Dear Ulf,
Do you have any comment or suggestion about this series of patches?
kind regards,
Jason Lai
On Tue, Aug 31, 2021 at 7:00 PM Jason Lai
<jasonlai.genesyslogic@xxxxxxxxx> wrote:
>
> From: Jason Lai <jason.lai@xxxxxxxxxxxxxxxxxxx>
>
> From: Jason Lai <jason.lai@xxxxxxxxxxxxxxxxxxx>
>
> A series [2] that has been posted by Ulf Hansson which provided some
> guidance and an overall structure. This post is the successor version of
> series [2]. It is focused on UHS-II card control side to address Ulf's
> intention regarding "modularising" sd_uhs2.c.
>
> Some functions in mmc host part must be modified in order to support UHS-II
> card control. Those changes are not included in this post.
>
> Kind regards
> Jason Lai
>
> [2]
> https://patchwork.kernel.org/project/linux-mmc/list/?series=438509
>
> 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
> Jason Lai (3):
> mmc: add UHS-II related definitions in headers
> mmc: Implement content of UHS-II card initialization functions
> mmc: core: Support UHS-II card access
>
> drivers/mmc/core/Makefile | 2 +-
> drivers/mmc/core/bus.c | 38 +-
> drivers/mmc/core/core.c | 43 +-
> drivers/mmc/core/core.h | 1 +
> drivers/mmc/core/host.h | 4 +
> drivers/mmc/core/regulator.c | 33 +
> drivers/mmc/core/sd_uhs2.c | 1184 ++++++++++++++++++++++++++++++++++
> drivers/mmc/core/sd_uhs2.h | 21 +
> include/linux/mmc/card.h | 7 +
> include/linux/mmc/host.h | 31 +
> include/linux/mmc/sd_uhs2.h | 269 ++++++++
> 11 files changed, 1613 insertions(+), 20 deletions(-)
> create mode 100644 drivers/mmc/core/sd_uhs2.c
> create mode 100755 drivers/mmc/core/sd_uhs2.h
> create mode 100755 include/linux/mmc/sd_uhs2.h
>
> ------ original cover letter from Ulf's series ------
> 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
>
> [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
>
> --
> 2.32.0
>
