dt-bindings: imx6q-pcie: add some optional property entries

Add some optional property entries.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Fugang Duan <fugang.duan@nxp.com>

diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
index de4b2ba..8906f8d 100644 (file)
--- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
@@ -38,6 +38,15 @@ Optional properties:
   The regulator will be enabled when initializing the PCIe host and
   disabled either as part of the init process or when shutting down the
   host.
+- ext_osc: use the external oscillator as ref clock( 1: external OSC is
+  used, 0 internal PLL is used).
+- hard_wired: the PCIe port is hard wired to the EP device(0: one slot
+  is connected).
+- reserved-region: one reserved no-map memory used by PCIe EP/RC
+  validation system.
+- interrupt-names: Optional include the following entries:
+       - "dma": The interrupt that is asserted when an DMA interrupter
+       is received
 
 Additional required properties for imx6sx-pcie:
 - clock names: Must include the following additional entries: