1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Header file for hmc5843 driver 4 * 5 * Split from hmc5843.c 6 * Copyright (C) Josef Gajdusek <atx@atx.name> 7 */ 8 9 #ifndef HMC5843_CORE_H 10 #define HMC5843_CORE_H 11 12 #include <linux/regmap.h> 13 #include <linux/iio/iio.h> 14 15 #define HMC5843_CONFIG_REG_A 0x00 16 #define HMC5843_CONFIG_REG_B 0x01 17 #define HMC5843_MODE_REG 0x02 18 #define HMC5843_DATA_OUT_MSB_REGS 0x03 19 #define HMC5843_STATUS_REG 0x09 20 #define HMC5843_ID_REG 0x0a 21 #define HMC5843_ID_END 0x0c 22 23 enum hmc5843_ids { 24 HMC5843_ID, 25 HMC5883_ID, 26 HMC5883L_ID, 27 HMC5983_ID, 28 }; 29 30 /** 31 * struct hmc5843_data - device specific data 32 * @dev: actual device 33 * @lock: update and read regmap data 34 * @regmap: hardware access register maps 35 * @variant: describe chip variants 36 * @buffer: 3x 16-bit channels + padding + 64-bit timestamp 37 */ 38 struct hmc5843_data { 39 struct device *dev; 40 struct mutex lock; 41 struct regmap *regmap; 42 const struct hmc5843_chip_info *variant; 43 struct iio_mount_matrix orientation; 44 __be16 buffer[8]; 45 }; 46 47 int hmc5843_common_probe(struct device *dev, struct regmap *regmap, 48 enum hmc5843_ids id, const char *name); 49 int hmc5843_common_remove(struct device *dev); 50 51 int hmc5843_common_suspend(struct device *dev); 52 int hmc5843_common_resume(struct device *dev); 53 54 #ifdef CONFIG_PM_SLEEP 55 static __maybe_unused SIMPLE_DEV_PM_OPS(hmc5843_pm_ops, 56 hmc5843_common_suspend, 57 hmc5843_common_resume); 58 #define HMC5843_PM_OPS (&hmc5843_pm_ops) 59 #else 60 #define HMC5843_PM_OPS NULL 61 #endif 62 63 #endif /* HMC5843_CORE_H */ 64