[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/regulator/dummy.c b/src/kernel/linux/v4.14/drivers/regulator/dummy.c
new file mode 100644
index 0000000..cde7497
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/regulator/dummy.c
@@ -0,0 +1,93 @@
+/*
+ * dummy.c
+ *
+ * Copyright 2010 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This is useful for systems with mixed controllable and
+ * non-controllable regulators, as well as for allowing testing on
+ * systems with no controllable regulators.
+ */
+
+#include <linux/err.h>
+#include <linux/export.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+
+#include "dummy.h"
+
+struct regulator_dev *dummy_regulator_rdev;
+
+static struct regulator_init_data dummy_initdata = {
+ .constraints = {
+ .always_on = 1,
+ },
+};
+
+static struct regulator_ops dummy_ops;
+
+static const struct regulator_desc dummy_desc = {
+ .name = "regulator-dummy",
+ .id = -1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .ops = &dummy_ops,
+};
+
+static int dummy_regulator_probe(struct platform_device *pdev)
+{
+ struct regulator_config config = { };
+ int ret;
+
+ config.dev = &pdev->dev;
+ config.init_data = &dummy_initdata;
+
+ dummy_regulator_rdev = regulator_register(&dummy_desc, &config);
+ if (IS_ERR(dummy_regulator_rdev)) {
+ ret = PTR_ERR(dummy_regulator_rdev);
+ pr_err("Failed to register regulator: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static struct platform_driver dummy_regulator_driver = {
+ .probe = dummy_regulator_probe,
+ .driver = {
+ .name = "reg-dummy",
+ },
+};
+
+static struct platform_device *dummy_pdev;
+
+void __init regulator_dummy_init(void)
+{
+ int ret;
+
+ dummy_pdev = platform_device_alloc("reg-dummy", -1);
+ if (!dummy_pdev) {
+ pr_err("Failed to allocate dummy regulator device\n");
+ return;
+ }
+
+ ret = platform_device_add(dummy_pdev);
+ if (ret != 0) {
+ pr_err("Failed to register dummy regulator device: %d\n", ret);
+ platform_device_put(dummy_pdev);
+ return;
+ }
+
+ ret = platform_driver_register(&dummy_regulator_driver);
+ if (ret != 0) {
+ pr_err("Failed to register dummy regulator driver: %d\n", ret);
+ platform_device_unregister(dummy_pdev);
+ }
+}