msm: thermal: Reorganize KTM probe function

Reorganize KTM probe function by grouping and separating them
based on functionalities. The deferrable properties and sysfs
node creation are grouped into two separate function
calls.

CRs-Fixed: 1010111
Change-Id: If144319371a5c65f193ffac8fb9852a836125966
Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>

drivers/thermal/msm_thermal.c

@@ -5151,7 +5151,7 @@ static void msm_thermal_panic_notifier_init(struct device *dev)
 		&msm_thermal_panic_notifier);
 }
 
-int msm_thermal_pre_init(struct device *dev)
+static int msm_thermal_pre_init(struct device *dev)
 {
 	int ret = 0;
 
@@ -5298,6 +5298,7 @@ int msm_thermal_init(struct msm_thermal_data *pdata)
 {
 	int ret = 0;
 
+	msm_thermal_ioctl_init();
 	ret = devmgr_devices_init(pdata->pdev);
 	if (ret)
 		pr_err("cannot initialize devm devices. err:%d\n", ret);
@@ -5322,13 +5323,14 @@ int msm_thermal_init(struct msm_thermal_data *pdata)
 	register_reboot_notifier(&msm_thermal_reboot_notifier);
 	pm_notifier(msm_thermal_suspend_callback, 0);
 	INIT_DELAYED_WORK(&retry_hotplug_work, retry_hotplug);
-	INIT_DELAYED_WORK(&check_temp_work, check_temp);
-	schedule_delayed_work(&check_temp_work, 0);
 
 	if (num_possible_cpus() > 1) {
 		cpus_previously_online_update();
 		register_cpu_notifier(&msm_thermal_cpu_notifier);
 	}
+
+	INIT_DELAYED_WORK(&check_temp_work, check_temp);
+	schedule_delayed_work(&check_temp_work, 0);
 	msm_thermal_panic_notifier_init(&pdata->pdev->dev);
 
 	return ret;
@@ -7142,6 +7144,63 @@ static int thermal_config_debugfs_read(struct seq_file *m, void *data)
 	return 0;
 }
 
+static void msm_thermal_late_sysfs_init(void)
+{
+	/*
+	 * In case sysfs add nodes get called before probe function.
+	 * Need to make sure sysfs node is created again
+	 */
+	if (psm_nodes_called) {
+		msm_thermal_add_psm_nodes();
+		psm_nodes_called = false;
+	}
+	if (vdd_rstr_nodes_called) {
+		msm_thermal_add_vdd_rstr_nodes();
+		vdd_rstr_nodes_called = false;
+	}
+	if (sensor_info_nodes_called) {
+		msm_thermal_add_sensor_info_nodes();
+		sensor_info_nodes_called = false;
+	}
+	if (ocr_nodes_called) {
+		msm_thermal_add_ocr_nodes();
+		ocr_nodes_called = false;
+	}
+	if (cluster_info_nodes_called) {
+		create_cpu_topology_sysfs();
+		cluster_info_nodes_called = false;
+	}
+}
+
+static int probe_deferrable_properties(struct device_node *node,
+	struct msm_thermal_data *data, struct platform_device *pdev)
+{
+	int ret = 0;
+
+	/*
+	 * Probe optional properties below. Call probe_psm before
+	 * probe_vdd_rstr because rpm_regulator_get has to be called
+	 * before devm_regulator_get
+	 * probe_ocr should be called after probe_vdd_rstr to reuse the
+	 * regualtor handle. calling devm_regulator_get more than once
+	 * will fail.
+	 */
+	ret = probe_psm(node, data, pdev);
+	if (ret == -EPROBE_DEFER)
+		return ret;
+
+	ret = probe_vdd_rstr(node, data, pdev);
+	if (ret == -EPROBE_DEFER)
+		return ret;
+
+	probe_ocr(node, data, pdev);
+	ret = probe_vdd_mx(node, data, pdev);
+	if (ret == -EPROBE_DEFER)
+		return ret;
+
+	return 0;
+}
+
 static int msm_thermal_dev_probe(struct platform_device *pdev)
 {
 	int ret = 0;
@@ -7191,6 +7250,9 @@ static int msm_thermal_dev_probe(struct platform_device *pdev)
 		online_core = true;
 	else
 		online_core = false;
+	ret = probe_deferrable_properties(node, &data, pdev);
+	if (ret)
+		goto probe_exit;
 
 	probe_sensor_info(node, &data, pdev);
 	ret = probe_cc(node, &data, pdev);
@@ -7199,63 +7261,18 @@ static int msm_thermal_dev_probe(struct platform_device *pdev)
 	ret = probe_cx_phase_ctrl(node, &data, pdev);
 	ret = probe_gfx_phase_ctrl(node, &data, pdev);
 	ret = probe_therm_reset(node, &data, pdev);
-
-	ret = probe_vdd_mx(node, &data, pdev);
-	if (ret == -EPROBE_DEFER)
-		goto fail;
-	/*
-	 * Probe optional properties below. Call probe_psm before
-	 * probe_vdd_rstr because rpm_regulator_get has to be called
-	 * before devm_regulator_get
-	 * probe_ocr should be called after probe_vdd_rstr to reuse the
-	 * regualtor handle. calling devm_regulator_get more than once
-	 * will fail.
-	 */
-	ret = probe_psm(node, &data, pdev);
-	if (ret == -EPROBE_DEFER)
-		goto fail;
-
 	update_cpu_topology(&pdev->dev);
-	ret = probe_vdd_rstr(node, &data, pdev);
-	if (ret == -EPROBE_DEFER)
-		goto fail;
-	ret = probe_ocr(node, &data, pdev);
-
 	ret = fetch_cpu_mitigaiton_info(&data, pdev);
 	if (ret) {
 		pr_err("Error fetching CPU mitigation information. err:%d\n",
 				ret);
 		goto probe_exit;
 	}
-
-	/*
-	 * In case sysfs add nodes get called before probe function.
-	 * Need to make sure sysfs node is created again
-	 */
-	if (psm_nodes_called) {
-		msm_thermal_add_psm_nodes();
-		psm_nodes_called = false;
-	}
-	if (vdd_rstr_nodes_called) {
-		msm_thermal_add_vdd_rstr_nodes();
-		vdd_rstr_nodes_called = false;
-	}
-	if (sensor_info_nodes_called) {
-		msm_thermal_add_sensor_info_nodes();
-		sensor_info_nodes_called = false;
-	}
-	if (ocr_nodes_called) {
-		msm_thermal_add_ocr_nodes();
-		ocr_nodes_called = false;
-	}
-	if (cluster_info_nodes_called) {
-		create_cpu_topology_sysfs();
-		cluster_info_nodes_called = false;
-	}
-	msm_thermal_ioctl_init();
+	msm_thermal_late_sysfs_init();
 	ret = msm_thermal_init(&data);
+	if (ret)
+		goto probe_exit;
 	msm_thermal_probed = true;
-
 	if (interrupt_mode_enable) {
 		interrupt_mode_init();
 		interrupt_mode_enable = false;