forked from luck/tmp_suning_uos_patched
4e68cfbf34
Time to finally kill off the venerable (it was one of my first drivers) lis3l02dq driver in favour of adding support in the st sensors framework. This does loose us the event support that driver always had, but I think that will reappear at some point and in the meantime the maintenance advantages of dropping the 'special' driver for this one part outweigh the issues. It's worth noting this part is ancient and I may well be the only person who still has any on hardware running recent kernels. It has a few 'quirks'. - No WAI register so that just became optional. - A BDU option that really does block updates. Completely. Whatever you do, you don't get any more data with it set. It is documented the same as more modern parts but I presume they are actually clearing for updates after a read of both bytes! - Fixed scale. - It's too quick. Even at slowest rate (280Hz) I can't read out fast enough on my board (stargate 2) to beat new data coming in. Linus' repeat read patch doesn't help in this case. It just means I get 10 readings before dying... So in reality this will get used with software triggers only unless someone has this long out of production device on a quick board. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: Denis CIOCCA <denis.ciocca@st.com> Cc: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
/*
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* STMicroelectronics accelerometers driver
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*
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* Copyright 2012-2013 STMicroelectronics Inc.
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*
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* Denis Ciocca <denis.ciocca@st.com>
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* v. 1.0.0
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* Licensed under the GPL-2.
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*/
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#ifndef ST_ACCEL_H
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#define ST_ACCEL_H
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#include <linux/types.h>
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#include <linux/iio/common/st_sensors.h>
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#define H3LIS331DL_DRIVER_NAME "h3lis331dl_accel"
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#define LIS3LV02DL_ACCEL_DEV_NAME "lis3lv02dl_accel"
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#define LSM303DLHC_ACCEL_DEV_NAME "lsm303dlhc_accel"
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#define LIS3DH_ACCEL_DEV_NAME "lis3dh"
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#define LSM330D_ACCEL_DEV_NAME "lsm330d_accel"
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#define LSM330DL_ACCEL_DEV_NAME "lsm330dl_accel"
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#define LSM330DLC_ACCEL_DEV_NAME "lsm330dlc_accel"
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#define LIS331DL_ACCEL_DEV_NAME "lis331dl_accel"
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#define LIS331DLH_ACCEL_DEV_NAME "lis331dlh"
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#define LSM303DL_ACCEL_DEV_NAME "lsm303dl_accel"
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#define LSM303DLH_ACCEL_DEV_NAME "lsm303dlh_accel"
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#define LSM303DLM_ACCEL_DEV_NAME "lsm303dlm_accel"
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#define LSM330_ACCEL_DEV_NAME "lsm330_accel"
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#define LSM303AGR_ACCEL_DEV_NAME "lsm303agr_accel"
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#define LIS2DH12_ACCEL_DEV_NAME "lis2dh12_accel"
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#define LIS3L02DQ_ACCEL_DEV_NAME "lis3l02dq"
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/**
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* struct st_sensors_platform_data - default accel platform data
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* @drdy_int_pin: default accel DRDY is available on INT1 pin.
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*/
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static const struct st_sensors_platform_data default_accel_pdata = {
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.drdy_int_pin = 1,
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};
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int st_accel_common_probe(struct iio_dev *indio_dev);
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void st_accel_common_remove(struct iio_dev *indio_dev);
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#ifdef CONFIG_IIO_BUFFER
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int st_accel_allocate_ring(struct iio_dev *indio_dev);
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void st_accel_deallocate_ring(struct iio_dev *indio_dev);
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int st_accel_trig_set_state(struct iio_trigger *trig, bool state);
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#define ST_ACCEL_TRIGGER_SET_STATE (&st_accel_trig_set_state)
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#else /* CONFIG_IIO_BUFFER */
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static inline int st_accel_allocate_ring(struct iio_dev *indio_dev)
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{
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return 0;
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}
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static inline void st_accel_deallocate_ring(struct iio_dev *indio_dev)
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{
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}
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#define ST_ACCEL_TRIGGER_SET_STATE NULL
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#endif /* CONFIG_IIO_BUFFER */
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#endif /* ST_ACCEL_H */
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