From ae39913ce4095682d1a6e5734a5558062a59d29f Mon Sep 17 00:00:00 2001 From: Sudeep Holla Date: Mon, 8 Jul 2019 09:41:04 +0100 Subject: [PATCH] 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 Cc: Rob Herring Cc: Mark Rutland Cc: devicetree@vger.kernel.org Signed-off-by: Sudeep Holla --- .../devicetree/bindings/arm/arm,scmi.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) 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 @@ 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 { -- 2.30.2