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| author | Florian Fainelli <f.fainelli@gmail.com> | 2018-07-09 15:22:16 +0300 |
|---|---|---|
| committer | Florian Fainelli <f.fainelli@gmail.com> | 2018-07-09 20:47:30 +0300 |
| commit | 5773898b3b32f0e66059031afca5406702e89f9d (patch) | |
| tree | 37594431453641e037908ab3c63cb2a21eec5bdc /Documentation | |
| parent | a334e45dcbff66ccbb6085ce5fdc2fcd861cc788 (diff) | |
| parent | a1547e0bca519b92b09ac5530c6accb7c3f69d1a (diff) | |
| download | linux-5773898b3b32f0e66059031afca5406702e89f9d.tar.xz | |
Merge tag 'bcm2835-drivers-next-2018-07-03' into drivers/next
This pull request brings in the new HWMON driver for getting
under-voltage detection from the Raspberry Pi firmware, and a change
from Kees to remove another instance of VLA stack usage.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/hwmon/raspberrypi-hwmon | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/hwmon/raspberrypi-hwmon b/Documentation/hwmon/raspberrypi-hwmon new file mode 100644 index 000000000000..3c92e2cb52d6 --- /dev/null +++ b/Documentation/hwmon/raspberrypi-hwmon @@ -0,0 +1,22 @@ +Kernel driver raspberrypi-hwmon +=============================== + +Supported boards: + * Raspberry Pi A+ (via GPIO on SoC) + * Raspberry Pi B+ (via GPIO on SoC) + * Raspberry Pi 2 B (via GPIO on SoC) + * Raspberry Pi 3 B (via GPIO on port expander) + * Raspberry Pi 3 B+ (via PMIC) + +Author: Stefan Wahren <stefan.wahren@i2se.com> + +Description +----------- + +This driver periodically polls a mailbox property of the VC4 firmware to detect +undervoltage conditions. + +Sysfs entries +------------- + +in0_lcrit_alarm Undervoltage alarm |