From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nicolin Chen Subject: [PATCH v3 1/2] dt-bindings: hwmon: ina3221: Add ti,single-shot property Date: Thu, 17 Jan 2019 15:12:52 -0800 Message-ID: <20190117231253.8828-2-nicoleotsuka@gmail.com> References: <20190117231253.8828-1-nicoleotsuka@gmail.com> Return-path: In-Reply-To: <20190117231253.8828-1-nicoleotsuka@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: jdelvare@suse.com, linux@roeck-us.net Cc: robh+dt@kernel.org, mark.rutland@arm.com, linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org By default, ina3221, as a hardware monitor, continuously measures the inputs and generates corresponding data. However, for battery powered devices, this mode might be power consuming. This patch adds a "ti,single-shot" property to allow changing the default continuous mode to single-shot operating mode. Signed-off-by: Nicolin Chen Reviewed-by: Rob Herring --- Changelog v2->v3: * Added "Reviewed-by" from Rob v1->v2: * N/A Documentation/devicetree/bindings/hwmon/ina3221.txt | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/hwmon/ina3221.txt b/Documentation/devicetree/bindings/hwmon/ina3221.txt index a7b25caa2b8e..fa63b6171407 100644 --- a/Documentation/devicetree/bindings/hwmon/ina3221.txt +++ b/Documentation/devicetree/bindings/hwmon/ina3221.txt @@ -6,6 +6,16 @@ Texas Instruments INA3221 Device Tree Bindings - reg: I2C address Optional properties: + - ti,single-shot: This chip has two power modes: single-shot (chip takes one + measurement and then shuts itself down) and continuous ( + chip takes continuous measurements). The continuous mode is + more reliable and suitable for hardware monitor type device, + but the single-shot mode is more power-friendly and useful + for battery-powered device which cares power consumptions + while still needs some measurements occasionally. + If this property is present, the single-shot mode will be + used, instead of the default continuous one for monitoring. + = The node contains optional child nodes for three channels = = Each child node describes the information of input source = -- 2.17.1