-----Original Message-----
From: Shawn Guo <redacted>
Sent: 2024年8月13日 10:51
To: Hongxing Zhu <hongxing.zhu@nxp.com>
Cc: robh@kernel.org; krzk+dt@kernel.org; conor+dt@kernel.org;
shawnguo@kernel.org; l.stach@pengutronix.de; devicetree@vger.kernel.org;
linux-pci@vger.kernel.org; linux-arm-kernel@lists.infradead.org;
linux-kernel@vger.kernel.org; kernel@pengutronix.de; imx@lists.linux.dev
Subject: Re: [PATCH v4 2/4] dts: arm64: imx8mq: Add dbi2 and atu reg for
i.MX8MQ PCIe EP

On Mon, Jul 29, 2024 at 09:56:43AM +0800, Richard Zhu wrote:

quoted

Add dbi2 and iatu reg for i.MX8MQ PCIe EP.

For i.MX8M PCIe EP, the dbi2 and atu addresses are pre-defined in the
driver. This method is not good.

In commit b7d67c6130ee ("PCI: imx6: Add iMX95 Endpoint (EP) support"),
Frank suggests to fetch the dbi2 and atu from DT directly. This commit
is preparation to do that for i.MX8MQ PCIe EP.

These changes wouldn't break driver function. When "dbi2" and "atu"
properties are present, i.MX PCIe driver would fetch the according
base addresses from DT directly. If only two reg properties are
provided, i.MX PCIe driver would fall back to the old method.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>

"arm64: dts: ..." for subject prefix.

Sorry, would be correct in v5.

Best Regards
Richard Zhu

Shawn