linux-kernel - Re: [PATCH] pinctrl: ocelot: fix confops resource index

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Date:   Wed, 16 Feb 2022 07:37:14 -0800
From:   Colin Foster <colin.foster@...advantage.com>
To:     Michael Walle <michael@...le.cc>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] pinctrl: ocelot: fix confops resource index

Hi Michael,

On Wed, Feb 16, 2022 at 09:20:20AM +0100, Michael Walle wrote:
> Prior to commit ad96111e658a ("pinctrl: ocelot: combine get resource and
> ioremap into single call") the resource index was 1, now it is 0. But 0
> is the base region for the pinctrl block. Fix it.
> I noticed this because there was an error that the memory region was
> ioremapped twice.

My apologies... I missed this and didn't have access to hardware to
test. Thanks for the fix.

Reviewed-by: Colin Foster <colin.foster@...advantage.com>


> 
> Fixes: ad96111e658a ("pinctrl: ocelot: combine get resource and ioremap into single call")
> Signed-off-by: Michael Walle <michael@...le.cc>
> ---
>  drivers/pinctrl/pinctrl-ocelot.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c
> index 685c79e08d40..a859fbcb09af 100644
> --- a/drivers/pinctrl/pinctrl-ocelot.c
> +++ b/drivers/pinctrl/pinctrl-ocelot.c
> @@ -1892,7 +1892,7 @@ static struct regmap *ocelot_pinctrl_create_pincfg(struct platform_device *pdev)
>  		.max_register = 32,
>  	};
>  
> -	base = devm_platform_ioremap_resource(pdev, 0);
> +	base = devm_platform_ioremap_resource(pdev, 1);
>  	if (IS_ERR(base)) {
>  		dev_dbg(&pdev->dev, "Failed to ioremap config registers (no extended pinconf)\n");
>  		return NULL;
> -- 
> 2.30.2
>