[PATCH 03/14] pinctrl: ocelot: Fix GPIO interrupt decoding on Jaguar2

[Lars Povlsen]

This fixes a problem with using the GPIO as an interrupt on Jaguar2
(and similar), as the register layout of the platforms with 64 GPIO's
are pairwise, such that the original offset must be multiplied with
the platform stride.

Fixes: da801ab56ad8 pinctrl: ocelot: add MSCC Jaguar2 support.
Reviewed-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
Signed-off-by: Lars Povlsen <lars.povlsen@xxxxxxxxxxxxx>
---
 drivers/pinctrl/pinctrl-ocelot.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c
index 375f3ea3b80c4..95c225bc7572f 100644
--- a/drivers/pinctrl/pinctrl-ocelot.c
+++ b/drivers/pinctrl/pinctrl-ocelot.c
@@ -680,11 +680,12 @@ static void ocelot_irq_handler(struct irq_desc *desc)
 	struct irq_chip *parent_chip = irq_desc_get_chip(desc);
 	struct gpio_chip *chip = irq_desc_get_handler_data(desc);
 	struct ocelot_pinctrl *info = gpiochip_get_data(chip);
+	unsigned int id_reg = OCELOT_GPIO_INTR_IDENT * info->stride;
 	unsigned int reg = 0, irq, i;
 	unsigned long irqs;
 
 	for (i = 0; i < info->stride; i++) {
-		regmap_read(info->map, OCELOT_GPIO_INTR_IDENT + 4 * i, &reg);
+		regmap_read(info->map, id_reg + 4 * i, &reg);
 		if (!reg)
 			continue;
 
-- 
2.26.2