linux-kernel - RE: [PATCH] RISC-V: Enable SYSCON reboot and poweroff drivers

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Date:   Mon, 11 Nov 2019 16:51:30 +0000
From:   Anup Patel <Anup.Patel@....com>
To:     Andreas Schwab <schwab@...e.de>
CC:     Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Atish Patra <Atish.Patra@....com>,
        Alistair Francis <Alistair.Francis@....com>,
        Christoph Hellwig <hch@....de>,
        Anup Patel <anup@...infault.org>,
        "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] RISC-V: Enable SYSCON reboot and poweroff drivers



> -----Original Message-----
> From: Andreas Schwab <schwab@...e.de>
> Sent: Monday, November 11, 2019 8:02 PM
> To: Anup Patel <Anup.Patel@....com>
> Cc: Palmer Dabbelt <palmer@...belt.com>; Paul Walmsley
> <paul.walmsley@...ive.com>; Atish Patra <Atish.Patra@....com>; Alistair
> Francis <Alistair.Francis@....com>; Christoph Hellwig <hch@....de>; Anup
> Patel <anup@...infault.org>; linux-riscv@...ts.infradead.org; linux-
> kernel@...r.kernel.org
> Subject: Re: [PATCH] RISC-V: Enable SYSCON reboot and poweroff drivers
> 
> On Nov 11 2019, Anup Patel wrote:
> 
> >> -----Original Message-----
> >> From: Andreas Schwab <schwab@...e.de>
> >> Sent: Monday, November 11, 2019 7:38 PM
> >> To: Anup Patel <Anup.Patel@....com>
> >> Cc: Palmer Dabbelt <palmer@...ive.com>; Paul Walmsley
> >> <paul.walmsley@...ive.com>; Atish Patra <Atish.Patra@....com>;
> >> Alistair Francis <Alistair.Francis@....com>; Christoph Hellwig
> >> <hch@....de>; Anup Patel <anup@...infault.org>;
> >> linux-riscv@...ts.infradead.org; linux- kernel@...r.kernel.org
> >> Subject: Re: [PATCH] RISC-V: Enable SYSCON reboot and poweroff
> >> drivers
> >>
> >> On Nov 11 2019, Anup Patel wrote:
> >>
> >> > We can use SYSCON reboot and poweroff drivers for the SiFive test
> >> > device found on QEMU virt machine and SiFive SOCs.
> >>
> >> I don't see any syscon-reboot compatible in the device tree.
> >
> > I have sent patch to QEMU as well for generating SYSCON DT nodes.
> 
> What about the kernel DT?

For QEMU virt machine, the DT is generated by QEMU at runtime
so we don't need an explicit DT file in Linux sources.

Regards,
Anup