Re: [PATCH 3/3] arm64: dts: qcom: qcs615: add pcie phy max current property

[Ziyue Zhang]

在 12/11/2024 2:26 PM, Manivannan Sadhasivam 写道:
> On Wed, Dec 04, 2024 at 06:52:49PM +0800, Ziyue Zhang wrote:
> > Add vdda-pll-max-microamp for vdda-pll-supply. The value of this property
> > is from the power grid guide. It is the maximum current the regulator can
> > provide. The property will be parsed by PCIe PHY driver to set the current
> > load.
> >
> > Signed-off-by: Ziyue Zhang <quic_ziyuzhan@xxxxxxxxxxx>
> > ---
> >   arch/arm64/boot/dts/qcom/qcs615-ride.dts | 1 +
> >   1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/qcs615-ride.dts b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
> > index 18f131ae9e07..6d93ef0d886b 100644
> > --- a/arch/arm64/boot/dts/qcom/qcs615-ride.dts
> > +++ b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
> > @@ -215,6 +215,7 @@ &pcie {
> >   &pcie_phy {
> >   	vdda-phy-supply = <&vreg_l5a>;
> >   	vdda-pll-supply = <&vreg_l12a>;
> > +	vdda-pll-max-microamp = <165000>;
> >   
> Min uV of this regulator is 1800000:
> https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux.git/tree/arch/arm64/boot/dts/qcom/qcs615-ride.dts?h=for-next#n151
>
> How can you set 165000?
>
> - Mani

Hi Mani
the 165000 cames from the power grid guide, and it is 165000uA not uV
BRs
Ziyue

>