linux-kernel - Re: [PATCH v2 3/3] arm64: dts: ti: add verdin am62 mallow board

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Message-ID: <20231204181336.scm2fgfyyzpr2u7t@dimmer>
Date:   Mon, 4 Dec 2023 12:13:36 -0600
From:   Nishanth Menon <nm@...com>
To:     Francesco Dolcini <francesco@...cini.it>
CC:     Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Joao Paulo Goncalves <joao.goncalves@...adex.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Francesco Dolcini <francesco.dolcini@...adex.com>
Subject: Re: [PATCH v2 3/3] arm64: dts: ti: add verdin am62 mallow board

On 15:55-20231201, Francesco Dolcini wrote:
> From: Joao Paulo Goncalves <joao.goncalves@...adex.com>

[...]

> +
> +	tpm@1 {
> +		compatible = "infineon,slb9670", "tcg,tpm_tis-spi";

arch/arm64/boot/dts/ti/k3-am625-verdin-nonwifi-mallow.dtb: /bus@...00/spi@...10000/tpm@1: failed to match any schema with compatible: ['infineon,slb9670', 'tcg,tpm_tis-spi']
arch/arm64/boot/dts/ti/k3-am625-verdin-wifi-mallow.dtb: /bus@...00/spi@...10000/tpm@1: failed to match any schema with compatible: ['infineon,slb9670', 'tcg,tpm_tis-spi']

We should either drop this node OR introduce bindings and later
introduce this series.

Yes, I know there are other places where the compatible is already used
arch/arm64/boot/dts/freescale/imx8mm-phyboard-polis-rdk.dts
arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
etc.. But, unfortunately, I'd rather see the binding
Documentation/devicetree/bindings/security/tpm/tpm_tis_spi.txt
transition over to yaml prior to picking things up. (NOTE: the same
rules apply to TI devs as well..)

> +		reg = <1>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_qspi1_dqs_gpio>;
> +		interrupt-parent = <&main_gpio1>;
> +		interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
> +		spi-max-frequency = <18500000>;

[...]
-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D