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

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Message-ID: <ZsijtURSzEWKCqHk@smile.fi.intel.com>
Date: Fri, 23 Aug 2024 17:59:01 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Ye Zhang <ye.zhang@...k-chips.com>
Cc: linus.walleij@...aro.org, brgl@...ev.pl, heiko@...ech.de,
	linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
	mika.westerberg@...ux.intel.com, tao.huang@...k-chips.com,
	finley.xiao@...k-chips.com, tim.chen@...k-chips.com,
	elaine.zhang@...k-chips.com
Subject: Re: [PATCH v2] gpio: rockchip: Set input direction when request irq

On Fri, Aug 23, 2024 at 11:43:12AM +0800, Ye Zhang wrote:
> Since the GPIO can only generate interrupts when its direction is set to
> input, it is set to input before requesting the interrupt resources.

...

> +	rockchip_gpio_direction_input(&bank->gpio_chip, d->hwirq);
> +
>  	return gpiochip_reqres_irq(&bank->gpio_chip, d->hwirq);

In both cases you want to use irq_hw_number_t and irqd_to_hwirq() at the top of
the function(s).

-- 
With Best Regards,
Andy Shevchenko