linux-kernel - Re: [PATCH v3 10/11] dt-bindings: imx6q-pcie: Add i.MX8Q pcie compatible string

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Message-ID: <20240429154823.GD1709920-robh@kernel.org>
Date: Mon, 29 Apr 2024 10:48:23 -0500
From: Rob Herring <robh@...nel.org>
To: Frank Li <Frank.Li@....com>
Cc: Richard Zhu <hongxing.zhu@....com>,
	Lucas Stach <l.stach@...gutronix.de>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	NXP Linux Team <linux-imx@....com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>, linux-pci@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, bpf@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH v3 10/11] dt-bindings: imx6q-pcie: Add i.MX8Q pcie
 compatible string

On Tue, Apr 02, 2024 at 10:33:46AM -0400, Frank Li wrote:
> From: Richard Zhu <hongxing.zhu@....com>
> 
> Add i.MX8Q PCIe "fsl,imx8q-pcie" compatible strings.
> 
> Add "fsl,local-address" property for i.MX8Q platforms. fsl,local-address
> is address of PCIe module in high speed io (HSIO)subsystem bus fabric. HSIO
> bus fabric convert the incoming address base to this local-address. Two
> instances of PCI have difference local address.

This is just some intermediate bus address? We really should be able to 
describe this with standard ranges properties.

> 
> Signed-off-by: Richard Zhu <hongxing.zhu@....com>
> Signed-off-by: Frank Li <Frank.Li@....com>
> ---
>  .../devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml |  5 +++++
>  .../devicetree/bindings/pci/fsl,imx6q-pcie.yaml        | 18 ++++++++++++++++++
>  2 files changed, 23 insertions(+)