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On some Aspeed-based machines, multiple I2C controllers may exist across different components, such as the primary SoC and an external IO expander or co-processor (e.g., AST1700). Using the current static naming convention results in object name conflicts when multiple controllers attempt to instantiate buses with the same ID. This patch introduces a 'bus-label' property for the Aspeed I2C controller. This allows higher-level layers, such as the SoC realize function, to provide a unique identifier for the buses. The I2C bus object name is then constructed using this label (e.g., "ioexp0.0" instead of the default "aspeed.i2c.bus.0"). This enhancement ensures unique bus identifiers across the system and resolves naming conflicts in multi-controller configurations. Signed-off-by: Kane-Chen-AS <kane_chen@aspeedtech.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Tested-by: Nabih Estefan <nabihestefan@google.com> Reviewed-by: Nabih Estefan <nabihestefan@google.com> Link: https://lore.kernel.org/qemu-devel/20260112083054.4151945-2-kane_chen@aspeedtech.com Signed-off-by: Cédric Le Goater <clg@redhat.com>