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authorLukas Wunner <lukas@wunner.de>2024-01-13 20:10:51 +0300
committerJarkko Sakkinen <jarkko.sakkinen@iki.fi>2024-03-12 01:26:05 +0300
commit23595de568c1445f5a5cfb3bbad6644578dfc285 (patch)
treebf80a767e5c9a9a2bf83a1a113230f486365d0ad /Documentation
parentb7ab4bbd0188f3985b821fa09456b11105a8dedf (diff)
downloadlinux-23595de568c1445f5a5cfb3bbad6644578dfc285.tar.xz
dt-bindings: tpm: Add compatible string atmel,attpm20p
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@wunner.de> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Cc: Tim Harvey <tharvey@gateworks.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/tpm/tcg,tpm_tis-spi.yaml1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/tpm/tcg,tpm_tis-spi.yaml b/Documentation/devicetree/bindings/tpm/tcg,tpm_tis-spi.yaml
index c3413b47ac3d..6cb2de7cb568 100644
--- a/Documentation/devicetree/bindings/tpm/tcg,tpm_tis-spi.yaml
+++ b/Documentation/devicetree/bindings/tpm/tcg,tpm_tis-spi.yaml
@@ -20,6 +20,7 @@ properties:
compatible:
items:
- enum:
+ - atmel,attpm20p
- infineon,slb9670
- st,st33htpm-spi
- st,st33zp24-spi