On Tue, 7 Sept 2021 at 05:58, Lai Jason <jasonlai.genesyslogic@xxxxxxxxx> wrote: > > Dear Ulf, > Do you have any comment or suggestion about this series of patches? I will have a look soon, been busy with other assignments and the merge window. Kind regards Uffe > > 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 > >
