On Wed, 2021-03-10 at 15:33 +0000, Caleb Connolly wrote:
> When using a device with UFS > 2.1 the error "invalid UFS version" is
> misleadingly printed. There was a patch for this almost a year
> ago to which this solution was suggested.
>
> This series replaces the use of the growing UFSHCI_VERSION_xy macros
> with
> an inline function to encode a major and minor version into the
> scheme
> used on devices, that being:
>
> (major << 8) + (minor << 4)
>
> I dealt with the different encoding used for UFS 1.x by converting it
> to match the newer versions in ufshcd_get_ufs_version(). That means
> it's
> possible to use comparisons for version checks, e.g.
>
> if (hba->ufs_version < ufshci_version(3, 0))
> ...
>
> I've also dropped the "invalid UFS version" check entirely as it
> seems to
> be more misleading than useful, and hasn't been accurate for a long
> time.
>
> This has been tested on a device with UFS 3.0 and a device with UFS
> 2.1,
> however I don't own any older devices to test with.
>
> Caleb
> ---
> Changes since v1:
> * Switch from macro to static inline function
> * Address Christoph's formatting comments
> * Add Nitin's signoff on patch 3 ("scsi: ufshcd: remove version
> check")
> Resend:
> * Fix patches 1/3 referencing the macro from v1
> instead of the new inline function
> Changes since v2:
> * Remove excessive parentheses from ufshci_version()
> * Pick up Christoph's Reviewed-by
>
> Caleb Connolly (3):
> scsi: ufshcd: use a function to calculate versions
> scsi: ufs: qcom: use ufshci_version function
> scsi: ufshcd: remove version check
>
> drivers/scsi/ufs/ufs-qcom.c | 4 +--
> drivers/scsi/ufs/ufshcd.c | 66 ++++++++++++++++++-----------------
> ----------
> drivers/scsi/ufs/ufshci.h | 17 +++++++-----
> 3 files changed, 38 insertions(+), 49 deletions(-)
>
>
Thanks for your patch, good look to me.
Reviewed-by: Bean Huo <bean...@micron.com>
