From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1168316AbdDXKBo (ORCPT ); Mon, 24 Apr 2017 06:01:44 -0400 Received: from mailout2.samsung.com ([203.254.224.25]:36875 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1168293AbdDXKBc (ORCPT ); Mon, 24 Apr 2017 06:01:32 -0400 X-AuditID: b6c32a59-f79166d0000017ce-12-58fdccf80c26 From: Bartlomiej Zolnierkiewicz To: Thierry Reding , Jean Delvare , Guenter Roeck , Kamil Debski Cc: Tomasz Figa , linux-pwm@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, b.zolnierkie@samsung.com Subject: [PATCH v2 0/3] pwm: pwm-samsung: fix suspend/resume support Date: Mon, 24 Apr 2017 12:01:06 +0200 Message-id: <1493028069-32003-1-git-send-email-b.zolnierkie@samsung.com> X-Mailer: git-send-email 1.9.1 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrAIsWRmVeSWpSXmKPExsWy7bCmuu6PM38jDLa16lhsnLGe1eLshECL mSfaWS3aX29ltLi8aw6bxd27qxgtZpzfx2TxZOEZJoufu+axWKza9YfRgctj56y77B47vzew e/RtWcXosX7LVRaPz5vkPK4caWQPYIvisklJzcksSy3St0vgyrh6ZAd7QRdvxeE5U5kaGJ9z dTFyckgImEhM3LeNBcIWk7hwbz1bFyMXh5DAUkaJc0uPQTmfGSWe75zN2sXIAdaxcZkbRHwt o0TL/lWsEM4vRon7+4+wgYxiE7CSmNi+ihEkISIwnVHi/JV9zCAJZoF9jBLvzpWA2MICLhLf Vl9lApnKIqAqcXqOEkiYV8BDoqXhChPESXISJ49NBlsgIfCeTaLt9F1miCtkJTYdYIaocZFY d2MKG4QtLPHq+BZ2CFtKortjFpQNdMP23xIQczYzSqzaPQEqYS1x+PhFVojb+CR6fz9hgpjP K9HRJgRR4iFx69MhRoiwo8SdBi2QsJBArMTEzw+YJzBKL2BkWMUollpQnJueWmxaYKpXnJhb XJqXrpecn7uJERzPWpE7GK/MDDrEKMDBqMTDu8L2b4QQa2JZcWXuIUYJDmYlEd7uFUAh3pTE yqrUovz4otKc1OJDjNIcLErivBorr0UICaQnlqRmp6YWpBbBZJk4OKUaGFsvRf0QKz2QFqC7 59/We56rr0Wc+dPfUfKfw7JyT6v76nwP/oVul6L/d5XfU1Wwuup18dFRPg1DNifTT8Fb76zI 6Ys+PjP79+GD4a5H34hm6syd7G19YF6cgu5l7ylxme/mMVyUT3f6+lI2O+p0vueF1Pa7ptbF 0vOT1I7fCD4Teen/kTUd9kosxRmJhlrMRcWJAMpv3/njAgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrJLMWRmVeSWpSXmKPExsVy+t9jQd0fZ/5GGNy4IW2xccZ6VouzEwIt Zp5oZ7Vof72V0eLyrjlsFnfvrmK0mHF+H5PFk4VnmCx+7prHYrFq1x9GBy6PnbPusnvs/N7A 7tG3ZRWjx/otV1k8Pm+S87hypJE9gC3KzSYjNTEltUghNS85PyUzL91WKTTETddCSSEvMTfV VilC1zckSEmhLDGnFMgzMkADDs4B7sFK+nYJbhlXj+xgL+jirTg8ZypTA+Nzri5GDg4JAROJ jcvcuhg5gUwxiQv31rOB2EICqxkl3j9N7WLkArJ/MUocWj2HESTBJmAlMbF9FSNIQkRgOqPE jJnbWUEcZoF9jBKru6Ywg1QJC7hIfFt9lQlkA4uAqsTpOUogYV4BD4mWhitMENvkJE4em8w6 gZF7ASPDKkau1ILi3PTcYqMCo02MwGDddlgrYAdj07noQ4wCHIxKPLwbfv6JEGJNLCuuzD3E KMHBrCTC273ib4QQb0piZVVqUX58UWlOavEhRlOgjROZpUST84GRlFcSb2hiaWRiYGZmaGRg bKYkzjsh8EuEkEB6YklqdmpqQWoRTB8TB6dUA6NW6NvkPWxXE/R2zvBylvMVPJHNdXIxx3ex jiC+winKfUbsZ/Turuy6v1RSf9YJrZ8zNzH8+62vv03uOX/O++wMCaYnW9PYV90/U1L2WUKn RfrCHSv5qfYb90+8oPdF6VZZPZMig5tOrFrBLq0Xt32nqfI8CglfwRwu5FUz6c0epp/nvl1l uqvEUpyRaKjFXFScCABwm27NbAIAAA== X-MTR: 20000000000000000@CPGS X-CMS-MailID: 20170424100128epcas5p20396f75d5626a320a9eb11d89ae87ac5 X-Msg-Generator: CA X-Sender-IP: 182.195.42.80 X-Local-Sender: =?UTF-8?B?QmFydGxvbWllaiBab2xuaWVya2lld2ljehtTUlBPTC1LZXJu?= =?UTF-8?B?ZWwgKFRQKRvsgrzshLHsoITsnpAbU2VuaW9yIFNvZnR3YXJlIEVuZ2luZWVy?= X-Global-Sender: =?UTF-8?B?QmFydGxvbWllaiBab2xuaWVya2lld2ljehtTUlBPTC1LZXJu?= =?UTF-8?B?ZWwgKFRQKRtTYW1zdW5nIEVsZWN0cm9uaWNzG1NlbmlvciBTb2Z0d2FyZSBF?= =?UTF-8?B?bmdpbmVlcg==?= X-Sender-Code: =?UTF-8?B?QzEwG0VIURtDMTBDRDAyQ0QwMjczOTI=?= CMS-TYPE: 105P X-CMS-RootMailID: 20170424100128epcas5p20396f75d5626a320a9eb11d89ae87ac5 X-RootMTR: 20170424100128epcas5p20396f75d5626a320a9eb11d89ae87ac5 References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, This patchset fixes suspend/resume support in pwm-samsung driver (which has an effect of fixing suspend/resume support for PWM client drivers such as pwm-fan one). Then it removes no longer needed suspend/resume code from pwm-fan driver. It was tested on Odroid-XU3 board (with few extra patches adding SoC/board suspend/resume support which are not in upstream yet). The initial issue that has been observed on this configuration was that after suspend/resume operation the fan was turned on (while the thermal code had explicitly disabled the fan by calling back into pwm-fan driver before the suspend/resume). Fixing this in the pwm-fan driver itself is not feasible since pwm_config()/pwm_disable() & co. API saves information about current state and doesn't pass the relevant values to PWM core if they are identical to the ones used previously (moreover PWM core itself does the same before calling into the PWM hardware driver). Changes since v1 (https://www.spinics.net/lists/kernel/msg2480445.html): - added Acked-by from Guenter to patch #3 - fixed patch #2 to use the right variable (chip -> our_chip) Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics Bartlomiej Zolnierkiewicz (3): pwm: pwm-samsung: remove redundant checks from pwm_samsung_config() pwm: pwm-samsung: fix suspend/resume support hwmon: pwm-fan: remove no longer needed suspend/resume code drivers/hwmon/pwm-fan.c | 32 ---------------------- drivers/pwm/pwm-samsung.c | 70 +++++++++++++++++++++++------------------------ 2 files changed, 35 insertions(+), 67 deletions(-) -- 1.9.1