cpufreq: qcom-hw: Use cached dev pointer in probe()

There are multiple instances of dev pointer used in the probe() function.
Instead of referencing pdev->dev all the time, let's use a cached dev
pointer to simplify the code.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

drivers/cpufreq/qcom-cpufreq-hw.c

@@ -618,18 +618,19 @@ static struct cpufreq_driver cpufreq_qcom_hw_driver = {
 
 static int qcom_cpufreq_hw_driver_probe(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct device *cpu_dev;
 	struct clk *clk;
 	int ret, i, num_domains;
 
-	clk = clk_get(&pdev->dev, "xo");
+	clk = clk_get(dev, "xo");
 	if (IS_ERR(clk))
 		return PTR_ERR(clk);
 
 	xo_rate = clk_get_rate(clk);
 	clk_put(clk);
 
-	clk = clk_get(&pdev->dev, "alternate");
+	clk = clk_get(dev, "alternate");
 	if (IS_ERR(clk))
 		return PTR_ERR(clk);
 
@@ -648,11 +649,11 @@ static int qcom_cpufreq_hw_driver_probe(struct platform_device *pdev)
 		return ret;
 
 	/* Allocate qcom_cpufreq_data based on the available frequency domains in DT */
-	num_domains = of_property_count_elems_of_size(pdev->dev.of_node, "reg", sizeof(u32) * 4);
+	num_domains = of_property_count_elems_of_size(dev->of_node, "reg", sizeof(u32) * 4);
 	if (num_domains <= 0)
 		return num_domains;
 
-	qcom_cpufreq.data = devm_kzalloc(&pdev->dev, sizeof(struct qcom_cpufreq_data) * num_domains,
+	qcom_cpufreq.data = devm_kzalloc(dev, sizeof(struct qcom_cpufreq_data) * num_domains,
 					 GFP_KERNEL);
 	if (!qcom_cpufreq.data)
 		return -ENOMEM;
@@ -664,7 +665,7 @@ static int qcom_cpufreq_hw_driver_probe(struct platform_device *pdev)
 
 		base = devm_platform_get_and_ioremap_resource(pdev, i, &res);
 		if (IS_ERR(base)) {
-			dev_err(&pdev->dev, "Failed to map resource %pR\n", res);
+			dev_err(dev, "Failed to map resource %pR\n", res);
 			return PTR_ERR(base);
 		}
 
@@ -674,9 +675,9 @@ static int qcom_cpufreq_hw_driver_probe(struct platform_device *pdev)
 
 	ret = cpufreq_register_driver(&cpufreq_qcom_hw_driver);
 	if (ret)
-		dev_err(&pdev->dev, "CPUFreq HW driver failed to register\n");
+		dev_err(dev, "CPUFreq HW driver failed to register\n");
 	else
-		dev_dbg(&pdev->dev, "QCOM CPUFreq HW driver initialized\n");
+		dev_dbg(dev, "QCOM CPUFreq HW driver initialized\n");
 
 	return ret;
 }