linux-kernel - [PATCH 2/2] gpio/rockchip: Toggle edge trigger mode after acking

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Message-Id: <20220820095933.20234-2-jeffy.chen@rock-chips.com>
Date:   Sat, 20 Aug 2022 17:59:33 +0800
From:   Jeffy Chen <jeffy.chen@...k-chips.com>
To:     Heiko Stuebner <heiko@...ech.de>,
        Doug Anderson <dianders@...omium.org>
Cc:     Jeffy Chen <jeffy.chen@...k-chips.com>,
        linux-rockchip@...ts.infradead.org,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 2/2] gpio/rockchip: Toggle edge trigger mode after acking

Otherwise the trigger mode might be out-of-sync when a level change
occurred in between.

Fixes: 53b1bfc76df2 ("pinctrl: rockchip: Avoid losing interrupts when supporting both edges")
Signed-off-by: Jeffy Chen <jeffy.chen@...k-chips.com>
---

 drivers/gpio/gpio-rockchip.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
index a98351cd6821..736b4d90f1ca 100644
--- a/drivers/gpio/gpio-rockchip.c
+++ b/drivers/gpio/gpio-rockchip.c
@@ -338,7 +338,7 @@ static void rockchip_irq_demux(struct irq_desc *desc)
 		irq = __ffs(pend);
 		pend &= ~BIT(irq);
 
-		dev_dbg(bank->dev, "handling irq %d\n", irq);
+		generic_handle_domain_irq(bank->domain, irq);
 
 		/*
 		 * Triggering IRQ on both rising and falling edge
@@ -370,8 +370,6 @@ static void rockchip_irq_demux(struct irq_desc *desc)
 						     bank->gpio_regs->ext_port);
 			} while ((data & BIT(irq)) != (data_old & BIT(irq)));
 		}
-
-		generic_handle_domain_irq(bank->domain, irq);
 	}
 
 	chained_irq_exit(chip, desc);
-- 
2.20.1