[PATCH v2 01/11] scsi: ufs: exynos: Allow UFS Gear 4

Peter Griffin peter.griffin at linaro.org
Wed Oct 30 05:05:25 PDT 2024


Hi Tudor,

On Wed, 30 Oct 2024 at 08:04, Tudor Ambarus <tudor.ambarus at linaro.org> wrote:
>
>
>
> On 10/25/24 2:14 PM, Peter Griffin wrote:
> > UFS Gear 4 offers faster speeds, and better power usage so lets
> > enable it.
> >
> > Currently ufshcd_init_host_params() sets UFS_HS_G3 as a default,
> > so even if the device supports G4 we end up negotiating down to
> > G3.
> >
> > For SoCs like gs101 which have a UFS major controller version
> > of 3 or above advertise Gear 4. This then allows a Gear 4 link
> > on Pixel 6.
> >
> > For earlier controller versions keep the current default behaviour
> > of reporting G3.
> >
> > Signed-off-by: Peter Griffin <peter.griffin at linaro.org>
>
> Reviewed-by: Tudor Ambarus <tudor.ambarus at linaro.org>
>
> some nits/personal preferences below, no need to address them

As I'm re-spinning anyways I'll update it like you suggest.

Peter.



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