summaryrefslogtreecommitdiff
path: root/drivers/char
diff options
context:
space:
mode:
authorLukas Wunner <lukas@wunner.de>2024-01-13 18:10:52 +0100
committerJarkko Sakkinen <jarkko.sakkinen@iki.fi>2024-03-12 00:26:06 +0200
commit3c45308c44eda6cc3343a48341a82b96753c8a13 (patch)
tree7b12c03150f29c3acb402cea0a9298ca619195bf /drivers/char
parent23595de568c1445f5a5cfb3bbad6644578dfc285 (diff)
tpm_tis_spi: 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 driver. 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.sakkinen@kernel.org> Cc: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/tpm/tpm_tis_spi_main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm_tis_spi_main.c b/drivers/char/tpm/tpm_tis_spi_main.c
index c5c3197ee29f..7d376a642807 100644
--- a/drivers/char/tpm/tpm_tis_spi_main.c
+++ b/drivers/char/tpm/tpm_tis_spi_main.c
@@ -327,6 +327,7 @@ static const struct spi_device_id tpm_tis_spi_id[] = {
MODULE_DEVICE_TABLE(spi, tpm_tis_spi_id);
static const struct of_device_id of_tis_spi_match[] __maybe_unused = {
+ { .compatible = "atmel,attpm20p", .data = tpm_tis_spi_probe },
{ .compatible = "st,st33htpm-spi", .data = tpm_tis_spi_probe },
{ .compatible = "infineon,slb9670", .data = tpm_tis_spi_probe },
{ .compatible = "tcg,tpm_tis-spi", .data = tpm_tis_spi_probe },