On Sat, 13 Jan 2024 18:10:51 +0100, Lukas Wunner wrote:
> Commit 4f2a348aa365 ("arm64: dts: imx8mm-venice-gw73xx: add TPM device")
> added a devicetree node for the Trusted Platform Module on certain
> Gateworks boards.
>
> The commit only used the generic "tcg,tpm_tis-spi" compatible string,
> but public documentation shows that the chip is an ATTPM20P from Atmel
> (nowadays Microchip):
> https://trac.gateworks.com/wiki/tpm
>
> Add the chip to the supported compatible strings of the TPM TIS SPI
> schema.
>
> For reference, a datasheet is available at:
> https://ww1.microchip.com/downloads/en/DeviceDoc/ATTPM20P-Trusted-Platform-Module-TPM-2.0-SPI-Interface-Summary-Data-Sheet-DS40002082A.pdf
>
> Signed-off-by: Lukas Wunner <lukas@xxxxxxxxx>
> Reviewed-by: Jarkko Sakkinen <jarkko@xxxxxxxxxx>
> Cc: Tim Harvey <tharvey@xxxxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/tpm/tcg,tpm_tis-spi.yaml | 1 +
> 1 file changed, 1 insertion(+)
>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
