diff options
| author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-04-17 06:46:29 -0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2019-04-17 10:37:23 -0700 |
| commit | 7ebd8b66dd9e5a0b65e5ee5e2b8e7ca382ec97b7 (patch) | |
| tree | 9db30159bd32bec125c7d49e80a79bb7c4da0c8e /Documentation/hwmon/da9055 | |
| parent | b04f2f7d387b3160883c2a1f5e2285483a791e82 (diff) | |
docs: hwmon: Add an index file and rename docs to *.rst
Now that all files were converted to ReST format, rename them
and add an index.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon/da9055')
| -rw-r--r-- | Documentation/hwmon/da9055 | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/Documentation/hwmon/da9055 b/Documentation/hwmon/da9055 deleted file mode 100644 index beae271a3312..000000000000 --- a/Documentation/hwmon/da9055 +++ /dev/null @@ -1,57 +0,0 @@ -Kernel driver da9055 -==================== - -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. |