From patchwork Wed Dec 14 08:14:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Puma Hsu X-Patchwork-Id: 634381 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D39CCC4332F for ; Wed, 14 Dec 2022 08:15:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237224AbiLNIPb (ORCPT ); Wed, 14 Dec 2022 03:15:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39550 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237523AbiLNIPL (ORCPT ); Wed, 14 Dec 2022 03:15:11 -0500 Received: from mail-pf1-x449.google.com (mail-pf1-x449.google.com [IPv6:2607:f8b0:4864:20::449]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 848B9E00 for ; Wed, 14 Dec 2022 00:15:10 -0800 (PST) Received: by mail-pf1-x449.google.com with SMTP id cp23-20020a056a00349700b005775c52dbceso3711907pfb.21 for ; Wed, 14 Dec 2022 00:15:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:mime-version:message-id:date:from:to:cc:subject :date:message-id:reply-to; bh=ZlQfCsrJq4nqGiGSGJoqdYiGzQG1JqFCkFWZgjViQrU=; b=Eb2gingklSMl9cha53wgAH0IBEyXBUinCjy4bH0XwYS066GkCfGG4lKjHYkRDEVxgG otK7YVOfig0248wrC/C+nDjvzfrUmK93mXrmV+fmvFaroL0YakK6RRLkrDqRJsq91zNp 6+yjdPqikrw9AROQwNWnxq6HDdzE3BRNhezCVqDaTsVn6LX99Ys+UdNtT/Wxnfl7D8al wv5/nASL4w8NX6r5ocvmt+CNqV3zGK3sskAToMPvI7Xnj52rQayO2Y/27A83V+SSPZoN h49USi8WYVWojrlD4hJHoPcdbgSpP3nbipnL2QHeIlQkJ9B+CMzhxKFNeSCR4cT/yhk3 433g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:mime-version:message-id:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=ZlQfCsrJq4nqGiGSGJoqdYiGzQG1JqFCkFWZgjViQrU=; b=PJW1jHr3lt1sHA3cqir0TGN6HFkRRki7v45EudioH1duYhaaSOSwLse6dzxHp9QhSZ uqnPfOAZQOn8+EpxOykI4CrBEI26SW4gOXO1HHNRphPSyBANbjW/UT7t8lAQ3c/LFbba D/f8jraIEhokpx5y0v0wvJj2hFF5rFzZNRHNgoj3znMuDrE6pNT07KofJct+aLPdjGIO BLv7dTCboipP9zCpU/YPjcijU53e3k2d3utOJIxODn+QipreuzJFoY7/Rdf7lJb0MPhC MT7fNv77xNG1RnrUckNHMstXw1qAK2w1sKRmeY2JNwLoEB8+U+xWIESjQD63d3inFusU w0rw== X-Gm-Message-State: ANoB5plO5Cmx2HACS+Vsqd+HJeojyR8E6lDRxiikugfc/innr2rSuc+Q ZXtarKYGCD5YjWM0ZvcJpIxLNbLLvz/J X-Google-Smtp-Source: AA0mqf436BRHiFtx2EhinRKwvE/0cKEMDHFzkVG+T8QjqxOq8AgDKBl7X6OMbCXBnWQNg1DZOzrfvxPKdAm4 X-Received: from pumahsu.ntc.corp.google.com ([2401:fa00:fc:202:cb1:cbe3:3a49:1751]) (user=pumahsu job=sendgmr) by 2002:a17:903:3314:b0:189:a208:d13d with SMTP id jk20-20020a170903331400b00189a208d13dmr44522733plb.144.1671005710041; Wed, 14 Dec 2022 00:15:10 -0800 (PST) Date: Wed, 14 Dec 2022 16:14:54 +0800 Message-Id: <20221214081456.714859-1-pumahsu@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.39.0.rc1.256.g54fd8350bd-goog Subject: [PATCH v2 0/2] add hooks for usb suspend and resume From: Puma Hsu To: gregkh@linuxfoundation.org, mka@chromium.org, dianders@chromium.org Cc: albertccwang@google.com, raychi@google.com, howardyen@google.com, leejj@google.com, hch@infradead.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Puma Hsu Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org In mobile, a co-processor can be used for USB audio. When the co-processor is working for USB audio, the co-processor is the user/owner of the USB driver, and the ACPU is able to sleep in such condition to improve power consumption. In order to support this, we need to create hooks in suspend and resume functions. We also upload our implementations for reviewing. Puma Hsu (2): usb: core: add hooks for usb suspend and resume usb: core: add implementations for usb suspend/resume hooks drivers/usb/core/driver.c | 36 +++++++++++++ drivers/usb/core/usb-hooks-impl-goog.c | 72 ++++++++++++++++++++++++++ drivers/usb/core/usb.h | 5 ++ 3 files changed, 113 insertions(+) create mode 100644 drivers/usb/core/usb-hooks-impl-goog.c --- Changes in v2: - Remove the wrong input in the Makefile - Change description in commit message