Re: [PATCH V2 0/3] Add level shifter support for qualcomm SOC's

[Sarthak Garg]

On 5/23/2025 11:55 PM, Konrad Dybcio wrote:
> On 5/23/25 12:57 PM, Sarthak Garg wrote:
> > Add level shifter support for qualcomm SOC's.
> >
> > - Changed from v1
> >      - As suggested by Krzysztof Kozlowski redesigned logic to use
> >      compatible property for adding this level shifter support.
> >      - Addressed Adrian Hunter comments on V1 with resepect to
> >        checkpatch.
> >      - Cleared the bits first and then set bits in
> >        sdhci_msm_execute_tuning as suggested by Adrian Hunter.
> >      - Upated the if condition logic in msm_set_clock_rate_for_bus_mode
> >        as suggested by Adrian Hunter.
>
> During internal review I suggested we could introduce a generic quirk,
> perhaps called "max-hs-frequency" which would update this
> currently-constant value:
>
> ---------------- drivers/mmc/core/sd.c ----------------
> if (status[13] & SD_MODE_HIGH_SPEED)
> 	card->sw_caps.hs_max_dtr = HIGH_SPEED_MAX_DTR;
> -------------------------------------------------------
>
> (50 MHz)
>
> which I believe is where it comes from
>
> Konrad

Sure will introduce a new dtsi flag "max-sd-uhs-frequency" and update 
this hs_max_dtr value in V3.