diff options
| -rw-r--r-- | drivers/misc/amd-sbi/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/misc/amd-sbi/rmi-i2c.c | 45 |
2 files changed, 47 insertions, 2 deletions
diff --git a/drivers/misc/amd-sbi/Kconfig b/drivers/misc/amd-sbi/Kconfig index 4aae0733d0fc..acf0450ba220 100644 --- a/drivers/misc/amd-sbi/Kconfig +++ b/drivers/misc/amd-sbi/Kconfig @@ -3,8 +3,10 @@ config AMD_SBRMI_I2C tristate "AMD side band RMI support" depends on I2C select REGMAP_I2C + depends on I3C || !I3C + select REGMAP_I3C if I3C help - Side band RMI over I2C support for AMD out of band management. + Side band RMI over I2C/I3C support for AMD out of band management. This driver can also be built as a module. If so, the module will be called sbrmi-i2c. diff --git a/drivers/misc/amd-sbi/rmi-i2c.c b/drivers/misc/amd-sbi/rmi-i2c.c index d41457a52376..087c57bb0f37 100644 --- a/drivers/misc/amd-sbi/rmi-i2c.c +++ b/drivers/misc/amd-sbi/rmi-i2c.c @@ -9,6 +9,8 @@ #include <linux/delay.h> #include <linux/err.h> #include <linux/i2c.h> +#include <linux/i3c/device.h> +#include <linux/i3c/master.h> #include <linux/init.h> #include <linux/module.h> #include <linux/mutex.h> @@ -135,7 +137,48 @@ static struct i2c_driver sbrmi_driver = { .id_table = sbrmi_id, }; -module_i2c_driver(sbrmi_driver); +static int sbrmi_i3c_probe(struct i3c_device *i3cdev) +{ + struct device *dev = i3cdev_to_dev(i3cdev); + struct regmap *regmap; + + regmap = devm_regmap_init_i3c(i3cdev, &sbrmi_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + /* + * AMD APML I3C devices support static address. + * If static address is defined, dynamic address is same as static address. + * In case static address is not defined, I3C master controller defined + * dynamic address is used. + */ + return sbrmi_common_probe(dev, regmap, i3cdev->desc->info.dyn_addr); +} + +static void sbrmi_i3c_remove(struct i3c_device *i3cdev) +{ + struct sbrmi_data *data = dev_get_drvdata(&i3cdev->dev); + + misc_deregister(&data->sbrmi_misc_dev); +} + +static const struct i3c_device_id sbrmi_i3c_id[] = { + /* PID for AMD SBRMI device */ + I3C_DEVICE_EXTRA_INFO(0x112, 0x0, 0x2, NULL), + {} +}; +MODULE_DEVICE_TABLE(i3c, sbrmi_i3c_id); + +static struct i3c_driver sbrmi_i3c_driver = { + .driver = { + .name = "sbrmi-i3c", + }, + .probe = sbrmi_i3c_probe, + .remove = sbrmi_i3c_remove, + .id_table = sbrmi_i3c_id, +}; + +module_i3c_i2c_driver(sbrmi_i3c_driver, &sbrmi_driver); MODULE_AUTHOR("Akshay Gupta <akshay.gupta@amd.com>"); MODULE_AUTHOR("Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com>"); |