回复: [EXT] Re: [PATCH 2/4] arm64: dts: imx8ulp-evk: enable usb nodes

[Jun Li]

Hi Fabio,

> -----邮件原件-----
> 发件人: Fabio Estevam <festevam at gmail.com>
> 发送时间: 2023年12月14日 21:15
> 收件人: Xu Yang <xu.yang_2 at nxp.com>
> 抄送: robh+dt at kernel.org; krzysztof.kozlowski+dt at linaro.org;
> conor+dt at kernel.org; shawnguo at kernel.org; s.hauer at pengutronix.de;
> kernel at pengutronix.de; dl-linux-imx <linux-imx at nxp.com>;
> devicetree at vger.kernel.org; linux-arm-kernel at lists.infradead.org
> 主题: Re: [EXT] Re: [PATCH 2/4] arm64: dts: imx8ulp-evk: enable usb nodes
> 
> On Thu, Dec 14, 2023 at 9:50 AM Xu Yang <xu.yang_2 at nxp.com> wrote:
> 
> > PTN5150 can work autonomously for most of the basic functions.
> > I don’t see a need to enable driver for it now.
> 
> We are talking about devicetree here, not driver.
> 
> If the PTN5150 is present on the board, then just represent it in the
> devicetree.

If we do not need its driver(either SW control or pass any information) for
PTN5150, what's the point to present it in device tree? Another reason
is current PTN5150 driver is through extcon, not type-c, so enable it can
not get benefit of type-C subsystem.

Thanks
Li Jun