From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on archive.lwn.net X-Spam-Level: X-Spam-Status: No, score=-5.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham autolearn_force=no version=3.4.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by archive.lwn.net (Postfix) with ESMTP id 949A57D048 for ; Tue, 22 May 2018 11:24:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751361AbeEVLYK (ORCPT ); Tue, 22 May 2018 07:24:10 -0400 Received: from mout.kundenserver.de ([212.227.126.187]:60191 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751346AbeEVLYI (ORCPT ); Tue, 22 May 2018 07:24:08 -0400 Received: from localhost.localdomain ([37.4.249.136]) by mrelayeu.kundenserver.de (mreue003 [212.227.15.167]) with ESMTPSA (Nemesis) id 0LoMMX-1g0Rb61dCT-00gE3A; Tue, 22 May 2018 13:22:25 +0200 From: Stefan Wahren To: Rob Herring , Mark Rutland , Jean Delvare , Guenter Roeck , Jonathan Corbet , Eric Anholt Cc: Florian Fainelli , Ray Jui , Scott Branden , Phil Elwell , bcm-kernel-feedback-list@broadcom.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, linux-hwmon@vger.kernel.org, linux-doc@vger.kernel.org, Stefan Wahren Subject: [PATCH RFC V2 0/6] hwmon: Add support for Raspberry Pi voltage sensor Date: Tue, 22 May 2018 13:21:46 +0200 Message-Id: <1526988112-4021-1-git-send-email-stefan.wahren@i2se.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:KrmkHsDu3ncsQu1sr838ut+zce1FCtAf62tolhqu10WIDT3WnRK lCJksvlSu3Ax/mbNW6XqfVzG7COg41Cxl3Uepbjnwlf4WbMt7fC9jyh7VQOQaTianqxv5dy sOhQKzwBAyZDKWKnhLbpOzZaU5fEHW+oaKpkf0Wnj/hX87nPNlXDVb8EeOWbUyVHiwjIEaF Tfo3TGziPoyKLnrI5LcsQ== X-UI-Out-Filterresults: notjunk:1;V01:K0:WVhBCdj83Nk=:fSetgbt2ffvpdZgidsktbr Q7nSZyaQ60N/UD5mfrD/rov7yWh1K+tu2lOCHrvYOi0E/6L90kAFvA6i+IVPH6DlR9lfkpJnl eU0Tot4k463NNFTKkIleUcJaW1h30/8/FfVYkMgK6Fu786D2F23KxlSFvrjScw+gOtaizY3+b SiWR4fFAEgL61UZUxRlsBjXAkVpcidTbUuV+ldQd+7g2Zk7Z6eZYpjzgA0BbUnEan0xY7duN0 6SK+QMwPsG60sUl9pFvIRtV5XWA3jnCAq0jMNy1njJH8UkcI4DTsBKLInBnIKBON99EoO9qW5 lW1uBqcHRNLLjIOGuuUtWwDDz/CkiRM/wrcsctlEv2mG0lv07rrYvrdelSEmA3SOPqWQDCqLA DhJMvsw65yht5pDpXxLHGoogY1iC0GIUELEULi+DbydUXgp/Rb6NA02ZHf0EC6PML7UQpRLd0 CZBTWAhYEGa2OqgZNFS+2cQ9vHf/oR4s9zaPGPFYWCehtlU4Heyk+mY31pT//RImIp/jeTwtN BqBShz1z2RWOvmyk0LPMfM12zc4Jd2f1Kzz4gMxOS+wz1BuNzDtUer1Lx0MaOprQZEg7YWMgv eNgWFkiWeJQ8Rp6Otu3kW9T5Q1cEselKipOT+RcaJP4OCMsLrUClc3EhRLSjG8p5pD3K0ATjl O2XQwlnhb/OtD3hAoNNye6xGCq1xOLoXVTiBbcSEzSwDFQKWh0OFUniePQZoauNZvTOWsh15o tBJUgKY+Es7gPGL4 Sender: linux-doc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-doc@vger.kernel.org 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 -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html