| Message ID | 20190806170208.6787-4-sudeep.holla@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | firmware: arm_scmi: add SCMI v2.0 fastchannels and reset protocol support | expand |
On Tue, 2019-08-06 at 18:02 +0100, Sudeep Holla wrote: > SCMIv2.0 adds a new Reset Management Protocol to manage various reset > states a given device or domain can enter. Extend the existing SCMI > bindings to add reset protocol support by re-using the reset bindings > for bothe reset providers and consumers. ^ typo > > Cc: Philipp Zabel <p.zabel@pengutronix.de> regards Philipp
On Wed, Aug 07, 2019 at 10:26:50AM +0200, Philipp Zabel wrote: > On Tue, 2019-08-06 at 18:02 +0100, Sudeep Holla wrote: > > SCMIv2.0 adds a new Reset Management Protocol to manage various reset > > states a given device or domain can enter. Extend the existing SCMI > > bindings to add reset protocol support by re-using the reset bindings > > for bothe reset providers and consumers. > ^ > typo > Thanks, fixed now. -- Regards, Sudeep
Hi Rob, On Tue, Aug 06, 2019 at 06:02:06PM +0100, Sudeep Holla wrote: > SCMIv2.0 adds a new Reset Management Protocol to manage various reset > states a given device or domain can enter. Extend the existing SCMI > bindings to add reset protocol support by re-using the reset bindings > for bothe reset providers and consumers. > > Cc: Philipp Zabel <p.zabel@pengutronix.de> > Cc: Rob Herring <robh+dt@kernel.org> Sorry for the nag, can you review the binding so that I can plan to get this merged for v5.4 -- Regards, Sudeep
diff --git a/Documentation/devicetree/bindings/arm/arm,scmi.txt b/Documentation/devicetree/bindings/arm/arm,scmi.txt index 317a2fc3667a..083dbf96ee00 100644 --- a/Documentation/devicetree/bindings/arm/arm,scmi.txt +++ b/Documentation/devicetree/bindings/arm/arm,scmi.txt @@ -73,6 +73,16 @@ SCMI provides an API to access the various sensors on the SoC. as used by the firmware. Refer to platform details for your implementation for the IDs to use. +Reset signal bindings for the reset domains based on SCMI Message Protocol +------------------------------------------------------------ + +This binding for the SCMI reset domain providers uses the generic reset +signal binding[5]. + +Required properties: + - #reset-cells : Should be 1. Contains the reset domain ID value used + by SCMI commands. + SRAM and Shared Memory for SCMI ------------------------------- @@ -93,6 +103,7 @@ Each sub-node represents the reserved area for SCMI. [2] Documentation/devicetree/bindings/power/power_domain.txt [3] Documentation/devicetree/bindings/thermal/thermal.txt [4] Documentation/devicetree/bindings/sram/sram.txt +[5] Documentation/devicetree/bindings/reset/reset.txt Example: @@ -152,6 +163,11 @@ firmware { reg = <0x15>; #thermal-sensor-cells = <1>; }; + + scmi_reset: protocol@16 { + reg = <0x16>; + #reset-cells = <1>; + }; }; }; @@ -166,6 +182,7 @@ hdlcd@7ff60000 { reg = <0 0x7ff60000 0 0x1000>; clocks = <&scmi_clk 4>; power-domains = <&scmi_devpd 1>; + resets = <&scmi_reset 10>; }; thermal-zones {
SCMIv2.0 adds a new Reset Management Protocol to manage various reset states a given device or domain can enter. Extend the existing SCMI bindings to add reset protocol support by re-using the reset bindings for bothe reset providers and consumers. Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> --- .../devicetree/bindings/arm/arm,scmi.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)