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diff --git a/Documentation/hwmon/da9055 b/Documentation/hwmon/da9055 deleted file mode 100644 index 855c3f536e00..000000000000 --- a/Documentation/hwmon/da9055 +++ /dev/null @@ -1,47 +0,0 @@ -Supported chips: - * Dialog Semiconductors DA9055 PMIC - Prefix: 'da9055' - Datasheet: Datasheet is not publicly available. - -Authors: David Dajun Chen <dchen@diasemi.com> - -Description ------------ - -The DA9055 provides an Analogue to Digital Converter (ADC) with 10 bits -resolution and track and hold circuitry combined with an analogue input -multiplexer. The analogue input multiplexer will allow conversion of up to 5 -different inputs. The track and hold circuit ensures stable input voltages at -the input of the ADC during the conversion. - -The ADC is used to measure the following inputs: -Channel 0: VDDOUT - measurement of the system voltage -Channel 1: ADC_IN1 - high impedance input (0 - 2.5V) -Channel 2: ADC_IN2 - high impedance input (0 - 2.5V) -Channel 3: ADC_IN3 - high impedance input (0 - 2.5V) -Channel 4: Internal Tjunc. - sense (internal temp. sensor) - -By using sysfs attributes we can measure the system voltage VDDOUT, -chip junction temperature and auxiliary channels voltages. - -Voltage Monitoring ------------------- - -Voltages are sampled in a AUTO mode it can be manually sampled too and results -are stored in a 10 bit ADC. - -The system voltage is calculated as: - Milli volt = ((ADC value * 1000) / 85) + 2500 - -The voltages on ADC channels 1, 2 and 3 are calculated as: - Milli volt = (ADC value * 1000) / 102 - -Temperature Monitoring ----------------------- - -Temperatures are sampled by a 10 bit ADC. Junction temperatures -are monitored by the ADC channels. - -The junction temperature is calculated: - Degrees celsius = -0.4084 * (ADC_RES - T_OFFSET) + 307.6332 -The junction temperature attribute is supported by the driver. |