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From: Ulf Hansson <ulf.hansson@linaro.org>
To: Sudeep Holla <sudeep.holla@arm.com>,
	Cristian Marussi <cristian.marussi@arm.com>,
	Viresh Kumar <vireshk@kernel.org>, Nishanth Menon <nm@ti.com>,
	Stephen Boyd <sboyd@kernel.org>
Cc: Nikunj Kela <nkela@quicinc.com>,
	Prasad Sodagudi <psodagud@quicinc.com>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	devicetree@vger.kernel.org
Subject: [PATCH v3 09/13] dt-bindings: firmware: arm,scmi: Extend bindings for protocol@13
Date: Fri, 25 Aug 2023 13:26:29 +0200	[thread overview]
Message-ID: <20230825112633.236607-10-ulf.hansson@linaro.org> (raw)
In-Reply-To: <20230825112633.236607-1-ulf.hansson@linaro.org>

The protocol@13 node is describing the performance scaling option for the
ARM SCMI interface, as a clock provider. This is unnecessary limiting, as
performance scaling is in many cases not limited to switching a clock's
frequency.

Therefore, let's extend the binding so the interface can be modelled as a
generic performance domain too. The common way to describe this, is to use
the power-domain DT bindings, so let's use that.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---

Changes in v3:
	- None.

---
 .../devicetree/bindings/firmware/arm,scmi.yaml        | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
index b138f3d23df8..563a87dfb31a 100644
--- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
+++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
@@ -149,8 +149,15 @@ properties:
       '#clock-cells':
         const: 1
 
-    required:
-      - '#clock-cells'
+      '#power-domain-cells':
+        const: 1
+
+    oneOf:
+      - required:
+          - '#clock-cells'
+
+      - required:
+          - '#power-domain-cells'
 
   protocol@14:
     $ref: '#/$defs/protocol-node'
-- 
2.34.1


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WARNING: multiple messages have this Message-ID (diff)
From: Ulf Hansson <ulf.hansson@linaro.org>
To: Sudeep Holla <sudeep.holla@arm.com>,
	Cristian Marussi <cristian.marussi@arm.com>,
	Viresh Kumar <vireshk@kernel.org>, Nishanth Menon <nm@ti.com>,
	Stephen Boyd <sboyd@kernel.org>
Cc: Nikunj Kela <nkela@quicinc.com>,
	Prasad Sodagudi <psodagud@quicinc.com>,
	Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	devicetree@vger.kernel.org
Subject: [PATCH v3 09/13] dt-bindings: firmware: arm,scmi: Extend bindings for protocol@13
Date: Fri, 25 Aug 2023 13:26:29 +0200	[thread overview]
Message-ID: <20230825112633.236607-10-ulf.hansson@linaro.org> (raw)
In-Reply-To: <20230825112633.236607-1-ulf.hansson@linaro.org>

The protocol@13 node is describing the performance scaling option for the
ARM SCMI interface, as a clock provider. This is unnecessary limiting, as
performance scaling is in many cases not limited to switching a clock's
frequency.

Therefore, let's extend the binding so the interface can be modelled as a
generic performance domain too. The common way to describe this, is to use
the power-domain DT bindings, so let's use that.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---

Changes in v3:
	- None.

---
 .../devicetree/bindings/firmware/arm,scmi.yaml        | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
index b138f3d23df8..563a87dfb31a 100644
--- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
+++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
@@ -149,8 +149,15 @@ properties:
       '#clock-cells':
         const: 1
 
-    required:
-      - '#clock-cells'
+      '#power-domain-cells':
+        const: 1
+
+    oneOf:
+      - required:
+          - '#clock-cells'
+
+      - required:
+          - '#power-domain-cells'
 
   protocol@14:
     $ref: '#/$defs/protocol-node'
-- 
2.34.1


  parent reply	other threads:[~2023-08-25 11:27 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-25 11:26 [PATCH v3 00/13] arm_scmi/cpufreq: Add generic performance scaling support Ulf Hansson
2023-08-25 11:26 ` Ulf Hansson
2023-08-25 11:26 ` [PATCH v3 01/13] firmware: arm_scmi: Extend perf protocol ops to get number of domains Ulf Hansson
2023-08-25 11:26   ` Ulf Hansson
2023-08-25 11:26 ` [PATCH v3 02/13] firmware: arm_scmi: Extend perf protocol ops to get information of a domain Ulf Hansson
2023-08-25 11:26   ` Ulf Hansson
2023-08-25 11:26 ` [PATCH v3 03/13] cpufreq: scmi: Prepare to move OF parsing of domain-id to cpufreq Ulf Hansson
2023-08-25 11:26   ` Ulf Hansson
2023-09-21 14:28   ` Viresh Kumar
2023-09-21 14:28     ` Viresh Kumar
2023-08-25 11:26 ` [PATCH v3 04/13] firmware: arm_scmi: Align perf ops to use domain-id as in-parameter Ulf Hansson
2023-08-25 11:26   ` Ulf Hansson
2023-09-21 14:29   ` Viresh Kumar
2023-09-21 14:29     ` Viresh Kumar
2023-08-25 11:26 ` [PATCH v3 05/13] firmware: arm_scmi: Drop redundant ->device_domain_id() from perf ops Ulf Hansson
2023-08-25 11:26   ` Ulf Hansson
2023-08-25 11:26 ` [PATCH v3 06/13] cpufreq: scmi: Avoid one OF parsing in scmi_get_sharing_cpus() Ulf Hansson
2023-08-25 11:26   ` Ulf Hansson
2023-09-21 14:29   ` Viresh Kumar
2023-09-21 14:29     ` Viresh Kumar
2023-08-25 11:26 ` [PATCH v3 07/13] cpufreq: scmi: Drop redundant ifdef in scmi_cpufreq_probe() Ulf Hansson
2023-08-25 11:26   ` Ulf Hansson
2023-09-21 11:14   ` Sudeep Holla
2023-09-21 11:14     ` Sudeep Holla
2023-09-21 13:02     ` Ulf Hansson
2023-09-21 13:02       ` Ulf Hansson
2023-09-21 13:29       ` Sudeep Holla
2023-09-21 13:29         ` Sudeep Holla
2023-08-25 11:26 ` [PATCH v3 08/13] dt-bindings: arm: cpus: Add a power-domain-name for a performance-domain Ulf Hansson
2023-08-25 11:26   ` Ulf Hansson
2023-09-11 13:20   ` Rob Herring
2023-09-11 13:20     ` Rob Herring
2023-09-21 11:11   ` Sudeep Holla
2023-09-21 11:11     ` Sudeep Holla
2023-09-21 13:22     ` Ulf Hansson
2023-09-21 13:22       ` Ulf Hansson
2023-09-21 13:35       ` Sudeep Holla
2023-09-21 13:35         ` Sudeep Holla
2023-08-25 11:26 ` Ulf Hansson [this message]
2023-08-25 11:26   ` [PATCH v3 09/13] dt-bindings: firmware: arm,scmi: Extend bindings for protocol@13 Ulf Hansson
2023-09-11 13:20   ` Rob Herring
2023-09-11 13:20     ` Rob Herring
2023-08-25 11:26 ` [PATCH v3 10/13] dt-bindings: power: Clarify performance capabilities of power-domains Ulf Hansson
2023-08-25 11:26   ` Ulf Hansson
2023-09-11 14:40   ` Rob Herring
2023-09-11 14:40     ` Rob Herring
2023-08-25 11:26 ` [PATCH v3 11/13] cpufreq: scmi: Add support to parse domain-id using #power-domain-cells Ulf Hansson
2023-08-25 11:26   ` Ulf Hansson
2023-09-21 11:17   ` Sudeep Holla
2023-09-21 11:17     ` Sudeep Holla
2023-09-21 14:30   ` Viresh Kumar
2023-09-21 14:30     ` Viresh Kumar
2023-08-25 11:26 ` [PATCH v3 12/13] PM: domains: Allow genpd providers to manage OPP tables directly by its FW Ulf Hansson
2023-08-25 11:26   ` Ulf Hansson
2023-09-21 11:20   ` Sudeep Holla
2023-09-21 11:20     ` Sudeep Holla
2023-09-21 13:05     ` Ulf Hansson
2023-09-21 13:05       ` Ulf Hansson
2023-09-21 13:30       ` Sudeep Holla
2023-09-21 13:30         ` Sudeep Holla
2023-08-25 11:26 ` [PATCH v3 13/13] genpd: arm: Add the SCMI performance domain Ulf Hansson
2023-08-25 11:26   ` Ulf Hansson
2023-09-14 22:45 ` [PATCH v3 00/13] arm_scmi/cpufreq: Add generic performance scaling support Ulf Hansson
2023-09-14 22:45   ` Ulf Hansson
2023-09-18 10:26   ` Sudeep Holla
2023-09-18 10:26     ` Sudeep Holla
2023-09-19 10:24     ` Ulf Hansson
2023-09-19 10:24       ` Ulf Hansson
2023-09-25  9:39 ` Sudeep Holla
2023-09-25  9:39   ` Sudeep Holla

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