On Thu, Sep 08, 2016 at 02:14:58PM +0300, Jarkko Sakkinen wrote: > On Wed, Sep 07, 2016 at 02:32:32PM +0300, Tomas Winkler wrote: > > There is a HW bug in Skylake, Kabylake, and Broxton PCH Intel PTT device, > > where most of the registers in the control area except START, REQUEST, > > CANCEL, and LOC_CTRL lost retention when the device is in the idle state. > > Hence we need to bring the device to ready state before accessing the > > other registers. The fix brings device to ready state before trying to read > > command and response buffer addresses in order to remap the for access. > > > > Signed-off-by: Tomas Winkler <tomas.wink...@intel.com> > > I think I would add the dev_dbg line permanently with it that you have > in responses in this thread. There's been some unrelated bugs before > where this information in klog would have been very handy. > > Reviewed-by: Jarkko Sakkinen <jarkko.sakki...@linux.intel.com>
Tested-by: Jarkko Sakkinen <jarkko.sakki...@linux.intel.com> (with Broxton PCH) /Jarkko ------------------------------------------------------------------------------ _______________________________________________ tpmdd-devel mailing list tpmdd-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/tpmdd-devel
