Hi Lukas, On Wed, Dec 20, 2023 at 09:14:02AM +0100, Lukas Wunner wrote: > On Thu, Aug 05, 2021 at 03:28:15PM -0700, rentao.bupt@xxxxxxxxx wrote: > > This common descirption is included by all Facebook AST2600 Network BMC > > platforms to minimize duplicated device entries across Facebook Network > > BMC device trees. > [...] > > --- /dev/null > > +++ b/arch/arm/boot/dts/ast2600-facebook-netbmc-common.dtsi > [...] > > + tpmdev@0 { > > + compatible = "tcg,tpm_tis-spi"; > > What's the chip used on this board? Going forward, the DT schema for TPMs > requires the exact chip name in addition to the generic "tcg,tpm_tis-spi". Sorry about the late response. It's "infineon,slb9670", and I will submit a patch for fix it soon. Cheers, - Tao