From: Shawn Guo <shawnguo2@yeah.net>
To: Richard 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
Date: Tue, 13 Aug 2024 10:50:30 +0800 [thread overview]
Message-ID: <ZrrJ9hfs2ycJgq8W@dragon> (raw)
In-Reply-To: <1722218205-10683-3-git-send-email-hongxing.zhu@nxp.com>
On Mon, Jul 29, 2024 at 09:56:43AM +0800, 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@nxp.com>
> Reviewed-by: Frank Li <Frank.Li@nxp.com>
"arm64: dts: ..." for subject prefix.
Shawn
next prev parent reply other threads:[~2024-08-13 2:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-29 1:56 [PATCH v4 0/4] Add dbi2 and atu for i.MX8M PCIe EP Richard Zhu
2024-07-29 1:56 ` [PATCH v4 1/4] dt-bindings: imx6q-pcie: Add reg-name "dbi2" and "atu" for i.MX8M PCIe Endpoint Richard Zhu
2024-08-06 14:40 ` Rob Herring (Arm)
2024-07-29 1:56 ` [PATCH v4 2/4] dts: arm64: imx8mq: Add dbi2 and atu reg for i.MX8MQ PCIe EP Richard Zhu
2024-08-13 2:50 ` Shawn Guo [this message]
2024-08-13 7:54 ` Hongxing Zhu
2024-07-29 1:56 ` [PATCH v4 3/4] dts: arm64: imx8mp: Add dbi2 and atu reg for i.MX8MP " Richard Zhu
2024-07-29 1:56 ` [PATCH v4 4/4] dts: arm64: imx8mm: Add dbi2 and atu reg for i.MX8MM " Richard Zhu
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