From: Tim Harvey <tharvey@gateworks.com>
To: Lee Jones <lee.jones@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Mark Brown <broonie@kernel.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-hwmon@vger.kernel.org, linux-input@vger.kernel.org
Subject: [PATCH v2 1/4] dt-bindings: mfd: Add Gateworks System Controller bindings
Date: Mon, 5 Mar 2018 14:02:38 -0800 [thread overview]
Message-ID: <1520287361-12569-2-git-send-email-tharvey@gateworks.com> (raw)
In-Reply-To: <1520287361-12569-1-git-send-email-tharvey@gateworks.com>
This patch adds documentation of device-tree bindings for the
Gateworks System Controller (GSC).
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
---
Documentation/devicetree/bindings/mfd/gsc.txt | 159 ++++++++++++++++++++++++++
1 file changed, 159 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/gsc.txt
diff --git a/Documentation/devicetree/bindings/mfd/gsc.txt b/Documentation/devicetree/bindings/mfd/gsc.txt
new file mode 100644
index 0000000..fe5d114
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/gsc.txt
@@ -0,0 +1,159 @@
+Gateworks System Controller multi-function device
+
+The GSC is a Multifunction I2C slave device with the following submodules:
+- WDT
+- GPIO
+- Pushbutton controller
+- HWMON
+
+Required properties:
+- compatible : Must be "gw,gsc_v1", "gw,gsc_v2", "gw,gsc_v3"
+- reg: I2C address of the device
+- interrupts: interrupt triggered by GSC_IRQ# signal
+- interrupt-parent: Interrupt controller GSC is connected to
+- #interrupt-cells: should be <1>, index of the interrupt within the
+ controller, in accordance with the "one cell" variant of
+ <devicetree/bindings/interrupt-controller/interrupt.txt>
+
+Optional nodes:
+* watchdog:
+The GSC provides a Watchdog monitor which can power cycle the board's
+primary power supply on most board models when tripped.
+
+Required properties:
+- compatible: must be "gw,gsc-watchdog"
+
+* input:
+The GSC provides an input device capable of dispatching Linux Input events
+for user pushbutton events, tamper switch events, etc.
+
+Required properties:
+- compatible: must be "gw,gsc-input"
+
+* hwmon:
+The GSC provides a set of Analog to Digitcal Converter (ADC) pins used for
+temperature and/or voltage monitoring.
+
+Required properties:
+- compatible: must be "gw,gsc-hwmon"
+
+Example:
+
+ gsc: gsc@20 {
+ compatible = "gw,gsc_v2";
+ reg = <0x20>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <4 GPIO_ACTIVE_LOW>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ gsc_input {
+ compatible = "gw,gsc-input";
+ };
+
+ gsc_watchdog {
+ compatible = "gw,gsc-watchdog";
+ };
+
+ gsc_hwmon {
+ compatible = "gw,gsc-hwmon";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hwmon@0 { /* A0: Board Temperature */
+ type = <0>;
+ reg = <0x00>;
+ label = "temp";
+ };
+
+ hwmon@1 { /* A1: Input Voltage */
+ type = <1>;
+ reg = <0x02>;
+ label = "Vin";
+ };
+
+ hwmon@2 { /* A2: 5P0 */
+ type = <1>;
+ reg = <0x0b>;
+ label = "5P0";
+ };
+
+ hwmon@4 { /* A4: 0-5V input */
+ type = <1>;
+ reg = <0x14>;
+ label = "ANL0";
+ };
+
+ hwmon@5 { /* A5: 2P5 PCIe/GigE */
+ type = <1>;
+ reg = <0x23>;
+ label = "2P5";
+ };
+
+ hwmon@6 { /* A6: 1P8 Aud/Vid */
+ type = <1>;
+ reg = <0x1d>;
+ label = "1P8";
+ };
+
+ hwmon@7 { /* A7: GPS */
+ type = <1>;
+ reg = <0x26>;
+ label = "GPS";
+ };
+
+ hwmon@12 { /* A12: VDD_CORE */
+ type = <1>;
+ reg = <0x3>;
+ label = "VDD_CORE";
+ };
+
+ hwmon@13 { /* A13: VDD_SOC */
+ type = <1>;
+ reg = <0x11>;
+ label = "VDD_SOC";
+ };
+
+ hwmon@14 { /* A14: 1P0 PCIe SW */
+ type = <1>;
+ reg = <0x20>;
+ label = "1P0";
+ };
+
+ hwmon@15 { /* fan0 */
+ type = <2>;
+ reg = <0x2c>;
+ label = "fan_50p";
+ };
+
+ hwmon@16 { /* fan1 */
+ type = <2>;
+ reg = <0x2e>;
+ label = "fan_60p";
+ };
+
+ hwmon@17 { /* fan2 */
+ type = <2>;
+ reg = <0x30>;
+ label = "fan_70p";
+ };
+
+ hwmon@18 { /* fan3 */
+ type = <2>;
+ reg = <0x32>;
+ label = "fan_80p";
+ };
+
+ hwmon@19 { /* fan4 */
+ type = <2>;
+ reg = <0x34>;
+ label = "fan_90p";
+ };
+
+ hwmon@20 { /* fan5 */
+ type = <2>;
+ reg = <0x36>;
+ label = "fan_100p";
+ };
+ };
+ };
--
2.7.4
next prev parent reply other threads:[~2018-03-05 22:04 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-05 22:02 [PATCH v2 0/4] Add support for the Gateworks System Controller Tim Harvey
2018-03-05 22:02 ` Tim Harvey [this message]
2018-03-09 23:14 ` [PATCH v2 1/4] dt-bindings: mfd: Add Gateworks System Controller bindings Rob Herring
2018-03-23 17:11 ` Tim Harvey
2018-03-10 13:57 ` Fabio Estevam
2018-03-05 22:02 ` [PATCH v2 2/4] mfd: add Gateworks System Controller core driver Tim Harvey
2018-03-12 14:41 ` Lee Jones
2018-03-05 22:02 ` [PATCH v2 3/4] hwmon: add Gateworks System Controller support Tim Harvey
2018-03-05 23:12 ` Guenter Roeck
2018-03-05 22:02 ` [PATCH v2 4/4] input: misc: Add " Tim Harvey
2018-03-10 18:45 ` Dmitry Torokhov
2018-03-14 17:13 ` Tim Harvey
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