diff options
| author | Nuno Sá <nuno.sa@analog.com> | 2020-01-07 14:17:04 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-01-12 14:34:12 +0300 |
| commit | 380b107bbf9449ddea0637cefe65a6cbf7b6ca84 (patch) | |
| tree | d1b5b4ae244e546eac2abf5955cde0f81f334e06 /include/linux/iio | |
| parent | 687d39d4512aa5f644450d0662f40aeeac1e84a7 (diff) | |
| download | linux-380b107bbf9449ddea0637cefe65a6cbf7b6ca84.tar.xz | |
iio: adis: Introduce timeouts structure
The adis library only allows to define a `startup_delay` which for some
devices is enough. However, other devices define different timeouts with
significantly different timings which could lead to devices to not wait
enough time or to wait a lot more than necessary (which is not
efficient). This patch introduces a new timeout struct that must be
passed into `adis_init()`. There are mainly, for now, three timeouts
used. This is also an introductory patch with the goal of refactoring
`adis_initial_startup()`. New driver's (eg: adis16480, adis16460) are
replicating code for the device initial setup. With some changes (being
this the first one) we can pass this to `adis_initial_startup()`.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'include/linux/iio')
| -rw-r--r-- | include/linux/iio/imu/adis.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/iio/imu/adis.h b/include/linux/iio/imu/adis.h index 4b5bc0e06e69..853dc8c8365c 100644 --- a/include/linux/iio/imu/adis.h +++ b/include/linux/iio/imu/adis.h @@ -23,6 +23,17 @@ struct adis; struct adis_burst; /** + * struct adis_timeouts - ADIS chip variant timeouts + * @reset_ms - Wait time after rst pin goes inactive + * @sw_reset_ms - Wait time after sw reset command + * @self_test_ms - Wait time after self test command + */ +struct adis_timeout { + u16 reset_ms; + u16 sw_reset_ms; + u16 self_test_ms; +}; +/** * struct adis_data - ADIS chip variant specific data * @read_delay: SPI delay for read operations in us * @write_delay: SPI delay for write operations in us @@ -32,6 +43,7 @@ struct adis_burst; * @diag_stat_reg: Register address of the DIAG_STAT register * @status_error_msgs: Array of error messgaes * @status_error_mask: + * @timeouts: Chip specific delays */ struct adis_data { unsigned int read_delay; @@ -45,6 +57,7 @@ struct adis_data { unsigned int self_test_mask; bool self_test_no_autoclear; unsigned int startup_delay; + const struct adis_timeout *timeouts; const char * const *status_error_msgs; unsigned int status_error_mask; |