linux-kernel - Re: [PATCH v3 4/9] pci: pwrctrl: generic: support for the UPD720201/UPD720202 USB 3.0 xHCI Host Controller

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Message-ID: <fbxbnou5mdlhaq5dpxr3wdzmjetwdp7auaaqeunc67tgk5ej2m@cnnkr2pcwy77>
Date: Mon, 9 Feb 2026 17:00:02 +0530
From: Manivannan Sadhasivam <mani@...nel.org>
To: Neil Armstrong <neil.armstrong@...aro.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Geert Uytterhoeven <geert+renesas@...der.be>, 
	Magnus Damm <magnus.damm@...il.com>, Bartosz Golaszewski <brgl@...nel.org>, 
	Bjorn Helgaas <bhelgaas@...gle.com>, Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konradybcio@...nel.org>, linux-usb@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-renesas-soc@...r.kernel.org, linux-pci@...r.kernel.org, 
	linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v3 4/9] pci: pwrctrl: generic: support for the
 UPD720201/UPD720202 USB 3.0 xHCI Host Controller

On Fri, Feb 06, 2026 at 03:50:32PM +0100, Neil Armstrong wrote:
> Enable the generic pwrctrl driver to control the power of the
> PCIe UPD720201/UPD720202 USB 3.0 xHCI Host Controller.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
> ---
>  drivers/pci/pwrctrl/generic.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/pci/pwrctrl/generic.c b/drivers/pci/pwrctrl/generic.c
> index 08e53243cdbd..4a57a631362f 100644
> --- a/drivers/pci/pwrctrl/generic.c
> +++ b/drivers/pci/pwrctrl/generic.c
> @@ -73,6 +73,10 @@ static const struct of_device_id pci_pwrctrl_slot_of_match[] = {
>  	{
>  		.compatible = "pciclass,0604",
>  	},
> +	/* Renesas UPD720201/UPD720202 USB 3.0 xHCI Host Controller */
> +	{
> +		.compatible = "pci1912,0014",

No need to add the compatible to the driver. Just use the existing compatible as
fallback in the binding/dts.

- Mani

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