Commit ae39913c authored by Sudeep Holla's avatar Sudeep Holla
Browse files

dt-bindings: arm: Extend SCMI to support new reset protocol 



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 both 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: default avatarSudeep Holla <sudeep.holla@arm.com>
parent 82383957

Documentation/devicetree/bindings/arm/arm,scmi.txt

+17 −0
Original line number Diff line number Diff line
@@ -73,6 +73,16 @@ Required properties: 
			 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 @@ Required sub-node properties: 
[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 {

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