From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guillaume La Roque Subject: [PATCH 1/3] Documentation: dt-bindings: add the Amlogic Meson Temperature Sensor Date: Tue, 4 Jun 2019 16:47:12 +0200 Message-ID: <20190604144714.2009-2-glaroque@baylibre.com> References: <20190604144714.2009-1-glaroque@baylibre.com> Return-path: In-Reply-To: <20190604144714.2009-1-glaroque@baylibre.com> Sender: linux-kernel-owner@vger.kernel.org To: jic23@kernel.org, khilman@baylibre.com Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org 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 --- .../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 = ; + clocks = <&clkc CLKID_TS>; + status = "okay"; + #io-channel-cells = <1>; + amlogic,meson-ao-secure = <&sec_AO>; + amlogic,critical-temperature = <115000>; + }; -- 2.17.1