Re: [PATCH 2/2] dt-bindings: phy: List supplies for qcom,edp-phy

[Doug Anderson]

Hi,

On Mon, Apr 25, 2022 at 2:07 PM Douglas Anderson <dianders@xxxxxxxxxxxx> wrote:
>
> We're supposed to list the supplies in the dt bindings but there are
> none in the eDP PHY bindings.
>
> Looking at the driver in Linux, I can see that there seem to be two
> relevant supplies: "vdda-phy" and "vdda-pll". Let's add those to the
> bindings.
>
> NOTE: from looking at the Qualcomm datasheet for sc7280, it's not
> immediately clear how to figure out how to fill in these supplies. The
> only two eDP related supplies are simply described as "power for eDP
> 0.9V circuits" and "power for eDP 1.2V circuits". From guessing and
> from comparing how a similar PHY is hooked up on other similar
> Qualcomm boards, I'll make the educated guess that the 1.2V supply
> goes to "vdda-phy" and the 0.9V supply goes to "vdda-pll" and I'll use
> that in the example here.
>
> Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
> ---
>
>  Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)

Even though patch #1 in this series should be dropped, this patch
(patch #2) is still valid. Vinod: I assume this would land in your
tree along with the first two patches in Kuogee's series [1], which
are related. Please let me know if you need me to re-send or anything.
Thanks!

[1] https://lore.kernel.org/r/1653507433-22585-1-git-send-email-quic_khsieh@xxxxxxxxxxx/

-Doug