hamza.kesraoui/sst-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

iio: imu: inv_icm42600: fix spi burst write not supported

Browse Source 
commit c0f866de4ce447bca3191b9cefac60c4b36a7922 upstream.

Burst write with SPI is not working for all icm42600 chips. It was
only used for setting user offsets with regmap_bulk_write.

Add specific SPI regmap config for using only single write with SPI.

Fixes: 9f9ff91b77 ("iio: imu: inv_icm42600: add SPI driver for inv_icm42600 driver")
Cc: stable@vger.kernel.org
Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Link: https://patch.msgid.link/20241112-inv-icm42600-fix-spi-burst-write-not-supported-v2-1-97690dc03607@tdk.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jean-Baptiste Maneyrol 2024-11-12 10:30:10 +01:00 committed by Greg Kroah-Hartman
parent 479a42eedb
commit f2e4823baa
3 changed files with 14 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/iio/imu/inv_icm42600/inv_icm42600.h
View File

@ -360,6 +360,7 @@ struct inv_icm42600_state {
typedef int (*inv_icm42600_bus_setup)(struct inv_icm42600_state *);
extern const struct regmap_config inv_icm42600_regmap_config;
extern const struct regmap_config inv_icm42600_spi_regmap_config;
extern const struct dev_pm_ops inv_icm42600_pm_ops;
const struct iio_mount_matrix *

11
drivers/iio/imu/inv_icm42600/inv_icm42600_core.c
View File

@ -43,6 +43,17 @@ const struct regmap_config inv_icm42600_regmap_config = {
};
EXPORT_SYMBOL_GPL(inv_icm42600_regmap_config);
/* define specific regmap for SPI not supporting burst write */
const struct regmap_config inv_icm42600_spi_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0x4FFF,
.ranges = inv_icm42600_regmap_ranges,
.num_ranges = ARRAY_SIZE(inv_icm42600_regmap_ranges),
.use_single_write = true,
};
EXPORT_SYMBOL_GPL(inv_icm42600_spi_regmap_config);
struct inv_icm42600_hw {
uint8_t whoami;
const char *name;

3
drivers/iio/imu/inv_icm42600/inv_icm42600_spi.c
View File

@ -59,7 +59,8 @@ static int inv_icm42600_probe(struct spi_device *spi)
return -EINVAL;
chip = (uintptr_t)match;
regmap = devm_regmap_init_spi(spi, &inv_icm42600_regmap_config);
/* use SPI specific regmap */
regmap = devm_regmap_init_spi(spi, &inv_icm42600_spi_regmap_config);
if (IS_ERR(regmap))
return PTR_ERR(regmap);