Hi, Mika, On Thu, Sep 22, 2022 at 8:23 PM Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> wrote: > > Hi, > > On Thu, Sep 22, 2022 at 07:39:54PM +0800, Binbin Zhou wrote: > > Under LoongARCH based on ACPI(such as Loongson-3A + LS7A), the ls2x i2c > > driver obtains the i2c bus number from ACPI table. > > Why this is needed? The I2CSerialBusV2() resource should be enough to > identify the adapter, and I don't see why static number would be needed > for anything? > In later patches we will add LS7A i2c driver, this driver is shared by MIPS-based Loongson-3A4000 system (use FDT) and LoongArch-based Loongson-3A5000 system (use ACPI). FDT systems support static bus numbers, so we want to do the same thing on ACPI systems. I think keep this consistency can make user feel better Huacai
