[PATCH 4.19 42/81] gpio: eic: sprd: Fix the incorrect EIC offset when toggling

[Greg Kroah-Hartman]

From: Bruce Chen <bruce.chen@xxxxxxxxxx>

commit e91aafcb51f3c5001ae76c3ee027beb0b8506447 upstream.

When toggling the level trigger to emulate the edge trigger, the
EIC offset is incorrect without adding the corresponding bank index,
thus fix it.

Fixes: 7bf0d7f62282 ("gpio: eic: Add edge trigger emulation for EIC")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Bruce Chen <bruce.chen@xxxxxxxxxx>
Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxx>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/gpio/gpio-eic-sprd.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

--- a/drivers/gpio/gpio-eic-sprd.c
+++ b/drivers/gpio/gpio-eic-sprd.c
@@ -529,11 +529,12 @@ static void sprd_eic_handle_one_type(str
 		}
 
 		for_each_set_bit(n, &reg, SPRD_EIC_PER_BANK_NR) {
-			girq = irq_find_mapping(chip->irq.domain,
-					bank * SPRD_EIC_PER_BANK_NR + n);
+			u32 offset = bank * SPRD_EIC_PER_BANK_NR + n;
+
+			girq = irq_find_mapping(chip->irq.domain, offset);
 
 			generic_handle_irq(girq);
-			sprd_eic_toggle_trigger(chip, girq, n);
+			sprd_eic_toggle_trigger(chip, girq, offset);
 		}
 	}
 }