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From: Elliot Berman <eberman@codeaurora.org>
To: Mark Rutland <mark.rutland@arm.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Sudeep Holla <sudeep.holla@arm.com>
Cc: Elliot Berman <eberman@codeaurora.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Trilok Soni <tsoni@codeaurora.org>,
	Prasad Sodagudi <psodagud@codeaurora.org>,
	David Collins <collinsd@codeaurora.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 1/3] dt: psci: Add arm,psci-sys-reset2-type property
Date: Mon, 24 Feb 2020 12:57:36 -0800	[thread overview]
Message-ID: <1582577858-12410-2-git-send-email-eberman@codeaurora.org> (raw)
In-Reply-To: <1582577858-12410-1-git-send-email-eberman@codeaurora.org>

Some implementors of PSCI may relax the requirements of the PSCI
architectural warm reset. In order to comply with PSCI specification, a
different reset_type value must be used. The alternate PSCI
SYSTEM_RESET2 may be used in all warm/soft reboot scenarios, replacing
the architectural warm reset.

Signed-off-by: Elliot Berman <eberman@codeaurora.org>
---
 Documentation/devicetree/bindings/arm/psci.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/psci.yaml b/Documentation/devicetree/bindings/arm/psci.yaml
index 8ef8542..469256a2 100644
--- a/Documentation/devicetree/bindings/arm/psci.yaml
+++ b/Documentation/devicetree/bindings/arm/psci.yaml
@@ -102,6 +102,11 @@ properties:
       [1] Kernel documentation - ARM idle states bindings
         Documentation/devicetree/bindings/arm/idle-states.txt
 
+  arm,psci-sys-reset2-param:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+        reset_param value to use during a warm or soft reboot.
+
   "#power-domain-cells":
     description:
       The number of cells in a PM domain specifier as per binding in [3].
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

WARNING: multiple messages have this Message-ID (diff)
From: Elliot Berman <eberman@codeaurora.org>
To: Mark Rutland <mark.rutland@arm.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Sudeep Holla <sudeep.holla@arm.com>
Cc: Trilok Soni <tsoni@codeaurora.org>,
	David Collins <collinsd@codeaurora.org>,
	linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Elliot Berman <eberman@codeaurora.org>,
	Prasad Sodagudi <psodagud@codeaurora.org>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/3] dt: psci: Add arm,psci-sys-reset2-type property
Date: Mon, 24 Feb 2020 12:57:36 -0800	[thread overview]
Message-ID: <1582577858-12410-2-git-send-email-eberman@codeaurora.org> (raw)
In-Reply-To: <1582577858-12410-1-git-send-email-eberman@codeaurora.org>

Some implementors of PSCI may relax the requirements of the PSCI
architectural warm reset. In order to comply with PSCI specification, a
different reset_type value must be used. The alternate PSCI
SYSTEM_RESET2 may be used in all warm/soft reboot scenarios, replacing
the architectural warm reset.

Signed-off-by: Elliot Berman <eberman@codeaurora.org>
---
 Documentation/devicetree/bindings/arm/psci.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/psci.yaml b/Documentation/devicetree/bindings/arm/psci.yaml
index 8ef8542..469256a2 100644
--- a/Documentation/devicetree/bindings/arm/psci.yaml
+++ b/Documentation/devicetree/bindings/arm/psci.yaml
@@ -102,6 +102,11 @@ properties:
       [1] Kernel documentation - ARM idle states bindings
         Documentation/devicetree/bindings/arm/idle-states.txt
 
+  arm,psci-sys-reset2-param:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+        reset_param value to use during a warm or soft reboot.
+
   "#power-domain-cells":
     description:
       The number of cells in a PM domain specifier as per binding in [3].
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2020-02-24 20:57 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-24 20:57 [PATCH v2 0/3] ARM PSCI: Add support for vendor-specific SYSTEM_RESET2 Elliot Berman
2020-02-24 20:57 ` Elliot Berman
2020-02-24 20:57 ` Elliot Berman [this message]
2020-02-24 20:57   ` [PATCH v2 1/3] dt: psci: Add arm,psci-sys-reset2-type property Elliot Berman
2020-02-25 10:55   ` Sudeep Holla
2020-02-25 10:55     ` Sudeep Holla
2020-02-26 12:09   ` Mark Rutland
2020-02-26 12:09     ` Mark Rutland
2020-02-27  0:44     ` Elliot Berman
2020-02-27  0:44       ` Elliot Berman
2020-02-24 20:57 ` [PATCH v2 2/3] firmware: psci: Add support for dt-supplied SYSTEM_RESET2 type Elliot Berman
2020-02-24 20:57   ` Elliot Berman
2020-02-25 11:03   ` Sudeep Holla
2020-02-25 11:03     ` Sudeep Holla
2020-02-26  1:37     ` Elliot Berman
2020-02-26  1:37       ` Elliot Berman
2020-02-26 11:59       ` Sudeep Holla
2020-02-26 11:59         ` Sudeep Holla
2020-02-26 12:02         ` Sudeep Holla
2020-02-26 12:02           ` Sudeep Holla
2020-02-26 12:10   ` Mark Rutland
2020-02-26 12:10     ` Mark Rutland
2020-02-24 20:57 ` [PATCH v2 3/3] arm64: dts: qcom: sm8250: Add vendor-specific PSCI system reset2 type Elliot Berman
2020-02-24 20:57   ` Elliot Berman

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