[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/mfd/ucb1x00-assabet.c b/src/kernel/linux/v4.14/drivers/mfd/ucb1x00-assabet.c
new file mode 100644
index 0000000..b63c075
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/mfd/ucb1x00-assabet.c
@@ -0,0 +1,106 @@
+/*
+ * linux/drivers/mfd/ucb1x00-assabet.c
+ *
+ * Copyright (C) 2001-2003 Russell King, All Rights Reserved.
+ *
+ * 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.
+ *
+ * We handle the machine-specific bits of the UCB1x00 driver here.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/fs.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/proc_fs.h>
+#include <linux/mfd/ucb1x00.h>
+
+#define UCB1X00_ATTR(name,input)\
+static ssize_t name##_show(struct device *dev, struct device_attribute *attr, \
+ char *buf) \
+{ \
+ struct ucb1x00 *ucb = classdev_to_ucb1x00(dev); \
+ int val; \
+ ucb1x00_adc_enable(ucb); \
+ val = ucb1x00_adc_read(ucb, input, UCB_NOSYNC); \
+ ucb1x00_adc_disable(ucb); \
+ return sprintf(buf, "%d\n", val); \
+} \
+static DEVICE_ATTR(name,0444,name##_show,NULL)
+
+UCB1X00_ATTR(vbatt, UCB_ADC_INP_AD1);
+UCB1X00_ATTR(vcharger, UCB_ADC_INP_AD0);
+UCB1X00_ATTR(batt_temp, UCB_ADC_INP_AD2);
+
+static int ucb1x00_assabet_add(struct ucb1x00_dev *dev)
+{
+ struct ucb1x00 *ucb = dev->ucb;
+ struct platform_device *pdev;
+ struct gpio_keys_platform_data keys;
+ static struct gpio_keys_button buttons[6];
+ unsigned i;
+
+ memset(buttons, 0, sizeof(buttons));
+ memset(&keys, 0, sizeof(keys));
+
+ for (i = 0; i < ARRAY_SIZE(buttons); i++) {
+ buttons[i].code = BTN_0 + i;
+ buttons[i].gpio = ucb->gpio.base + i;
+ buttons[i].type = EV_KEY;
+ buttons[i].can_disable = true;
+ }
+
+ keys.buttons = buttons;
+ keys.nbuttons = ARRAY_SIZE(buttons);
+ keys.poll_interval = 50;
+ keys.name = "ucb1x00";
+
+ pdev = platform_device_register_data(&ucb->dev, "gpio-keys", -1,
+ &keys, sizeof(keys));
+
+ device_create_file(&ucb->dev, &dev_attr_vbatt);
+ device_create_file(&ucb->dev, &dev_attr_vcharger);
+ device_create_file(&ucb->dev, &dev_attr_batt_temp);
+
+ dev->priv = pdev;
+ return 0;
+}
+
+static void ucb1x00_assabet_remove(struct ucb1x00_dev *dev)
+{
+ struct platform_device *pdev = dev->priv;
+
+ if (!IS_ERR(pdev))
+ platform_device_unregister(pdev);
+
+ device_remove_file(&dev->ucb->dev, &dev_attr_batt_temp);
+ device_remove_file(&dev->ucb->dev, &dev_attr_vcharger);
+ device_remove_file(&dev->ucb->dev, &dev_attr_vbatt);
+}
+
+static struct ucb1x00_driver ucb1x00_assabet_driver = {
+ .add = ucb1x00_assabet_add,
+ .remove = ucb1x00_assabet_remove,
+};
+
+static int __init ucb1x00_assabet_init(void)
+{
+ return ucb1x00_register_driver(&ucb1x00_assabet_driver);
+}
+
+static void __exit ucb1x00_assabet_exit(void)
+{
+ ucb1x00_unregister_driver(&ucb1x00_assabet_driver);
+}
+
+module_init(ucb1x00_assabet_init);
+module_exit(ucb1x00_assabet_exit);
+
+MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
+MODULE_DESCRIPTION("Assabet noddy testing only example ADC driver");
+MODULE_LICENSE("GPL");