On 27/06/2022 09:15, Chanho Park wrote: > Regarding Exynos Auto v9 SoC, it supports uarts up to 12. However, the > maximum number of the ports has been derived from > CONFIG_SERIAL_SAMSUNG_UARTS and tightly coupled with the config for > previous Samsung SoCs such as s3c24xx and s3c64xx. To overcome this > limitation, this changes the usage of the definition to UART_NR which is > widely used from other serial drivers. This also defines the value to 12 > only for ARM64 SoCs to not affect the change to previous arm32 SoCs. > Instead of enumerating all the ports as predefined arrays, this > introduces s3c24xx_serial_init_port_default that is initializing the > structure as default value. > Regarding the ports which are greater than 4 > will be initialized as default value and the fifo size will be retrieved > from the DT property. You need to explain why you are doing this. It's confusing to initialize some statically and some dynamically. Best regards, Krzysztof