From: Richard Zhu <hongxing.zhu@nxp.com>
To: frank.li@nxp.com, l.stach@pengutronix.de, lpieralisi@kernel.org,
kwilczynski@kernel.org, mani@kernel.org, robh@kernel.org,
krzk+dt@kernel.org, conor+dt@kernel.org, bhelgaas@google.com,
shawnguo@kernel.org, s.hauer@pengutronix.de,
kernel@pengutronix.de, festevam@gmail.com
Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, imx@lists.linux.dev,
linux-kernel@vger.kernel.org, Richard Zhu <hongxing.zhu@nxp.com>
Subject: [PATCH v2 1/2] dt-binding: pci-imx6: Add external reference clock mode support
Date: Thu, 19 Jun 2025 17:10:03 +0800 [thread overview]
Message-ID: <20250619091004.338419-2-hongxing.zhu@nxp.com> (raw)
In-Reply-To: <20250619091004.338419-1-hongxing.zhu@nxp.com>
On i.MX, the PCIe reference clock might come from either internal
system PLL or external clock source.
Add the external reference clock source for reference clock.
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
---
Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
index ca5f2970f217..c472a5daae6e 100644
--- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
@@ -219,7 +219,12 @@ allOf:
- const: pcie_bus
- const: pcie_phy
- const: pcie_aux
- - const: ref
+ - description: PCIe reference clock.
+ oneOf:
+ - description: The controller might be configured clocking
+ coming in from either an internal system PLL or an
+ external clock source.
+ enum: [ref, gio]
unevaluatedProperties: false
--
2.37.1
next prev parent reply other threads:[~2025-06-19 10:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-19 9:10 [PATCH v2 0/2] PCI: imx6: Add external reference clock mode support Richard Zhu
2025-06-19 9:10 ` Richard Zhu [this message]
2025-06-19 14:49 ` [PATCH v2 1/2] dt-binding: pci-imx6: " Frank Li
2025-06-19 9:10 ` [PATCH v2 2/2] PCI: imx6: " Richard Zhu
2025-06-19 14:54 ` Frank Li
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