71 lines
2.2 KiB
Diff
71 lines
2.2 KiB
Diff
From 5bf715958613e73008ed107182306fb4f37024e5 Mon Sep 17 00:00:00 2001
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From: Stefan Wahren <stefan.wahren@i2se.com>
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Date: Mon, 13 Jan 2020 19:56:15 +0100
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Subject: [PATCH] dt-bindings: Add Broadcom AVS RO thermal
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Commit ee31ff373da6602e7a4e60fe11322b41ac38eb22 upstream.
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Since the BCM2711 doesn't have a AVS TMON block, the thermal information
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must be retrieved from the AVS ring oscillator block. This block is part
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of the AVS monitor which contains a bunch of raw sensors.
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Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
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Reviewed-by: Rob Herring <robh@kernel.org>
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Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
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Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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Link: https://lore.kernel.org/r/1578941778-23321-2-git-send-email-stefan.wahren@i2se.com
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Signed-off-by: Chen-Yu Tsai <wens@csie.org>
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---
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.../bindings/thermal/brcm,avs-ro-thermal.yaml | 45 +++++++++++++++++++
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1 file changed, 45 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml
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@@ -0,0 +1,45 @@
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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+%YAML 1.2
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+---
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+$id: http://devicetree.org/schemas/thermal/brcm,avs-ro-thermal.yaml#
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+$schema: http://devicetree.org/meta-schemas/core.yaml#
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+
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+title: Broadcom AVS ring oscillator thermal
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+
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+maintainers:
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+ - Stefan Wahren <wahrenst@gmx.net>
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+
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+description: |+
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+ The thermal node should be the child of a syscon node with the
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+ required property:
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+
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+ - compatible: Should be one of the following:
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+ "brcm,bcm2711-avs-monitor", "syscon", "simple-mfd"
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+
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+ Refer to the the bindings described in
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+ Documentation/devicetree/bindings/mfd/syscon.txt
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+
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+properties:
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+ compatible:
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+ const: brcm,bcm2711-thermal
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+
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+ reg:
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+ maxItems: 1
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+
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+required:
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+ - compatible
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+ - reg
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+
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+examples:
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+ - |
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+ avs-monitor@7d5d2000 {
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+ compatible = "brcm,bcm2711-avs-monitor",
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+ "syscon", "simple-mfd";
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+ reg = <0x7d5d2000 0xf00>;
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+
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+ thermal: thermal {
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+ compatible = "brcm,bcm2711-thermal";
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+ #thermal-sensor-cells = <0>;
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+ };
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+ };
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+...
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