| Message ID | 20180725152515.1833-1-kai.heng.feng@canonical.com (mailing list archive) |
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From: Kai-Heng Feng <kai.heng.feng@canonical.com>
To: arnd@arndb.de, gregkh@linuxfoundation.org
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Kai-Heng Feng <kai.heng.feng@canonical.com>
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>
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| Series |
Keep rtsx_usb suspended when there's no card
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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(-)