1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (C) 2015 Intel Corporation Inc. 4 */ 5 #include <linux/module.h> 6 #include <linux/acpi.h> 7 #include <linux/of.h> 8 #include <linux/property.h> 9 #include <linux/spi/spi.h> 10 #include <linux/regmap.h> 11 #include <linux/iio/iio.h> 12 #include "inv_mpu_iio.h" 13 14 static const struct regmap_config inv_mpu_regmap_config = { 15 .reg_bits = 8, 16 .val_bits = 8, 17 }; 18 19 static int inv_mpu_i2c_disable(struct iio_dev *indio_dev) 20 { 21 struct inv_mpu6050_state *st = iio_priv(indio_dev); 22 int ret = 0; 23 24 if (st->reg->i2c_if) { 25 ret = regmap_write(st->map, st->reg->i2c_if, 26 INV_ICM20602_BIT_I2C_IF_DIS); 27 } else { 28 st->chip_config.user_ctrl |= INV_MPU6050_BIT_I2C_IF_DIS; 29 ret = regmap_write(st->map, st->reg->user_ctrl, 30 st->chip_config.user_ctrl); 31 } 32 33 return ret; 34 } 35 36 static int inv_mpu_probe(struct spi_device *spi) 37 { 38 const void *match; 39 struct regmap *regmap; 40 const struct spi_device_id *spi_id; 41 const char *name = NULL; 42 enum inv_devices chip_type; 43 44 if ((spi_id = spi_get_device_id(spi))) { 45 chip_type = (enum inv_devices)spi_id->driver_data; 46 name = spi_id->name; 47 } else if ((match = device_get_match_data(&spi->dev))) { 48 chip_type = (enum inv_devices)match; 49 name = dev_name(&spi->dev); 50 } else { 51 return -ENODEV; 52 } 53 54 regmap = devm_regmap_init_spi(spi, &inv_mpu_regmap_config); 55 if (IS_ERR(regmap)) { 56 dev_err(&spi->dev, "Failed to register spi regmap: %pe\n", 57 regmap); 58 return PTR_ERR(regmap); 59 } 60 61 return inv_mpu_core_probe(regmap, spi->irq, name, 62 inv_mpu_i2c_disable, chip_type); 63 } 64 65 /* 66 * device id table is used to identify what device can be 67 * supported by this driver 68 */ 69 static const struct spi_device_id inv_mpu_id[] = { 70 {"mpu6000", INV_MPU6000}, 71 {"mpu6500", INV_MPU6500}, 72 {"mpu6515", INV_MPU6515}, 73 {"mpu9250", INV_MPU9250}, 74 {"mpu9255", INV_MPU9255}, 75 {"icm20608", INV_ICM20608}, 76 {"icm20609", INV_ICM20609}, 77 {"icm20689", INV_ICM20689}, 78 {"icm20602", INV_ICM20602}, 79 {"icm20690", INV_ICM20690}, 80 {"iam20680", INV_IAM20680}, 81 {} 82 }; 83 84 MODULE_DEVICE_TABLE(spi, inv_mpu_id); 85 86 static const struct of_device_id inv_of_match[] = { 87 { 88 .compatible = "invensense,mpu6000", 89 .data = (void *)INV_MPU6000 90 }, 91 { 92 .compatible = "invensense,mpu6500", 93 .data = (void *)INV_MPU6500 94 }, 95 { 96 .compatible = "invensense,mpu6515", 97 .data = (void *)INV_MPU6515 98 }, 99 { 100 .compatible = "invensense,mpu9250", 101 .data = (void *)INV_MPU9250 102 }, 103 { 104 .compatible = "invensense,mpu9255", 105 .data = (void *)INV_MPU9255 106 }, 107 { 108 .compatible = "invensense,icm20608", 109 .data = (void *)INV_ICM20608 110 }, 111 { 112 .compatible = "invensense,icm20609", 113 .data = (void *)INV_ICM20609 114 }, 115 { 116 .compatible = "invensense,icm20689", 117 .data = (void *)INV_ICM20689 118 }, 119 { 120 .compatible = "invensense,icm20602", 121 .data = (void *)INV_ICM20602 122 }, 123 { 124 .compatible = "invensense,icm20690", 125 .data = (void *)INV_ICM20690 126 }, 127 { 128 .compatible = "invensense,iam20680", 129 .data = (void *)INV_IAM20680 130 }, 131 { } 132 }; 133 MODULE_DEVICE_TABLE(of, inv_of_match); 134 135 static const struct acpi_device_id inv_acpi_match[] = { 136 {"INVN6000", INV_MPU6000}, 137 { }, 138 }; 139 MODULE_DEVICE_TABLE(acpi, inv_acpi_match); 140 141 static struct spi_driver inv_mpu_driver = { 142 .probe = inv_mpu_probe, 143 .id_table = inv_mpu_id, 144 .driver = { 145 .of_match_table = inv_of_match, 146 .acpi_match_table = ACPI_PTR(inv_acpi_match), 147 .name = "inv-mpu6000-spi", 148 .pm = &inv_mpu_pmops, 149 }, 150 }; 151 152 module_spi_driver(inv_mpu_driver); 153 154 MODULE_AUTHOR("Adriana Reus <adriana.reus@intel.com>"); 155 MODULE_DESCRIPTION("Invensense device MPU6000 driver"); 156 MODULE_LICENSE("GPL"); 157