[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/input/misc/tps65218-pwrbutton.c b/src/kernel/linux/v4.14/drivers/input/misc/tps65218-pwrbutton.c
new file mode 100644
index 0000000..a4455bb
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/input/misc/tps65218-pwrbutton.c
@@ -0,0 +1,170 @@
+/*
+ * Texas Instruments' TPS65217 and TPS65218 Power Button Input Driver
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Felipe Balbi <balbi@ti.com>
+ * Author: Marcin Niestroj <m.niestroj@grinn-global.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/mfd/tps65217.h>
+#include <linux/mfd/tps65218.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+struct tps6521x_data {
+ unsigned int reg_status;
+ unsigned int pb_mask;
+ const char *name;
+};
+
+static const struct tps6521x_data tps65217_data = {
+ .reg_status = TPS65217_REG_STATUS,
+ .pb_mask = TPS65217_STATUS_PB,
+ .name = "tps65217_pwrbutton",
+};
+
+static const struct tps6521x_data tps65218_data = {
+ .reg_status = TPS65218_REG_STATUS,
+ .pb_mask = TPS65218_STATUS_PB_STATE,
+ .name = "tps65218_pwrbutton",
+};
+
+struct tps6521x_pwrbutton {
+ struct device *dev;
+ struct regmap *regmap;
+ struct input_dev *idev;
+ const struct tps6521x_data *data;
+ char phys[32];
+};
+
+static const struct of_device_id of_tps6521x_pb_match[] = {
+ { .compatible = "ti,tps65217-pwrbutton", .data = &tps65217_data },
+ { .compatible = "ti,tps65218-pwrbutton", .data = &tps65218_data },
+ { },
+};
+MODULE_DEVICE_TABLE(of, of_tps6521x_pb_match);
+
+static irqreturn_t tps6521x_pb_irq(int irq, void *_pwr)
+{
+ struct tps6521x_pwrbutton *pwr = _pwr;
+ const struct tps6521x_data *tps_data = pwr->data;
+ unsigned int reg;
+ int error;
+
+ error = regmap_read(pwr->regmap, tps_data->reg_status, ®);
+ if (error) {
+ dev_err(pwr->dev, "can't read register: %d\n", error);
+ goto out;
+ }
+
+ if (reg & tps_data->pb_mask) {
+ input_report_key(pwr->idev, KEY_POWER, 1);
+ pm_wakeup_event(pwr->dev, 0);
+ } else {
+ input_report_key(pwr->idev, KEY_POWER, 0);
+ }
+
+ input_sync(pwr->idev);
+
+out:
+ return IRQ_HANDLED;
+}
+
+static int tps6521x_pb_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct tps6521x_pwrbutton *pwr;
+ struct input_dev *idev;
+ const struct of_device_id *match;
+ int error;
+ int irq;
+
+ match = of_match_node(of_tps6521x_pb_match, dev->of_node);
+ if (!match)
+ return -ENXIO;
+
+ pwr = devm_kzalloc(dev, sizeof(*pwr), GFP_KERNEL);
+ if (!pwr)
+ return -ENOMEM;
+
+ pwr->data = match->data;
+
+ idev = devm_input_allocate_device(dev);
+ if (!idev)
+ return -ENOMEM;
+
+ idev->name = pwr->data->name;
+ snprintf(pwr->phys, sizeof(pwr->phys), "%s/input0",
+ pwr->data->name);
+ idev->phys = pwr->phys;
+ idev->dev.parent = dev;
+ idev->id.bustype = BUS_I2C;
+
+ input_set_capability(idev, EV_KEY, KEY_POWER);
+
+ pwr->regmap = dev_get_regmap(dev->parent, NULL);
+ pwr->dev = dev;
+ pwr->idev = idev;
+ device_init_wakeup(dev, true);
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(dev, "No IRQ resource!\n");
+ return -EINVAL;
+ }
+
+ error = devm_request_threaded_irq(dev, irq, NULL, tps6521x_pb_irq,
+ IRQF_TRIGGER_RISING |
+ IRQF_TRIGGER_FALLING |
+ IRQF_ONESHOT,
+ pwr->data->name, pwr);
+ if (error) {
+ dev_err(dev, "failed to request IRQ #%d: %d\n", irq, error);
+ return error;
+ }
+
+ error= input_register_device(idev);
+ if (error) {
+ dev_err(dev, "Can't register power button: %d\n", error);
+ return error;
+ }
+
+ return 0;
+}
+
+static const struct platform_device_id tps6521x_pwrbtn_id_table[] = {
+ { "tps65218-pwrbutton", },
+ { "tps65217-pwrbutton", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, tps6521x_pwrbtn_id_table);
+
+static struct platform_driver tps6521x_pb_driver = {
+ .probe = tps6521x_pb_probe,
+ .driver = {
+ .name = "tps6521x_pwrbutton",
+ .of_match_table = of_tps6521x_pb_match,
+ },
+ .id_table = tps6521x_pwrbtn_id_table,
+};
+module_platform_driver(tps6521x_pb_driver);
+
+MODULE_DESCRIPTION("TPS6521X Power Button");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");