gpio: graniterapids: Fix GPIO Ack functionality

Interrupt status (GPI_IS) register is cleared by writing 1 to it, not 0.

Cc: [email protected]
Signed-off-by: Alan Borzeszkowski <[email protected]>
Signed-off-by: Mika Westerberg <[email protected]>
Acked-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bartosz Golaszewski <[email protected]>

Author: aborzesz

drivers/gpio/gpio-graniterapids.c

@@ -185,7 +185,7 @@ static void gnr_gpio_irq_ack(struct irq_data *d)
 	guard(raw_spinlock_irqsave)(&priv->lock);
 
 	reg = readl(addr);
-	reg &= ~BIT(bit_idx);
+	reg |= BIT(bit_idx);
 	writel(reg, addr);
 }