Re: [PATCH] watchdog: iTCO_wdt: Make use of the helper function devm_platform_ioremap_resource()

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On Tue, Sep 07, 2021 at 03:42:29PM +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@xxxxxxxxx>

Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>

> ---
>  drivers/watchdog/iTCO_wdt.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
> index 643c6c2d0b72..ebf7e5bc1199 100644
> --- a/drivers/watchdog/iTCO_wdt.c
> +++ b/drivers/watchdog/iTCO_wdt.c
> @@ -96,7 +96,6 @@ struct iTCO_wdt_private {
>  	 * NO_REBOOT flag is Memory-Mapped GCS register bit 5 (TCO version 2),
>  	 * or memory-mapped PMC register bit 4 (TCO version 3).
>  	 */
> -	struct resource *gcs_pmc_res;
>  	unsigned long __iomem *gcs_pmc;
>  	/* the lock for io operations */
>  	spinlock_t io_lock;
> @@ -503,10 +502,7 @@ static int iTCO_wdt_probe(struct platform_device *pdev)
>  	 */
>  	if (p->iTCO_version >= 2 && p->iTCO_version < 6 &&
>  	    !pdata->no_reboot_use_pmc) {
> -		p->gcs_pmc_res = platform_get_resource(pdev,
> -						       IORESOURCE_MEM,
> -						       ICH_RES_MEM_GCS_PMC);
> -		p->gcs_pmc = devm_ioremap_resource(dev, p->gcs_pmc_res);
> +		p->gcs_pmc = devm_platform_ioremap_resource(pdev, ICH_RES_MEM_GCS_PMC);
>  		if (IS_ERR(p->gcs_pmc))
>  			return PTR_ERR(p->gcs_pmc);
>  	}
> -- 
> 2.25.1
> 



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