4  * SPDX-License-Identifier: Apache-2.0
72 	/* The sensor device returns 10^-9 Teslas after scaling.  in ak8963_convert_magn()
80 		return -EOVERFLOW;  in ak8963_convert_magn()
85 	val->val1 = scaled_val / 1000000;  in ak8963_convert_magn()
86 	val->val2 = scaled_val % 1000000;  in ak8963_convert_magn()
96 	const struct mpu9250_config *cfg = dev->config;  in ak8963_execute_rw()
106 	ret = i2c_reg_write_byte_dt(&cfg->i2c,  in ak8963_execute_rw()
115 	ret = i2c_reg_write_byte_dt(&cfg->i2c,  in ak8963_execute_rw()
124 	ret = i2c_reg_write_byte_dt(&cfg->i2c,  in ak8963_execute_rw()
134 		ret = i2c_reg_read_byte_dt(&cfg->i2c,  in ak8963_execute_rw()
147 	const struct mpu9250_config *cfg = dev->config;  in ak8963_read_reg()
158 	ret = i2c_reg_read_byte_dt(&cfg->i2c,  in ak8963_read_reg()
170 	const struct mpu9250_config *cfg = dev->config;  in ak8963_write_reg()
174 	ret = i2c_reg_write_byte_dt(&cfg->i2c,  in ak8963_write_reg()
215 	 *  -> 0.1499 * 10^4 = 1499  in ak8963_calc_adj()
216 	 *  So if we multiply with scaling with 1499 the unit is uG.  in ak8963_calc_adj()
218 	 *  Calculation from MPU-9250 Register Map and Descriptions  in ak8963_calc_adj()
219 	 *  adj = (((val-128)*0.5)/128)+1  in ak8963_calc_adj()
221 	return ((AK9863_SCALE_TO_UG * (val - 128)) / 256) + AK9863_SCALE_TO_UG;  in ak8963_calc_adj()
227 	struct mpu9250_data *drv_data = dev->data;  in ak8963_fetch_adj()
243 	drv_data->magn_scale_x = ak8963_calc_adj(buf);  in ak8963_fetch_adj()
250 	drv_data->magn_scale_y = ak8963_calc_adj(buf);  in ak8963_fetch_adj()
257 	drv_data->magn_scale_z = ak8963_calc_adj(buf);  in ak8963_fetch_adj()
266 	LOG_DBG("Adjustment values %d %d %d", drv_data->magn_scale_x,  in ak8963_fetch_adj()
267 		drv_data->magn_scale_y, drv_data->magn_scale_z);  in ak8963_fetch_adj()
276 	/* Reset the chip -> reset all settings. */  in ak8963_reset()
292 	const struct mpu9250_config *cfg = dev->config;  in ak8963_init_master()
296 	ret = i2c_reg_write_byte_dt(&cfg->i2c,  in ak8963_init_master()
305 	ret = i2c_reg_write_byte_dt(&cfg->i2c,  in ak8963_init_master()
318 	const struct mpu9250_config *cfg = dev->config;  in ak8963_init_readout()
322 	ret = i2c_reg_write_byte_dt(&cfg->i2c,  in ak8963_init_readout()
331 	ret = i2c_reg_write_byte_dt(&cfg->i2c,  in ak8963_init_readout()
339 	ret = i2c_reg_write_byte_dt(&cfg->i2c,  in ak8963_init_readout()
375 		LOG_ERR("Invalid AK8963 chip id (0x%X).", buf);  in ak8963_init()
376 		return -ENOTSUP;  in ak8963_init()
386 	/* Set AK sample rate and resolution */  in ak8963_init()