linux-kernel - [PATCH] gpio: eic: sprd: Fix the incorrect EIC offset when toggling

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Date:   Mon, 16 Sep 2019 17:56:56 +0800
From:   Baolin Wang <baolin.wang@...aro.org>
To:     linus.walleij@...aro.org, bgolaszewski@...libre.com
Cc:     orsonzhai@...il.com, zhang.lyra@...il.com, baolin.wang@...aro.org,
        bruce.chen@...soc.com, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] gpio: eic: sprd: Fix the incorrect EIC offset when toggling

From: Bruce Chen <bruce.chen@...soc.com>

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")
Signed-off-by: Bruce Chen <bruce.chen@...soc.com>
Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
---
 drivers/gpio/gpio-eic-sprd.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-eic-sprd.c b/drivers/gpio/gpio-eic-sprd.c
index 7b9ac4a..090539f 100644
--- a/drivers/gpio/gpio-eic-sprd.c
+++ b/drivers/gpio/gpio-eic-sprd.c
@@ -530,11 +530,12 @@ static void sprd_eic_handle_one_type(struct gpio_chip *chip)
 		}
 
 		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);
 		}
 	}
 }
-- 
1.7.9.5