[PATCH v3 4/5] hwmon: tmp108: Add support for I3C device
Guenter Roeck
linux at roeck-us.net
Mon Nov 11 10:04:13 PST 2024
On 11/11/24 09:32, Frank Li wrote:
> Add support for I3C device in the tmp108 driver to handle the P3T1085
> sensor. Register the I3C device driver to enable I3C functionality for the
> sensor.
>
> Signed-off-by: Frank Li <Frank.Li at nxp.com>
> ---
> change from v2 to v3
> - change kconfig to select REGMAP_I3C if enable i3c
> - remove i3c/master.h
> - remove , after {}
> - use #ifdef CONFIG_I3C about i3c register code
>
> I2C I3C
> Y Y support both
> Y N i3c part code will not be compiled
> N Y whole TPM108 will not be compiled
> N N whole TPM108 will not be compiled
> ---
> drivers/hwmon/Kconfig | 1 +
> drivers/hwmon/tmp108.c | 31 +++++++++++++++++++++++++++++++
> 2 files changed, 32 insertions(+)
>
> diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
> index d43ca7aa4a548..9579db7849e1f 100644
> --- a/drivers/hwmon/Kconfig
> +++ b/drivers/hwmon/Kconfig
> @@ -2298,6 +2298,7 @@ config SENSORS_TMP108
> tristate "Texas Instruments TMP108"
> depends on I2C
> select REGMAP_I2C
> + select REGMAP_I3C if I3C
> help
> If you say yes here you get support for Texas Instruments TMP108
> sensor chips and NXP P3T1085.
> diff --git a/drivers/hwmon/tmp108.c b/drivers/hwmon/tmp108.c
> index bfbea6349a95f..deb1505321335 100644
> --- a/drivers/hwmon/tmp108.c
> +++ b/drivers/hwmon/tmp108.c
> @@ -13,6 +13,7 @@
> #include <linux/mutex.h>
> #include <linux/of.h>
> #include <linux/i2c.h>
> +#include <linux/i3c/device.h>
> #include <linux/init.h>
> #include <linux/jiffies.h>
> #include <linux/regmap.h>
> @@ -442,6 +443,36 @@ static struct i2c_driver tmp108_driver = {
>
> module_i2c_driver(tmp108_driver);
>
> +#ifdef CONFIG_I3C
> +static const struct i3c_device_id p3t1085_i3c_ids[] = {
> + I3C_DEVICE(0x011b, 0x1529, NULL),
> + {}
> +};
> +MODULE_DEVICE_TABLE(i3c, p3t1085_i3c_ids);
> +
> +static int p3t1085_i3c_probe(struct i3c_device *i3cdev)
> +{
> + struct device *dev = i3cdev_to_dev(i3cdev);
> + struct regmap *regmap;
> +
> + regmap = devm_regmap_init_i3c(i3cdev, &tmp108_regmap_config);
> + if (IS_ERR(regmap))
> + return dev_err_probe(dev, PTR_ERR(regmap),
> + "Failed to register i3c regmap\n");
> +
> + return tmp108_common_probe(dev, regmap, "p3t1085_i3c");
> +}
> +
> +static struct i3c_driver p3t1085_driver = {
> + .driver = {
> + .name = "p3t1085_i3c",
> + },
> + .probe = p3t1085_i3c_probe,
> + .id_table = p3t1085_i3c_ids,
> +};
> +module_i3c_driver(p3t1085_driver);
> +#endif
While looking at i3c code, I found module_i3c_i2c_driver(). Can we use
that function to register both i2c and i3c in one call ?
Thanks,
Guenter
More information about the linux-arm-kernel
mailing list