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4b6fb9f3e9
Up to now hmc5843_common_remove() returns zero unconditionally. Make it return void instead which makes it easier to see in the callers that there is no error to handle. Also the return value of i2c and spi remove callbacks is ignored anyway. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com> Link: https://lore.kernel.org/r/20211013203223.2694577-14-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Header file for hmc5843 driver
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*
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* Split from hmc5843.c
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* Copyright (C) Josef Gajdusek <atx@atx.name>
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*/
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#ifndef HMC5843_CORE_H
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#define HMC5843_CORE_H
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#include <linux/regmap.h>
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#include <linux/iio/iio.h>
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#define HMC5843_CONFIG_REG_A 0x00
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#define HMC5843_CONFIG_REG_B 0x01
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#define HMC5843_MODE_REG 0x02
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#define HMC5843_DATA_OUT_MSB_REGS 0x03
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#define HMC5843_STATUS_REG 0x09
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#define HMC5843_ID_REG 0x0a
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#define HMC5843_ID_END 0x0c
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enum hmc5843_ids {
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HMC5843_ID,
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HMC5883_ID,
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HMC5883L_ID,
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HMC5983_ID,
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};
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/**
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* struct hmc5843_data - device specific data
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* @dev: actual device
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* @lock: update and read regmap data
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* @regmap: hardware access register maps
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* @variant: describe chip variants
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* @scan: buffer to pack data for passing to
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* iio_push_to_buffers_with_timestamp()
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*/
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struct hmc5843_data {
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struct device *dev;
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struct mutex lock;
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struct regmap *regmap;
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const struct hmc5843_chip_info *variant;
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struct iio_mount_matrix orientation;
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struct {
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__be16 chans[3];
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s64 timestamp __aligned(8);
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} scan;
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};
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int hmc5843_common_probe(struct device *dev, struct regmap *regmap,
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enum hmc5843_ids id, const char *name);
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void hmc5843_common_remove(struct device *dev);
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int hmc5843_common_suspend(struct device *dev);
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int hmc5843_common_resume(struct device *dev);
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#ifdef CONFIG_PM_SLEEP
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static __maybe_unused SIMPLE_DEV_PM_OPS(hmc5843_pm_ops,
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hmc5843_common_suspend,
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hmc5843_common_resume);
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#define HMC5843_PM_OPS (&hmc5843_pm_ops)
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#else
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#define HMC5843_PM_OPS NULL
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#endif
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#endif /* HMC5843_CORE_H */
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