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Message-ID: <Y3ppF88SuYAPOjbU@spud>
Date: Sun, 20 Nov 2022 17:51:19 +0000
From: Conor Dooley <conor@...nel.org>
To: Emil Renner Berthing <emil.renner.berthing@...onical.com>
Cc: Jisheng Zhang <jszhang@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Jiri Slaby <jirislaby@...nel.org>,
linux-serial@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH 5/7] riscv: dts: bouffalolab: add the bl808 SoC base
device tree
On Sun, Nov 20, 2022 at 03:57:17PM +0100, Emil Renner Berthing wrote:
> On Sun, 20 Nov 2022 at 09:32, Jisheng Zhang <jszhang@...nel.org> wrote:
> >
> > Add a baisc dtsi for the bouffalolab bl808 SoC.
> > + xtal: xtal-clk {
> > + compatible = "fixed-clock";
> > + clock-frequency = <40000000>;
>
> This was discussed many times before, but I think the conclusion was
> that the frequency is a property of the crystal on the board, so this
> should be 0 in the SoC dtsi, and then overwritten in the board device
> tree.
Or set nothing in soc.dtsi so that dtbs_check can be used to see if
someone forgot to set a clock for their board?
> > + clock-output-names = "xtal";
> > + #clock-cells = <0>;
> > + };
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