On Wed, Mar 01, 2017 at 12:51:16PM +0100, Enric Balletbo i Serra wrote: > From: Sonny Rao <sonny...@chromium.org> > > The suspend/resume behavior of the TPM can be controlled > by setting "powered-while-suspended" in the DTS. > > Signed-off-by: Sonny Rao <sonny...@chromium.org> > Signed-off-by: Enric Balletbo i Serra <enric.balle...@collabora.com> > --- > Documentation/devicetree/bindings/tpm/tpm.txt | 25 +++++++++++++++++++++++++ > drivers/char/tpm/tpm_i2c_infineon.c | 25 ++++++++++++++++++++++++- > 2 files changed, 49 insertions(+), 1 deletion(-) > create mode 100644 Documentation/devicetree/bindings/tpm/tpm.txt > > diff --git a/Documentation/devicetree/bindings/tpm/tpm.txt > b/Documentation/devicetree/bindings/tpm/tpm.txt > new file mode 100644 > index 0000000..af4de0d > --- /dev/null > +++ b/Documentation/devicetree/bindings/tpm/tpm.txt > @@ -0,0 +1,25 @@ > +TPM (Trusted Platform Module) > + > +A TPM on the I2C bus is a child of the node for the bus. > + > +Required properties: > +- compatible: should be "infineon,<chip>" > +- reg: the I2C address > + > +Optional properties: > +- powered-while-suspended: present when the TPM is left powered on between > + suspend and resume (makes the suspend/resume callbacks do nothing).
This reads like configuration rather than a HW property. Why do you want this property? Thanks, Mark.
