Re: [PATCH v2 4/4] arm64: dts: qcom: Add base PURWA-IOT-EVK board

[Yijie Yang]

On 1/12/2026 2:01 PM, Dmitry Baryshkov wrote:
> On Mon, 12 Jan 2026 at 07:51, Yijie Yang <yijie.yang@xxxxxxxxxxxxxxxx> wrote:
> > On 1/12/2026 1:00 PM, Dmitry Baryshkov wrote:
> > > On Mon, Jan 12, 2026 at 11:12:09AM +0800, Yijie Yang wrote:
> > > > On 1/9/2026 7:29 PM, Konrad Dybcio wrote:
> > > > > On 1/9/26 8:59 AM, YijieYang wrote:
> > > > > > From: Yijie Yang <yijie.yang@xxxxxxxxxxxxxxxx>
> > > > > >
> > > > > > The PURWA-IOT-EVK is an evaluation platform for IoT products, composed of
> > > > > > the Purwa IoT SoM and a carrier board. Together, they form a complete
> > > > > > embedded system capable of booting to UART.
> > > > >
> > > > > [...]
> > > > >
> > > > > > -  backlight: backlight {
> > > > > > -          compatible = "pwm-backlight";
> > > > > > -          pwms = <&pmk8550_pwm 0 5000000>;
> > > > > > -          enable-gpios = <&pmc8380_3_gpios 4 GPIO_ACTIVE_HIGH>;
> > > > > > -          power-supply = <&vreg_edp_bl>;
> > > > > > -
> > > > > > -          pinctrl-0 = <&edp_bl_en>, <&edp_bl_pwm>;
> > > > > > -          pinctrl-names = "default";
> > > > > > -  };
> > > > >
> > > > > Is the backlight infra different on the Purwa IoT EVK?
> > > >
> > > > As you can see, this Purwa file was copied from the latest
> > > > hamoa-iot-evk.dts. However, not all nodes have been verified on Purwa.
> > > > Therefore, I need to retain only the functions that work correctly and keep
> > > > them aligned with the nodes from my initial version. The deleted nodes will
> > > > be updated later by the respective authors from different technical areas.
> > >
> > > Please, only delete nodes which are not present on the Purwa IoT EVK.
> >
> > This isn’t a deletion—it’s just not ready yet. Why do we need to include
> > all the nodes like a mature Hamoa platform in the initial push?
>
> Purwa seems to be mature enough. What exactly can't be enabled at this moment?

There were some errors during boot when those nodes were added in my 
previous test. Anyway, I’ll fix the issues and add them all.

--
Best Regards,
Yijie