linux-kernel - Re: [PATCH v4 1/7] dt-bindings: clock: Add StarFive JH7110 PLL clock generator

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Message-ID: <20230602225621.GC27915@lst.de>
Date:   Sat, 3 Jun 2023 00:56:21 +0200
From:   Torsten Duwe <duwe@....de>
To:     Conor Dooley <conor@...nel.org>
Cc:     Xingyu Wu <xingyu.wu@...rfivetech.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        yanhong.wang@...rfivetech.com,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Emil Renner Berthing <kernel@...il.dk>,
        Rob Herring <robh+dt@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Hal Feng <hal.feng@...rfivetech.com>,
        William Qiu <william.qiu@...rfivetech.com>,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org
Subject: Re: [PATCH v4 1/7] dt-bindings: clock: Add StarFive JH7110 PLL
 clock generator

On Fri, Jun 02, 2023 at 05:59:29PM +0100, Conor Dooley wrote:
> On Fri, Jun 02, 2023 at 06:57:13PM +0200, Torsten Duwe wrote:
> > On Fri, Jun 02, 2023 at 05:43:25PM +0100, Conor Dooley wrote:
> > > > 
> > > > Can you _please_ point me at that "PLL driver" "in Linux" ?
> > > 
> > > It's patch 2 in this series:
> > > https://lore.kernel.org/linux-riscv/20230512022036.97987-1-xingyu.wu@starfivetech.com/T/#m4b2d74c36b3bb961a1187ec5cda1a0a0de875f0e
> > > 
> > Unfortunately, it's not, AFAICS. I'm looking for the driver that
> > will control the PLLs' parameters, grepping for "pll" should yield
> > results, to start with. The thing should act on the SYS_SYSCON iomem,
> > at 0x13030000. Ideally, a DT node should point it there...
> 
> The driver binds against a child node of the syscon @ 1303_0000:
> https://lore.kernel.org/linux-riscv/20230512022036.97987-1-xingyu.wu@starfivetech.com/T/#m882de9210850eb6f871cafc3418f3202ba915de8
> 
> Am I missing something?

No, you're right. Seems I took a wrong turn somewhere. I prefer
patchwork, where available, and probably got into the wrong series.
Found the correct one:

https://patchwork.kernel.org/project/linux-riscv/patch/20230512022036.97987-3-xingyu.wu@starfivetech.com/

Now only the device tree needs to match against that, and U-Boot
needs to remain still functional...

Thanks and sorry for the noise.

	Torsten