brcmstb.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-brcmstb.c b/drivers/gpio/gpio-brcmstb.c
index 0418cb266586..e2fff559c1ca 100644
--- a/drivers/gpio/gpio-brcmstb.c
+++ b/drivers/gpio/gpio-brcmstb.c
@@ -363,7 +363,9 @@ static int brcmstb_gpio_irq_setup(struct platform_device *pdev,
bank->irq_chip.irq_set_type = brcmstb_gpio_irq_set_type;

/* Ensures that all non-wakeup IRQs are disabled at suspend */
- bank->irq_chip.flags = IRQCHIP_MASK_ON_SUSPEND;
+ /* and that interrupts are masked when changing their type */
+ bank->irq_chip.flags = IRQCHIP_MASK_ON_SUSPEND |
+ IRQCHIP_SET_TYPE_MASKED;

if (IS_ENABLED(CONFIG_PM_SLEEP) && !priv->parent_wake_irq &&
of_property_read_bool(np, "wakeup-source")) {
--
2.14.1
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