On Thu, Jun 07, 2018 at 05:05:14PM +0300, Jarkko Sakkinen wrote:
> On Thu, Jun 07, 2018 at 11:38:49AM +0200, Greg KH wrote:
> > On Tue, Jun 05, 2018 at 09:03:39PM +0300, Jarkko Sakkinen wrote:
> > > From: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx>
> > >
> > > commit b5d0ebc99bf5d0801a5ecbe958caa3d68b8eaee8 upstream
> > >
> > > The suspend/resume behavior of the TPM can be controlled by setting
> > > "powered-while-suspended" in the DTS. This is useful for the cases
> > > when hardware does not power-off the TPM.
> > >
> > > Signed-off-by: Sonny Rao <sonnyrao@xxxxxxxxxxxx>
> > > Signed-off-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx>
> > > Reviewed-by: Jason Gunthorpe <jgunthorpe@xxxxxxxxxxxxxxxxxxxx>
> > > Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
> > > Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>
> > > Signed-off-by: James Morris <james.l.morris@xxxxxxxxxx>
> > > ---
> > > drivers/char/tpm/tpm-chip.c | 12 ++++++++++++
> > > drivers/char/tpm/tpm-interface.c | 3 +++
> > > drivers/char/tpm/tpm.h | 1 +
> > > 3 files changed, 16 insertions(+)
> > >
> > > diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
> > > index a0d9ac6b6cc9..18134cd9ddd7 100644
> > > --- a/drivers/char/tpm/tpm-chip.c
> > > +++ b/drivers/char/tpm/tpm-chip.c
> > > @@ -324,8 +324,20 @@ static void tpm1_chip_unregister(struct tpm_chip *chip)
> > > */
> > > int tpm_chip_register(struct tpm_chip *chip)
> > > {
> > > +#ifdef CONFIG_OF
> > > + struct device_node *np;
> > > +#endif
> > > int rc;
> > >
> > > +#ifdef CONFIG_OF
> > > + np = of_find_node_by_name(NULL, "vtpm");
> > > + if (np) {
> > > + if (of_property_read_bool(np, "powered-while-suspended"))
> > > + chip->flags |= TPM_CHIP_FLAG_ALWAYS_POWERED;
> > > + }
> > > + of_node_put(np);
> > > +#endif
> > > +
> > > rc = tpm1_chip_register(chip);
> > > if (rc)
> > > return rc;
> >
> > Also has the same build error as the 4.9.y patch did :(
> >
> > I'll fix it up...
> >
> > greg k-h
>
> Ugh, I'm sorry :/ I did compile everything in BuildRoot with power arch.
> Have to revisit if something was left out of staging area or what
> happened.
I don't think you enabled CONFIG_OF, that would have showed this failed.
Try 'make allmodconfig' next time.
thanks,
greg k-h
