From: Gregory CLEMENT <gregory.clement@xxxxxxxxxxx>
commit 04fb02757ae5188031eb71b2f6f189edb1caf5dc upstream.
As explained in the following commit a9a1a4833613 ("pinctrl:
armada-37xx: Fix gpio interrupt setup") the armada_37xx_irq_set_type()
function can be called before the initialization of the mask field.
That means that we can't use this field in this function and need to
workaround it using hwirq.
Fixes: 30ac0d3b0702 ("pinctrl: armada-37xx: Add edge both type gpio irq support")
Cc: stable@xxxxxxxxxxxxxxx
Reported-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20191115155752.2562-1-gregory.clement@xxxxxxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -595,10 +595,10 @@ static int armada_37xx_irq_set_type(stru
regmap_read(info->regmap, in_reg, &in_val);
/* Set initial polarity based on current input level. */
- if (in_val & d->mask)
- val |= d->mask; /* falling */
+ if (in_val & BIT(d->hwirq % GPIO_PER_REG))
+ val |= BIT(d->hwirq % GPIO_PER_REG); /* falling */
else
- val &= ~d->mask; /* rising */
+ val &= ~(BIT(d->hwirq % GPIO_PER_REG)); /* rising */
break;
}
default:
