diff --git a/sound/soc/sirf/sirf-usp.c b/sound/soc/sirf/sirf-usp.c
index 8bab119c753a..2af0c6f14ee6 100644
--- a/sound/soc/sirf/sirf-usp.c
+++ b/sound/soc/sirf/sirf-usp.c
@@ -359,7 +359,6 @@ static int sirf_usp_pcm_probe(struct platform_device *pdev)
 	int ret;
 	struct sirf_usp *usp;
 	void __iomem *base;
-	struct resource *mem_res;
 
 	usp = devm_kzalloc(&pdev->dev, sizeof(struct sirf_usp),
 			GFP_KERNEL);
@@ -368,8 +367,7 @@ static int sirf_usp_pcm_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, usp);
 
-	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(&pdev->dev, mem_res);
+	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base))
 		return PTR_ERR(base);
 	usp->regmap = devm_regmap_init_mmio(&pdev->dev, base,