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

From: Krzysztof Kozlowski
Date: Wed Sep 27 2023 - 03:58:46 EST


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@xxxxxxxxxxxxx>
> ---
> .../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