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[V3,0/6] hwmon: Add support for Raspberry Pi voltage sensor

Message ID 1527276279-23876-1-git-send-email-stefan.wahren@i2se.com
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Series hwmon: Add support for Raspberry Pi voltage sensor | expand

Message

Stefan Wahren May 25, 2018, 7:24 p.m. UTC 
A common issue for the Raspberry Pi is an inadequate power supply. 
Noralf Trønnes started a discussion [1] about writing such undervoltage
conditions into the kernel log.

Changes in V3:
- rebase
- simplify probing

Changes in V2:
- simplified Kconfig dependency suggested by Robin Murphy
- replace dt-binding by probing from firmware driver
- add hwmon documentation
- minor improvements suggested by Guenter Roeck

[1] - https://github.com/raspberrypi/linux/issues/2367

Stefan Wahren (6):
  ARM: bcm2835: Add GET_THROTTLED firmware property
  hwmon: Add support for RPi voltage sensor
  firmware: raspberrypi: Register hwmon driver
  ARM: bcm2835_defconfig: Enable RPi voltage sensor
  ARM: multi_v7_defconfig: Enable RPi voltage sensor
  arm64: defconfig: Enable RPi voltage sensor

 Documentation/hwmon/raspberrypi-hwmon      |  22 ++++
 arch/arm/configs/bcm2835_defconfig         |   2 +-
 arch/arm/configs/multi_v7_defconfig        |   1 +
 arch/arm64/configs/defconfig               |   1 +
 drivers/firmware/raspberrypi.c             |  19 ++++
 drivers/hwmon/Kconfig                      |  10 ++
 drivers/hwmon/Makefile                     |   1 +
 drivers/hwmon/raspberrypi-hwmon.c          | 166 +++++++++++++++++++++++++++++
 include/soc/bcm2835/raspberrypi-firmware.h |   1 +
 9 files changed, 222 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/hwmon/raspberrypi-hwmon
 create mode 100644 drivers/hwmon/raspberrypi-hwmon.c

Comments

Eric Anholt June 22, 2018, 12:31 a.m. UTC | #1 
Stefan Wahren <stefan.wahren@i2se.com> writes:

> The patch enables the hwmon driver for the Raspberry Pi.
>
> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>

I've pulled this series to our -next branches now.