Re: [PATCH v4 5/6] arm64: dts: qcom: sm4450-qrd: add QRD4450 uart support

[Tengfei Fan]

在 9/24/2023 3:12 AM, Dmitry Baryshkov 写道:
> On Fri, 22 Sept 2023 at 11:13, Tengfei Fan <quic_tengfan@xxxxxxxxxxx> wrote:
> > Add uart support for QRD4450 for enable uart console.
> >
> > Signed-off-by: Tengfei Fan <quic_tengfan@xxxxxxxxxxx>
> > ---
> >   arch/arm64/boot/dts/qcom/sm4450-qrd.dts | 19 +++++++++++++++++--
> >   1 file changed, 17 insertions(+), 2 deletions(-)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sm4450-qrd.dts b/arch/arm64/boot/dts/qcom/sm4450-qrd.dts
> > index 00a1c81ca397..e354bad57a9e 100644
> > --- a/arch/arm64/boot/dts/qcom/sm4450-qrd.dts
> > +++ b/arch/arm64/boot/dts/qcom/sm4450-qrd.dts
> > @@ -10,9 +10,24 @@
> >          model = "Qualcomm Technologies, Inc. SM4450 QRD";
> >          compatible = "qcom,sm4450-qrd", "qcom,sm4450";
> >
> > -       aliases { };
> > +       aliases {
> > +               serial0 = &uart7;
> > +       };
> >
> >          chosen {
> > -               bootargs = "console=hvc0";
> > +               stdout-path = "serial0:115200n8";
> >          };
> >   };
> > +
> > +&qupv3_id_0 {
> > +       status = "okay";
> > +};
> > +
> > +&tlmm {
> > +       /* Reserved for other subsystems */
> > +       gpio-reserved-ranges = <0 4>, <136 1>;
> > +};
>
> Is this also related to the UART support? it looks like it is a
> separate patch, which should likely have the Fixes tag
Hi Dmitry,
This is related to the pinctrl support, UART support depend on pinctrl.
I will separate this to another patch for clearer.
> > +
> > +&uart7 {
> > +       status = "okay";
> > +};
> > --
> > 2.17.1

--
Thx and BRs,
Tengfei Fan