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Date:   Mon, 27 Jun 2022 17:17:00 -0600
From:   Rob Herring <robh@kernel.org>
To:     Conor Dooley <mail@conchuod.ie>
Cc:     David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Thierry Reding <thierry.reding@gmail.com>,
        Sam Ravnborg <sam@ravnborg.org>,
        Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>,
        Vinod Koul <vkoul@kernel.org>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Mark Brown <broonie@kernel.org>,
        Serge Semin <fancer.lancer@gmail.com>,
        Daniel Lezcano <daniel.lezcano@linaro.org>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Palmer Dabbelt <palmer@rivosinc.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Conor Dooley <conor.dooley@microchip.com>,
        Masahiro Yamada <masahiroy@kernel.org>,
        Damien Le Moal <damien.lemoal@opensource.wdc.com>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Niklas Cassel <niklas.cassel@wdc.com>,
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        Heng Sia <jee.heng.sia@intel.com>,
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        linux-riscv@lists.infradead.org
Subject: Re: [PATCH 02/14] dt-bindings: display: panel: allow ilitek,ili9341
 in isolation
Message-ID: <20220627231700.GA3144115-robh@kernel.org>
References: <20220618123035.563070-1-mail@conchuod.ie>
 <20220618123035.563070-3-mail@conchuod.ie>
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On Sat, Jun 18, 2022 at 01:30:24PM +0100, Conor Dooley wrote:
> From: Conor Dooley <conor.dooley@microchip.com>
> 
> The dt-binding for the ilitek,ili9341 does not allow it to be used as a
> compatible in isolation. This generates a warning for the Canaan kd233
> devicetree:
> arch/riscv/boot/dts/canaan/canaan_kd233.dtb: panel@0: compatible:0: 'ilitek,ili9341' is not one of ['st,sf-tc240t-9370-t']
>         From schema: Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
> arch/riscv/boot/dts/canaan/canaan_kd233.dtb: panel@0: compatible: ['ilitek,ili9341'] is too short
>         From schema: Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
> Allow ilitek,ili9341 to be selected in isolation.

Just because you get a warning doesn't mean it is right. ili9341 is a 
panel driver IC, not a complete panel. It needs a more specific 
compatible.

Rob