Quoting Doug Anderson (2019-12-16 14:53:22) > Hi, > > On Mon, Dec 16, 2019 at 1:16 PM Stephen Boyd <swboyd@xxxxxxxxxxxx> wrote: > > > > Add the cr50 device to the spi controller it is attached to. This > > enables /dev/tpm0 and some login things on Cheza. > > > > Cc: Douglas Anderson <dianders@xxxxxxxxxxxx> > > Signed-off-by: Stephen Boyd <swboyd@xxxxxxxxxxxx> > > --- > > arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi | 14 ++++++++++++++ > > 1 file changed, 14 insertions(+) > > > > diff --git a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi > > index 9a4ff57fc877..f6683460dc82 100644 > > --- a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi > > +++ b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi > > @@ -651,6 +651,20 @@ &spi0 { > > status = "okay"; > > }; > > > > +&spi5 { > > + status = "okay"; > > + > > + cr50@0 { > > Between v2 and v3 of your upstream bindings you changed this from > "cr50@0" to "tpm@0" in the example. I'm going to assume you did that > for some reason and you should be matching the binding example here. > ...or you should change the binding example to be cr50@. > Oh yeha, will fix and resend. > > > + compatible = "google,cr50"; > > + reg = <0>; > > + pinctrl-names = "default"; > > + pinctrl-0 = <&h1_ap_int_odl>; > > + spi-max-frequency = <800000>; > > + interrupt-parent = <&tlmm>; > > + interrupts = <129 IRQ_TYPE_EDGE_RISING>; > > Certainly we need an interrupt, but I don't see it in the bindings. > Any idea why it isn't there? > I just forward ported the binding and didn't look back. I'm converting it to YAML so I'll roll that fix in. Thanks.