From: Kai-Heng Feng <kai.heng.feng@canonical.com>
To: arnd@arndb.de, gregkh@linuxfoundation.org
Cc: ulf.hansson@linaro.org, stern@rowland.harvard.edu,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
Kai-Heng Feng <kai.heng.feng@canonical.com>
Subject: [PATCH 0/4 v6] Keep rtsx_usb suspended when there's no card
Date: Wed, 31 Oct 2018 14:58:59 +0800 [thread overview]
Message-ID: <20181031065903.6209-1-kai.heng.feng@canonical.com> (raw)
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 (4):
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
v6: Move pm_runtime_get_noresume() to media_check(), to avoid
potentially unblanced rpm count.
v5: Corretly use system suspend/resume and runtime suspend/resume callback.
Prevent runtime callbacks get call during system suspend.
v4: Use pm_runtime_put() in memstick_check().
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 | 3 +
drivers/memstick/host/rtsx_usb_ms.c | 173 +++++++++++++++++-----------
drivers/misc/cardreader/rtsx_usb.c | 8 ++
3 files changed, 116 insertions(+), 68 deletions(-)
--
2.17.1
next reply other threads:[~2018-10-31 6:59 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-31 6:58 Kai-Heng Feng [this message]
2018-10-31 6:59 ` [PATCH 1/4 v6] misc: rtsx_usb: Use USB remote wakeup signaling for card insertion detection Kai-Heng Feng
2018-10-31 6:59 ` [PATCH 2/4 v6] memstick: Prevent memstick host from getting runtime suspended during card detection Kai-Heng Feng
2018-10-31 6:59 ` [PATCH 3/4 v6] memstick: rtsx_usb_ms: Use ms_dev() helper Kai-Heng Feng
2018-10-31 6:59 ` [PATCH 4/4 v6] memstick: rtsx_usb_ms: Support runtime power management Kai-Heng Feng
2018-10-31 10:40 ` Ulf Hansson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181031065903.6209-1-kai.heng.feng@canonical.com \
--to=kai.heng.feng@canonical.com \
--cc=arnd@arndb.de \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=stern@rowland.harvard.edu \
--cc=ulf.hansson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).