i2c-0 i2c AMDGPU SMU 0 I2C adapter i2c-1 i2c AMDGPU SMU 1 I2C adapter i2c-2 i2c AMDGPU DM i2c hw bus 0 I2C adapter i2c-3 i2c AMDGPU DM i2c hw bus 1 I2C adapter i2c-4 i2c AMDGPU DM aux hw bus 0 I2C adapter i2c-5 smbus SMBus I801 adapter at 0000:00:1f.4 SMBus adapter