[v4,0/1] Remove support for legacy UFS

Message

Avri Altman April 10, 2024, 6:37 p.m. UTC

UFS1.0 and UFS1.1, published in the early 2010s, were more of a proof of
concept rather than a mature functional spec. Toshiba was the only
device manufacturer with the most accomplished phy team to come up with
a small UFS1.0 device. Alas, there were no commercial platforms it can
be paired with. Even UFS2.0 that was published in 2013, didn't really
make it to the market: too moot to take effect. It's not until UFS2.1
that was published in 2016, were a myriad of devices and platforms
flooded the market. Designated to mobile devices, dictates a rapid short
lives for those platforms. Hence, we can safely remove those pre-UFS2.0
pieces of code.

Changes from v2:
 - Make it clear that UFSHCI2.0 is not included in this change (Bart).
 
Changes from v2:
 - leave UFSHCI2.0 out of this change (Bart).

Changes from v1:
 - remove ufshcd_get_local_unipro_ver which practically mean squashing
   patch 1 & 2 into a single patch (Christoph)
 - restore an if clause to avoid functional change in
   ufshcd_compl_one_cqe (Bart)

Avri Altman (1):
  scsi: ufs: Remove support for old UFSHCI versions

 drivers/ufs/core/ufshcd.c   | 158 +++---------------------------------
 drivers/ufs/host/ufs-qcom.c |   3 +-
 include/ufs/ufshcd.h        |   2 -
 include/ufs/ufshci.h        |  13 +--
 4 files changed, 15 insertions(+), 161 deletions(-)

Comments

Martin K. Petersen April 25, 2024, 1:57 a.m. UTC | #1

On Wed, 10 Apr 2024 21:37:18 +0300, Avri Altman wrote:

> UFS1.0 and UFS1.1, published in the early 2010s, were more of a proof of
> concept rather than a mature functional spec. Toshiba was the only
> device manufacturer with the most accomplished phy team to come up with
> a small UFS1.0 device. Alas, there were no commercial platforms it can
> be paired with. Even UFS2.0 that was published in 2013, didn't really
> make it to the market: too moot to take effect. It's not until UFS2.1
> that was published in 2016, were a myriad of devices and platforms
> flooded the market. Designated to mobile devices, dictates a rapid short
> lives for those platforms. Hence, we can safely remove those pre-UFS2.0
> pieces of code.
> 
> [...]

Applied to 6.10/scsi-queue, thanks!

[1/1] scsi: ufs: Remove support for old UFSHCI versions
      https://git.kernel.org/mkp/scsi/c/a33a502d50fd