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Commit 2f3abe6c authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Jonathan Cameron
Browse files

iio:imu: Add support for the ADIS16480 and similar IMUs 



This patch adds support for the ADIS16375, ADIS16480, ADIS16485, ADIS16488 6
degree to 10 degree of freedom IMUs.

Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 6807d721

drivers/iio/imu/Kconfig

+16 −0
Original line number Diff line number Diff line 
#

# IIO imu drivers configuration

#

menu "Inertial measurement units"



config ADIS16480

	tristate "Analog Devices ADIS16480 and similar IMU driver"

	depends on SPI

	select IIO_ADIS_LIB

	select IIO_ADIS_LIB_BUFFER if IIO_BUFFER

	help

	  Say yes here to build support for Analog Devices ADIS16375, ADIS16480,

	  ADIS16485, ADIS16488 inertial sensors.



endmenu



config IIO_ADIS_LIB

	tristate

	help

drivers/iio/imu/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -2,6 +2,8 @@ 
# Makefile for Inertial Measurement Units

#



obj-$(CONFIG_ADIS16480) += adis16480.o



adis_lib-y += adis.o

adis_lib-$(CONFIG_IIO_ADIS_LIB_BUFFER) += adis_trigger.o

adis_lib-$(CONFIG_IIO_ADIS_LIB_BUFFER) += adis_buffer.o

drivers/iio/imu/adis.c

+3 −0
Original line number Diff line number Diff line
@@ -238,6 +238,9 @@ int adis_enable_irq(struct adis *adis, bool enable) 
	int ret = 0;

	uint16_t msc;



	if (adis->data->enable_irq)

		return adis->data->enable_irq(adis, enable);



	ret = adis_read_reg_16(adis, adis->data->msc_ctrl_reg, &msc);

	if (ret)

		goto error_ret;

drivers/iio/imu/adis16480.c

0 → 100644
+925 −0

File added.

Preview size limit exceeded, changes collapsed.

include/linux/iio/imu/adis.h

+4 −0
Original line number Diff line number Diff line
@@ -20,6 +20,8 @@ 
#define ADIS_PAGE_SIZE 0x80

#define ADIS_REG_PAGE_ID 0x00



struct adis;



/**

 * struct adis_data - ADIS chip variant specific data

 * @read_delay: SPI delay for read operations in us
@@ -44,6 +46,8 @@ struct adis_data { 
	const char * const *status_error_msgs;

	unsigned int status_error_mask;



	int (*enable_irq)(struct adis *adis, bool enable);



	bool has_paging;

};