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Message-ID: <CAMuHMdWSccO3J5OYrFUn+azKyzYBP1wmuHZoRU2t3PUbkZx1wA@mail.gmail.com>
Date:   Mon, 23 May 2022 15:58:31 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Tomer Maimon <tmaimon77@...il.com>,
        Avi Fishman <avifishman70@...il.com>,
        Tali Perry <tali.perry1@...il.com>,
        Joel Stanley <joel@....id.au>,
        Patrick Venture <venture@...gle.com>,
        Nancy Yuen <yuenn@...gle.com>,
        Benjamin Fair <benjaminfair@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Greg KH <gregkh@...uxfoundation.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Olof Johansson <olof@...om.net>,
        Jiri Slaby <jirislaby@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Björn Andersson <bjorn.andersson@...aro.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Vinod <vkoul@...nel.org>, Biju Das <biju.das.jz@...renesas.com>,
        Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@...hiba.co.jp>,
        Robert Hancock <robert.hancock@...ian.com>,
        Jonathan Neuschäfer <j.neuschaefer@....net>,
        Lubomir Rintel <lkundrak@...sk>, arm-soc <soc@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        "open list:SERIAL DRIVERS" <linux-serial@...r.kernel.org>,
        Linux Watchdog Mailing List <linux-watchdog@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v1 17/19] arm64: dts: nuvoton: Add initial NPCM8XX device tree

Hi Krzysztof,

On Mon, May 23, 2022 at 11:08 AM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
> On 22/05/2022 17:50, Tomer Maimon wrote:
> > This adds initial device tree support for the
> > Nuvoton NPCM845 Board Management controller (BMC) SoC family.
>
> Thank you for your patch. There is something to discuss/improve.
>
> > The NPCM845 based quad-core Cortex-A35 ARMv8 architecture and
> > have various peripheral IPs.
> >
> > Signed-off-by: Tomer Maimon <tmaimon77@...il.com>

> > +             l2: l2-cache {
> > +                     compatible = "cache";
>
> Is this a real compatible? What bindings are you using here?

The compatible value and related properties are defined in the
Devicetree Specification, v0.4-rc1, Section 3.9 ("Multi-level and
Shared Cache Nodes (/cpus/cpu*/l?-cache)").

The properties are handled by
dtschema/schemas/cache-controller.yaml, but the latter seems to lack
any checking on the compatible value?

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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