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#include <linux/err.h>
#include <linux/of_gpio.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/regulator/consumer.h>
#include <linux/i2c.h>
#include <linux/mpu.h>
#include "inv_mpu_dts.h"
int inv_mpu_power_on(struct mpu_platform_data *pdata)
{
int err ;
err = regulator_enable(pdata->vdd_ana);
err = regulator_enable(pdata->vdd_i2c);
pr_debug(KERN_INFO "inv_mpu_power_on call");
return err ;
}
int inv_mpu_power_off(struct mpu_platform_data *pdata)
{
int err ;
err = regulator_disable(pdata->vdd_ana);
err = regulator_disable(pdata->vdd_i2c);
pr_debug(KERN_INFO "inv_mpu_power_off call");
return err;
}
int inv_parse_orientation_matrix(struct device *dev, s8 *orient)
{
int rc, i;
struct device_node *np = dev->of_node;
u32 temp_val, temp_val2;
for (i = 0; i < 9; i++)
orient[i] = 0;
/* parsing axis x orientation matrix*/
rc = of_property_read_u32(np, "axis_map_x", &temp_val);
if (rc) {
dev_err(dev, "Unable to read axis_map_x\n");
return rc;
}
rc = of_property_read_u32(np, "negate_x", &temp_val2);
if (rc) {
dev_err(dev, "Unable to read negate_x\n");
return rc;
}
if (temp_val2)
orient[temp_val] = -1;
else
orient[temp_val] = 1;
/* parsing axis y orientation matrix*/
rc = of_property_read_u32(np, "axis_map_y", &temp_val);
if (rc) {
dev_err(dev, "Unable to read axis_map_y\n");
return rc;
}
rc = of_property_read_u32(np, "negate_y", &temp_val2);
if (rc) {
dev_err(dev, "Unable to read negate_y\n");
return rc;
}
if (temp_val2)
orient[3 + temp_val] = -1;
else
orient[3 + temp_val] = 1;
/* parsing axis z orientation matrix*/
rc = of_property_read_u32(np, "axis_map_z", &temp_val);
if (rc) {
dev_err(dev, "Unable to read axis_map_z\n");
return rc;
}
rc = of_property_read_u32(np, "negate_z", &temp_val2);
if (rc) {
dev_err(dev, "Unable to read negate_z\n");
return rc;
}
if (temp_val2)
orient[6 + temp_val] = -1;
else
orient[6 + temp_val] = 1;
return 0;
}
int inv_parse_secondary_orientation_matrix(struct device *dev,
s8 *orient)
{
int rc, i;
struct device_node *np = dev->of_node;
u32 temp_val, temp_val2;
for (i = 0; i < 9; i++)
orient[i] = 0;
/* parsing axis x orientation matrix*/
rc = of_property_read_u32(np, "inven,secondary_axis_map_x", &temp_val);
if (rc) {
dev_err(dev, "Unable to read secondary axis_map_x\n");
return rc;
}
rc = of_property_read_u32(np, "inven,secondary_negate_x", &temp_val2);
if (rc) {
dev_err(dev, "Unable to read secondary negate_x\n");
return rc;
}
if (temp_val2)
orient[temp_val] = -1;
else
orient[temp_val] = 1;
/* parsing axis y orientation matrix*/
rc = of_property_read_u32(np, "inven,secondary_axis_map_y", &temp_val);
if (rc) {
dev_err(dev, "Unable to read secondary axis_map_y\n");
return rc;
}
rc = of_property_read_u32(np, "inven,secondary_negate_y", &temp_val2);
if (rc) {
dev_err(dev, "Unable to read secondary negate_y\n");
return rc;
}
if (temp_val2)
orient[3 + temp_val] = -1;
else
orient[3 + temp_val] = 1;
/* parsing axis z orientation matrix*/
rc = of_property_read_u32(np, "inven,secondary_axis_map_z", &temp_val);
if (rc) {
dev_err(dev, "Unable to read secondary axis_map_z\n");
return rc;
}
rc = of_property_read_u32(np, "inven,secondary_negate_z", &temp_val2);
if (rc) {
dev_err(dev, "Unable to read secondary negate_z\n");
return rc;
}
if (temp_val2)
orient[6 + temp_val] = -1;
else
orient[6 + temp_val] = 1;
return 0;
}
int inv_parse_secondary(struct device *dev, struct mpu_platform_data *pdata)
{
int rc;
struct device_node *np = dev->of_node;
u32 temp_val;
const char *name;
if (of_property_read_string(np, "inven,secondary_type", &name)) {
dev_err(dev, "Missing secondary type.\n");
return -EINVAL;
}
if (!strcmp(name, "compass")) {
pdata->sec_slave_type = SECONDARY_SLAVE_TYPE_COMPASS;
} else if (!strcmp(name, "none")) {
pdata->sec_slave_type = SECONDARY_SLAVE_TYPE_NONE;
return 0;
} else {
return -EINVAL;
}
if (of_property_read_string(np, "inven,secondary_name", &name)) {
dev_err(dev, "Missing secondary name.\n");
return -EINVAL;
}
if (!strcmp(name, "ak8963"))
pdata->sec_slave_id = COMPASS_ID_AK8963;
else if (!strcmp(name, "ak8975"))
pdata->sec_slave_id = COMPASS_ID_AK8975;
else if (!strcmp(name, "ak8972"))
pdata->sec_slave_id = COMPASS_ID_AK8972;
else
return -EINVAL;
rc = of_property_read_u32(np, "inven,secondary_reg", &temp_val);
if (rc) {
dev_err(dev, "Unable to read secondary register\n");
return rc;
}
pdata->secondary_i2c_addr = temp_val;
rc = inv_parse_secondary_orientation_matrix(dev,
pdata->secondary_orientation);
return rc;
}
int inv_parse_aux(struct device *dev, struct mpu_platform_data *pdata)
{
int rc;
struct device_node *np = dev->of_node;
u32 temp_val;
const char *name;
if (of_property_read_string(np, "inven,aux_type", &name)) {
dev_err(dev, "Missing aux type.\n");
return -EINVAL;
}
if (!strcmp(name, "pressure")) {
pdata->aux_slave_type = SECONDARY_SLAVE_TYPE_PRESSURE;
} else if (!strcmp(name, "none")) {
pdata->aux_slave_type = SECONDARY_SLAVE_TYPE_NONE;
return 0;
} else {
return -EINVAL;
}
if (of_property_read_string(np, "inven,aux_name", &name)) {
dev_err(dev, "Missing aux name.\n");
return -EINVAL;
}
if (!strcmp(name, "bmp280"))
pdata->aux_slave_id = PRESSURE_ID_BMP280;
else
return -EINVAL;
rc = of_property_read_u32(np, "inven,aux_reg", &temp_val);
if (rc) {
dev_err(dev, "Unable to read aux register\n");
return rc;
}
pdata->aux_i2c_addr = temp_val;
return 0;
}
int invensense_mpu_parse_dt(struct device *dev, struct mpu_platform_data *pdata)
{
int rc;
pr_debug("Invensense MPU parse_dt started.\n");
rc = inv_parse_orientation_matrix(dev, pdata->orientation);
if (rc)
return rc;
rc = inv_parse_secondary(dev, pdata);
if (rc)
return rc;
inv_parse_aux(dev, pdata);
pdata->vdd_ana = regulator_get(dev, "inven,vdd_ana");
if (IS_ERR(pdata->vdd_ana)) {
rc = PTR_ERR(pdata->vdd_ana);
dev_err(dev, "Regulator get failed vdd_ana-supply rc=%d\n", rc);
return rc;
}
pdata->vdd_i2c = regulator_get(dev, "inven,vcc_i2c");
if (IS_ERR(pdata->vdd_i2c)) {
rc = PTR_ERR(pdata->vdd_i2c);
dev_err(dev, "Regulator get failed vcc-i2c-supply rc=%d\n", rc);
return rc;
}
pdata->power_on = inv_mpu_power_on;
pdata->power_off = inv_mpu_power_off;
pr_debug("Invensense MPU parse_dt complete.\n");
return rc;
}
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