linux-kernel - Re: [PATCH 0/4 v5] Keep rtsx_usb suspended when there's no card

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Message-ID: <73221b3a7e85c9b68776e3eb257eed6a@natalenko.name>
Date:   Sat, 27 Oct 2018 15:13:16 +0200
From:   Oleksandr Natalenko <oleksandr@...alenko.name>
To:     kai.heng.feng@...onical.com
Cc:     arnd@...db.de, gregkh@...uxfoundation.org,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        stern@...land.harvard.edu, ulf.hansson@...aro.org
Subject: Re: [PATCH 0/4 v5] Keep rtsx_usb suspended when there's no card

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@...alenko.name>

since it works fine with:

Bus 001 Device 004: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 
Card Reader Controller

-- 
   Oleksandr Natalenko (post-factum)