linux-kernel - RE: [PATCH 01/10] dt-bindings: PCI: fsl,imx6q-pcie: Add reset GPIO in Root Port node

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Message-ID:
 <VI0PR04MB12114175B7AEB0045908223119297A@VI0PR04MB12114.eurprd04.prod.outlook.com>
Date: Thu, 22 Jan 2026 02:31:26 +0000
From: Sherry Sun <sherry.sun@....com>
To: Rob Herring <robh@...nel.org>
CC: Hongxing Zhu <hongxing.zhu@....com>, "l.stach@...gutronix.de"
	<l.stach@...gutronix.de>, "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
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	<kwilczynski@...nel.org>, "mani@...nel.org" <mani@...nel.org>,
	"krzk+dt@...nel.org" <krzk+dt@...nel.org>, "conor+dt@...nel.org"
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Subject: RE: [PATCH 01/10] dt-bindings: PCI: fsl,imx6q-pcie: Add reset GPIO in
 Root Port node

> On Mon, Jan 19, 2026 at 06:02:26PM +0800, Sherry Sun wrote:
> > Update the fsl,imx6q-pcie.yaml to include the reset-gpios property in
> > the Root Port node.
> >
> > There is already 'reset-gpios' property defined for PERST# in
> > pci-bus-common.yaml, so use that property instead of 'reset-gpio' in
> > this file, for backward compatibility, do not remove the existing
> > property in the bridge node, but mark them as 'deprecated' instead.
> >
> > Signed-off-by: Sherry Sun <sherry.sun@....com>
> > ---
> >  .../bindings/pci/fsl,imx6q-pcie.yaml          | 29 +++++++++++++++++++
> >  1 file changed, 29 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
> > b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
> > index 12a01f7a5744..74156b42e7a2 100644
> > --- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
> > +++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
> > @@ -59,9 +59,12 @@ properties:
> >        - const: dma
> >
> >    reset-gpio:
> > +    deprecated: true
> >      description: Should specify the GPIO for controlling the PCI bus device
> >        reset signal. It's not polarity aware and defaults to active-low reset
> >        sequence (L=reset state, H=operation state) (optional required).
> > +      This property is deprecated, instead of referencing this property from
> the
> > +      host bridge node, use the reset-gpios property from the root port
> node.
> >
> >    reset-gpio-active-high:
> 
> Probably this needs to be deprecated too?

Hi Rob,
Yes, I will also mark this property as deprecated in V2, thanks!

Best Regards
Sherry

> 
> >      description: If present then the reset sequence using the GPIO