| Message ID | 20181024084958.4627-1-kai.heng.feng@canonical.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Keep rtsx_usb suspended when there's no card | expand |
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 > > 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 | 4 + > drivers/memstick/host/rtsx_usb_ms.c | 173 +++++++++++++++++----------- > drivers/misc/cardreader/rtsx_usb.c | 8 ++ > 3 files changed, 117 insertions(+), 68 deletions(-) > > -- > 2.17.1 Feel free to add again: Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name> since it works fine with: Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
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 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 | 4 + drivers/memstick/host/rtsx_usb_ms.c | 173 +++++++++++++++++----------- drivers/misc/cardreader/rtsx_usb.c | 8 ++ 3 files changed, 117 insertions(+), 68 deletions(-)