1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (C) 2015 Intel Corporation Inc. 4 */ 5 #include <linux/mod_devicetable.h> 6 #include <linux/module.h> 7 #include <linux/property.h> 8 #include <linux/spi/spi.h> 9 #include <linux/regmap.h> 10 #include <linux/iio/iio.h> 11 #include "inv_mpu_iio.h" 12 13 static const struct regmap_config inv_mpu_regmap_config = { 14 .reg_bits = 8, 15 .val_bits = 8, 16 }; 17 18 static int inv_mpu_i2c_disable(struct iio_dev *indio_dev) 19 { 20 struct inv_mpu6050_state *st = iio_priv(indio_dev); 21 int ret = 0; 22 23 if (st->reg->i2c_if) { 24 ret = regmap_write(st->map, st->reg->i2c_if, 25 INV_ICM20602_BIT_I2C_IF_DIS); 26 } else { 27 st->chip_config.user_ctrl |= INV_MPU6050_BIT_I2C_IF_DIS; 28 ret = regmap_write(st->map, st->reg->user_ctrl, 29 st->chip_config.user_ctrl); 30 } 31 32 return ret; 33 } 34 35 static int inv_mpu_probe(struct spi_device *spi) 36 { 37 const void *match; 38 struct regmap *regmap; 39 const struct spi_device_id *spi_id; 40 const char *name = NULL; 41 enum inv_devices chip_type; 42 43 if ((spi_id = spi_get_device_id(spi))) { 44 chip_type = (enum inv_devices)spi_id->driver_data; 45 name = spi_id->name; 46 } else if ((match = device_get_match_data(&spi->dev))) { 47 chip_type = (uintptr_t)match; 48 name = dev_name(&spi->dev); 49 } else { 50 return -ENODEV; 51 } 52 53 regmap = devm_regmap_init_spi(spi, &inv_mpu_regmap_config); 54 if (IS_ERR(regmap)) { 55 dev_err(&spi->dev, "Failed to register spi regmap: %pe\n", 56 regmap); 57 return PTR_ERR(regmap); 58 } 59 60 return inv_mpu_core_probe(regmap, spi->irq, name, 61 inv_mpu_i2c_disable, chip_type); 62 } 63 64 /* 65 * device id table is used to identify what device can be 66 * supported by this driver 67 */ 68 static const struct spi_device_id inv_mpu_id[] = { 69 {"mpu6000", INV_MPU6000}, 70 {"mpu6500", INV_MPU6500}, 71 {"mpu6515", INV_MPU6515}, 72 {"mpu6880", INV_MPU6880}, 73 {"mpu9250", INV_MPU9250}, 74 {"mpu9255", INV_MPU9255}, 75 {"icm20608", INV_ICM20608}, 76 {"icm20608d", INV_ICM20608D}, 77 {"icm20609", INV_ICM20609}, 78 {"icm20689", INV_ICM20689}, 79 {"icm20602", INV_ICM20602}, 80 {"icm20690", INV_ICM20690}, 81 {"iam20680", INV_IAM20680}, 82 {} 83 }; 84 85 MODULE_DEVICE_TABLE(spi, inv_mpu_id); 86 87 static const struct of_device_id inv_of_match[] = { 88 { 89 .compatible = "invensense,mpu6000", 90 .data = (void *)INV_MPU6000 91 }, 92 { 93 .compatible = "invensense,mpu6500", 94 .data = (void *)INV_MPU6500 95 }, 96 { 97 .compatible = "invensense,mpu6515", 98 .data = (void *)INV_MPU6515 99 }, 100 { 101 .compatible = "invensense,mpu6880", 102 .data = (void *)INV_MPU6880 103 }, 104 { 105 .compatible = "invensense,mpu9250", 106 .data = (void *)INV_MPU9250 107 }, 108 { 109 .compatible = "invensense,mpu9255", 110 .data = (void *)INV_MPU9255 111 }, 112 { 113 .compatible = "invensense,icm20608", 114 .data = (void *)INV_ICM20608 115 }, 116 { 117 .compatible = "invensense,icm20608d", 118 .data = (void *)INV_ICM20608D 119 }, 120 { 121 .compatible = "invensense,icm20609", 122 .data = (void *)INV_ICM20609 123 }, 124 { 125 .compatible = "invensense,icm20689", 126 .data = (void *)INV_ICM20689 127 }, 128 { 129 .compatible = "invensense,icm20602", 130 .data = (void *)INV_ICM20602 131 }, 132 { 133 .compatible = "invensense,icm20690", 134 .data = (void *)INV_ICM20690 135 }, 136 { 137 .compatible = "invensense,iam20680", 138 .data = (void *)INV_IAM20680 139 }, 140 { } 141 }; 142 MODULE_DEVICE_TABLE(of, inv_of_match); 143 144 static const struct acpi_device_id inv_acpi_match[] = { 145 {"INVN6000", INV_MPU6000}, 146 { }, 147 }; 148 MODULE_DEVICE_TABLE(acpi, inv_acpi_match); 149 150 static struct spi_driver inv_mpu_driver = { 151 .probe = inv_mpu_probe, 152 .id_table = inv_mpu_id, 153 .driver = { 154 .of_match_table = inv_of_match, 155 .acpi_match_table = inv_acpi_match, 156 .name = "inv-mpu6000-spi", 157 .pm = &inv_mpu_pmops, 158 }, 159 }; 160 161 module_spi_driver(inv_mpu_driver); 162 163 MODULE_AUTHOR("Adriana Reus <adriana.reus@intel.com>"); 164 MODULE_DESCRIPTION("Invensense device MPU6000 driver"); 165 MODULE_LICENSE("GPL"); 166