Re: [PATCH v2 6/7] arm64: dts: qcom: Add Redmi 4A

[barnabas . czeman]

On 2026-03-11 10:16, Konrad Dybcio wrote:
> On 3/10/26 6:21 PM, Barnabás Czémán wrote:
> > Redmi 4A (rolex) is like Redmi 5A with small differences like 
> > charging,
> > fuel gauge, different speaker codec configuration and display.
> >
> > Signed-off-by: Barnabás Czémán <barnabas.czeman@xxxxxxxxxxxxxx>
> > ---
>
> I see the Go has some differences in regulator configuration.
>
> Does the 4A's one match the existing 5A?
Yes they are same, l22 is vana l23 is vdig for camera sensor.
riva and rolex is using 2.8v for vana and 1.2v for vdig.
tiare is using 2.85v for vana and 1.2 v for vdig so l22 min-voltage also 
should be increased
but l23 max-voltage increase is unnecessary, there is no reason to keep 
downstream value there.

Here is some proof 
https://github.com/Mi-Thorium/kernel_devicetree_xiaomi-msm8937/blob/dts/mi8937/4.9/master/wingtech/msm8917/tiare/camera.dtsi#L16C1-L23C65
> Konrad