Difference between revisions of "APF51 PMIC"
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(→ADC / Temperature) |
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PMIC | PMIC | ||
# cat /sys/class/hwmon/hwmon0/device/temp1_input | # cat /sys/class/hwmon/hwmon0/device/temp1_input | ||
| − | 65720 | + | 65720 (m°C, internal temp) |
| + | |||
# cat /sys/class/hwmon/hwmon0/device/temp2_label | # cat /sys/class/hwmon/hwmon0/device/temp2_label | ||
Battery | Battery | ||
# cat /sys/class/hwmon/hwmon0/device/temp2_input | # cat /sys/class/hwmon/hwmon0/device/temp2_input | ||
| − | 1327 | + | 1327 (a battery should be connected) |
| + | </pre> | ||
| + | * analog values: | ||
| + | ** ''in[0-3]_input'' corresponds to AUXADCIN[1-4] of APF51 connector | ||
| + | * ''in[4-8]_input'' are monitoring system voltage: | ||
| + | <pre class="apf"> | ||
| + | # cat /sys/class/hwmon/hwmon0/device/in4_label | ||
| + | SYSVDD | ||
| + | # cat /sys/class/hwmon/hwmon0/device/in5_label | ||
| + | USB | ||
| + | # cat /sys/class/hwmon/hwmon0/device/in6_label | ||
| + | Battery | ||
| + | # cat /sys/class/hwmon/hwmon0/device/in7_label | ||
| + | WALL | ||
| + | # cat /sys/class/hwmon/hwmon0/device/in8_label | ||
| + | Backup battery | ||
</pre> | </pre> | ||
| − | |||
==Touchscreen== | ==Touchscreen== | ||
Revision as of 16:44, 4 May 2011
Page under construction...
Informations on this page are not guaranteed !!
APF51 has a Wolfson WM8311 Power Management IC (PMIC), which adds to the i.MX51 some useful functionalities. This page explain how to use them.
Contents
RTC
Voltage supervisor / Battery charger
- Load driver:
# modprobe wm831x_power wm831x 1-0034: No battery charger configuration
- If power supplied with Wall (main power supply):
# cat /sys/class/power_supply/wm831x-wall/online 1 # cat /sys/class/power_supply/wm831x-wall/voltage_now 4550290 (? micro volts ?)
- others:
# ls /sys/class/power_supply/ wm831x-battery wm831x-usb wm831x-wall
ADC / Temperature
- Load driver:
# modprobe wm831x-hwmon
- Show what we can do:
# ls /sys/class/hwmon/hwmon0/device/ driver in3_input in6_input in8_label temp1_input hwmon in4_input in6_label modalias temp1_label in0_input in4_label in7_input name temp2_input in1_input in5_input in7_label power temp2_label in2_input in5_label in8_input subsystem uevent
- temperatures:
# cat /sys/class/hwmon/hwmon0/device/temp1_label PMIC # cat /sys/class/hwmon/hwmon0/device/temp1_input 65720 (m°C, internal temp) # cat /sys/class/hwmon/hwmon0/device/temp2_label Battery # cat /sys/class/hwmon/hwmon0/device/temp2_input 1327 (a battery should be connected)
- analog values:
- in[0-3]_input corresponds to AUXADCIN[1-4] of APF51 connector
- in[4-8]_input are monitoring system voltage:
# cat /sys/class/hwmon/hwmon0/device/in4_label SYSVDD # cat /sys/class/hwmon/hwmon0/device/in5_label USB # cat /sys/class/hwmon/hwmon0/device/in6_label Battery # cat /sys/class/hwmon/hwmon0/device/in7_label WALL # cat /sys/class/hwmon/hwmon0/device/in8_label Backup battery
Touchscreen
- load driver:
# modprobe wm831x-ts
- then everything else is generic and driven by Tslib
GPIO
TBDL
Links
- WM8311 Datasheet:
