Subject: [PATCH 2/2] dt-bindings: imx6q-pcie: add "fsl, pcie-phy-refclk-internal" for i.MX7D

From: André Draszik <[email-masked]>
Date: Tue, 13 Aug 2019 11:37:59 +0100

The i.MX7D variant of the IP can use either an external
crystal oscillator input or an internal clock input as
a reference clock input for the PCIe PHY.

Document the optional property 'fsl,pcie-phy-refclk-internal'

Signed-off-by: André Draszik <[email-masked]>
Cc: Richard Zhu <[email-masked]>
Cc: Lucas Stach <[email-masked]>
Cc: Bjorn Helgaas <[email-masked]>
Cc: Rob Herring <[email-masked]>
Cc: Mark Rutland <[email-masked]>
Cc: Shawn Guo <[email-masked]>
Cc: Sascha Hauer <[email-masked]>
Cc: Pengutronix Kernel Team <[email-masked]>
Cc: Fabio Estevam <[email-masked]>
Cc: NXP Linux Team <[email-masked]>
Cc: [email-masked]
Cc: [email-masked]
Cc: [email-masked]
Cc: [email-masked]
---
 Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
index a7f5f5afa0e6..985d7083df9f 100644
--- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
@@ -56,6 +56,11 @@ Additional required properties for imx7d-pcie and imx8mq-pcie:
 	       - "turnoff"
 - fsl,imx7d-pcie-phy: A phandle to an fsl,imx7d-pcie-phy node.
 
+Additional optional properties for imx7d-pcie:
+- fsl,pcie-phy-refclk-internal: If present then an internal PLL input is used
+  as PCIe PHY reference clock source. By default an external ocsillator input
+  is used.
+
 Additional required properties for imx8mq-pcie:
 - clock-names: Must include the following additional entries:
 	- "pcie_aux"
-- 
2.23.0.rc1

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