| Message ID | 20201222145603.40192-2-jim2101024@gmail.com |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | firmware: arm_scmi: Augment SMC/HVC to allow optional interrupt | expand |
| Context | Check | Description |
|---|---|---|
| robh/checkpatch | success |
On 12/22/2020 6:56 AM, Jim Quinlan wrote: > In normal use of smc/hvc transport in SCMI the message completion is > indicated by the return of the SMC call. This commit provides for an > optional interrupt named "a2p" which is used instead to > indicate the completion of a message. > > Signed-off-by: Jim Quinlan <jim2101024@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com>
On Tue, 22 Dec 2020 09:56:02 -0500, Jim Quinlan wrote: > In normal use of smc/hvc transport in SCMI the message completion is > indicated by the return of the SMC call. This commit provides for an > optional interrupt named "a2p" which is used instead to > indicate the completion of a message. > > Signed-off-by: Jim Quinlan <jim2101024@gmail.com> > --- > Documentation/devicetree/bindings/arm/arm,scmi.txt | 8 ++++++++ > 1 file changed, 8 insertions(+) > Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/arm/arm,scmi.txt b/Documentation/devicetree/bindings/arm/arm,scmi.txt index b5ce5b39bb9c..667d58e0a659 100644 --- a/Documentation/devicetree/bindings/arm/arm,scmi.txt +++ b/Documentation/devicetree/bindings/arm/arm,scmi.txt @@ -31,6 +31,14 @@ Optional properties: - mbox-names: shall be "tx" or "rx" depending on mboxes entries. +- interrupts : when using smc or hvc transports, this optional + property indicates that msg completion by the platform is indicated + by an interrupt rather than by the return of the smc call. This + should not be used except when the platform requires such behavior. + +- interrupt-names : if "interrupts" is present, interrupt-names must also + be present and have the value "a2p". + See Documentation/devicetree/bindings/mailbox/mailbox.txt for more details about the generic mailbox controller and client driver bindings.
In normal use of smc/hvc transport in SCMI the message completion is indicated by the return of the SMC call. This commit provides for an optional interrupt named "a2p" which is used instead to indicate the completion of a message. Signed-off-by: Jim Quinlan <jim2101024@gmail.com> --- Documentation/devicetree/bindings/arm/arm,scmi.txt | 8 ++++++++ 1 file changed, 8 insertions(+)