From: "Rob Herring (Arm)" <robh@kernel.org>
To: Richard Zhu <hongxing.zhu@nxp.com>
Cc: bhelgaas@google.com, s.hauer@pengutronix.de,
Frank Li <Frank.Li@nxp.com>,
linux-pci@vger.kernel.org, mani@kernel.org, imx@lists.linux.dev,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
lpieralisi@kernel.org, frank.li@nxp.com, kwilczynski@kernel.org,
kernel@pengutronix.de, festevam@gmail.com,
l.stach@pengutronix.de, linux-arm-kernel@lists.infradead.org,
krzk+dt@kernel.org, conor+dt@kernel.org, shawnguo@kernel.org
Subject: Re: [PATCH v10 2/4] dt-bindings: PCI: pci-imx6: Add external reference clock input
Date: Thu, 11 Dec 2025 09:20:07 -0600 [thread overview]
Message-ID: <176546640668.1250530.16683675929770601103.robh@kernel.org> (raw)
In-Reply-To: <20251211064821.2707001-3-hongxing.zhu@nxp.com>
On Thu, 11 Dec 2025 14:48:19 +0800, Richard Zhu wrote:
> i.MX95 PCIes have two reference clock inputs: one from internal PLL.
> It's wired inside chip and present as "ref" clock. It's not an optional
> clock. The other from off chip crystal oscillator. The "extref" clock
> refers to a reference clock from an external crystal oscillator through
> the CLKIN_N/P pair PADs. It is an optional clock, relied on the board
> design.
>
> Add additional optional external reference clock input for i.MX95 PCIes.
>
> Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
> Reviewed-by: Frank Li <Frank.Li@nxp.com>
> ---
> Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
next prev parent reply other threads:[~2025-12-11 15:20 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-11 6:48 [PATCH v10 0/4] PCI: imx6: Add external reference clock mode support Richard Zhu
2025-12-11 6:48 ` [PATCH v10 1/4] dt-bindings: PCI: dwc: Add external reference clock input Richard Zhu
2025-12-11 6:48 ` [PATCH v10 2/4] dt-bindings: PCI: pci-imx6: " Richard Zhu
2025-12-11 15:20 ` Rob Herring (Arm) [this message]
2025-12-11 6:48 ` [PATCH v10 3/4] PCI: imx6: Add external reference clock input mode support Richard Zhu
2025-12-11 6:48 ` [PATCH v10 4/4] arm64: dt: imx95: Add the missed ref clock for PCIe[0,1] Richard Zhu
2025-12-30 3:28 ` Shawn Guo
2025-12-30 6:31 ` Hongxing Zhu
2025-12-23 12:35 ` (subset) [PATCH v10 0/4] PCI: imx6: Add external reference clock mode support Manivannan Sadhasivam
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