On Fri 01 Dec 14:25 PST 2017, Rob Herring wrote: > On Wed, Nov 29, 2017 at 04:00:40PM -0800, Bjorn Andersson wrote: > > Attempt to acquire the APCS IPC through the mailbox framework and fall > > back to the old syscon based approach, to allow us to move away from > > using the syscon. > > > > Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> > > --- > > > > Changes since v1: > > - Added dt binding update > > - Specifies knows_txdone on the mailbox client > > > > .../devicetree/bindings/soc/qcom/qcom,smp2p.txt | 8 ++++- > > drivers/soc/qcom/Kconfig | 1 + > > drivers/soc/qcom/smp2p.c | 39 ++++++++++++++++++---- > > 3 files changed, 41 insertions(+), 7 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,smp2p.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,smp2p.txt > > index af9ca37221ce..a35af2dafdad 100644 > > --- a/Documentation/devicetree/bindings/soc/qcom/qcom,smp2p.txt > > +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,smp2p.txt > > @@ -17,9 +17,15 @@ processor ID) and a string identifier. > > Value type: <prop-encoded-array> > > Definition: one entry specifying the smp2p notification interrupt > > > > -- qcom,ipc: > > +- mboxes: > > Usage: required > > Value type: <prop-encoded-array> > > + Definition: reference to the associated doorbell in APCS, as described > > + in mailbox/mailbox.txt > > + > > +- qcom,ipc: > > + Usage: required, unless mboxes is specified > > Is this deprecated as mboxes is required, so it's never present? > Right, this required property "mboxes" replaces the previously required property "qcom,ipc". This comes from migrating the description of APCS as a syscon to a mailbox/doorbell. Regards, Bjorn > > + Value type: <prop-encoded-array> > > Definition: three entries specifying the outgoing ipc bit used for > > signaling the remote end of the smp2p edge: > > - phandle to a syscon node representing the apcs registers -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
