From 3c45308c44eda6cc3343a48341a82b96753c8a13 Mon Sep 17 00:00:00 2001 From: Lukas Wunner Date: Sat, 13 Jan 2024 18:10:52 +0100 Subject: 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 Reviewed-by: Jarkko Sakkinen Cc: Tim Harvey Signed-off-by: Jarkko Sakkinen --- drivers/char/tpm/tpm_tis_spi_main.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/char') 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 }, -- cgit v1.2.3