From: Stefan Wahren <stefan.wahren@i2se.com>
To: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>,
Jonathan Corbet <corbet@lwn.net>, Eric Anholt <eric@anholt.net>
Cc: linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org,
Florian Fainelli <f.fainelli@gmail.com>,
Scott Branden <sbranden@broadcom.com>,
linux-doc@vger.kernel.org, Ray Jui <rjui@broadcom.com>,
Stefan Wahren <stefan.wahren@i2se.com>,
Phil Elwell <phil@raspberrypi.org>,
bcm-kernel-feedback-list@broadcom.com,
linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH RFC V2 0/6] hwmon: Add support for Raspberry Pi voltage sensor
Date: Tue, 22 May 2018 13:21:46 +0200 [thread overview]
Message-ID: <1526988112-4021-1-git-send-email-stefan.wahren@i2se.com> (raw)
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.
This series is a draft to upstream the resulting kernel patch and is not
intended for 4.18.
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 | 168 +++++++++++++++++++++++++++++
include/soc/bcm2835/raspberrypi-firmware.h | 1 +
9 files changed, 224 insertions(+), 1 deletion(-)
create mode 100644 Documentation/hwmon/raspberrypi-hwmon
create mode 100644 drivers/hwmon/raspberrypi-hwmon.c
--
2.7.4
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next reply other threads:[~2018-05-22 11:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-22 11:21 Stefan Wahren [this message]
2018-05-22 11:21 ` [PATCH RFC V2 1/6] ARM: bcm2835: Add GET_THROTTLED firmware property Stefan Wahren
2018-05-22 11:21 ` [PATCH RFC V2 2/6] hwmon: Add support for RPi voltage sensor Stefan Wahren
2018-05-22 13:41 ` Guenter Roeck
2018-05-22 13:51 ` Stefan Wahren
2018-05-22 14:10 ` Guenter Roeck
2018-05-22 19:31 ` Stefan Wahren
2018-05-23 12:12 ` Robin Murphy
2018-05-23 18:12 ` Guenter Roeck
2018-05-22 11:21 ` [PATCH RFC V2 3/6] firmware: raspberrypi: Register hwmon driver Stefan Wahren
2018-05-22 11:21 ` [PATCH RFC V2 4/6] ARM: bcm2835_defconfig: Enable RPi voltage sensor Stefan Wahren
2018-05-22 11:21 ` [PATCH RFC V2 5/6] ARM: multi_v7_defconfig: " Stefan Wahren
2018-05-22 11:21 ` [PATCH RFC V2 6/6] arm64: defconfig: " Stefan Wahren
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