linux-kernel - Re: [PATCH] arm64: dts: imx8mp-venice-gw73xx: add TPM device

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Message-ID: <CAJ+vNU0R_zU2wh1Om9wgLp4ZREAJia5uxBCgrO7MxNmcZf7uLw@mail.gmail.com>
Date:   Thu, 28 Sep 2023 11:01:11 -0700
From:   Tim Harvey <tharvey@...eworks.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Shawn Guo <shawnguo@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>
Subject: Re: [PATCH] arm64: dts: imx8mp-venice-gw73xx: add TPM device

On Wed, Sep 27, 2023 at 12:58 AM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 26/09/2023 21:43, Tim Harvey wrote:
> > Add the TPM device found on the GW73xx revision F PCB.
> >
> > Signed-off-by: Tim Harvey <tharvey@...eworks.com>
> > ---
> >  .../boot/dts/freescale/imx8mp-venice-gw73xx.dtsi      | 11 ++++++++++-
> >  1 file changed, 10 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi
> > index 48a284478468..43e5e838cefa 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw73xx.dtsi
> > @@ -95,8 +95,17 @@ reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
> >  &ecspi2 {
> >       pinctrl-names = "default";
> >       pinctrl-0 = <&pinctrl_spi2>;
> > -     cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
> > +     cs-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>,
> > +                <&gpio1 10 GPIO_ACTIVE_LOW>;
> >       status = "okay";
> > +
> > +     tpm@1 {
> > +             compatible = "tcg,tpm_tis-spi";
> > +             #address-cells = <0x1>;
> > +             #size-cells = <0x1>;
>
> Why do you need these?
>
> > +             reg = <0x1>;
>
> reg is always after compatible
>
> > +             spi-max-frequency = <36000000>;
> > +     };
> >  };
> >
> >  &gpio4 {
>
> Best regards,
> Krzysztof
>

Krzysztof,

Thanks for the review - I will remove the unnecessary properties with a v2

Best Regards,

Tim