linux-kernel - Re: [PATCH] watchdog: rti-wdt: Make use of the helper function devm_platform_ioremap

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Message-ID: <20210907124004.GC4989@roeck-us.net>
Date:   Tue, 7 Sep 2021 05:40:04 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Cai Huoqing <caihuoqing@...du.com>
Cc:     Wim Van Sebroeck <wim@...ux-watchdog.org>,
        linux-watchdog@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] watchdog: rti-wdt: Make use of the helper function
 devm_platform_ioremap_resource()

On Tue, Sep 07, 2021 at 03:42:36PM +0800, Cai Huoqing wrote:
> Use the devm_platform_ioremap_resource() helper instead of
> calling platform_get_resource() and devm_ioremap_resource()
> separately
> 
> Signed-off-by: Cai Huoqing <caihuoqing@...du.com>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
>  drivers/watchdog/rti_wdt.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/watchdog/rti_wdt.c b/drivers/watchdog/rti_wdt.c
> index 359302f71f7e..117bc2a8eb0a 100644
> --- a/drivers/watchdog/rti_wdt.c
> +++ b/drivers/watchdog/rti_wdt.c
> @@ -194,7 +194,6 @@ static int rti_wdt_probe(struct platform_device *pdev)
>  {
>  	int ret = 0;
>  	struct device *dev = &pdev->dev;
> -	struct resource *wdt_mem;
>  	struct watchdog_device *wdd;
>  	struct rti_wdt_device *wdt;
>  	struct clk *clk;
> @@ -246,8 +245,7 @@ static int rti_wdt_probe(struct platform_device *pdev)
>  	watchdog_set_nowayout(wdd, 1);
>  	watchdog_set_restart_priority(wdd, 128);
>  
> -	wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -	wdt->base = devm_ioremap_resource(dev, wdt_mem);
> +	wdt->base = devm_platform_ioremap_resource(pdev, 0);
>  	if (IS_ERR(wdt->base)) {
>  		ret = PTR_ERR(wdt->base);
>  		goto err_iomap;
> -- 
> 2.25.1
>