Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp925131imm; Wed, 25 Jul 2018 08:26:48 -0700 (PDT) X-Google-Smtp-Source: AAOMgpc2bmXMiE77YarrRUZar5fx072sWNt3yFrKF+mq0Z0rUWbiAthvfvwpjI9LQs0KT3X8o/FY X-Received: by 2002:a63:6188:: with SMTP id v130-v6mr21004566pgb.100.1532532408105; Wed, 25 Jul 2018 08:26:48 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1532532408; cv=none; d=google.com; s=arc-20160816; b=it5PQkzEwd0ZWsRhxdUzyf1fIiicBxLWWpA4eA/BBQzO7dV6dgdcaoS+bf46IvO5/z mW+vwSOR4iD8DL39GEunlBs2txTF4c6T/U8Y9jL6F8grMWMXNDEwvAnj0C6VdGo7pFRs RoW1u8XlXv1KjNVAs5UN9DxhbCEqtQqpKB8Te1vDjv51eXOVghh9BC+9IlZQgp2RsaOT Mhj7i2E1xp8q2ZTAHcrWZjIm/29jrmw9XO4WWJxi+M1WiNJbrzjaI7UlAB3JumHwth5H MOxQCZZPi1BC+IwoJ1pBs6ys2zQx8qY029qnYp57UWAibh40FDtGGe3TrRhN8uGUVl/q FDFA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:message-id:date:subject:cc:to:from :arc-authentication-results; bh=GPUKn3zIUUgjq7MuQYXnbKLPXa8uBwwgQ48azCPoMqE=; b=OtdRCC1/njLFEeMQKQriWQ4G5Uu/D9dAZUXcTozprl9hoOcJMysU8yktpAxGFGRqdL ZO/U2KdR44H9Vw9gYPEmpXoF3jNH05B7gwO1fXEUmCJhzMYkEKtqUn3Tek+pHC0ZuWEb IGL5Lb33LzERP8HddhbDN21EVpnbEBdqZ/L0Coz74/Jd3keRI/0bpGRSfv/UpA4T0br2 XTg9NtxV32ESlZ6hnWlL6jnBdlBFEk8zASfScy2v52TP8rX9qs0vQLTK3Gzz1S9kVX3h JC86d9E/qndVDsOB+SJopXqx9LqYynKJ193BNfuf1WG0xJDizba6NkWZLyPoJ5dbnEyT ESCg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=canonical.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id w9-v6si14722259pfg.234.2018.07.25.08.26.32; Wed, 25 Jul 2018 08:26:48 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=canonical.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728677AbeGYQhk (ORCPT + 99 others); Wed, 25 Jul 2018 12:37:40 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:57213 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728528AbeGYQhk (ORCPT ); Wed, 25 Jul 2018 12:37:40 -0400 Received: from 1-161-144-158.dynamic-ip.hinet.net ([1.161.144.158] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.76) (envelope-from ) id 1fiLfL-00011h-CI; Wed, 25 Jul 2018 15:25:27 +0000 From: Kai-Heng Feng To: arnd@arndb.de, gregkh@linuxfoundation.org Cc: ulf.hansson@linaro.org, stern@rowland.harvard.edu, bauer.chen@realtek.com, ricky_wu@realtek.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Kai-Heng Feng Subject: [PATCH 0/5 v3] Keep rtsx_usb suspended when there's no card Date: Wed, 25 Jul 2018 23:25:10 +0800 Message-Id: <20180725152515.1833-1-kai.heng.feng@canonical.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, This is based on Ulf's work [1] [2]. This patch series can keep rtsx_usb suspended, to save ~0.5W on Intel platforms and ~1.5W on AMD platforms. [1] https://patchwork.kernel.org/patch/10440583/ [2] https://patchwork.kernel.org/patch/10445725/ Kai-Heng Feng (5): misc: rtsx_usb: Use USB remote wakeup signaling for card insertion detection memstick: Prevent memstick host from getting runtime suspended during card detection memstick: rtsx_usb_ms: Use ms_dev() helper memstick: rtsx_usb_ms: Support runtime power management misc: rtsx_usb: / memstick: rtsx_usb_ms: Avoid long delay before system suspend -- v3: Skip parent device check in rtsx_usb_resume_child() . Remove dev_dbg() if it only prints function name. Use ms_dev() helper at more places. Remove const qualifier for UNIVERSAL_DEV_PM_OPS. v2: Resend to linux-usb and LKML. drivers/memstick/core/memstick.c | 4 + drivers/memstick/host/rtsx_usb_ms.c | 148 +++++++++++++++------------- drivers/misc/cardreader/rtsx_usb.c | 9 ++ 3 files changed, 91 insertions(+), 70 deletions(-) -- 2.17.1