From: Neil Armstrong <narmstrong@baylibre.com>
To: lee.jones@linaro.org, rui.zhang@intel.com,
daniel.lezcano@linaro.org, amit.kucheria@verdurent.com,
srinivas.kandagatla@linaro.org, devicetree@vger.kernel.org
Cc: Neil Armstrong <narmstrong@baylibre.com>,
linux-amlogic@lists.infradead.org, linux-pm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Rob Herring <robh@kernel.org>
Subject: [PATCH v2 1/6] dt-bindings: mfd: add Khadas Microcontroller bindings
Date: Tue, 12 May 2020 15:26:08 +0200 [thread overview]
Message-ID: <20200512132613.31507-2-narmstrong@baylibre.com> (raw)
In-Reply-To: <20200512132613.31507-1-narmstrong@baylibre.com>
This Microcontroller is present on the Khadas VIM1, VIM2, VIM3 and Edge
boards.
It has multiple boot control features like password check, power-on
options, power-off control and system FAN control on recent boards.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
.../devicetree/bindings/mfd/khadas,mcu.yaml | 44 +++++++++++++++++++
1 file changed, 44 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
diff --git a/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
new file mode 100644
index 000000000000..a3b976f101e8
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/khadas,mcu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Khadas on-board Microcontroller Device Tree Bindings
+
+maintainers:
+ - Neil Armstrong <narmstrong@baylibre.com>
+
+description: |
+ Khadas embeds a microcontroller on their VIM and Edge boards adding some
+ system feature as PWM Fan control (for VIM2 rev14 or VIM3), User memory
+ storage, IR/Key resume control, system power LED control and more.
+
+properties:
+ compatible:
+ enum:
+ - khadas,mcu # MCU revision is discoverable
+
+ "#cooling-cells": # Only needed for boards having FAN control feature
+ const: 2
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ khadas_mcu: system-controller@18 {
+ compatible = "khadas,mcu";
+ reg = <0x18>;
+ #cooling-cells = <2>;
+ };
+ };
--
2.22.0
next prev parent reply other threads:[~2020-05-12 13:26 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-12 13:26 [PATCH v2 0/6] mfd: Add support for Khadas Microcontroller Neil Armstrong
2020-05-12 13:26 ` Neil Armstrong [this message]
2020-05-15 6:42 ` [PATCH v2 1/6] dt-bindings: mfd: add Khadas Microcontroller bindings Amit Kucheria
2020-05-12 13:26 ` [PATCH v2 2/6] mfd: add support for the Khadas System control Microcontroller Neil Armstrong
2020-05-20 9:01 ` Lee Jones
2020-06-02 8:26 ` Neil Armstrong
2020-06-02 8:33 ` Lee Jones
2020-05-12 13:26 ` [PATCH v2 3/6] thermal: add support for the MCU controlled FAN on Khadas boards Neil Armstrong
2020-05-15 6:41 ` Amit Kucheria
2020-05-15 8:05 ` Neil Armstrong
2020-06-02 8:26 ` Neil Armstrong
2020-05-12 13:26 ` [PATCH v2 4/6] nvmem: add support for the Khadas MCU Programmable User Memory Neil Armstrong
2020-05-13 10:34 ` Srinivas Kandagatla
2020-05-13 12:33 ` Neil Armstrong
2020-05-15 10:55 ` Srinivas Kandagatla
2020-06-02 8:29 ` Neil Armstrong
2020-05-12 13:26 ` [PATCH v2 5/6] MAINTAINERS: add myself as maintainer for Khadas MCU drivers Neil Armstrong
2020-05-12 13:26 ` [PATCH v2 6/6] arm64: dts: meson-khadas-vim3: add Khadas MCU nodes Neil Armstrong
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