Re: [PATCH v8 10/10] phy: qualcomm: phy-qcom-qmp-ufs: Add High Speed Gear 5 support for SM8550

[Dmitry Baryshkov]

On Sat, 2 Dec 2023 at 14:37, Can Guo <quic_cang@xxxxxxxxxxx> wrote:
>
> On SM8550, two sets of UFS PHY settings are provided, one set is to support
> HS-G5, another set is to support HS-G4 and lower gears. The two sets of PHY
> settings are programming different values to different registers, mixing
> the two sets and/or overwriting one set with another set is definitely not
> blessed by UFS PHY designers.
>
> To add HS-G5 support for SM8550, split the two sets of PHY settings into
> their dedicated overlay tables, only the common parts of the two sets of
> PHY settings are left in the .tbls.
>
> Consider we are going to add even higher gear support in future, to avoid
> adding more tables with different names, rename the .tbls_hs_g4 and make it
> an array, a size of 2 is enough as of now.
>
> In this case, .tbls alone is not a complete set of PHY settings, so either
> tbls_hs_overlay[0] or tbls_hs_overlay[1] must be applied on top of the
> .tbls to become a complete set of PHY settings.
>
> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
> Signed-off-by: Can Guo <quic_cang@xxxxxxxxxxx>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

> ---
>  drivers/phy/qualcomm/phy-qcom-qmp-pcs-ufs-v6.h     |   2 +
>  drivers/phy/qualcomm/phy-qcom-qmp-qserdes-com-v6.h |   2 +
>  .../qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h    |   8 +
>  drivers/phy/qualcomm/phy-qcom-qmp-ufs.c            | 169 ++++++++++++++++++---
>  4 files changed, 159 insertions(+), 22 deletions(-)

-- 
With best wishes
Dmitry