diff options
| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2017-01-11 02:27:21 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-11 09:43:57 +0300 |
| commit | 7ee7f45a763bd68c3a606595a8c1bb08c3e6146b (patch) | |
| tree | a42e4971126677c3758e46e4e0f0a20a8d8d41f5 /drivers/misc/mei/debugfs.c | |
| parent | a121103c922847ba5010819a3f250f1f7fc84ab8 (diff) | |
| download | linux-7ee7f45a763bd68c3a606595a8c1bb08c3e6146b.tar.xz | |
mei: bus: enable OS version only for SPT and newer
Sending OS version for support of TPM2_ChangeEPS() is required only
for SPT FW (HMB version 2.0) and newer.
On older platforms the command should be just ignored by the firmware
but some older platforms misbehave so it's safer to send the command
only if required.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=192051
Fixes: 7279b238bade (mei: send OS type to the FW)
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Tested-by: Jan Niehusmann <jan@gondor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/debugfs.c')
| -rw-r--r-- | drivers/misc/mei/debugfs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/misc/mei/debugfs.c b/drivers/misc/mei/debugfs.c index c6c051b52f55..c6217a4993ad 100644 --- a/drivers/misc/mei/debugfs.c +++ b/drivers/misc/mei/debugfs.c @@ -180,6 +180,8 @@ static ssize_t mei_dbgfs_read_devstate(struct file *fp, char __user *ubuf, dev->hbm_f_ev_supported); pos += scnprintf(buf + pos, bufsz - pos, "\tFA: %01d\n", dev->hbm_f_fa_supported); + pos += scnprintf(buf + pos, bufsz - pos, "\tOS: %01d\n", + dev->hbm_f_os_supported); } pos += scnprintf(buf + pos, bufsz - pos, "pg: %s, %s\n", |