linux-kernel - Re: [RFC PATCH v2 00/11] clk: imx8mn: setup clocks from the device tree

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Message-ID: <CAOf5uwkMRSc7q1xUv4D=hc4w0HL=+x1_J60yyru_hGSuf5m0bA@mail.gmail.com>
Date:   Thu, 26 Jan 2023 11:49:54 +0100
From:   Michael Nazzareno Trimarchi <michael@...rulasolutions.com>
To:     Stephen Boyd <sboyd@...nel.org>
Cc:     Dario Binacchi <dario.binacchi@...rulasolutions.com>,
        linux-kernel@...r.kernel.org, angelo@...rulasolutions.com,
        tommaso.merciai@...rulasolutions.com,
        Chen-Yu Tsai <wenst@...omium.org>,
        linux-amarula@...rulasolutions.com, anthony@...rulasolutions.com,
        jagan@...rulasolutions.com, Abel Vesa <abelvesa@...nel.org>,
        Adam Ford <aford173@...il.com>,
        Fabio Estevam <festevam@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Li Jun <jun.li@....com>, Lucas Stach <l.stach@...gutronix.de>,
        Marek Vasut <marex@...x.de>,
        Markus Niebel <Markus.Niebel@...tq-group.com>,
        Michael Turquette <mturquette@...libre.com>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org
Subject: Re: [RFC PATCH v2 00/11] clk: imx8mn: setup clocks from the device tree

Hi

On Wed, Jan 25, 2023 at 10:11 PM Stephen Boyd <sboyd@...nel.org> wrote:
>
> Quoting Dario Binacchi (2023-01-01 09:57:29)
> > The idea for this series was born back from Dublin (ELCE 2022) after
> > having attended the talk entitled "Updating and Modernizing Clock
> > Drivers" held by Chen-Yu Tsai and the availability of a board with
> > imx8mn SOC.
>
> Interesting. I didn't see any mention of putting clks into DT in that
> presentation.
>
> >
> > This series aims to setup all imx8mn's clocks from the device tree and
> > remove the legacy setup code with hardwired parameters.
>
> Please, no! We don't want one node per clk style of bindings.

I think the idea behind is:
- create a way from silicon vendor to export their clock mapping with
automatic exportation
- reduce the copy and paste code across the drivers
- avoid code duplication

Is the binding a way to solve this problem? If you don't want one node
per clk style bindings, did you still think that the way
to go is totally wrong?

Michael