linux-kernel - Re: [PATCH v5 2/4] arm64: dts: imx8mq: Add dbi2 and atu reg for i.MX8MQ PCIe EP

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Message-ID: <cc845521-8547-4db6-b729-c4d3f1fa6125@kernel.org>
Date: Tue, 13 Aug 2024 10:54:15 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Richard Zhu <hongxing.zhu@....com>, robh@...nel.org, krzk+dt@...nel.org,
 conor+dt@...nel.org, shawnguo@...nel.org, l.stach@...gutronix.de
Cc: devicetree@...r.kernel.org, linux-pci@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 kernel@...gutronix.de, imx@...ts.linux.dev
Subject: Re: [PATCH v5 2/4] arm64: dts: imx8mq: Add dbi2 and atu reg for
 i.MX8MQ PCIe EP

On 13/08/2024 09:42, Richard Zhu wrote:
> 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@....com>
> Reviewed-by: Frank Li <Frank.Li@....com>

Stop adding fake tags. This never happened. If it happened, provide lore
link.

Best regards,
Krzysztof