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| author | Alexandru Ardelean <alexandru.ardelean@analog.com> | 2020-02-10 16:26:04 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-03-08 20:28:31 +0300 |
| commit | 1fd4567026926d01a94a74d0543e324fc794aa73 (patch) | |
| tree | bc615327ded1a609277037fcd9d3d05a45ccbaf0 /include/linux/iio/imu | |
| parent | ecb010d441088c447785a1249e69003437f96c9c (diff) | |
| download | linux-1fd4567026926d01a94a74d0543e324fc794aa73.tar.xz | |
iio: imu: adis: add support product ID check in adis_initial_startup
Each driver/chip that wants to validate it's product id, can now
specify a 'prod_id_reg' and an expected 'prod_id' value.
The 'prod_id' value is intentionally left 0 (uninitialized). There aren't
(yet) any product IDs with value 0; this enforces that both 'prod_id_reg'
and 'prod_id' are specified.
At the very least, this routine validates that the SPI connection to the
ADIS chip[s] works well.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'include/linux/iio/imu')
| -rw-r--r-- | include/linux/iio/imu/adis.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/iio/imu/adis.h b/include/linux/iio/imu/adis.h index b7feca4e5f26..ac7cfd073804 100644 --- a/include/linux/iio/imu/adis.h +++ b/include/linux/iio/imu/adis.h @@ -41,6 +41,8 @@ struct adis_timeout { * @glob_cmd_reg: Register address of the GLOB_CMD register * @msc_ctrl_reg: Register address of the MSC_CTRL register * @diag_stat_reg: Register address of the DIAG_STAT register + * @prod_id_reg: Register address of the PROD_ID register + * @prod_id: Product ID code that should be expected when reading @prod_id_reg * @self_test_reg: Register address to request self test command * @status_error_msgs: Array of error messgaes * @status_error_mask: @@ -54,6 +56,9 @@ struct adis_data { unsigned int glob_cmd_reg; unsigned int msc_ctrl_reg; unsigned int diag_stat_reg; + unsigned int prod_id_reg; + + unsigned int prod_id; unsigned int self_test_mask; unsigned int self_test_reg; |