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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 v3 1/3] dt: psci: Add arm,psci-sys-reset2-vendor-param property
Date: Thu,  5 Mar 2020 11:05:27 -0800	[thread overview]
Message-ID: <1583435129-31356-2-git-send-email-eberman@codeaurora.org> (raw)
In-Reply-To: <1583435129-31356-1-git-send-email-eberman@codeaurora.org>

Some implementors of PSCI may wish to use a different reset type than
SYSTEM_WARM_RESET. For instance, Qualcomm SoCs support an alternate
reset_type which may be used in more warm reboot scenarios than
SYSTEM_WARM_RESET permits (e.g. to reboot into recovery mode).

Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
---
 Documentation/devicetree/bindings/arm/psci.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/psci.yaml b/Documentation/devicetree/bindings/arm/psci.yaml
index 8ef8542..1a9d2dd 100644
--- a/Documentation/devicetree/bindings/arm/psci.yaml
+++ b/Documentation/devicetree/bindings/arm/psci.yaml
@@ -102,6 +102,13 @@ properties:
       [1] Kernel documentation - ARM idle states bindings
         Documentation/devicetree/bindings/arm/idle-states.txt
 
+  arm,psci-sys-reset2-vendor-param:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: |
+        Vendor-specific reset type parameter to use for SYSTEM_RESET2 during
+        a warm or soft reboot. If no value is provided, then architectural
+        reset type SYSTEM_WARM_RESET is used.
+
   "#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

  reply	other threads:[~2020-03-05 19:05 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-05 19:05 [PATCH v3 0/3] ARM PSCI: Add support for vendor-specific SYSTEM_RESET2 Elliot Berman
2020-03-05 19:05 ` Elliot Berman [this message]
2020-03-20 12:01   ` [PATCH v3 1/3] dt: psci: Add arm,psci-sys-reset2-vendor-param property Mark Rutland
2023-06-13 20:54     ` Elliot Berman
2020-03-05 19:05 ` [PATCH v3 2/3] firmware: psci: Add support for dt-supplied SYSTEM_RESET2 type Elliot Berman
2020-03-20 12:04   ` Mark Rutland
2020-03-05 19:05 ` [PATCH v3 3/3] arm64: dts: qcom: sm8250: Add vendor-specific PSCI system reset2 type Elliot Berman

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