linux-kernel - RE: [PATCH v2] extcon: usbc-tusb320: Set interrupt polarity based on device-tree

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Date:   Mon, 4 Dec 2023 21:09:20 +0900
From:   "Chanwoo Choi" <cw00.choi@...sung.com>
To:     "'Lukas Funke'" <lukas.funke-oss@...dmueller.com>, <lkp@...el.com>,
        "'MyungJoo Ham'" <myungjoo.ham@...sung.com>
Cc:     <Lukas.Funke@...dmueller.com>, <linux-kernel@...r.kernel.org>,
        <oe-kbuild-all@...ts.linux.dev>,
        "'Lukas Funke'" <lukas.funke@...dmueller.com>
Subject: RE: [PATCH v2] extcon: usbc-tusb320: Set interrupt polarity based
 on device-tree



> -----Original Message-----
> From: Lukas Funke <lukas.funke-oss@...dmueller.com>
> Sent: Wednesday, November 22, 2023 5:08 PM
> To: lkp@...el.com; MyungJoo Ham <myungjoo.ham@...sung.com>; Chanwoo Choi
> <cw00.choi@...sung.com>
> Cc: Lukas.Funke@...dmueller.com; linux-kernel@...r.kernel.org;
lukas.funke-
> oss@...dmueller.com; oe-kbuild-all@...ts.linux.dev; Lukas Funke
> <lukas.funke@...dmueller.com>
> Subject: [PATCH v2] extcon: usbc-tusb320: Set interrupt polarity based on
> device-tree
> 
> From: Lukas Funke <Lukas.Funke@...dmueller.com>
> 
> Remove 'IRQF_TRIGGER_FALLING' request which is not allowed on every
> interrupt controller (i.e. arm64 GIC). Replace flag by a request that
> depends on the actual device-tree setting.
> 
> Reported-by: kernel test robot <lkp@...el.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202311221355.yxYpTIw3-
> lkp@...el.com/
> Signed-off-by: Lukas Funke <lukas.funke@...dmueller.com>
> ---
>  drivers/extcon/extcon-usbc-tusb320.c | 13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/extcon/extcon-usbc-tusb320.c b/drivers/extcon/extcon-
> usbc-tusb320.c
> index 4d08c2123e59..140ab28dbd36 100644
> --- a/drivers/extcon/extcon-usbc-tusb320.c
> +++ b/drivers/extcon/extcon-usbc-tusb320.c
> @@ -17,6 +17,7 @@
>  #include <linux/usb/typec.h>
>  #include <linux/usb/typec_altmode.h>
>  #include <linux/usb/role.h>
> +#include <linux/irq.h>
> 
>  #define TUSB320_REG8				0x8
>  #define TUSB320_REG8_CURRENT_MODE_ADVERTISE	GENMASK(7, 6)
> @@ -515,6 +516,8 @@ static int tusb320_probe(struct i2c_client *client)
>  	const void *match_data;
>  	unsigned int revision;
>  	int ret;
> +	int irq_pol;
> +	struct irq_data *irq_d;
> 
>  	priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL);
>  	if (!priv)
> @@ -568,9 +571,17 @@ static int tusb320_probe(struct i2c_client *client)
>  		 */
>  		tusb320_state_update_handler(priv, true);
> 
> +	irq_d = irq_get_irq_data(client->irq);
> +	if (!irq_d) {
> +		dev_err(&client->dev, "Invalid IRQ: %d\n", client->irq);
> +		return -ENODEV;
> +	}
> +
> +	irq_pol = irqd_get_trigger_type(irq_d);
> +
>  	ret = devm_request_threaded_irq(priv->dev, client->irq, NULL,
>  					tusb320_irq_handler,
> -					IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
> +					IRQF_ONESHOT | irq_pol,
>  					client->name, priv);
>  	if (ret)
>  		tusb320_typec_remove(priv);
> --
> 2.30.2


Applied it. Thanks.


Best Regards,
Chanwoo Choi