linux-kernel - Re: [PATCH] pinctrl: amd: Fix an issue with shutdown when system set to s0ix

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Date:   Thu, 12 Aug 2021 07:55:16 +0530
From:   Shyam Sundar S K <Shyam-sundar.S-k@....com>
To:     Mario Limonciello <mario.limonciello@....com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Raul E Rangel <rrangel@...omium.org>
Cc:     "open list:PIN CONTROL SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Nehal Shah <Nehal-bakulchandra.Shah@....com>,
        nix.or.die@...glemail.com
Subject: Re: [PATCH] pinctrl: amd: Fix an issue with shutdown when system set
 to s0ix



On 8/10/2021 1:45 AM, Mario Limonciello wrote:
> IRQs are getting armed on shutdown causing the system to immediately
> wake back up.
> 
> Link: https://lkml.org/lkml/2021/8/2/1114
> Reported-by: nix.or.die@...glemail.com
> CC: Raul E Rangel <rrangel@...omium.org>
> Fixes: d62bd5ce12d7 ("pinctrl: amd: Implement irq_set_wake")
> Signed-off-by: Mario Limonciello <mario.limonciello@....com>
> ---
>  drivers/pinctrl/pinctrl-amd.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
> index a76be6cc26ee..5b764740b829 100644
> --- a/drivers/pinctrl/pinctrl-amd.c
> +++ b/drivers/pinctrl/pinctrl-amd.c
> @@ -444,8 +444,7 @@ static int amd_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
>  	unsigned long flags;
>  	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
>  	struct amd_gpio *gpio_dev = gpiochip_get_data(gc);
> -	u32 wake_mask = BIT(WAKE_CNTRL_OFF_S0I3) | BIT(WAKE_CNTRL_OFF_S3) |
> -			BIT(WAKE_CNTRL_OFF_S4);
> +	u32 wake_mask = BIT(WAKE_CNTRL_OFF_S0I3) | BIT(WAKE_CNTRL_OFF_S3);
>  
>  	raw_spin_lock_irqsave(&gpio_dev->lock, flags);
>  	pin_reg = readl(gpio_dev->base + (d->hwirq)*4);
> 

Looks good to me.

Acked-by: Shyam Sundar S K <Shyam-sundar.S-k@....com>