phy: qcom-qmp: Use devm_platform_ioremap_resource() to simplify

We can use the wrapper API here to save some lines and remove the need
for the 'base' and 'res' local variable.
Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Cc: Jeykumar Sankaran <jsanka@codeaurora.org>
Cc: Chandan Uddaraju <chandanu@codeaurora.org>
Cc: Vara Reddy <varar@codeaurora.org>
Cc: Tanmay Shah <tanmay@codeaurora.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Manu Gautam <mgautam@codeaurora.org>
Cc: Sandeep Maheswaram <sanm@codeaurora.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Jonathan Marek <jonathan@marek.ca>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20200916231202.3637932-7-swboyd@chromium.orgSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/phy/qualcomm/phy-qcom-qmp.c

@@ -3237,10 +3237,8 @@ static int qcom_qmp_phy_probe(struct platform_device *pdev)
 {
 	struct qcom_qmp *qmp;
 	struct device *dev = &pdev->dev;
-	struct resource *res;
 	struct device_node *child;
 	struct phy_provider *phy_provider;
-	void __iomem *base;
 	void __iomem *serdes;
 	const struct qmp_phy_cfg *cfg;
 	int num, id;
@@ -3258,13 +3256,10 @@ static int qcom_qmp_phy_probe(struct platform_device *pdev)
 	if (!cfg)
 		return -EINVAL;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(dev, res);
-	if (IS_ERR(base))
-		return PTR_ERR(base);
-
 	/* per PHY serdes; usually located at base address */
-	serdes = base;
+	serdes = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(serdes))
+		return PTR_ERR(serdes);
 
 	/* per PHY dp_com; if PHY has dp_com control block */
 	if (cfg->has_phy_dp_com_ctrl) {