From: Remi Buisson <remi.buisson@tdk.com>
Add I2C driver for InvenSense ICM-456000 devices.
Signed-off-by: Remi Buisson <remi.buisson@tdk.com>
---
drivers/iio/imu/inv_icm45600/Kconfig | 21 ++++++
drivers/iio/imu/inv_icm45600/Makefile | 3 +
drivers/iio/imu/inv_icm45600/inv_icm45600_i2c.c | 98 +++++++++++++++++++++++++
3 files changed, 122 insertions(+)
diff --git a/drivers/iio/imu/inv_icm45600/Kconfig b/drivers/iio/imu/inv_icm45600/Kconfig
index ea0a8d20cba26549b74105fa6fdbca1ddb222633..5b044a954e952ffa8e44507eea42872e1f3161bc 100644
--- a/drivers/iio/imu/inv_icm45600/Kconfig
+++ b/drivers/iio/imu/inv_icm45600/Kconfig
@@ -5,3 +5,24 @@ config INV_ICM45600
select IIO_BUFFER
select IIO_KFIFO_BUF
select IIO_INV_SENSORS_TIMESTAMP
+
+config INV_ICM45600_I2C
+ tristate "InvenSense ICM-456xx I2C driver"
+ depends on I2C
+ select INV_ICM45600
+ select REGMAP_I2C
+ help
+ This driver supports the InvenSense ICM-456xx motion tracking
+ devices over I2C.
+ Supported devices:
+ - ICM-45605
+ - ICM-45606
+ - ICM-45608
+ - ICM-45634
+ - ICM-45686
+ - ICM-45687
+ - ICM-45688-P
+ - ICM-45689
+
+ This driver can be built as a module. The module will be called
+ inv-icm45600-i2c.
diff --git a/drivers/iio/imu/inv_icm45600/Makefile b/drivers/iio/imu/inv_icm45600/Makefile
index ced5e1d9f2c10400cfa4878146672d41f815c22a..371585e29e92e78a30c7d40c1389548fa22a999a 100644
--- a/drivers/iio/imu/inv_icm45600/Makefile
+++ b/drivers/iio/imu/inv_icm45600/Makefile
@@ -5,3 +5,6 @@ inv-icm45600-y += inv_icm45600_core.o
inv-icm45600-y += inv_icm45600_buffer.o
inv-icm45600-y += inv_icm45600_accel.o
inv-icm45600-y += inv_icm45600_gyro.o
+
+obj-$(CONFIG_INV_ICM45600_I2C) += inv-icm45600-i2c.o
+inv-icm45600-i2c-y += inv_icm45600_i2c.o
\ No newline at end of file
diff --git a/drivers/iio/imu/inv_icm45600/inv_icm45600_i2c.c b/drivers/iio/imu/inv_icm45600/inv_icm45600_i2c.c
new file mode 100644
index 0000000000000000000000000000000000000000..5ebc18121a11f8ad576efb4d4cf80091c13af31d
--- /dev/null
+++ b/drivers/iio/imu/inv_icm45600/inv_icm45600_i2c.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Copyright (C) 2025 InvenSense, Inc. */
+
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/regmap.h>
+
+#include "inv_icm45600.h"
+
+static const struct regmap_config inv_icm45600_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int inv_icm45600_probe(struct i2c_client *client)
+{
+ const struct inv_icm45600_chip_info *chip_info;
+ struct regmap *regmap;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_I2C_BLOCK))
+ return -ENODEV;
+
+ chip_info = device_get_match_data(&client->dev);
+ if (!chip_info)
+ return -ENODEV;
+
+ regmap = devm_regmap_init_i2c(client, &inv_icm45600_regmap_config);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ return inv_icm45600_core_probe(regmap, chip_info, true, NULL);
+}
+
+/*
+ * The device id table is used to identify which device is
+ * supported by this driver.
+ */
+static const struct i2c_device_id inv_icm45600_id[] = {
+ { "icm45605", (kernel_ulong_t)&inv_icm45605_chip_info },
+ { "icm45606", (kernel_ulong_t)&inv_icm45606_chip_info },
+ { "icm45608", (kernel_ulong_t)&inv_icm45608_chip_info },
+ { "icm45634", (kernel_ulong_t)&inv_icm45634_chip_info },
+ { "icm45686", (kernel_ulong_t)&inv_icm45686_chip_info },
+ { "icm45687", (kernel_ulong_t)&inv_icm45687_chip_info },
+ { "icm45688p", (kernel_ulong_t)&inv_icm45688p_chip_info },
+ { "icm45689", (kernel_ulong_t)&inv_icm45689_chip_info },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, inv_icm45600_id);
+
+static const struct of_device_id inv_icm45600_of_matches[] = {
+ {
+ .compatible = "invensense,icm45605",
+ .data = &inv_icm45605_chip_info,
+ }, {
+ .compatible = "invensense,icm45606",
+ .data = &inv_icm45606_chip_info,
+ }, {
+ .compatible = "invensense,icm45608",
+ .data = &inv_icm45608_chip_info,
+ }, {
+ .compatible = "invensense,icm45634",
+ .data = &inv_icm45634_chip_info,
+ }, {
+ .compatible = "invensense,icm45686",
+ .data = &inv_icm45686_chip_info,
+ }, {
+ .compatible = "invensense,icm45687",
+ .data = &inv_icm45687_chip_info,
+ }, {
+ .compatible = "invensense,icm45688p",
+ .data = &inv_icm45688p_chip_info,
+ }, {
+ .compatible = "invensense,icm45689",
+ .data = &inv_icm45689_chip_info,
+ },
+ { }
+};
+MODULE_DEVICE_TABLE(of, inv_icm45600_of_matches);
+
+static struct i2c_driver inv_icm45600_driver = {
+ .driver = {
+ .name = "inv-icm45600-i2c",
+ .of_match_table = inv_icm45600_of_matches,
+ .pm = pm_ptr(&inv_icm45600_pm_ops),
+ },
+ .id_table = inv_icm45600_id,
+ .probe = inv_icm45600_probe,
+};
+module_i2c_driver(inv_icm45600_driver);
+
+MODULE_AUTHOR("InvenSense, Inc.");
+MODULE_DESCRIPTION("InvenSense ICM-456xx I2C driver");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS("IIO_ICM45600");
--
2.34.1Hi Remi,
kernel test robot noticed the following build warnings:
url: https://github.com/intel-lab-lkp/linux/commits/Remi-Buisson-via-B4-Relay/dt-bindings-iio-imu-Add-inv_icm45600/20250710-170143
base: f8f559752d573a051a984adda8d2d1464f92f954
patch link: https://lore.kernel.org/r/20250710-add_newport_driver-v2-5-bf76d8142ef2%40tdk.com
patch subject: [PATCH v2 5/8] iio: imu: inv_icm45600: add I2C driver for inv_icm45600 driver
config: s390-randconfig-r073-20250712 (https://download.01.org/0day-ci/archive/20250713/202507130115.7g0XWB2E-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project 01c97b4953e87ae455bd4c41e3de3f0f0f29c61c)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
| Closes: https://lore.kernel.org/r/202507130115.7g0XWB2E-lkp@intel.com/
smatch warnings:
drivers/iio/imu/inv_icm45600/inv_icm45600_gyro.c:121 inv_icm45600_gyro_update_scan_mode() error: uninitialized symbol 'sleep'.
drivers/iio/imu/inv_icm45600/inv_icm45600_accel.c:123 inv_icm45600_accel_update_scan_mode() error: uninitialized symbol 'sleep'.
vim +/sleep +121 drivers/iio/imu/inv_icm45600/inv_icm45600_gyro.c
1fb5c2bf7348d0 Remi Buisson 2025-07-10 93 static int inv_icm45600_gyro_update_scan_mode(struct iio_dev *indio_dev,
1fb5c2bf7348d0 Remi Buisson 2025-07-10 94 const unsigned long *scan_mask)
1fb5c2bf7348d0 Remi Buisson 2025-07-10 95 {
1fb5c2bf7348d0 Remi Buisson 2025-07-10 96 struct inv_icm45600_state *st = iio_device_get_drvdata(indio_dev);
1fb5c2bf7348d0 Remi Buisson 2025-07-10 97 struct inv_icm45600_sensor_state *gyro_st = iio_priv(indio_dev);
1fb5c2bf7348d0 Remi Buisson 2025-07-10 98 struct inv_icm45600_sensor_conf conf = INV_ICM45600_SENSOR_CONF_INIT;
1fb5c2bf7348d0 Remi Buisson 2025-07-10 99 unsigned int fifo_en = 0;
1fb5c2bf7348d0 Remi Buisson 2025-07-10 100 unsigned int sleep;
1fb5c2bf7348d0 Remi Buisson 2025-07-10 101 int ret;
1fb5c2bf7348d0 Remi Buisson 2025-07-10 102
1fb5c2bf7348d0 Remi Buisson 2025-07-10 103 scoped_guard(mutex, &st->lock) {
1fb5c2bf7348d0 Remi Buisson 2025-07-10 104 if (*scan_mask & BIT(INV_ICM45600_GYRO_SCAN_TEMP))
1fb5c2bf7348d0 Remi Buisson 2025-07-10 105 fifo_en |= INV_ICM45600_SENSOR_TEMP;
1fb5c2bf7348d0 Remi Buisson 2025-07-10 106
1fb5c2bf7348d0 Remi Buisson 2025-07-10 107 if (*scan_mask & (BIT(INV_ICM45600_GYRO_SCAN_X) |
1fb5c2bf7348d0 Remi Buisson 2025-07-10 108 BIT(INV_ICM45600_GYRO_SCAN_Y) |
1fb5c2bf7348d0 Remi Buisson 2025-07-10 109 BIT(INV_ICM45600_GYRO_SCAN_Z))) {
1fb5c2bf7348d0 Remi Buisson 2025-07-10 110 /* enable gyro sensor */
1fb5c2bf7348d0 Remi Buisson 2025-07-10 111 conf.mode = gyro_st->power_mode;
1fb5c2bf7348d0 Remi Buisson 2025-07-10 112 ret = inv_icm45600_set_gyro_conf(st, &conf, &sleep);
sleep isn't necessarily set if nothing changed.
1fb5c2bf7348d0 Remi Buisson 2025-07-10 113 if (ret)
1fb5c2bf7348d0 Remi Buisson 2025-07-10 114 return ret;
1fb5c2bf7348d0 Remi Buisson 2025-07-10 115 fifo_en |= INV_ICM45600_SENSOR_GYRO;
1fb5c2bf7348d0 Remi Buisson 2025-07-10 116 }
1fb5c2bf7348d0 Remi Buisson 2025-07-10 117 /* update data FIFO write */
1fb5c2bf7348d0 Remi Buisson 2025-07-10 118 ret = inv_icm45600_buffer_set_fifo_en(st, fifo_en | st->fifo.en);
1fb5c2bf7348d0 Remi Buisson 2025-07-10 119 }
1fb5c2bf7348d0 Remi Buisson 2025-07-10 120 /* sleep required time */
1fb5c2bf7348d0 Remi Buisson 2025-07-10 @121 if (sleep)
1fb5c2bf7348d0 Remi Buisson 2025-07-10 122 msleep(sleep);
1fb5c2bf7348d0 Remi Buisson 2025-07-10 123
1fb5c2bf7348d0 Remi Buisson 2025-07-10 124 return ret;
1fb5c2bf7348d0 Remi Buisson 2025-07-10 125 }
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
On Mon, Jul 14, 2025 at 11:21:17PM +0300, Dan Carpenter wrote:
> Hi Remi,
>
> kernel test robot noticed the following build warnings:
It looks like a false positive, but the code is fragile.
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 99 unsigned int fifo_en = 0;
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 100 unsigned int sleep;
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 101 int ret;
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 102
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 103 scoped_guard(mutex, &st->lock) {
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 104 if (*scan_mask & BIT(INV_ICM45600_GYRO_SCAN_TEMP))
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 105 fifo_en |= INV_ICM45600_SENSOR_TEMP;
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 106
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 107 if (*scan_mask & (BIT(INV_ICM45600_GYRO_SCAN_X) |
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 108 BIT(INV_ICM45600_GYRO_SCAN_Y) |
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 109 BIT(INV_ICM45600_GYRO_SCAN_Z))) {
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 110 /* enable gyro sensor */
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 111 conf.mode = gyro_st->power_mode;
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 112 ret = inv_icm45600_set_gyro_conf(st, &conf, &sleep);
>
> sleep isn't necessarily set if nothing changed.
>
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 113 if (ret)
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 114 return ret;
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 115 fifo_en |= INV_ICM45600_SENSOR_GYRO;
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 116 }
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 117 /* update data FIFO write */
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 118 ret = inv_icm45600_buffer_set_fifo_en(st, fifo_en | st->fifo.en);
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 119 }
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 120 /* sleep required time */
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 @121 if (sleep)
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 122 msleep(sleep);
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 123
> 1fb5c2bf7348d0 Remi Buisson 2025-07-10 124 return ret;
--
With Best Regards,
Andy Shevchenko
Hi Remi,
kernel test robot noticed the following build warnings:
[auto build test WARNING on f8f559752d573a051a984adda8d2d1464f92f954]
url: https://github.com/intel-lab-lkp/linux/commits/Remi-Buisson-via-B4-Relay/dt-bindings-iio-imu-Add-inv_icm45600/20250710-170143
base: f8f559752d573a051a984adda8d2d1464f92f954
patch link: https://lore.kernel.org/r/20250710-add_newport_driver-v2-5-bf76d8142ef2%40tdk.com
patch subject: [PATCH v2 5/8] iio: imu: inv_icm45600: add I2C driver for inv_icm45600 driver
config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20250711/202507111539.F4FrQltx-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250711/202507111539.F4FrQltx-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507111539.F4FrQltx-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/iio/imu/inv_icm45600/inv_icm45600_core.c:894:12: warning: 'inv_icm45600_runtime_resume' defined but not used [-Wunused-function]
894 | static int inv_icm45600_runtime_resume(struct device *dev)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/iio/imu/inv_icm45600/inv_icm45600_core.c:875:12: warning: 'inv_icm45600_runtime_suspend' defined but not used [-Wunused-function]
875 | static int inv_icm45600_runtime_suspend(struct device *dev)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/iio/imu/inv_icm45600/inv_icm45600_core.c:832:12: warning: 'inv_icm45600_resume' defined but not used [-Wunused-function]
832 | static int inv_icm45600_resume(struct device *dev)
| ^~~~~~~~~~~~~~~~~~~
>> drivers/iio/imu/inv_icm45600/inv_icm45600_core.c:790:12: warning: 'inv_icm45600_suspend' defined but not used [-Wunused-function]
790 | static int inv_icm45600_suspend(struct device *dev)
| ^~~~~~~~~~~~~~~~~~~~
vim +/inv_icm45600_runtime_resume +894 drivers/iio/imu/inv_icm45600/inv_icm45600_core.c
01fd98fed267cd Remi Buisson 2025-07-10 785
01fd98fed267cd Remi Buisson 2025-07-10 786 /*
01fd98fed267cd Remi Buisson 2025-07-10 787 * Suspend saves sensors state and turns everything off.
01fd98fed267cd Remi Buisson 2025-07-10 788 * Check first if runtime suspend has not already done the job.
01fd98fed267cd Remi Buisson 2025-07-10 789 */
01fd98fed267cd Remi Buisson 2025-07-10 @790 static int inv_icm45600_suspend(struct device *dev)
01fd98fed267cd Remi Buisson 2025-07-10 791 {
01fd98fed267cd Remi Buisson 2025-07-10 792 struct inv_icm45600_state *st = dev_get_drvdata(dev);
01fd98fed267cd Remi Buisson 2025-07-10 793 int ret;
01fd98fed267cd Remi Buisson 2025-07-10 794
01fd98fed267cd Remi Buisson 2025-07-10 795 guard(mutex)(&st->lock);
01fd98fed267cd Remi Buisson 2025-07-10 796
01fd98fed267cd Remi Buisson 2025-07-10 797 st->suspended.gyro = st->conf.gyro.mode;
01fd98fed267cd Remi Buisson 2025-07-10 798 st->suspended.accel = st->conf.accel.mode;
01fd98fed267cd Remi Buisson 2025-07-10 799 if (pm_runtime_suspended(dev))
01fd98fed267cd Remi Buisson 2025-07-10 800 return 0;
01fd98fed267cd Remi Buisson 2025-07-10 801
eaedaea6990c59 Remi Buisson 2025-07-10 802 /* Disable FIFO data streaming. */
eaedaea6990c59 Remi Buisson 2025-07-10 803 if (st->fifo.on) {
eaedaea6990c59 Remi Buisson 2025-07-10 804 unsigned int val;
eaedaea6990c59 Remi Buisson 2025-07-10 805
eaedaea6990c59 Remi Buisson 2025-07-10 806 ret = regmap_clear_bits(st->map, INV_ICM45600_REG_FIFO_CONFIG3,
eaedaea6990c59 Remi Buisson 2025-07-10 807 INV_ICM45600_FIFO_CONFIG3_IF_EN);
eaedaea6990c59 Remi Buisson 2025-07-10 808 if (ret)
eaedaea6990c59 Remi Buisson 2025-07-10 809 return ret;
eaedaea6990c59 Remi Buisson 2025-07-10 810 val = FIELD_PREP(INV_ICM45600_FIFO_CONFIG0_MODE_MASK,
eaedaea6990c59 Remi Buisson 2025-07-10 811 INV_ICM45600_FIFO_CONFIG0_MODE_BYPASS);
eaedaea6990c59 Remi Buisson 2025-07-10 812 ret = regmap_update_bits(st->map, INV_ICM45600_REG_FIFO_CONFIG0,
eaedaea6990c59 Remi Buisson 2025-07-10 813 INV_ICM45600_FIFO_CONFIG0_MODE_MASK, val);
eaedaea6990c59 Remi Buisson 2025-07-10 814 if (ret)
eaedaea6990c59 Remi Buisson 2025-07-10 815 return ret;
eaedaea6990c59 Remi Buisson 2025-07-10 816 }
eaedaea6990c59 Remi Buisson 2025-07-10 817
01fd98fed267cd Remi Buisson 2025-07-10 818 ret = inv_icm45600_set_pwr_mgmt0(st, INV_ICM45600_SENSOR_MODE_OFF,
01fd98fed267cd Remi Buisson 2025-07-10 819 INV_ICM45600_SENSOR_MODE_OFF, NULL);
01fd98fed267cd Remi Buisson 2025-07-10 820 if (ret)
01fd98fed267cd Remi Buisson 2025-07-10 821 return ret;
01fd98fed267cd Remi Buisson 2025-07-10 822
01fd98fed267cd Remi Buisson 2025-07-10 823 regulator_disable(st->vddio_supply);
01fd98fed267cd Remi Buisson 2025-07-10 824
01fd98fed267cd Remi Buisson 2025-07-10 825 return 0;
01fd98fed267cd Remi Buisson 2025-07-10 826 }
01fd98fed267cd Remi Buisson 2025-07-10 827
01fd98fed267cd Remi Buisson 2025-07-10 828 /*
01fd98fed267cd Remi Buisson 2025-07-10 829 * System resume gets the system back on and restores the sensors state.
01fd98fed267cd Remi Buisson 2025-07-10 830 * Manually put runtime power management in system active state.
01fd98fed267cd Remi Buisson 2025-07-10 831 */
01fd98fed267cd Remi Buisson 2025-07-10 @832 static int inv_icm45600_resume(struct device *dev)
01fd98fed267cd Remi Buisson 2025-07-10 833 {
01fd98fed267cd Remi Buisson 2025-07-10 834 struct inv_icm45600_state *st = dev_get_drvdata(dev);
eaedaea6990c59 Remi Buisson 2025-07-10 835 struct inv_icm45600_sensor_state *gyro_st = iio_priv(st->indio_gyro);
eaedaea6990c59 Remi Buisson 2025-07-10 836 struct inv_icm45600_sensor_state *accel_st = iio_priv(st->indio_accel);
01fd98fed267cd Remi Buisson 2025-07-10 837 int ret;
01fd98fed267cd Remi Buisson 2025-07-10 838
01fd98fed267cd Remi Buisson 2025-07-10 839 guard(mutex)(&st->lock);
01fd98fed267cd Remi Buisson 2025-07-10 840
01fd98fed267cd Remi Buisson 2025-07-10 841 ret = inv_icm45600_enable_regulator_vddio(st);
01fd98fed267cd Remi Buisson 2025-07-10 842 if (ret)
01fd98fed267cd Remi Buisson 2025-07-10 843 return ret;
01fd98fed267cd Remi Buisson 2025-07-10 844
01fd98fed267cd Remi Buisson 2025-07-10 845 pm_runtime_disable(dev);
01fd98fed267cd Remi Buisson 2025-07-10 846 pm_runtime_set_active(dev);
01fd98fed267cd Remi Buisson 2025-07-10 847 pm_runtime_enable(dev);
01fd98fed267cd Remi Buisson 2025-07-10 848
01fd98fed267cd Remi Buisson 2025-07-10 849 /* Restore sensors state. */
eaedaea6990c59 Remi Buisson 2025-07-10 850 ret = inv_icm45600_set_pwr_mgmt0(st, st->suspended.gyro,
01fd98fed267cd Remi Buisson 2025-07-10 851 st->suspended.accel, NULL);
eaedaea6990c59 Remi Buisson 2025-07-10 852 if (ret)
eaedaea6990c59 Remi Buisson 2025-07-10 853 return ret;
01fd98fed267cd Remi Buisson 2025-07-10 854
eaedaea6990c59 Remi Buisson 2025-07-10 855 /* Restore FIFO data streaming. */
eaedaea6990c59 Remi Buisson 2025-07-10 856 if (st->fifo.on) {
eaedaea6990c59 Remi Buisson 2025-07-10 857 unsigned int val;
eaedaea6990c59 Remi Buisson 2025-07-10 858
eaedaea6990c59 Remi Buisson 2025-07-10 859 inv_sensors_timestamp_reset(&gyro_st->ts);
eaedaea6990c59 Remi Buisson 2025-07-10 860 inv_sensors_timestamp_reset(&accel_st->ts);
eaedaea6990c59 Remi Buisson 2025-07-10 861 val = FIELD_PREP(INV_ICM45600_FIFO_CONFIG0_MODE_MASK,
eaedaea6990c59 Remi Buisson 2025-07-10 862 INV_ICM45600_FIFO_CONFIG0_MODE_STREAM);
eaedaea6990c59 Remi Buisson 2025-07-10 863 ret = regmap_update_bits(st->map, INV_ICM45600_REG_FIFO_CONFIG0,
eaedaea6990c59 Remi Buisson 2025-07-10 864 INV_ICM45600_FIFO_CONFIG0_MODE_MASK, val);
eaedaea6990c59 Remi Buisson 2025-07-10 865 if (ret)
eaedaea6990c59 Remi Buisson 2025-07-10 866 return ret;
eaedaea6990c59 Remi Buisson 2025-07-10 867 ret = regmap_set_bits(st->map, INV_ICM45600_REG_FIFO_CONFIG3,
eaedaea6990c59 Remi Buisson 2025-07-10 868 INV_ICM45600_FIFO_CONFIG3_IF_EN);
eaedaea6990c59 Remi Buisson 2025-07-10 869 }
eaedaea6990c59 Remi Buisson 2025-07-10 870
eaedaea6990c59 Remi Buisson 2025-07-10 871 return ret;
01fd98fed267cd Remi Buisson 2025-07-10 872 }
01fd98fed267cd Remi Buisson 2025-07-10 873
01fd98fed267cd Remi Buisson 2025-07-10 874 /* Runtime suspend will turn off sensors that are enabled by iio devices. */
01fd98fed267cd Remi Buisson 2025-07-10 @875 static int inv_icm45600_runtime_suspend(struct device *dev)
01fd98fed267cd Remi Buisson 2025-07-10 876 {
01fd98fed267cd Remi Buisson 2025-07-10 877 struct inv_icm45600_state *st = dev_get_drvdata(dev);
01fd98fed267cd Remi Buisson 2025-07-10 878 int ret;
01fd98fed267cd Remi Buisson 2025-07-10 879
01fd98fed267cd Remi Buisson 2025-07-10 880 guard(mutex)(&st->lock);
01fd98fed267cd Remi Buisson 2025-07-10 881
01fd98fed267cd Remi Buisson 2025-07-10 882 /* disable all sensors */
01fd98fed267cd Remi Buisson 2025-07-10 883 ret = inv_icm45600_set_pwr_mgmt0(st, INV_ICM45600_SENSOR_MODE_OFF,
01fd98fed267cd Remi Buisson 2025-07-10 884 INV_ICM45600_SENSOR_MODE_OFF, NULL);
01fd98fed267cd Remi Buisson 2025-07-10 885 if (ret)
01fd98fed267cd Remi Buisson 2025-07-10 886 return ret;
01fd98fed267cd Remi Buisson 2025-07-10 887
01fd98fed267cd Remi Buisson 2025-07-10 888 regulator_disable(st->vddio_supply);
01fd98fed267cd Remi Buisson 2025-07-10 889
01fd98fed267cd Remi Buisson 2025-07-10 890 return 0;
01fd98fed267cd Remi Buisson 2025-07-10 891 }
01fd98fed267cd Remi Buisson 2025-07-10 892
01fd98fed267cd Remi Buisson 2025-07-10 893 /* Sensors are enabled by iio devices, no need to turn them back on here. */
01fd98fed267cd Remi Buisson 2025-07-10 @894 static int inv_icm45600_runtime_resume(struct device *dev)
01fd98fed267cd Remi Buisson 2025-07-10 895 {
01fd98fed267cd Remi Buisson 2025-07-10 896 struct inv_icm45600_state *st = dev_get_drvdata(dev);
01fd98fed267cd Remi Buisson 2025-07-10 897
01fd98fed267cd Remi Buisson 2025-07-10 898 guard(mutex)(&st->lock);
01fd98fed267cd Remi Buisson 2025-07-10 899
01fd98fed267cd Remi Buisson 2025-07-10 900 return inv_icm45600_enable_regulator_vddio(st);
01fd98fed267cd Remi Buisson 2025-07-10 901 }
01fd98fed267cd Remi Buisson 2025-07-10 902
--
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