Alexander Steffen bbc23a07b0 tpm: Add tpm_tis_i2c backend for tpm_tis_core ... Implement the TCG I2C Interface driver, as specified in the TCG PC Client Platform TPM Profile (PTP) specification for TPM 2.0 v1.04 revision 14, section 8, I2C Interface Definition. This driver supports Guard Times. That is, if required by the TPM, the driver has to wait by a vendor-specific time after each I2C read/write. The specific time is read from the TPM_I2C_INTERFACE_CAPABILITY register. Unfortunately, the TCG specified almost but not quite compatible register addresses. Therefore, the TIS register addresses need to be mapped to I2C ones. The locality is stripped because for now, only locality 0 is supported. Add a sanity check to I2C reads of e.g. TPM_ACCESS and TPM_STS. This is to detect communication errors and issues due to non-standard behaviour (E.g. the clock stretching quirk in the BCM2835, see 4dbfb5f440). In case the sanity check fails, attempt a retry. Co-developed-by: Johannes Holland <johannes.holland@infineon.com> Signed-off-by: Johannes Holland <johannes.holland@infineon.com> Co-developed-by: Amir Mizinski <amirmizi6@gmail.com> Signed-off-by: Amir Mizinski <amirmizi6@gmail.com> Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>		2022-08-03 23:56:20 +03:00
..
agp	x86/amd_nb: Unexport amd_cache_northbridges()	2022-04-05 19:22:27 +02:00
hw_random	This update includes the following changes:	2022-08-02 17:45:14 -07:00
ipmi	ipmi:ipmb: Fix refcount leak in ipmi_ipmb_probe	2022-05-12 10:00:04 -05:00
mwave	char/mwave: Adjust io port register size	2021-12-03 14:27:06 +01:00
pcmcia	Char / Misc / Other smaller driver subsystem updates for 5.19-rc1	2022-06-03 11:36:34 -07:00
tpm	tpm: Add tpm_tis_i2c backend for tpm_tis_core	2022-08-03 23:56:20 +03:00
xilinx_hwicap	xilinx_hwicap: cleanup comments	2022-02-25 12:08:57 +01:00
xillybus	char: xillybus: fix a refcount leak in cleanup_dev()	2022-04-24 17:30:45 +02:00
adi.c
apm-emulation.c
applicom.c	applicom: unneed to initialise statics to 0	2021-12-21 10:14:08 +01:00
applicom.h
bsr.c	powerpc/BSR: Make use of the helper macro LIST_HEAD()	2022-02-25 12:10:15 +01:00
ds1620.c
dsp56k.c
dtlk.c
hangcheck-timer.c
hpet.c	hpet: remove unused writeq/readq function definitions	2022-02-04 16:45:39 +01:00
Kconfig	random: remove CONFIG_ARCH_RANDOM	2022-07-18 15:03:37 +02:00
lp.c	char: lp: remove redundant initialization of err	2022-06-10 15:29:50 +02:00
Makefile
mem.c	/dev/mem: make reads and writes interruptible	2022-04-24 17:31:01 +02:00
misc.c	char: misc: remove usage of list iterator past the loop body	2022-04-24 17:15:12 +02:00
mspec.c
nsc_gpio.c
nvram.c
nwbutton.c
nwbutton.h
nwflash.c
pc8736x_gpio.c
powernv-op-panel.c
ppdev.c
ps3flash.c
random.c	random: correct spelling of "overwrites"	2022-07-30 01:13:02 +02:00
scx200_gpio.c
sonypi.c
tb0219.c
tlclk.c
toshiba.c
ttyprintk.c	char: ttyprintk: register console	2022-04-22 16:24:47 +02:00
uv_mmtimer.c
virtio_console.c	Char/Misc and other driver updates for 5.18-rc1	2022-03-28 12:27:35 -07:00