Comment 2 for bug 1398274

For tpm 2.0 basic kernel support, it has landed into 4.0 kenrel.
aec04cb tpm: TPM 2.0 FIFO Interface
30fc8d1 tpm: TPM 2.0 CRB Interface
7a1d7e6 tpm: TPM 2.0 baseline support
313d21e tpm: device class for tpm
71ed848 tpm: rename chip->dev to chip->pdev
0dc5536 tpm: fix raciness of PPI interface lookup
afb5abc tpm: two-phase chip management functions
87155b7 tpm: merge duplicate transmit_cmd() functions
1a0f1b2 tpm_ibmvtpm: Update email address in maintainers list and ibmvtpm driver
67fe941 tpm/tpm_i2c_stm_st33: Fix coccinelle warnings. Possible NULL pointer dereference
f2f083b tpm/tpm_i2c_stm_st33: Increment driver version to 1.2.1.
00820e8 tpm/tpm_i2c_stm_st33: Remove useless i2c read on interrupt registers
c3804b8 tpm/tpm_i2c_stm_st33: Interrupt management improvement
8dcd198 tpm/tpm_i2c_stm_st33: Few code cleanup
e8f6f3b tpm/tpm_i2c_stm_st33/dts/st33zp24_i2c: Add DTS Documentation
c36b1b2 tpm/tpm_i2c_stm_st33: Add devicetree structure
875edad tpm/tpm_i2c_stm_st33: Replace tpm_st33_* function with tpm_stm_*
ca16b76 tpm/tpm_i2c_stm_st33: Replace err/rc/ret by ret for a function return code
76182b6 tpm/tpm_i2c_stm_st33: Remove reference to io_serirq
b9626f3 tpm/tpm_i2c_stm_st33: Add new tpm_stm_dev structure and remove tpm_i2c_buffer[0], [1] buffer.
2dbca75 tpm/tpm_i2c_stm_st33: Move tpm registers to tpm_i2c_stm_st33.c
7500c4b tpm/tpm_i2c_stm_st33: Fix few coding style error reported by scripts/checkpatch.pl
642d2be tpm/tpm_i2c_stm_st33: Change License header to have up to date address information
578aa13 tpm/tpm_i2c_stm_st33: Update Kconfig in order to be inline to other similar product
1ba3b0b tpm/tpm_i2c_stm_st33: Fix potential bug in tpm_stm_i2c_send
2dfc2de char: tpm: Deletion of unnecessary checks before the function call "tpm_dev_vendor_release"
9fd8e5a tpm: remove unnecessary sizeof(u8)
84eb186 tpm: Fix NULL return in tpm_ibmvtpm_get_desired_dma
448e9c5 tpm_tis: verify interrupt during init
bb95cd3 char: tpm: Add missing error check for devm_kzalloc
398a1e7 TPM: Add new TPMs to the tail of the list to prevent inadvertent change of dev