linux-kernel - Re: [PATCH 2/3] GPIO: TEGRA: move to use platform_devm_request_and

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Message-ID: <20120131203703.GI22611@ponder.secretlab.ca>
Date:	Tue, 31 Jan 2012 13:37:03 -0700
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Barry Song <Barry.Song@....com>
Cc:	Greg Kroah-Hartman <gregkh@...e.de>, linux-kernel@...r.kernel.org,
	workgroup.linux@....com, linux-mtd@...ts.infradead.org,
	Barry Song <Baohua.Song@....com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Erik Gilling <konkers@...gle.com>
Subject: Re: [PATCH 2/3] GPIO: TEGRA: move to use
 platform_devm_request_and_ioremap() helper

On Tue, Jan 31, 2012 at 06:00:01PM +0800, Barry Song wrote:
> From: Barry Song <Baohua.Song@....com>
> 
> Signed-off-by: Barry Song <Baohua.Song@....com>
> Cc: Grant Likely <grant.likely@...retlab.ca>
> Cc: Linus Walleij <linus.walleij@...aro.org>
> Cc: Erik Gilling <konkers@...gle.com>

Acked-by: Grant Likely <grant.likely@...retlab.ca>

This of course depends on the other patch, so I won't merge it until
there is an okay from gregkh.  Also, with his okay I'd be happy to
take it through the gpio tree to reduce dependencies.

g.


> ---
>  drivers/gpio/gpio-tegra.c |    8 +-------
>  1 files changed, 1 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
> index bdc2937..118e367 100644
> --- a/drivers/gpio/gpio-tegra.c
> +++ b/drivers/gpio/gpio-tegra.c
> @@ -355,13 +355,7 @@ static int __devinit tegra_gpio_probe(struct platform_device *pdev)
>  		bank->irq = res->start;
>  	}
>  
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	if (!res) {
> -		dev_err(&pdev->dev, "Missing MEM resource\n");
> -		return -ENODEV;
> -	}
> -
> -	regs = devm_request_and_ioremap(&pdev->dev, res);
> +	regs = platform_devm_request_and_ioremap(pdev, 0);
>  	if (!regs) {
>  		dev_err(&pdev->dev, "Couldn't ioremap regs\n");
>  		return -ENODEV;
> -- 
> 1.7.1
> 
> 
> 
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