Re: [PATCH V3 1/2] dt-bindings: update riscv plic compatible string

From: Guo Ren
Date: Thu Oct 14 2021 - 02:17:45 EST


On Thu, Oct 14, 2021 at 12:21 PM Samuel Holland <samuel@xxxxxxxxxxxx> wrote:
>
> On 10/13/21 7:49 AM, Guo Ren wrote:
> >>>>>>>> - const: sifive,plic-1.0.0
> >>>>>>>
> >>>>>>> The PLIC DT node requires two compatible string:
> >>>>>>> <implementation_compat>, <spec_compat>
> >>>>>>>
> >>>>>>> The C9xx PLIC is not RISC-V PLIC so, the DT node should
> >>>>>>> be: "thead,c900-plic", "thead,c9xx-plic"
> >>>>>>>
> >>>>>>> You need to change "- const: sifive,plic-1.0.0" to
> >>>>>>> - enum:
> >>>>>>> - sifive,plic-1.0.0
> >>>>>>> - thead,c9xx-plic
> >>
> >> isn't XuanTie the series containing the c906 and c910?
> > XuanTie contain two CPU series:
> > riscv: c906, c910
> > csky: c807, c810, c860
> >
> >> So maybe
> >> thead,xuantie-plic
> >> for the spec compatible.
> >>
> >> So doing in full
> >> compatible = "thead,c906-plic", "thead,xuantie-plic"
> > How about:
> > compatible = "allwinner,d1-plic", "thead,c900-plic"
>
> To follow the <family>-<soc>-<device> pattern of existing Allwinner
> compatibles, the first string should be "allwinner,sun20i-d1-plic".
Thx, Got it.
> Otherwise, this looks to me like the right thing to do.
>
> Regards,
> Samuel



--
Best Regards
Guo Ren

ML: https://lore.kernel.org/linux-csky/