linux-kernel - [PATCH v2] gpio: rockchip: Set input direction when request irq

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Message-Id: <20240823034314.62305-10-ye.zhang@rock-chips.com>
Date: Fri, 23 Aug 2024 11:43:12 +0800
From: Ye Zhang <ye.zhang@...k-chips.com>
To: linus.walleij@...aro.org,
	brgl@...ev.pl,
	heiko@...ech.de,
	linux-gpio@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc: linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	mika.westerberg@...ux.intel.com,
	andriy.shevchenko@...ux.intel.com,
	tao.huang@...k-chips.com,
	finley.xiao@...k-chips.com,
	tim.chen@...k-chips.com,
	elaine.zhang@...k-chips.com,
	Ye Zhang <ye.zhang@...k-chips.com>
Subject: [PATCH v2] gpio: rockchip: Set input direction when request irq

Since the GPIO can only generate interrupts when its direction is set to
input, it is set to input before requesting the interrupt resources.

Signed-off-by: Ye Zhang <ye.zhang@...k-chips.com>
---
 drivers/gpio/gpio-rockchip.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
index 5289c94d5c60..4f8d50626fcc 100644
--- a/drivers/gpio/gpio-rockchip.c
+++ b/drivers/gpio/gpio-rockchip.c
@@ -469,6 +469,8 @@ static int rockchip_irq_reqres(struct irq_data *d)
 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
 	struct rockchip_pin_bank *bank = gc->private;
 
+	rockchip_gpio_direction_input(&bank->gpio_chip, d->hwirq);
+
 	return gpiochip_reqres_irq(&bank->gpio_chip, d->hwirq);
 }
 
-- 
2.34.1