Re: [PATCH] drm: bridge: Use devm_platform_get_and_ioremap_resource()

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On Thu, Jan 19, 2023 at 03:59:01PM +0800, ye.xingchen@xxxxxxxxxx wrote:
> From: ye xingchen <ye.xingchen@xxxxxxxxxx>
> 
> Convert platform_get_resource(), devm_ioremap_resource() to a single
> call to devm_platform_get_and_ioremap_resource(), as this is exactly
> what this function does.
> 
> Signed-off-by: ye xingchen <ye.xingchen@xxxxxxxxxx>
> ---
>  drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> index df9370e0ff23..50f092b316d0 100644
> --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
> @@ -1686,7 +1686,6 @@ analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data *plat_data)
>  {
>  	struct platform_device *pdev = to_platform_device(dev);
>  	struct analogix_dp_device *dp;
> -	struct resource *res;
>  	unsigned int irq_flags;
>  	int ret;
> 
> @@ -1740,9 +1739,7 @@ analogix_dp_probe(struct device *dev, struct analogix_dp_plat_data *plat_data)
> 
>  	clk_prepare_enable(dp->clock);
> 
> -	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> -
> -	dp->reg_base = devm_ioremap_resource(&pdev->dev, res);
> +	dp->reg_base = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);

Rather than a NULL 3rd argument, couldn't you just use
devm_platform_ioremap_resource()? With that:

Reviewed-by: Brian Norris <briannorris@xxxxxxxxxxxx>


>  	if (IS_ERR(dp->reg_base)) {
>  		ret = PTR_ERR(dp->reg_base);
>  		goto err_disable_clk;
> -- 
> 2.25.1



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