[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/iio/gyro/mpu3050-i2c.c b/src/kernel/linux/v4.14/drivers/iio/gyro/mpu3050-i2c.c
new file mode 100644
index 0000000..93f08b3
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/iio/gyro/mpu3050-i2c.c
@@ -0,0 +1,123 @@
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/i2c-mux.h>
+#include <linux/iio/iio.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/pm_runtime.h>
+
+#include "mpu3050.h"
+
+static const struct regmap_config mpu3050_i2c_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int mpu3050_i2c_bypass_select(struct i2c_mux_core *mux, u32 chan_id)
+{
+ struct mpu3050 *mpu3050 = i2c_mux_priv(mux);
+
+ /* Just power up the device, that is all that is needed */
+ pm_runtime_get_sync(mpu3050->dev);
+ return 0;
+}
+
+static int mpu3050_i2c_bypass_deselect(struct i2c_mux_core *mux, u32 chan_id)
+{
+ struct mpu3050 *mpu3050 = i2c_mux_priv(mux);
+
+ pm_runtime_mark_last_busy(mpu3050->dev);
+ pm_runtime_put_autosuspend(mpu3050->dev);
+ return 0;
+}
+
+static int mpu3050_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct regmap *regmap;
+ const char *name;
+ struct mpu3050 *mpu3050;
+ int ret;
+
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_I2C_BLOCK))
+ return -EOPNOTSUPP;
+
+ if (id)
+ name = id->name;
+ else
+ return -ENODEV;
+
+ regmap = devm_regmap_init_i2c(client, &mpu3050_i2c_regmap_config);
+ if (IS_ERR(regmap)) {
+ dev_err(&client->dev, "Failed to register i2c regmap %d\n",
+ (int)PTR_ERR(regmap));
+ return PTR_ERR(regmap);
+ }
+
+ ret = mpu3050_common_probe(&client->dev, regmap, client->irq, name);
+ if (ret)
+ return ret;
+
+ /* The main driver is up, now register the I2C mux */
+ mpu3050 = iio_priv(dev_get_drvdata(&client->dev));
+ mpu3050->i2cmux = i2c_mux_alloc(client->adapter, &client->dev,
+ 1, 0, I2C_MUX_LOCKED | I2C_MUX_GATE,
+ mpu3050_i2c_bypass_select,
+ mpu3050_i2c_bypass_deselect);
+ /* Just fail the mux, there is no point in killing the driver */
+ if (!mpu3050->i2cmux)
+ dev_err(&client->dev, "failed to allocate I2C mux\n");
+ else {
+ mpu3050->i2cmux->priv = mpu3050;
+ /* Ignore failure, not critical */
+ i2c_mux_add_adapter(mpu3050->i2cmux, 0, 0, 0);
+ }
+
+ return 0;
+}
+
+static int mpu3050_i2c_remove(struct i2c_client *client)
+{
+ struct iio_dev *indio_dev = dev_get_drvdata(&client->dev);
+ struct mpu3050 *mpu3050 = iio_priv(indio_dev);
+
+ if (mpu3050->i2cmux)
+ i2c_mux_del_adapters(mpu3050->i2cmux);
+
+ return mpu3050_common_remove(&client->dev);
+}
+
+/*
+ * device id table is used to identify what device can be
+ * supported by this driver
+ */
+static const struct i2c_device_id mpu3050_i2c_id[] = {
+ { "mpu3050" },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, mpu3050_i2c_id);
+
+static const struct of_device_id mpu3050_i2c_of_match[] = {
+ { .compatible = "invensense,mpu3050", .data = "mpu3050" },
+ /* Deprecated vendor ID from the Input driver */
+ { .compatible = "invn,mpu3050", .data = "mpu3050" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, mpu3050_i2c_of_match);
+
+static struct i2c_driver mpu3050_i2c_driver = {
+ .probe = mpu3050_i2c_probe,
+ .remove = mpu3050_i2c_remove,
+ .id_table = mpu3050_i2c_id,
+ .driver = {
+ .of_match_table = mpu3050_i2c_of_match,
+ .name = "mpu3050-i2c",
+ .pm = &mpu3050_dev_pm_ops,
+ },
+};
+module_i2c_driver(mpu3050_i2c_driver);
+
+MODULE_AUTHOR("Linus Walleij");
+MODULE_DESCRIPTION("Invensense MPU3050 gyroscope driver");
+MODULE_LICENSE("GPL");