linux_dsm_epyc7002/Documentation/ABI/stable
Jarkko Sakkinen 313d21eeab tpm: device class for tpm
Added own device class for TPM. Uses MISC_MAJOR:TPM_MINOR for the
first character device in order to retain backwards compatibility.
Added tpm_dev_release() back attached to the character device.

I've been running this code now for a while on my laptop (Lenovo
T430S) TrouSerS works perfectly without modifications. I don't
believe it breaks anything significantly.

The sysfs attributes that have been placed under the wrong place
and are against sysfs-rules.txt should be probably left to
stagnate under platform device directory and start defining
new sysfs attributes to the char device directory.

Guidelines for future TPM sysfs attributes should be probably
along the lines of

- Single flat set of mandatory sysfs attributes. For example,
  current PPI interface is way way too rich when you only want
  to use it to clear and activate the TPM.

- Define sysfs attribute if and only if there's no way to get
  the value from ring-3. No attributes for TPM properties. It's
  just unnecessary maintenance hurdle that we don't want.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Reviewed-by: Jasob Gunthorpe <jason.gunthorpe@obsidianresearch.com>
Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Tested-by: Scot Doyle <lkml14@scotdoyle.com>
Tested-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
2015-01-17 14:00:10 +01:00
..
firewire-cdev firewire: cdev: ABI documentation enhancements 2011-07-16 07:24:32 +02:00
o2cb
syscalls
sysfs-acpi-pmprofile ACPI: Export FADT pm_profile integer value to userspace 2011-11-06 20:48:42 -05:00
sysfs-bus-firewire firewire: core: document is_local sysfs attribute 2012-06-30 10:49:06 +02:00
sysfs-bus-usb USB / PM: Drop CONFIG_PM_RUNTIME from the USB core 2014-12-04 00:51:54 +01:00
sysfs-bus-xen-backend xen: document backend sysfs files 2011-11-11 15:37:29 -05:00
sysfs-class-backlight backlight: add backlight type 2011-03-22 17:43:59 -07:00
sysfs-class-rfkill rename new rfkill sysfs knobs 2010-03-19 15:48:25 -04:00
sysfs-class-tpm tpm: device class for tpm 2015-01-17 14:00:10 +01:00
sysfs-class-ubi
sysfs-class-udc usb: gadget: udc: document our sysfs ABI 2014-11-03 10:01:00 -06:00
sysfs-devices-node mm: remove noisy remainder of the scan_unevictable interface 2014-10-09 22:25:55 -04:00
sysfs-devices-system-cpu powerpc: Document sysfs DSCR interface 2014-05-28 13:35:40 +10:00
sysfs-devices-system-xen_memory xen: document balloon driver sysfs files 2011-11-09 16:00:46 -05:00
sysfs-driver-ib_srp IB/srp: Add multichannel support 2014-11-12 12:05:24 +01:00
sysfs-driver-qla2xxx [SCSI] qla2xxx: Add firmware-dump kobject uevent notification. 2009-12-04 12:00:10 -06:00
sysfs-driver-usb-usbtmc USB: update usbtmc api documentation 2012-04-12 08:26:22 -07:00
sysfs-driver-w1_ds28e04 w1: Add 1-wire slave device driver for DS28E04-100 2012-06-13 16:47:10 -07:00
sysfs-firmware-efi-vars efivars: Add Documentation 2011-03-14 08:40:51 -07:00
sysfs-firmware-opal-dump powerpc/powernv Platform dump interface 2014-03-07 16:19:10 +11:00
sysfs-firmware-opal-elog powerpc/powernv: Read OPAL error log and export it through sysfs 2014-03-07 16:19:00 +11:00
sysfs-module ABI: Clarify when /sys/module/MODULENAME is created 2013-07-02 15:38:20 +09:30
sysfs-transport-srp scsi_transport_srp: Add periodic reconnect support 2013-11-08 14:43:16 -08:00
thermal-notification thermal: Add event notification to thermal framework 2011-01-12 00:08:35 -05:00
vdso Documentation: Add newline at end-of-file to files lacking one 2012-07-20 23:10:28 +02:00