From patchwork Thu Jun 3 11:51:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wilken Gottwalt X-Patchwork-Id: 12297011 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EFF52C47096 for ; Thu, 3 Jun 2021 11:51:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D9607613BF for ; Thu, 3 Jun 2021 11:51:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230156AbhFCLwu (ORCPT ); Thu, 3 Jun 2021 07:52:50 -0400 Received: from mout01.posteo.de ([185.67.36.65]:59019 "EHLO mout01.posteo.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230149AbhFCLwu (ORCPT ); Thu, 3 Jun 2021 07:52:50 -0400 Received: from submission (posteo.de [89.146.220.130]) by mout01.posteo.de (Postfix) with ESMTPS id 940E2240029 for ; Thu, 3 Jun 2021 13:51:04 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.net; s=2017; t=1622721064; bh=lIIqWrZEgUHD2YQOnbHsOFHvIImysoo2Lux0KcL3teE=; h=Date:From:To:Cc:Subject:From; b=F6kbh2388EVrYaqEFpwmgbWfHCYht66VkBE1s5wR4MAOmk5vpn/wlFExk5d9oslCn fC1/9CNeXrGjHm5Q4Qin1SsfkQdNER62Q4bNSOt31+rr7l5dALSQe6DEU+HSbKeDOs uO78b/dAQe9W4a2MiPqvcrZCX4ikIAUR6hlRSZyGMzARAL0qMpQZqWfb2Bp4Sz8DfJ ZxKUa090Qwh/vazdd04YDJXD7taeclXJb6HJhY8SrN0MYI5RXWU2w2kRu19WPNCaTA xa3ONDZ6ddc69vpdIdFki7Ink0PeCl6DVZbAm0bJQaxwxdPXawhUo4G5wKJDI8vpt7 NXxtc931OuvcA== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 4FwkkH65Vcz6tmJ; Thu, 3 Jun 2021 13:51:03 +0200 (CEST) Date: Thu, 3 Jun 2021 11:51:02 +0000 From: Wilken Gottwalt To: linux-kernel@vger.kernel.org Cc: Jean Delvare , Guenter Roeck , Jonathan Corbet , linux-hwmon@vger.kernel.org Subject: [PATCH v2] hwmon: corsair-psu: fix suspend behavior Message-ID: MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org During standby some PSUs turn off the microcontroller. A re-init is required during resume or the microcontroller stays unresponsive. Fixes: d115b51e0e56 ("hwmon: add Corsair PSU HID controller driver") Signed-off-by: Wilken Gottwalt --- Changes in v2: - corrected fixes commit --- drivers/hwmon/corsair-psu.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/hwmon/corsair-psu.c b/drivers/hwmon/corsair-psu.c index 02298b86b57b..731d5117f9f1 100644 --- a/drivers/hwmon/corsair-psu.c +++ b/drivers/hwmon/corsair-psu.c @@ -771,6 +771,16 @@ static int corsairpsu_raw_event(struct hid_device *hdev, struct hid_report *repo return 0; } +#ifdef CONFIG_PM +static int corsairpsu_resume(struct hid_device *hdev) +{ + struct corsairpsu_data *priv = hid_get_drvdata(hdev); + + /* some PSUs turn off the microcontroller during standby, so a reinit is required */ + return corsairpsu_init(priv); +} +#endif + static const struct hid_device_id corsairpsu_idtable[] = { { HID_USB_DEVICE(0x1b1c, 0x1c03) }, /* Corsair HX550i */ { HID_USB_DEVICE(0x1b1c, 0x1c04) }, /* Corsair HX650i */ @@ -793,6 +803,10 @@ static struct hid_driver corsairpsu_driver = { .probe = corsairpsu_probe, .remove = corsairpsu_remove, .raw_event = corsairpsu_raw_event, +#ifdef CONFIG_PM + .resume = corsairpsu_resume, + .reset_resume = corsairpsu_resume, +#endif }; module_hid_driver(corsairpsu_driver);