diff --git a/cmd/i2c.c b/cmd/i2c.c index 473153fbd4..3dd7c6ba4d 100644 --- a/cmd/i2c.c +++ b/cmd/i2c.c @@ -151,6 +151,16 @@ static int cmd_i2c_set_bus_num(unsigned int busnum) static int i2c_get_cur_bus(struct udevice **busp) { +#ifdef CONFIG_I2C_SET_DEFAULT_BUS_NUM + if (!i2c_cur_bus) { + if (cmd_i2c_set_bus_num(CONFIG_I2C_DEFAULT_BUS_NUMBER)) { + printf("Default I2C bus %d not found\n", + CONFIG_I2C_DEFAULT_BUS_NUMBER); + return -ENODEV; + } + } +#endif + if (!i2c_cur_bus) { puts("No I2C bus selected\n"); return -ENODEV; diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig index 8ac7aaf2d2..4e9afc120a 100644 --- a/drivers/i2c/Kconfig +++ b/drivers/i2c/Kconfig @@ -49,6 +49,20 @@ config I2C_CROS_EC_LDO avoid duplicating the logic in the TPS65090 regulator driver for enabling/disabling an LDO. +config I2C_SET_DEFAULT_BUS_NUM + bool "Set default I2C bus number" + depends on DM_I2C + help + Set default number of I2C bus to be accessed. This option provides + behaviour similar to old (i.e. pre DM) I2C bus driver. + +config I2C_DEFAULT_BUS_NUMBER + hex "I2C default bus number" + depends on I2C_SET_DEFAULT_BUS_NUM + default 0x0 + help + Number of default I2C bus to use + config DM_I2C_GPIO bool "Enable Driver Model for software emulated I2C bus driver" depends on DM_I2C && DM_GPIO