From: Guillaume La Roque <glaroque@baylibre.com>
To: jic23@kernel.org, khilman@baylibre.com
Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-amlogic@lists.infradead.org
Subject: [PATCH 1/3] Documentation: dt-bindings: add the Amlogic Meson Temperature Sensor
Date: Tue, 4 Jun 2019 16:47:12 +0200 [thread overview]
Message-ID: <20190604144714.2009-2-glaroque@baylibre.com> (raw)
In-Reply-To: <20190604144714.2009-1-glaroque@baylibre.com>
This adds the devicetree binding documentation for the Temperature
Sensor found in the Amlogic Meson G12 SoCs.
Currently only the G12A SoCs are supported.
Signed-off-by: Guillaume La Roque <glaroque@baylibre.com>
---
.../iio/temperature/amlogic,meson-tsensor.txt | 31 +++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/temperature/amlogic,meson-tsensor.txt
diff --git a/Documentation/devicetree/bindings/iio/temperature/amlogic,meson-tsensor.txt b/Documentation/devicetree/bindings/iio/temperature/amlogic,meson-tsensor.txt
new file mode 100644
index 000000000000..d064db0e9cac
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/temperature/amlogic,meson-tsensor.txt
@@ -0,0 +1,31 @@
+* Amlogic Meson Temperature Sensor
+
+Required properties:
+- compatible: depending on the SoC and the position of the sensor,
+ this should be one of:
+ - "amlogic,meson-g12a-cpu-tsensor" for the CPU G12A SoC sensor
+ - "amlogic,meson-g12a-ddr-tsensor" for the DDR G12A SoC sensor
+ followed by the common :
+ - "amlogic,meson-g12a-tsensor" for G12A SoC family
+- reg: the physical base address and length of the registers
+- interrupts: the interrupt indicating end of sampling
+- clocks: phandle identifier for the reference clock of temperature sensor
+- #io-channel-cells: must be 1, see ../iio-bindings.txt
+- amlogic,ao-secure: phandle to the ao-secure syscon
+
+Optional properties:
+- amlogic,critical-temperature: temperature value in milli degrees Celsius
+ to set automatic reboot on too high temperature
+
+Example:
+ cpu_temp: temperature-sensor@ff634800 {
+ compatible = "amlogic,meson-g12a-cpu-tsensor",
+ "amlogic,meson-g12a-tsensor";
+ reg = <0x0 0xff634800 0x0 0x50>;
+ interrupts = <GIC_SPI 35 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc CLKID_TS>;
+ status = "okay";
+ #io-channel-cells = <1>;
+ amlogic,meson-ao-secure = <&sec_AO>;
+ amlogic,critical-temperature = <115000>;
+ };
--
2.17.1
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next prev parent reply other threads:[~2019-06-04 14:47 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-04 14:47 [PATCH 0/3] Add support of New Amlogic temperature sensor for G12A SoCs Guillaume La Roque
2019-06-04 14:47 ` Guillaume La Roque [this message]
2019-06-06 19:16 ` [PATCH 1/3] Documentation: dt-bindings: add the Amlogic Meson Temperature Sensor Martin Blumenstingl
2019-06-08 13:10 ` Jonathan Cameron
2019-06-11 11:01 ` Neil Armstrong
2019-06-11 17:57 ` Martin Blumenstingl
2019-06-08 13:08 ` Jonathan Cameron
2019-06-04 14:47 ` [PATCH 2/3] arm64: dts: meson: g12a: add temperature sensor node Guillaume La Roque
2019-06-04 14:47 ` [PATCH 3/3] iio: temperature: add a driver for the temperature sensor found in Amlogic Meson G12 SoCs Guillaume La Roque
2019-06-06 19:40 ` Martin Blumenstingl
2019-06-08 13:29 ` Jonathan Cameron
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