Re: [PATCH V7 2/2] irqchip/sifive-plic: Fixup thead,c900-plic DT parse missing

From: Guo Ren
Date: Mon Feb 07 2022 - 04:29:29 EST


Hi Marc,

On Wed, Feb 2, 2022 at 12:42 PM Samuel Holland <samuel@xxxxxxxxxxxx> wrote:
>
> On 1/30/22 7:56 AM, guoren@xxxxxxxxxx wrote:
> > From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>
> >
> > The thead,c900-plic has been used in opensbi to distinguish
> > PLIC [1]. Although PLICs have the same behaviors in Linux,
> > they are different hardware with some custom initializing in
> > firmware(opensbi).
> >
> > Qute opensbi patch commit-msg by Samuel:
> >
> > The T-HEAD PLIC implementation requires setting a delegation bit
> > to allow access from S-mode. Now that the T-HEAD PLIC has its own
> > compatible string, set this bit automatically from the PLIC driver,
> > instead of reaching into the PLIC's MMIO space from another driver.
> >
> > [1]: https://github.com/riscv-software-src/opensbi/commit/78c2b19218bd62653b9fb31623a42ced45f38ea6
> >
> > Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>
> > Cc: Anup Patel <anup@xxxxxxxxxxxxxx>
> > Cc: Marc Zyngier <maz@xxxxxxxxxx>
> > Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
> > Cc: Samuel Holland <samuel@xxxxxxxxxxxx>
> > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> > ---
> > drivers/irqchip/irq-sifive-plic.c | 1 +
> > 1 file changed, 1 insertion(+)
>
> Tested-by: Samuel Holland <samuel@xxxxxxxxxxxx>

ping... gently. Any problem with the above patch?

--
Best Regards
Guo Ren

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