RE: [PATCH 0/4] mmc: core: Preparations to support SD UHS-II cards

[ReniusChen[陳建宏]]

Hi Ulf,


I'm currently trying to take over and refactor the task refer to your series.
And there hasn't been much progress recently because I'm busy with other work.


Regards,

Renius

>-----Original Message-----
>From: Ulf Hansson [mailto:ulf.hansson@xxxxxxxxxx]
>Sent: Wednesday, March 31, 2021 5:57 PM
>To: BenChuang[莊智量]; Renius Chen
>Cc: AKASHI Takahiro; GregTu[杜啟軒]; Masami Hiramatsu; Takao Orito; Linux
>Kernel Mailing List; Ulf Hansson; Adrian Hunter; linux-mmc
>Subject: Re: [PATCH 0/4] mmc: core: Preparations to support SD UHS-II cards
>
>Hi Ben, Renius,
>
>On Thu, 25 Feb 2021 at 18:04, Ulf Hansson <ulf.hansson@xxxxxxxxxx> wrote:
>>
>> A series [1] that has been collaborative worked upon by Takahiro Akashi
>> (Linaro) and Ben Chuang (Genesys Logic) is targeting to add SD UHS-II support
>> to the mmc subsystem.
>>
>> Throughout the reviews, we realized that the changes affecting the mmc core
>to
>> support the UHS-II interface/protocol might not be entirely straightforward to
>> implement. Especially, I expressed some concerns about the code that
>manages
>> power on/off, initialization and power management of a SD UHS-II card.
>>
>> Therefore, I have posted this small series to try to help to put some of the
>> foundation in the mmc core in place. Hopefully this can provide some
>guidance
>> and an overall structure, of how I think the code could evolve.
>>
>> More details are available in the commit messages and through comments in
>the
>> code, for each path.
>>
>> Kind regards
>> Uffe
>
>I just wanted to get an update from your side. Did $subject series
>help to move things forward?
>
>If there is anything else I can help with, then please ping me.
>
>Kind regards
>Uffe
>
>>
>> [1]
>> https://lkml.org/lkml/2020/11/5/1472
>>
>>
>> Ulf Hansson (4):
>>   mmc: core: Cleanup printing of speed mode at card insertion
>>   mmc: core: Prepare to support SD UHS-II cards
>>   mmc: core: Announce successful insertion of an SD UHS-II card
>>   mmc: core: Extend support for mmc regulators with a vqmmc2
>>
>>  drivers/mmc/core/Makefile    |   2 +-
>>  drivers/mmc/core/bus.c       |  38 +++--
>>  drivers/mmc/core/core.c      |  17 ++-
>>  drivers/mmc/core/core.h      |   1 +
>>  drivers/mmc/core/host.h      |   5 +
>>  drivers/mmc/core/regulator.c |  34 +++++
>>  drivers/mmc/core/sd_uhs2.c   | 289
>+++++++++++++++++++++++++++++++++++
>>  include/linux/mmc/card.h     |   6 +
>>  include/linux/mmc/host.h     |  30 ++++
>>  9 files changed, 404 insertions(+), 18 deletions(-)
>>  create mode 100644 drivers/mmc/core/sd_uhs2.c
>>
>> --
>> 2.25.1
>>
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