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From: Dave Gerlach <d-gerlach@ti.com>
To: Rob Herring <robh+dt@kernel.org>,
	Santosh Shilimkar <ssantosh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Tero Kristo <kristo@kernel.org>, Nishanth Menon <nm@ti.com>
Cc: <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Dave Gerlach <d-gerlach@ti.com>
Subject: [PATCH 1/6] dt-bindings: ti,sci: Add ti,ctx-memory-region property
Date: Thu, 21 Apr 2022 15:36:54 -0500	[thread overview]
Message-ID: <20220421203659.27853-2-d-gerlach@ti.com> (raw)
In-Reply-To: <20220421203659.27853-1-d-gerlach@ti.com>

Add documentation for the ti,ctx-memory-region property which is a
phandle to a reserved-memory carveout to be used by the ti_sci driver
storage of low power mode memory context. This is optional for normal
system operation but required to enabled suspend-to-mem usage of Deep
Sleep state.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
---
 .../devicetree/bindings/arm/keystone/ti,sci.yaml         | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml b/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
index 34f5f877d444..ec88aa88a2a0 100644
--- a/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
+++ b/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
@@ -61,6 +61,15 @@ properties:
   mboxes:
     minItems: 2
 
+  ti,ctx-memory-region:
+    description:
+      Phandle to the reserved memory node to be associated with the
+      ti-sci device, to be used for saving low power context. The
+      reserved memory node should be a carveout node, and should
+      be defined as per the bindings in
+      Documentation/devicetree/bindings/reserved-memory/reserved-memory.yaml
+    $ref: /schemas/types.yaml#/definitions/string
+
   ti,system-reboot-controller:
     description: Determines If system reboot can be triggered by SoC reboot
     type: boolean
-- 
2.35.0


WARNING: multiple messages have this Message-ID (diff)
From: Dave Gerlach <d-gerlach@ti.com>
To: Rob Herring <robh+dt@kernel.org>,
	Santosh Shilimkar <ssantosh@kernel.org>,
	 Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Tero Kristo <kristo@kernel.org>, Nishanth Menon <nm@ti.com>
Cc: <linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Dave Gerlach <d-gerlach@ti.com>
Subject: [PATCH 1/6] dt-bindings: ti,sci: Add ti,ctx-memory-region property
Date: Thu, 21 Apr 2022 15:36:54 -0500	[thread overview]
Message-ID: <20220421203659.27853-2-d-gerlach@ti.com> (raw)
In-Reply-To: <20220421203659.27853-1-d-gerlach@ti.com>

Add documentation for the ti,ctx-memory-region property which is a
phandle to a reserved-memory carveout to be used by the ti_sci driver
storage of low power mode memory context. This is optional for normal
system operation but required to enabled suspend-to-mem usage of Deep
Sleep state.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
---
 .../devicetree/bindings/arm/keystone/ti,sci.yaml         | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml b/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
index 34f5f877d444..ec88aa88a2a0 100644
--- a/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
+++ b/Documentation/devicetree/bindings/arm/keystone/ti,sci.yaml
@@ -61,6 +61,15 @@ properties:
   mboxes:
     minItems: 2
 
+  ti,ctx-memory-region:
+    description:
+      Phandle to the reserved memory node to be associated with the
+      ti-sci device, to be used for saving low power context. The
+      reserved memory node should be a carveout node, and should
+      be defined as per the bindings in
+      Documentation/devicetree/bindings/reserved-memory/reserved-memory.yaml
+    $ref: /schemas/types.yaml#/definitions/string
+
   ti,system-reboot-controller:
     description: Determines If system reboot can be triggered by SoC reboot
     type: boolean
-- 
2.35.0


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  reply	other threads:[~2022-04-21 20:38 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-21 20:36 [PATCH 0/6] firmware: ti_sci: Introduce system suspend support Dave Gerlach
2022-04-21 20:36 ` Dave Gerlach
2022-04-21 20:36 ` Dave Gerlach [this message]
2022-04-21 20:36   ` [PATCH 1/6] dt-bindings: ti,sci: Add ti,ctx-memory-region property Dave Gerlach
2022-04-22 19:02   ` Andrew Davis
2022-04-22 19:02     ` Andrew Davis
2022-04-22 19:02     ` Andrew Davis
2022-04-22 19:10     ` Dave Gerlach
2022-04-22 19:10       ` Dave Gerlach
2022-04-23 13:36       ` Nishanth Menon
2022-04-23 13:36         ` Nishanth Menon
2022-04-25 20:24         ` Dave Gerlach
2022-04-25 20:24           ` Dave Gerlach
2022-04-26  3:28           ` Nishanth Menon
2022-04-26  3:28             ` Nishanth Menon
2022-05-02 20:14   ` Rob Herring
2022-05-02 20:14     ` Rob Herring
2022-04-21 20:36 ` [PATCH 2/6] dt-bindings: ti,sci: Add lpm region and ti,lpm-firmware-name Dave Gerlach
2022-04-21 20:36   ` [PATCH 2/6] dt-bindings: ti, sci: Add lpm region and ti, lpm-firmware-name Dave Gerlach
2022-05-02 20:15   ` [PATCH 2/6] dt-bindings: ti,sci: Add lpm region and ti,lpm-firmware-name Rob Herring
2022-05-02 20:15     ` Rob Herring
2022-04-21 20:36 ` [PATCH 3/6] firmware: ti_sci: Introduce Power Management Ops Dave Gerlach
2022-04-21 20:36   ` Dave Gerlach
2022-04-21 20:36 ` [PATCH 4/6] firmware: ti_sci: Introduce ti,ctx-memory-region for reserved LPM memory Dave Gerlach
2022-04-21 20:36   ` [PATCH 4/6] firmware: ti_sci: Introduce ti, ctx-memory-region " Dave Gerlach
2022-04-21 20:36 ` [PATCH 5/6] firmware: ti_sci: Use dt provided fw name and address to load at suspend time Dave Gerlach
2022-04-21 20:36   ` Dave Gerlach
2022-04-21 20:36 ` [PATCH 6/6] firmware: ti_sci: Introduce prepare system suspend call Dave Gerlach
2022-04-21 20:36   ` Dave Gerlach

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