From: Shawn Guo <shawn.guo@linaro.org>
To: Sebastian Reichel <sre@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>, Vinod Koul <vkoul@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-pm@vger.kernel.org, Shawn Guo <shawn.guo@linaro.org>
Subject: [PATCH 2/3] dt-bindings: qcom,pon: Add 'qcom,mode-in-imem' support
Date: Sun, 4 Jul 2021 15:40:44 +0800 [thread overview]
Message-ID: <20210704074045.21643-3-shawn.guo@linaro.org> (raw)
In-Reply-To: <20210704074045.21643-1-shawn.guo@linaro.org>
It's not always the case that reboot mode value gets stored in PON
register. For example, Sony Xperia M4 Aqua phone (MSM8939) uses a
different set of mode value and stores them in IMEM. Add property
'qcom,mode-in-imem' to distinguish this mechanism from the existing one.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
.../bindings/power/reset/qcom,pon.yaml | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml b/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
index 7764c804af1d..a6270e39b7a2 100644
--- a/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
+++ b/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
@@ -23,6 +23,10 @@ properties:
reg:
maxItems: 1
+ qcom,mode-in-imem:
+ description: Reboot mode is stored in IMEM rather than PON register
+ type: boolean
+
patternProperties:
"^mode-.+":
$ref: /schemas/types.yaml#/definitions/uint32
@@ -35,6 +39,7 @@ required:
additionalProperties: false
examples:
+ # Example 1: Reboot mode is stored in PON register
- |
pmic {
#address-cells = <1>;
@@ -47,3 +52,17 @@ examples:
mode-recovery = <0x1>;
};
};
+ # Example 2: Reboot mode is stored in IMEM
+ - |
+ pmic {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pon@800 {
+ compatible = "qcom,pm8916-pon";
+ reg = <0x860065c>;
+ qcom,mode-in-imem;
+ mode-bootloader = <0x77665500>;
+ mode-recovery = <0x77665502>;
+ };
+ };
--
2.17.1
next prev parent reply other threads:[~2021-07-04 7:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-04 7:40 [PATCH 0/3] Add 'qcom,mode-in-imem' support in PON driver Shawn Guo
2021-07-04 7:40 ` [PATCH 1/3] dt-bindings: power: reset: Convert qcom,pon to DT schema Shawn Guo
2021-07-04 7:40 ` Shawn Guo [this message]
2021-07-04 9:36 ` [PATCH 2/3] dt-bindings: qcom,pon: Add 'qcom,mode-in-imem' support Stephan Gerhold
2021-07-05 2:41 ` Shawn Guo
2021-07-04 7:40 ` [PATCH 3/3] power: reset: qcom-pon: Add support for 'qcom,mode-in-imem' Shawn Guo
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