[openwrt/openwrt] kernel: modules: Add tpm-tis-spi

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch openwrt-24.10:
https://git.openwrt.org/7c22ba7b333eeea4725603a5d55d9dbef2860959

commit 7c22ba7b333eeea4725603a5d55d9dbef2860959
Author: Tim Harvey <tharvey at gateworks.com>
AuthorDate: Mon Jan 26 17:17:26 2026 -0800

    kernel: modules: Add tpm-tis-spi
    
    Add a module for tpm-tis-spi for TCG TIS 1.3 TPM security chips
    connected to a regular non-tcg SPI master.
    
    Add imx target compatibility for kmod-tpm.
    
    Signed-off-by: Tim Harvey <tharvey at gateworks.com>
    Link: https://github.com/openwrt/openwrt/pull/21726
    Signed-off-by: Robert Marko <robimarko at gmail.com>
    (cherry picked from commit 92a94dc9b0df12111e4c81ff1a280e32deb5eba3)
    Link: https://github.com/openwrt/openwrt/pull/21781
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 package/kernel/linux/modules/other.mk | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/package/kernel/linux/modules/other.mk b/package/kernel/linux/modules/other.mk
index 7b64985fd6..33167fd1ac 100644
--- a/package/kernel/linux/modules/other.mk
+++ b/package/kernel/linux/modules/other.mk
@@ -1057,7 +1057,7 @@ $(eval $(call KernelPackage,tpm))
 define KernelPackage/tpm-tis
   SUBMENU:=$(OTHER_MENU)
   TITLE:=TPM TIS 1.2 Interface / TPM 2.0 FIFO Interface
-	DEPENDS:= @TARGET_x86 +kmod-tpm
+	DEPENDS:= @(TARGET_x86||TARGET_imx) +kmod-tpm
   KCONFIG:= CONFIG_TCG_TIS
   FILES:= \
 	$(LINUX_DIR)/drivers/char/tpm/tpm_tis.ko \
@@ -1074,6 +1074,27 @@ endef
 
 $(eval $(call KernelPackage,tpm-tis))
 
+define KernelPackage/tpm-tis-spi
+  SUBMENU:=$(OTHER_MENU)
+  TITLE:=TPM TIS 1.3 Interface SPI Interface
+	DEPENDS:= +kmod-tpm-tis +kmod-spi-dev
+  KCONFIG:= CONFIG_TCG_TIS_SPI \
+	CONFIG_TCG_TIS_SPI_CR50=n
+  FILES:= \
+	$(LINUX_DIR)/drivers/char/tpm/tpm_tis_spi.ko
+  AUTOLOAD:=$(call AutoLoad,20,tpm_tis_spi,1)
+endef
+
+define KernelPackage/tpm-tis-spi/description
+	If you have a TPM security chip which is connected to a regular,
+	non-tcg SPI master that is compliant with the
+	TCG TIS 1.3 TPM specification (TPM1.2) or the TCG PTP FIFO
+	specification (TPM2.0) say Yes and it will be accessible from
+	within Linux.
+endef
+
+$(eval $(call KernelPackage,tpm-tis-spi))
+
 define KernelPackage/tpm-i2c-atmel
   SUBMENU:=$(OTHER_MENU)
   TITLE:=TPM I2C Atmel Support