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Commit 65166f42 authored by Gustavo Solaira's avatar Gustavo Solaira
Browse files

input: sensors: Add vdd-min-uv property to mpu6050 driver 



Add the vdd-min-uv property so the VDD voltage can
be configured through the device tree. This is
required by some parts that use 1.8V as the nominal
VDD voltage.

Change-Id: I66ef0432bfc804a0980d41892855f3e229840035
Signed-off-by: default avatarGustavo Solaira <gustavos@codeaurora.org>
parent 069f11cb

Documentation/devicetree/bindings/input/misc/mpu6050.txt

+1 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ Optional properties: 
			instead of polling data.

 - invn,gpio-int	: GPIO used for interrupt.

 - invn,gpio-en		: GPIO used for power enabling.

 - invn,vdd-min-uv	: Minimum VDD supply voltage in micro-volts.



Example:

	i2c@f9925000 {

drivers/input/misc/mpu6050.c

+7 −1
Original line number Diff line number Diff line
@@ -365,7 +365,8 @@ static int mpu6050_power_init(struct mpu6050_sensor *sensor) 
	}



	if (regulator_count_voltages(sensor->vdd) > 0) {

		ret = regulator_set_voltage(sensor->vdd, MPU6050_VDD_MIN_UV,

		ret = regulator_set_voltage(sensor->vdd,

					   sensor->pdata->vdd_min_uv,

					   MPU6050_VDD_MAX_UV);

		if (ret) {

			dev_err(&sensor->client->dev,
@@ -2020,6 +2021,11 @@ static int mpu6050_parse_dt(struct device *dev, 
	pdata->use_int = of_property_read_bool(dev->of_node,

				"invn,use-interrupt");



	rc = of_property_read_u32(dev->of_node, "invn,vdd-min-uv",

				&pdata->vdd_min_uv);

	if (rc)

		pdata->vdd_min_uv = MPU6050_VDD_MIN_UV;



	return 0;

}

#else

drivers/input/misc/mpu6050.h

+1 −0
Original line number Diff line number Diff line
@@ -283,6 +283,7 @@ struct mpu6050_platform_data { 
	u32 int_flags;

	bool use_int;

	u8 place;

	u32 vdd_min_uv;

};



#endif /* __MPU6050_H__ */