| Message ID | 1580905572-22712-4-git-send-email-mkshah@codeaurora.org (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | Add RSC power domain support | expand |
On Wed, 5 Feb 2020 17:56:09 +0530, Maulik Shah wrote: > In addition to transmitting resource state requests to the remote > processor, the RSC is responsible for powering off/lowering the > requirements from CPUs subsystem for the associated hardware like > buses, clocks, and regulators when all CPUs and cluster is powered down. > > The power domain is configured to a low power state and when all the > CPUs are powered down, the RSC can lower resource state requirements > and power down the rails that power the CPUs. > > Add PM domain specifier property for RSC controller. > > Cc: devicetree@vger.kernel.org > Signed-off-by: Maulik Shah <mkshah@codeaurora.org> > Reviewed-by: Stephen Boyd <swboyd@chromium.org> > --- > Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt | 9 +++++++++ > 1 file changed, 9 insertions(+) > Acked-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt b/Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt index 9b86d1e..5682806 100644 --- a/Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt +++ b/Documentation/devicetree/bindings/soc/qcom/rpmh-rsc.txt @@ -83,6 +83,14 @@ Properties: Value type: <string> Definition: Name for the RSC. The name would be used in trace logs. +- #power-domain-cells: + Usage: optional + Value type: <u32> + Definition: Must be 0. Number of cells in power domain specifier. + Optional for controllers that may be in 'solver' state + where they can be in autonomous mode executing low power + modes. + Drivers that want to use the RSC to communicate with RPMH must specify their bindings as child nodes of the RSC controllers they wish to communicate with. @@ -112,6 +120,7 @@ TCS-OFFSET: 0xD00 <SLEEP_TCS 3>, <WAKE_TCS 3>, <CONTROL_TCS 1>; + #power-domain-cells = <0>; }; Example 2: